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1 Not Recommended for New Designs This product was manufactured for Maxim by an outside wafer foundry using a process that is no longer available. It is not recommended for new designs. The data sheet remains available for existing users. A Maxim replacement or an industry second-source may be available. Please see the QuickView data sheet for this part or contact technical support for assistance. For further information, contact Maxim s Applications Tech Support.
2 9-5; Rev ; /0 Pin-Programmable, Precision Voltage General Description Maxim s is a temperature-compensated, bandgap voltage reference which provides pin-programmable output voltages of +0.00V, +7.50V, +5.00V, and +.50V. External components are not required for these outputs, but if other voltages are desired, they can be programmed with external resistors. Laser trimming minimizes output error as well as temperature drift, to as low as 0mV and 5ppm/ C with the K. The input voltage range of the MAX5 is. to 0V. The reference also includes a STROBE input which shuts down the reference output. Typical current drain when ON is 750µA. This drops to about 00µA when the reference is strobed OFF. The is designed for use with - to -bit A/D and D/A converters as well as data acquisition systems. It is available in -lead TO-99 metal cans, plastic DIPS, CERDIPS, and SO packages. CMOS DAC A/D Converter Measurement Instrumentation Data Loggers Precision Analog Systems Programmable Offset for PGAs Applications +0.0V, +7., +5.0V, +. Programmable Outputs ±0mV Tolerance at +0V (K) Low Tempco: 5ppm/ C, max (MAX5K) No External Components or Trims Short-Circuit Proof Output Sources and Sinks Current 0mA Output Current Features Ordering Information PART TEMP RANGE PIN-PACKAGE ERROR JH 0 C to +70 C TO-99 Can ±0mV KH 0 C to +70 C TO-99 Can ±0mV JN 0 C to +70 C PDIP ±0mV KN 0 C to +70 C PDIP ±0mV JCSA 0 C to +70 C SO ±0mV KCSA 0 C to +70 C SO ±0mV JESA -0 C to +5 C SO ±0mV KESA -0 C to +5 C SO ±0mV JC/D 0 C to +70 C Dice ±0mV SH -55 C to +5 C TO-99 Can ±0mV TH -55 C to +5 C TO-99 Can ±0mV SQ -55 C to +5 C CERDIP ±0mV TQ -55 C to +5 C CERDIP ±0mV Pin Configuration Typical Operating Circuit TOP VIEW 0.0V 5.0V 7 CAP. 6 V BG MON 5 STROBE -Lead DIP TAB 0.0V 7 CAP 0.0µF 0V MON - R FB OUT MX75 OUT V REF GND MAX00 0 TO 5.0V 6 V BG.kΩ. MON TO-9 5 STROBE - - REFERENCE FOR CMOS DAC Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at , or visit Maxim s website at
3 ABSOLUTE MAXIMUM RATINGS Input Voltage (V IN to MON)...-0.V, +0V Continuous Power Dissipation Metal Can (derate 6.7mW/ C above +60 C)...600mW CERDIP (derate mw/ C above +75 C)...600mW Plastic DIP (derate 6mW/ C above +75 C)...50mW SO (derate 5.mW/ C above +75 C)...00mW Output Short-Circuit Duration (Note )...Indefinite Operating Temperature Range Commercial (J, K)...0 C to +70 C Military (S, T) C to +5 C Extended (J, K)...-0 C to +5 C Note : Absolute maximum power dissipation must not be exceeded. Storage Temperature Range C to +50 C Lead Temperature (soldering, 0s) C Die Junction Temperature (T J ) C to +50 C Thermal Resistance, Junction to Ambient Metal Can C/W CERDIP...+5 C/W Plastic DIP C/W SO C/W Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V IN = +, T A = +5 C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Output Voltage Tolerance I L = 0mA, at Pin Output Voltage Temperature Coefficient = +0V, MAX5J/S ±0 MAX5K/T ±0 = +7., MAX5J/S ± MAX5K/T ± = +5.0V, MAX5J/S ±5 MAX5K/T ±6 = +., MAX5J/S ±7.5 MAX5K/T ±.5 J/S, all outputs 0 K, all outputs 5 KE, all outputs 0 JE, all outputs 0 T, +0V, +7., + out 5 +. out 0 Differential Tempco Between K/T Outputs J/S 5 Quiescent Supply Current I Q I L = 0mA µa mv ppm/ C ppm/ C Quiescent Current Tempco.5 µa/ C Turn-On Settling Time t ON To ±% 00 µs Noise e n(p-p) 0.Hz to 0Hz 50 µv P-P Long-Term Stability Noncumulative 5 p p m /khr s Short-Circuit Current I SC 0 ma Line Regulation No load ( +.) < V IN < < V IN < +0V 0.00 %/V
4 ELECTRICAL CHARACTERISTICS (continued) (V IN = +, T A = +5 C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Load Regulation I L = 0mA to 5mA 0 ppm/ma Output Current Source Sink (Note ) I L V IN > +. Note : C LOAD 0nF. See the Output Current section. T A = +5 C 0 T MIN to T MAX 5 J/K 5 T MIN to T MAX S/T 0. T A = -55 C to +5 C S/T 5 ma (T A = +5 C, unless otherwise noted.) Typical Operating Characteristics VOUT (V) TYPICAL TEMPERATURE CHARACTERISTICS toc SPECTRAL NOISE DENSITY AND RMS NOISE vs. FREQUENCY NOISE SPECTRAL DENSITY (mv/ Hz) NO CAP 0.0µF 00pF 000pF NO CAP TOTAL NOISE µrms UP TO SPECIFIED FREQUENCY toc0 OUTPUT VOLTAGE (V) 0 6 OUTPUT VOLTAGE vs. SINK AND SOURCE CURRENT = + T A = +5 C toc TEMPERATURE ( C) 0 00 k 0k 00k M FREQUENCY (Hz) SOURCE SINK OUTPUT CURRENT (ma) POWER-ON SETTLING CHARACTERISTICS toc0 OUTPUT (V) OUTPUT (V) POWER-SUPPLY INPUT (V) SETTLING TIME (µs)
5 Detailed Description As shown in Figure, most applications of the require no external components. Connections to and MON (MON is also tied to the case in the TO-99 metal package) with all other pins unconnected result in a buffered +0.00V output at pin. The other pretrimmed voltages are obtained by strapping pins as shown in Table. If one or more external buffer amplifiers are connected to the programming pins (pins, ), multiple outputs can be obtained from one reference. Other Output Voltages The can be adjusted to a different output voltage by adding one or more resistors as in Figure. As the diagram shows, the reference can be thought of as a. bandgap followed by a noninverting amplifier. If R and R are used alone, the adjustment range is widest but the resolution of the trim may be too coarse, even when a multi-turn trip pot is used. When adding external resistors, output voltages well above 0V can be obtained. R should therefore be chosen carefully since it sets the maximum output voltage. R s resistance should not be so low as to jeopardize other circuits if R is misadjusted. The fixed output voltages can also be varied by connecting only one resistor, as in the dashed lines in Figure. Connecting R alone raises while R alone lowers it. These resistors (or potentiometers) must have very low temperature coefficients if accuracy over temperature is to be unaffected by the adjustment. If fine adjustment of the output is all that is required, the circuit of Figure is recommended. It provides good stability and resolution for a trim range of ±00mV. If the. output is adjusted, R should be connected to V BG, pin 6, and the trim range should be limited to ±00mV. Voltage Temperature Coefficient The temperature characteristic of the consistently follows an "S-curve" as shown in the Typical Operating Characteristics. A five-point 00% test guarantees compliance with -55 C to +5 C specifications and a three-point 00% test guarantees 0 C to +70 C specifications. The tolerance specifications in the Electrical Characteristics table state the maximum deviation from the reference s initial value at +5 C. By adding the maximum deviation for a given device to its initial tolerance, the total possible error is determined. Table. Programming Pin Connections OUTPUT VOLTAGE (V) PROGRAMMING (OUTPUT ON PIN ) 0 Pins and are unconnected 7.5 Connect pins and together 5.0 Connect pins and together.5 Connect pins and together +( +.) TO +0V 0.0V 5.0V., +., +5.0V, +7., +0V Figure. Basic Connection for Positive Outputs +. V SUPPLY +.* kω kω kω 0V. V BG *THE. TAP (PIN ) IS USED INTERNALLY AS A BIAS POINT AND SHOULD NOT BE CHANGED BY MORE THAN 00mV IN ANY TRIM CONFIGURATION. 5 R R R R Figure. Variable Output Options
6 V SUPPLY 0.0V 5.0V. V BG 6 R 00kΩ R 0kΩ C 0.µF V IN 70Ω N V AT A Figure. Fine Adjustment of Output Voltage (±00mV) Figure 6. High-Current Precision Supply V SUPPLY 0.0µF TO 0.µF 7 6 CAP V BG 0.0V 5.0V. 0V. DARLINGTON NPN N057 *INCREASES COLD START TURN-ON TIME. kω = +0V Figure. Additional Noise Filtering with an External Capacitor Figure 7. NPN Output Current Booster V SUPPLY 0V 00Ω* 5 STRB. 0.0V. I mA R R LOGIC INPUT (HIGH = OFF LOW = ON) 0kΩ N 0kΩ *SEE TEXT. Figure 5. Use of Strobe Terminal Figure. Precision Current Limiter 5
7 0.0µF 0V RS.kΩ 5% ANALOG GROUND V REF = - 0V 5 DIGITAL INPUT 7. to 6 R FB OUT MX75 V REF OUT GND - 0 TO - MAX00-7. TO - - Figure 9. Two-Terminal - Output Current The is capable of sinking as well as sourcing current. The circuit is also protected for output shorts to either +VS or ground (MON). The output s voltage versus current characteristic is shown in the Typical Operating Characteristics section. For applications that require the to sink current, maintain a load capacitance of 0nF or greater for proper operation. Dynamic Performance The turn-on settling performance of the is shown in the Typical Operating Characteristics. Both coarse and fine transient response is shown. The reference typically settles to mv (0V output) within 0µs after power is applied. Noise Filtering The bandwidth of the s output amplifier can be limited by connecting a capacitor between the CAP and VBG pins (see Figure ). Typical values range from 0.0µF to 0.µF. The reduction of wideband and feedthrough noise is plotted in a graph in the Typical Operating Characteristics section. Strobe Input The STROBE input, pin 5, zeroes the reference output when it is pulled LOW. If no current is pulled from STROBE, operation is normal. The threshold of the input is 00mV, so an open-drain n-channel FET or open-collector transistor driven from logic is recommended (see Figure 5). The current-sinking ability should be at least 500µA and the leakage current should be 5µA or less. While shut down, the should not be required to source or sink current unless a 0.7V residual output is acceptable. If the reference is required to sink transient current while shut down, the Figure 0. Low-Power, 0-Bit CMOS DAC Connection 0V. - kω 5% V REF -. REF 0.0µF INPUT 0 TO +. AGND + V DD DGND DIGITAL OUTPUTS current flowing out of STROBE should be limited with 00Ω as shown in the dashed connection in Figure 5. Applications Information Precision High-Current A PNP power transistor, or Darlington, is easily connected to the to greatly increase its output current. The circuit in Figure 6 provides a +0V output at up to A. If the load has a significant capacitive component, C should be added. If the load is purely resistive, highfrequency supply rejection is improved without C. An NPN output transistor or Darlington can also be used to boost output current as shown in Figure 7. Current Limiter By adding a single resistor as shown in Figure, the is turned into a precision current limiter for 5 B OFS A IN MX757 DB0 DB7-6 Figure. as Negative. for a CMOS ADC 6
8 applications where the driving voltage is to 0V. The programmed current ranges from 0.75mA to 5mA. Negative 0V In applications which require a -0V, -7., -5.0V, or -. reference, the can be connected as a two-terminal device and biased like a zener diode. The circuit is shown in Figure 9. and are connected to the analog ground bus, and the s - MON pin is connected, through a resistor, to the negative supply. With ma flowing in the reference, the output voltage is typically mv greater than what is obtained with the conventional, positive hook-up. When using the -terminal connection, the load and the bias resistor must be selected so that the current flowing in the reference is maintained between ma and 5mA. The operating temperature range for this connection is limited to -55 C to +5 C. for DACs and ADCs The is well suited for use with a wide variety of DACs, especially CMOS DACs. Figure 0 shows a circuit in which an MX75 0-bit DAC outputs 0 to - when using a + reference. For a positive DAC output, the can be configured as a two-terminal negative reference as well by using the connection of Figure 9. In Figure, an MX757 CMOS ADC uses an, connected for -., as its reference input so that the system can operate from ± power. The analog input range for the circuit is 0V to V 5.0V. 0.07" (.09mm) CAP V BG TRANSISTOR COUNT: 7 SUBSTRATE CONNECTED TO GND Chip Topography MON STROBE 0.07" (.0mm) MON Chip Information 7
9 Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to TO-99, LD.EPS
10 Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to PDIPN.EPS 9
11 Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to N E H INCHES MILLIMETERS DIM MIN MAX MIN MAX A A B C e BSC.7 BSC E H L SOICN.EPS TOP VIEW VARIATIONS: DIM D D D INCHES MILLIMETERS MIN MAX MIN MAX N MS AA AB AC D A C e B A FRONT VIEW L SIDE VIEW 0 - PROPRIETARY INFORMATION TITLE: PACKAGE OUTLINE,.50" SOIC APPROVAL DOCUMENT CONTROL NO. REV. -00 B Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 0 Maxim Integrated Products, 0 San Gabriel Drive, Sunnyvale, CA Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
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13-1395; Rev 1; /99 Low-Cost, Low-Power, Low-Dropout, General Description The family of SOT23, low-cost series voltage references meets the cost advantage of shunt references and offers the power-saving
More information140ms (min) WDO Pulse Period PART. Maxim Integrated Products 1
19-2804; Rev 2; 12/05 5-Pin Watchdog Timer Circuit General Description The is a low-power watchdog circuit in a tiny 5- pin SC70 package. This device improves system reliability by monitoring the system
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9-299; Rev. 6; 6/7 Precision, 8-Channel/Dual 4-Channel, General Description The precision, monolithic, CMOS analog multiplexers (muxes) offer low on-resistance (less than Ω), which is matched to within
More informationOSC2 Selector Guide appears at end of data sheet. Maxim Integrated Products 1
9-3697; Rev 0; 4/05 3-Pin Silicon Oscillator General Description The is a silicon oscillator intended as a low-cost improvement to ceramic resonators, crystals, and crystal oscillator modules as the clock
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9-234; Rev ; 2/7 Four-Channel Thermistor Temperature-to-Pulse- General Description The four-channel thermistor temperature-topulse-width converter measures the temperatures of up to four thermistors and
More informationNot Recommended for New Designs
Not Recommended for New Designs This product was manufactured for Maxim by an outside wafer foundry using a process that is no longer available. It is not recommended for new designs. The data sheet remains
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9-265; Rev 2; /4 General Description The are 28-tap high-voltage (±5V to ±5V) digital potentiometers in packages that are half the size of comparable devices in 8-pin SO. They perform the same function
More informationPART. Note: All devices are specified over the -40 C to +125 C operating PART. Maxim Integrated Products 1
9-2424; Rev 2; 5/6 Ultra-Low Offset/Drift, Low-Noise, General Description The are low-noise, low-drift, ultrahigh precision amplifiers that offer near-zero DC offset and drift through the use of autocorrelating
More informationWideband, High Output Current, Fast Settling Op Amp AD842
a FEATURES AC PERFORMAE Gain Bandwidth Product: 8 MHz (Gain = 2) Fast Settling: ns to.1% for a V Step Slew Rate: 375 V/ s Stable at Gains of 2 or Greater Full Power Bandwidth: 6. MHz for V p-p DC PERFORMAE
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a FEATURES High DC Precision 75 V Max Offset Voltage V/ C Max Offset Voltage Drift 5 pa Max Input Bias Current.2 pa/ C Typical I B Drift Low Noise.5 V p-p Typical Noise,. Hz to Hz Low Power 6 A Max Supply
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9-4994; Rev ; 9/ EVALUATION KIT AVAILABLE 76V, APD, Dual Output Current Monitor General Description The integrates the discrete high-voltage components necessary for avalanche photodiode (APD) bias and
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9-998; Rev ; /7 EVALUATION KIT AVAILABLE.GHz to GHz, 75dB Logarithmic General Description The MAX5 complete multistage logarithmic amplifier is designed to accurately convert radio-frequency (RF) signal
More information27pF TO ADC C FILTER (OPTIONAL) Maxim Integrated Products 1
19-215; Rev 6; 9/6 EVALUATION KIT AVAILABLE RF Power Detectors in UCSP General Description The wideband (8MHz to 2GHz) power detectors are ideal for GSM/EDGE (MAX226), TDMA (MAX227), and CDMA (MAX225/MAX228)
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19-2418; Rev ; 4/2 Quad, Rail-to-Rail, Fault-Protected, General Description The are quad, single-pole/single-throw (SPST), fault-protected analog switches. They are pin compatible with the industry-standard
More informationPART MAX1658C/D MAX1659C/D TOP VIEW
19-1263; Rev 0; 7/97 350mA, 16.5V Input, General Description The linear regulators maximize battery life by combining ultra-low supply currents and low dropout voltages. They feature Dual Mode operation,
More informationTOP VIEW. Maxim Integrated Products 1
19-295; Rev ; 8/1 High-Current VCOM Drive Buffer General Description The is a high-current operational transconductance amplifier. The is ideal for driving the backplane of an active matrix, dot inversion
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19-2911 Rev 3; 8/6 EVALUATION KIT AVAILABLE EEPROM-Programmable TFT Calibrator General Description The is a programmable -adjustment solution for thin-film transistor (TFT) liquid-crystal displays (LCDs).
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a FEATURES High Speed 41 MHz, 3 db Bandwidth 125 V/ s Slew Rate 8 ns Settling Time Input Bias Current of 2 pa and Noise Current of 1 fa/ Hz Input Voltage Noise of 12 nv/ Hz Fully Specified Power Supplies:
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19-2241; Rev 1; 8/02 Cold-Junction-Compensated K-Thermocoupleto-Digital General Description The cold-junction-compensation thermocouple-to-digital converter performs cold-junction compensation and digitizes
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19-4788; Rev 1; 6/99 8th-Order, Lowpass, Bessel, General Description The / 8th-order, lowpass, Bessel, switched-capacitor filters (SCFs) operate from a single +5 () or +3 () supply. These devices draw
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19-1225; Rev 3; 9/4 High-Voltage, Low-Power Linear Regulators General Description The are micropower, SOT23-5 linear regulators that supply always-on, keep-alive power to CMOS RAM and microcontrollers
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Not Recommended for New Designs The MAX9 was manufactured for Maxim by an outside wafer foundry using a process that is no longer available. It is not recommended for new designs. A Maxim replacement or
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19-3252; Rev 0; 5/04 270Mbps SFP LED Driver General Description The is a programmable LED driver for fiber optic transmitters operating at data rates up to 270Mbps. The circuit contains a high-speed current
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a FEATURES Eight 8-Bit DACs with Output Amplifiers Operates with Single +5 V, +12 V or +15 V or Dual Supplies P Compatible (95 ns WR Pulse) No User Trims Required Skinny 24-Pin DlPs, SOIC, and 28-Terminal
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19-1812; Rev ; 1/1 5mA, Low-Dropout, General Description The low-dropout linear regulator operates from a +2.5V to +5.5V supply and delivers a guaranteed 5mA load current with low 12mV dropout. The high-accuracy
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Not Recommended for New Designs This product was manufactured for Maxim by an outside wafer foundry using a process that is no longer available. It is not recommended for new designs. The data sheet remains
More informationPART MAX5541ESA REF CS DIN SCLK. Maxim Integrated Products 1
9-572; Rev 2; 6/2 Low-Cost, +5, Serial-Input, General Description The serial-input, voltage-output, 6-bit monotonic digital-to-analog converter (DAC) operates from a single +5 supply. The DAC output is
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9-2939; Rev ; 9/3 5V, Mbps, Low Supply Current General Description The interface between the controller area network (CAN) protocol controller and the physical wires of the bus lines in a CAN. They are
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19-4398; Rev ; 2/9 38V, Low-Noise, MOS-Input, General Description The operational amplifier features an excellent combination of low operating power and low input voltage noise. In addition, MOS inputs
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19-367; Rev 1; 2/6 EVALUATION KIT AVAILABLE 32-Tap, Nonvolatile, Linear-Taper Digital General Description The lineartaper digital potentiometers function as mechanical potentiometers, but replace the mechanics
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19-195; Rev 1; 1/4 1-Bit, Low-Power, Rail-to-Rail General Description The is a small footprint, low-power, 1-bit digital-to-analog converter (DAC) that operates from a single +.7V to +5.5V supply. The
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a FEATURES HIGH SPEED 50 MHz Unity Gain Stable Operation 300 V/ s Slew Rate 120 ns Settling Time Drives Unlimited Capacitive Loads EXCELLENT VIDEO PERFORMANCE 0.04% Differential Gain @ 4.4 MHz 0.19 Differential
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