INA823DGKT

Instrumentation, Op Amps, Buffer Amps Overview

The INA823DGKT is a precision, low-power instrumentation amplifier manufactured by Texas Instruments in an 8-pin VSSOP package. It operates on a wide supply range of 2.7 V to 36 V (single) or ±1.35 V to ±18 V (dual). Key electrical specifications include a typical quiescent current of 180 µA, a maximum input offset voltage of 100 µV, and a maximum input bias current of 8 nA. The device offers a gain range from 1 to 10,000 set by a single external resistor, with a bandwidth of 1.9 MHz at unity gain and a common-mode rejection ratio up to 120 dB.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrated input overvoltage protection capable of withstanding voltages up to ±60 V
• Input voltage range extends 150 mV below the negative supply rail
• Stable operation when driving capacitive loads up to 1 nF
• Low power consumption suitable for battery-operated systems

Instrumentation, Op Amps, Buffer Amps Applications

• Flow transmitters
• Wearable fitness and activity monitors
• Infusion pumps
• Blood glucose monitors
• Electrocardiogram (ECG) circuits

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify that the ordering suffix 'DGKT' corresponds to the 8-pin VSSOP package and tape-and-reel shipping configuration. Confirm the specific temperature grade and production revision match the design requirements before finalizing procurement orders.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring high precision with minimal power draw. The wide supply range supports both single-supply and dual-supply architectures. Ensure the external gain-setting resistor tolerance aligns with the required overall system accuracy.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the INA823 family of monolithic precision instrumentation amplifiers. It is designed as a cost-effective solution for signal conditioning tasks where low noise and high common-mode rejection are critical. The device integrates internal gain-setting resistors to simplify circuit design.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitutes within the same family include the INA823D and INA823DR. Other compatible devices may include the INA821 or INA826, though pinout and performance characteristics should be verified against the datasheet.

Instrumentation, Op Amps, Buffer Amps FAQ

How is the gain of the INA823DGKT configured?

The gain is set by a single external resistor connected between pins 1 and 8, allowing for any gain value from 1 to 10,000.

What is the input overvoltage protection limit?

The inputs are protected against overvoltage conditions up to ±60 V relative to the negative supply.