AD623 Single-Supply Rail-to-Rail Instrumentation Amplifier DIP-8

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  • Jameco Part no.: 1780985
  • Manufacturer: Analog Devices
  • Manufacturer no.: AD623ANZ
  • Web Exclusive
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AD623 Single-Supply Rail-to-Rail Instrumentation Amplifier

The AD623 is an integrated single-supply instrumentation amplifier that delivers rail-to-rail output swing on a 3V to 12V supply. The AD623 offers superior user flexibility by allowing single gain set resistor programming and by conforming to the 8-lead industry standard pinout configuration. With no external resistor, the AD623 is configured for unity gain (G=1), and with an external resistor, the AD623 can be programmed for gains up to 1000.

The AD623 holds errors to a minimum by providing superior AC CMRR that increases with increasing gain. Line noise, as well as line harmonics, are rejected because the CMRR remains constant up to 200 Hz. The AD623 has a wide input common-mode range and can amplify signals that have a common-mode voltage 150 mV below ground. Although the design of the AD623 was optimized to operate from a single supply, the AD623 still provides superior performance when operated from a dual voltage supply (±2.5 V to ±6.0 V).


Easy to use
Higher performance than discrete design
Low power, 550µA max supply current


Low power medical instrumentation
Transducer interfaces
Thermocouple amplifiers
Industrial process controls
Difference amplifiers
Low power data acquisition

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Specification Value
TypeInstrumentation Amplifier
Output TypeRail to Rail
Number of Channels per Chip1
Number of Elements per Chip1
Power Supply TypeSingle|Dual
Minimum Single Supply Voltage2.7V
Typical Single Supply Voltage3V|5V|9V
Maximum Single Supply Voltage12V
Minimum Dual Supply Voltage±2.5V
Typical Dual Supply Voltage±3V|±5V
Maximum Dual Supply Voltage±6V
Maximum Input Bias Current[email protected]
Maximum Input Offset Voltage[email protected]
Maximum Power Dissipation650mW
Minimum CMRR70dB
Minimum PSRR80dB
Rail to RailRail to Rail Output
Maximum Input Resistance2000MOhm(Typ)@5V
Maximum Operating Supply Voltage±6V|12V
Minimum Operating Temperature-40°C
Maximum Operating Temperature85°C
MountingThrough Hole
Supplier PackagePDIP
Product Width7.24mm
Product Height3.43mm
Product Length9.27mm
Product TypeSP Amplifier

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