200MHz, CMOS OPERATIONAL AMPLIFIER WITH SHUTDOWN

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1 OPA55 OPA55 OPA55 OPA55 OPA55 SBOS95D MARCH REVISED JANUARY MHz, CMOS OPERATIONAL AMPLIFIER WITH SHUTDOWN FEATURES UNITY-GAIN BANDWIDTH: 5MHz WIDE BANDWIDTH: MHz GBW HIGH SLEW RATE: V/µs LOW NOISE: 5.8nV/ Hz EXCELLENT VIDEO PERFORMANCE: DIFF GAIN:.%, DIFF PHASE:.5.dB GAIN FLATNESS: 75MHz INPUT RANGE INCLUDES GROUND RAIL-TO-RAIL OUTPUT (within mv) LOW INPUT BIAS CURRENT: pa LOW SHUTDOWN CURRENT:.µA ENABLE/DISABLE TIME: ns/ns THERMAL SHUTDOWN SINGLE-SUPPLY OPERATING RANGE:.5V to 5.5V MicroSIZE PACKAGES APPLICATIONS DESCRIPTION The series high-speed, voltage-feedback CMOS operational amplifiers are designed for video and other applications requiring wide bandwidth. The is unitygain stable and can drive large output currents. In addition, the has a digital shutdown (Enable) function. This feature provides power savings during idle periods and places the output in a high-impedance state to support output multiplexing. Differential gain is.% and differential phase is.5. Quiescent current is only 8.mA per channel. The is optimized for operation on single or dual supplies as low as.5v (±.5V) and up to 5.5V (±.75V). Common-mode input range for the extends mv below ground and up to.5v from V+. The output swing is within mv of the rails, supporting wide dynamic range. The series is available in single (SOT- and SO-8), dual (MSOP-), and triple (TSSOP- and SO-) versions. Multichannel versions feature completely independent circuitry for lowest crosstalk and freedom from interaction. All are specified over the extended C to +5 C range. VIDEO PROCESSING ULTRASOUND OPTICAL NETWORKING, TUNABLE LASERS PHOTODIODE TRANSIMPEDANCE AMPS ACTIVE FILTERS HIGH-SPEED INTEGRATORS ANALOG-TO-DIGITAL (A/D) CONVERTER INPUT BUFFERS DIGITAL-TO-ANALOG (D/A) CONVERTER OUTPUT AMPLIFIERS BARCODE SCANNERS COMMUNICATIONS RELATED PRODUCTS FEATURES MHz, Rail-to-Rail Output, CMOS, No Shutdown 8MHz, Rail-to-Rail Input/Output, CMOS 75MHz, Rail-to-Rail Output 5MHz, Rail-to-Rail Output Differential Input/Output,.V Supply V+ V IN Out +V IN V Enable PRODUCT OPA5 OPAx5 OPAx OPAx THSx Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright -, Texas Instruments Incorporated

2 ABSOLUTE MAXIMUM RATINGS () Supply Voltage, V+ to V V Signal Input Terminals, Voltage ()... (V ).5V to (V+) +.5V Current ()... ma Enable Input... (V ).5V to (V+) +.5V Output Short-Circuit ()... Continuous Operating Temperature C to +5 C Storage Temperature... 5 C to +5 C Junction Temperature... + C Lead Temperature (soldering, s)... + C NOTES: () Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied. () Input terminals are diode-clamped to the power-supply rails. Input signals that can swing more than.5v beyond the supply rails should be current limited to ma or less. () Short-circuit to ground, one amplifier per package. ELECTROSTATIC DISCHARGE SENSITIVITY This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. PACKAGE/ORDERING INFORMATION () PACKAGE PRODUCT PACKAGE-LEAD MARKING SOT- C55 " " " SO-8 UA " " " OPA55 MSOP- D55 " " " OPA55 TSSOP- OPA55EA " " " OPA55 SO- OPA55UA " " " NOTE: () For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet. PIN CONFIGURATIONS Top View Out C55 V+ NC () 8 Enable V 5 Enable In 7 V+ +In In +In Out SOT- () V 5 NC () OPA55 NOTES: () Pin of the SOT- is determined by orienting the package marking as indicated in the diagram. () NC indicates no internal connection. SO-8 OPA55 Out A V+ Enable A Out C In A +In A V A B Out B In B +In B Enable B Enable C V+ C In C +In C V Enable A 5 MSOP- Enable B +In A In A Out A 5 7 A B 9 8 +In B In B Out B SO- TSSOP-, 55, 55 SBOS95D

3 ELECTRICAL CHARACTERISTICS: V S = +.7V to +5.5V Single-Supply Boldface limits apply over the specified temperature range, T A = C to +5 C. At T A = +5 C, R F = Ω, R L = 5Ω, and connected to V S /, unless otherwise noted. OPA55 OPA55 PARAMETER CONDITION MIN TYP MAX UNITS OFFSET VOLTAGE Input Offset Voltage V OS V S = +5V ± ±9 mv Specified Temperature Range ±5 mv vs Temperature dv OS /dt Specified Temperature Range ±7 µv/ C vs Power Supply PSRR V S = +.7V to +5.5V, V CM = V S /.5V ±8 ±5 µv/v INPUT BIAS CURRENT Input Bias Current I B ±5 pa Input Offset Current I OS ± ±5 pa NOISE Input Noise Voltage Density e n f = MHz 5.8 nv/ Hz Current Noise Density i n f = MHz 5 fa/ Hz INPUT VOLTAGE RANGE Common-Mode Voltage Range V CM (V ). (V+).5 V Common-Mode Rejection Ratio CMRR V S = +5.5V,.V < V CM < +.V 8 db Specified Temperature Range db INPUT IMPEDANCE Differential.5 Ω pf Common-Mode.5 Ω pf OPEN-LOOP GAIN V S = +5V,.V < V O <.7V 8 9 db V S = +5V,.V < V O <.7V 8 db OPA55, OPA55 V S = +5V,.V < V O <.V 8 db FREQUENCY RESPONSE Small-Signal Bandwidth f db G = +, V O = mvp-p, R F = Ω 5 MHz f db G = +, V O = mvp-p, R L = 5Ω MHz f db G = +, V O = mvp-p, R L = 5Ω 7 MHz f db G = +, V O = mvp-p, R L = kω MHz Gain-Bandwidth Product GBW G = +, R L = kω MHz Bandwidth for.db Gain Flatness f.db G = +, V O = mvp-p, R F = 5Ω 75 MHz Slew Rate SR V S = +5V, G = +, V Output Step / V/µs Rise-and-Fall Time G = +, V O = mvp-p, % to 9%. ns G = +, V O = Vp-p, % to 9% 8 ns Settling Time,.% V S = +5V, G = +, V Output Step ns.% V S = +5V, G = +, V Output Step ns Overload Recovery Time V IN Gain = V S 8 ns Harmonic Distortion nd-harmonic G = +, f = MHz, V O = Vp-p, R L = Ω 8 dbc rd-harmonic G = +, f = MHz, V O = Vp-p, R L = Ω 9 dbc Differential Gain Error NTSC, R L = 5Ω. % Differential Phase Error NTSC, R L = 5Ω.5 degrees Channel-to-Channel Crosstalk OPA55 f = 5MHz 9 db OPA55 f = 5MHz 7 db OUTPUT Voltage Output Swing from Rail V S = +5V, R L = 5Ω, A OL > 8dB.. V Voltage Output Swing from Rail V S = +5V, R L = kω. V Output Current, Continuous () I O ± ma Output Current, Peak () I O V S = +5V ± ma Output Current, Peak () I O V S = +V ±8 ma Closed-Loop Output Impedance f < khz. Ω POWER SUPPLY Specified Voltage Range V S V Operating Voltage Range.5 to 5.5 V Quiescent Current (per amplifier) I Q V S = +5V, Enabled, I O = 8. ma Specified Temperature Range ma NOTES: () See typical characteristic Output Voltage Swing vs Output Current. () Logic LOW and HIGH levels are CMOS logic compatible. They are referenced to V., 55, 55 SBOS95D

4 ELECTRICAL CHARACTERISTICS: V S = +.7V to +5.5V Single-Supply (Cont.) Boldface limits apply over the specified temperature range, T A = C to +5 C. At T A = +5 C, R F = Ω, R L = 5Ω, and connected to V S /, unless otherwise noted. OPA55 OPA55 PARAMETER CONDITION MIN TYP MAX UNITS SHUTDOWN Disabled (Logic-LOW Threshold) ().8 V Enabled (Logic-HIGH Threshold) () V Enable Time ns Disable Time ns Shutdown Current (per amplifier) V S = +5V, Disabled. µa THERMAL SHUTDOWN Junction Temperature Shutdown C Reset from Shutdown C TEMPERATURE RANGE Specified Range 5 C Operating Range 55 5 C Storage Range 5 5 C Thermal Resistance θ JA C/W SOT--, MSOP- 5 C/W SO-8 5 C/W SO-, TSSOP- C/W NOTES: () See typical characteristic Output Voltage Swing vs Output Current. () Logic LOW and HIGH levels are CMOS logic compatible. They are referenced to V., 55, 55 SBOS95D

5 TYPICAL CHARACTERISTICS At T A = +5 C, V S = 5V, G = +, R F = Ω, and R L = 5Ω connected to V S /, unless otherwise noted. Normalized Gain (db) 9 V O =.Vp-p NONINVERTING SMALL-SIGNAL FREQUENCY RESPONSE G = + G = +5 G = + G = + R F = Normalized Gain (db) 9 V O =.Vp-p INVERTING SMALL-SIGNAL FREQUENCY RESPONSE G = 5 G = G = G = 5 k M M M G 5 k M M M G NON-INVERTING SMALL-SIGNAL STEP RESPONSE NONINVERTING LARGE-SIGNAL STEP RESPONSE Output Voltage (5mV/div) G = + Output Voltage (5mV/div) G = + Time (ns/div) Time (ns/div) Output Voltage (5mV/div) Disabled LARGE-SIGNAL DISABLE/ENABLE RESPONSE Enabled f IN = 5MHz V OUT Disable Voltage (V) Normalized Gain (db) db GAIN FLATNESS FOR VARIOUS R F V O =.Vp-p C L = pf R F = 5Ω R F = 5Ω R F = Ω Time (ns/div).5 Frequency (MHz), 55, 55 SBOS95D 5

6 TYPICAL CHARACTERISTICS (Cont.) At T A = +5 C, V S = 5V, G = +, R F = Ω, and R L = 5Ω connected to V S /, unless otherwise noted. Harmonic Distortion (dbc) HARMONIC DISTORTION vs OUTPUT VOLTAGE f = MHz R L = Ω nd Harmonic rd Harmonic Harmonic Distortion (dbc) HARMONIC DISTORTION vs NONINVERTING GAIN V O = Vp-p f = MHz R L = Ω nd-harmonic rd-harmonic Output Voltage (Vp-p) Gain (V/V) Harmonic Distortion (dbc) HARMONIC DISTORTION vs INVERTING GAIN V O = Vp-p f = MHz R L = Ω nd-harmonic rd-harmonic Harmonic Distortion (dbc) V O = Vp-p R L = Ω HARMONIC DISTORTION vs FREQUENCY nd-harmonic rd-harmonic Gain (V/V) k M M Harmonic Distortion (dbc) HARMONIC DISTORTION vs LOAD RESISTANCE V O = Vp-p f = MHz rd-harmonic R L (Ω) nd-harmonic k Voltage Noise (nv/ Hz), Current Noise (fa/ Hz) k k INPUT VOLTAGE AND CURRENT NOISE SPECTRAL DENSITY vs FREQUENCY Voltage Noise k k k M M Current Noise M, 55, 55 SBOS95D

7 TYPICAL CHARACTERISTICS (Cont.) At T A = +5 C, V S = 5V, G = +, R F = Ω, and R L = 5Ω connected to V S /, unless otherwise noted. Normalized Gain (db) 9 FREQUENCY RESPONSE FOR VARIOUS R L C L = pf V O =.Vp-p R L = 5Ω R L = 5Ω R L = kω R L = kω Normalized Gain (db) 9 9 FREQUENCY RESPONSE FOR VARIOUS C L R S = Ω V O =.Vp-p C L = pf C L = 7pF C L = 5.pF 5 k M M M G 5 k M M M G R S (Ω) 8 V IN RECOMMENDED R S vs CAPACITIVE LOAD Ω R S C L V O kω Normalized Gain (db) 9 V IN FREQUENCY RESPONSE vs CAPACITIVE LOAD G = + V O =.Vp-p Ω C L = pf R S = Ω R S C L kω V O C L = 5.pF R S = 8Ω C L = 7pF R S = Ω Ω (kω is Optional) Ω (kω is Optional) Capacitive Load (pf) 5 M M M G CMRR, PSRR (db) k COMMON-MODE REJECTION RATIO AND POWER-SUPPLY REJECTION RATIO vs FREQUENCY CMRR PSRR +PSRR k M M M G Open-Loop Phase (degrees) Open-Loop Gain (db) 8 8 k R L = kω R L = 5kΩ k OPEN-LOOP GAIN AND PHASE k M M M G Phase Gain, 55, 55 SBOS95D 7

8 TYPICAL CHARACTERISTICS (Cont.) At T A = +5 C, V S = 5V, G = +, R F = Ω, and R L = 5Ω connected to V S /, unless otherwise noted.. COMPOSITE VIDEO DIFFERENTIAL GAIN AND PHASE n INPUT BIAS CURRENT vs TEMPERATURE.5 dg/dp (%/degrees) dp Input Bias Current (pa) n.5 dg Number of 5Ω Loads Temperature ( C) OUTPUT VOLTAGE SWING vs OUTPUT CURRENT FOR V S = V SUPPLY CURRENT vs TEMPERATURE Output Voltage (V) 5 C 5 C 5 C 5 C 55 C Continuous currents above ma are not recommended. 55 C Supply Current (ma) 8 V S = 5V V S = 5.5V V S = V V S =.5V 9 5 Output Current (ma) Temperature ( C) Output Voltage (V) 5 OUTPUT VOLTAGE SWING vs OUTPUT CURRENT FOR V S = 5V 5 C 5 C 5 C 5 C 55 C Continuous currents above ma are not recommended. 55 C Shutdown Current (µa) SHUTDOWN CURRENT vs TEMPERATURE V S = 5.5V V S = 5V V S = V V S =.5V Output Current (ma) Temperature ( C) 8, 55, 55 SBOS95D

9 TYPICAL CHARACTERISTICS (Cont.) At T A = +5 C, V S = 5V, G = +, R F = Ω, and R L = 5Ω connected to V S /, unless otherwise noted. CLOSED-LOOP OUTPUT IMPEDANCE vs FREQUENCY MAXIMUM OUTPUT VOLTAGE vs FREQUENCY V S = 5.5V Output Impedance (Ω).. Ω Ω Z O Output Voltage (Vp-p) 5 V S =.7V Maximum Output Voltage without Slew-Rate Induced Distortion. k k M M M G Frequency (MHz).. V O = Vp-p OUTPUT SETTLING TIME TO.% OPEN-LOOP GAIN vs TEMPERATURE R L = kω Output Error (%)... Open-Loop Gain (db) R L = 5Ω Time (ns) Temperature ( C) OFFSET VOLTAGE PRODUCTION DISTRIBUTION COMMON-MODE REJECTION RATIO AND POWER-SUPPLY REJECTION RATIO vs TEMPERATURE Percent of Amplifiers (%) 8 8 CMRR, PSRR (db) Power-Supply Rejection Ratio Common-Mode Rejection Ratio Offset Voltage (mv) Temperature ( C), 55, 55 SBOS95D 9

10 TYPICAL CHARACTERISTICS (Cont.) At T A = +5 C, V S = 5V, G = +, R F = Ω, and R L = 5Ω connected to V S /, unless otherwise noted. CHANNEL-TO-CHANNEL CROSSTALK Crosstalk, Input-Referred (db) 8 OPA55 (triple) OPA55 (dual) k M M M APPLICATIONS INFORMATION The series is a CMOS, high-speed, voltage-feedback, operational amplifier designed for video and other general-purpose applications. It is available as a single, dual, or triple op amp. The amplifier features a MHz gain bandwidth and V/µs slew rate, but it is unity-gain stable and can be operated as a +V/V voltage follower. Its input common-mode voltage range includes ground, allowing the to be used in virtually any single-supply application up to a supply voltage of +5.5V. PCB LAYOUT Good high-frequency PC board layout techniques should be employed for the. Generous use of ground planes, short direct signal traces, and a suitable bypass capacitor located at the V+ pin will assure clean, stable operation. Large areas of copper also provide a means of dissipating heat that is generated within the amplifier in normal operation. Sockets are definitely not recommended for use with any high-speed amplifier. A nf ceramic bypass capacitor is the minimum recommended value; adding a µf or larger tantalum capacitor in parallel can be beneficial when driving a low-resistance load. Providing adequate bypass capacitance is essential to achieving very low harmonic and intermodulation distortion. OPERATING VOLTAGE The is specified over a power-supply range of +.7V to +5.5V (±.5V to ±.75V). However, the supply voltage may range from +.5V to +5.5V (±.5V to ±.75V). Supply voltages higher than 7.5V (absolute maximum) can permanently damage the amplifier. Parameters that vary significantly over supply voltage or temperature are shown in the Typical Characteristics section of this data sheet. ENABLE FUNCTION The can be enabled by applying a TTL HIGH voltage level to the Enable pin. Conversely, a TTL LOW voltage level will disable the amplifier, reducing its supply current from 8.mA to only.µa per amplifier. This pin voltage is referenced to single-supply ground. When using a split-supply, such as ±.5V, the enable/disable voltage levels will be referenced to V. Independent Enable pins are available for each channel, providing maximum design flexibility. For portable battery-operated applications, this feature can be used to greatly reduce the average current and thereby extend battery life., 55, 55 SBOS95D

11 The Enable input can be modeled as a CMOS input gate with a kω pull-up resistor to V+. Left open, the Enable pin will assume a logic HIGH, and the amplifier will be on. The Enable time is ns and the disable time is only ns. This allows the to be operated as a gated amplifier, or to have its output multiplexed onto a common output bus. When disabled, the output assumes a high-impedance state. OUTPUT DRIVE The output stage can supply high short-circuit current (typically over ma). Therefore, an on-chip thermal shutdown circuit is provided to protect the from dangerously high junction temperatures. At C, the protection circuit will shut down the amplifier. Normal operation will resume when the junction temperature cools to below C. NOTE: it is not recommended to run a continuous DC current in excess of ±ma. Refer to the Typical Characteristics, Output Voltage Swing vs Output Current. VIDEO The output stage is capable of driving a standard back-terminated 75Ω video cable. By back-terminating a transmission line, it does not exhibit a capacitive load to its driver. A properly back-terminated 75Ω cable does not appear as capacitance; it presents only a 5Ω resistive load to the output. The can be used as an amplifier for RGB graphic signals, which have a voltage of zero at the video black level, by offsetting and AC-coupling the signal, as shown in Figure. WIDEBAND VIDEO MULTIPLEXING One common application for video speed amplifiers which include an enable pin is to wire multiple amplifier outputs together, then select which one of several possible video inputs to source onto a single line. This simple Wired-OR Video Multiplexer can be easily implemented using the OPA57; see Figure. INPUT AND ESD PROTECTION All pins are static protected with internal ESD protection diodes tied to the supplies; see Figure. These diodes will provide overdrive protection if the current is externally limited to ma by the source or by a resistor. Ω +V Red () V+ R Ω / + µf nf µf 75Ω Red 75Ω R Ω Green () V+ R Ω / µf 75Ω Green 75Ω R Ω Blue () V+ R Ω / µf 75Ω Blue 75Ω R NOTE: () Source video signal offset mv above ground to accommodate op amp swing-to-ground capability. FIGURE. RGB Cable Driver., 55, 55 SBOS95D

12 +.5V + µf nf Signal # 9.9Ω A + µf nf.5v kω 9.9Ω V OUT kω +.5V 9.9Ω + µf nf Signal # 9.9Ω B + µf nf.5v kω kω HCO A ON B ON Select FIGURE. Multiplexed Output. +V CC External Pin Internal Circuitry V CC FIGURE. Internal ESD Protection., 55, 55 SBOS95D

17 MECHANICAL DATA MTSSC JANUARY 995 REVISED FEBRUARY 999 PW (R-PDSO-G**) PINS SHOWN PLASTIC SMALL-OUTLINE PACKAGE,,5, M,9 8,5,,,,5 NOM Gage Plane A 7 8,5,75,5, MAX,5,5 Seating Plane, DIM PINS ** 8 8 A MAX, 5, 5,, 7,9 9,8 A MIN,9,9,9, 7,7 9, /F /97 NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Body dimensions do not include mold flash or protrusion not to exceed,5. D. Falls within JEDEC MO-5 POST OFFICE BOX 55 DALLAS, TEXAS 755

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200MHz, CMOS OPERATIONAL AMPLIFIER WITH SHUTDOWN

200MHz, CMOS OPERATIONAL AMPLIFIER WITH SHUTDOWN OPA55 OPA55 OPA55 OPA55 OPA55 OPA55 OPA55 SBOS95B AUGUST MHz, CMOS OPERATIONAL AMPLIFIER WITH SHUTDOWN FEATURES UNITY-GAIN BANDWIDTH: 5MHz WIDE BANDWIDTH: MHz GBW HIGH SLEW RATE: V/µs LOW NOISE: 5.nV/