Analog Multiplexer Demultiplexer

Transcription

1 Analog Multiplexer Demultiplexer High-Performance Silicon-Gate CMOS The SL74HC4051 utilize silicon-gate CMOS technology to achieve fast propagation delays, low ON resistances, and low OFF leakage currents. These analog multiplexers/demultiplexers control analog voltages that may vary across the complete power supply range (from V CC to V EE ). The Channel-Select inputs determine which one of the Analog Inputs/Outputs is to be connected, by mea of an analog switch, to the Common Output/Input.When the Enable pin is high, all analog switches are turned off. The Channel-Select and Enable inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. Fast Switching and Propagation Speeds Low Crosstalk Between Switches Diode Protection on All Inputs/Outputs Analog Power Supply Range (V CC -V EE )= to 1 V Digital (Control) Power Supply Range (V CC -GND)= to V Low Noise ORDERING INFORMATION SL74HC4051N Plastic SL74HC4051D SOIC T A = -55 to 125 C for all packages PIN ASSIGNMENT LOGIC DIAGRAM Single-Pole, 8-Position Plus Common Off FUNCTION TABLE PIN 16 =V CC PIN 7 = V EE PIN 8 = GND Control Inputs ON Enable Select Channels C B A L L L L X0 L L L H X1 L L H L X2 L L H H X3 L H L L X4 L H L H X5 L H H L X6 L H H H X7 H X X X None X = don t care

2 MAXIMUM RATINGS * Symbol Parameter Value Unit V CC Positive DC Supply Voltage (Referenced to GND) (Referenced to V EE ) -0.5 to to V EE Negative DC Supply Voltage (Referenced to GND) -7.0 to +0.5 V V IS Analog Input Voltage V EE to V CC +0.5 V V IN Digital Input Voltage (Referenced to GND) -1.5 to V CC +1.5 V I DC Input Current Into or Out of Any Pin ±25 ma P D Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Tstg Storage Temperature -65 to +150 C T L Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package) * Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditio. +Derating - Plastic DIP: - 10 mw/ C from 65 to 125 C SOIC Package: : - 7 mw/ C from 65 to 125 C V mw 260 C RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min Max Unit V CC Positive Supply Voltage (Referenced to GND) (Referenced to V EE ) V EE Negative DC Supply Voltage (Referenced to GND) - GND V V IS Analog Input Voltage V EE V CC V V IN Digital Input Voltage (Referenced to GND) GND V CC V V IO * 1 Static or Dynamic Voltage Across Switch V T A Operating Temperature, All Package Types C t r, t f Input Rise and Fall Time (Channel Select or Enable Inputs) V CC = V V CC = V V CC = V * For voltage drops across the switch greater than 1.2 V (switch on), excessive V CC current may be drawn; i. e., the current out of the switch may contain both V CC and switch input components. The reliability of the device will be unaffected unless the Maximum Ratings are exceeded V This device contai protection circuitry to guard agait damage due to high static voltages or electric fields. However, precautio must be taken to avoid applicatio of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, V IN and V OUT should be cotrained to the range indicated in the Recommended Operating Conditio.. Unused digital input pi must always be tied to an appropriate logic voltage level (e.g., either GND or V CC ). Unused Analog I/O pi may be left open or terminated.

3 DC ELECTRICAL CHARACTERISTICS Digital Section (Voltages Referenced to GND) V EE =GND, Except Where Noted Symbol Parameter Test Conditio V 25 C to -55 C V IH V IL I IN I CC Minimum High-Level Input Voltage, Channel- Select or Enable Inputs Maximum Low -Level Input Voltage, Channel- Select or Enable Inputs Maximum Input Leakage Current, Channel-Select or Enable Inputs Maximum Quiescent Supply Current (per Package) V CC R ON = Per Spec R ON = Per Spec V IN =V CC or GND, V EE =- V Channel Select = V CC or GND Enable = V CC or GND V IS = V CC or GND V IO = 0 V V EE = GND V EE = - DC ELECTRICAL CHARACTERISTICS Analog Section Guaranteed Limit 85 C C Unit ±0.1 ±1.0 ±1.0 µa V CC V EE Guaranteed Limit Symbol Parameter Test Conditio V V 25 C to -55 C R ON Maximum ON Resistance V IS = V CC or V EE I S ma(figure 1) R ON I OFF I ON Maximum Difference in ON Resistance Between Any Two Channels in the Same Package Maximum Off- Channel Leakage Current, Any One Channel Maximum Off- Channel Leakage Current, Common Channel Maximum On- Channel Leakage Current, Channel to Channel V IS = V CC or V EE (Endpoints) I S ma(figure 1) V IS = 1/2 (V CC - V EE ) I S ma V IO = V CC - V EE Switch Off (Figure 2) V IO = V CC - V EE Switch Off (Figure 3) Switch to Switch = V CC - V EE (Figure 4) C C V V µa Unit µa µa Ω Ω

4 AC ELECTRICAL CHARACTERISTICS(C L =50pF,Input t r =t f = ) Symbol Parameter V 25 C to -55 C t PLH, t PHL t PLH, t PHL t PLZ, t PHZ t PZL, t PZH C IN C I/O Maximum Propagation Delay, Channel-Select to Analog Output (Figures 8 and 9) Maximum Propagation Delay, Analog Input to Analog Output (Figures 10 and 11) Maximum Propagation Delay, Enable to Analog Output (Figures 12 and 13) Maximum Propagation Delay, Enable to Analog Output (Figures 12 and 13) Maximum Input Capacitance, Channel-Select or Enable Inputs Maximum Capacitance Analog I/O All Switches Off V CC Guaranteed Limit 85 C 125 C Unit pf pf Common O/I Feedthrough C PD Power Dissipation Capacitance (Per Package) (Figure 14) Used to determine the no-load dynamic power coumption: P D =C PD V CC 2 f+i CC V CC C,V CC =5.0 V, V EE =0 V 45 pf

5 ADDITIONAL APPLICATION CHARACTERISTICS (GND = 0.0 V) V CC V EE Limit * Symbol Parameter Test Conditio V V 25 C Unit BW Maximum On- Channel Bandwidth or Minimum Frequency Respoe (Figure 5) - Off-Channel Feedthrough Isolation (Figure 6) - Feedthrough Noise, Channel Select Input to Common O/I (Figure 7) THD Total Harmonic Distortion (Figure 15) f in =1 MHz Sine Wave Adjust f in Voltage to Obtain 0 dbm at V OS Increase f in Frequence Until db Meter Reads -3 db R L =50 Ω, C L =10 pf f in = Sine Wave Adjust f in Voltage to Obtain 0 dbm at V IS f in = 10 khz, R L =600 Ω, C L =50 pf f in = 1.0 MHz, R L =50 Ω, C L =10 pf V IN 1 Mhz Square Wave (t r = t f = 6 ) Adjust R L at Setup so that I S = 0 A Enable = GND R L =600 Ω, C L =50 pf R L =10 Ω, C L =10 pf f in = 1 khz, R L =10 kω, C L =50 pf THD = THD Measured - THD Source V IS =4.0 V PP sine wave V IS =8.0 V PP sine wave V IS =11.0 V PP sine wave MHz db mv PP % * Limits not tested. Determined by design and verified by qualification.

6 Figure 1. On Resistance Test Set-Up

7 Figure 2. Maximum Off Channel Leakage Current, Any One Channel, Test Set-U P Figure 3. Maximum Off Channel Leakage Current, Common Channel, Test Set-U P Figure 4. Maximum On Channel Leakage Current, Channel to Channel, Test Set-U P Figure 5. Maximum On Channel Bandwidth, Test Set-U P Figure 6. Off Channel Feedthrough Isolation, Test Set-U P Figure 7.Feedthrough Noise, Channel Select to Common Out, Test Set-U P

8 Figure 8. Switching Weveforms Figure 9. Test Set-U P, Channel Select to Analog Out Figure 10. Switching Weveforms Figure 11. Test Set-U P, Analog In to Analog Out Figure 12. Switching Weveforms Figure 13. Test Set-U P, Enable to Analog Out

9 Figure 14. Power Dissipation Capacitance, Test Set-Up * Includes all probe and jig capacitance Figure 15. Total Harmonic Distortion, Test Set-U P EXPANDED LOGIC DIAGRAM