INA818IDR

Instrumentation, Op Amps, Buffer Amps Overview

The INA818IDR is a low-power precision instrumentation amplifier manufactured by Texas Instruments. It features a supply current of 350 µA and supports a wide voltage span from 4.5 V to 36 V. The device offers a gain bandwidth product of 2 MHz, a slew rate of 0.9 V/µs, and an input bias current of 150 pA. Input offset voltage is specified at 10 µV, with an output drive capability of 20 mA. It operates within a temperature range of -40°C to 125°C and is housed in an 8-SOIC package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Low power consumption with 350 µA supply current
• High precision with 10 µV input offset voltage
• Wide single-supply operation up to 36 V
• Rail-to-rail output capability

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered sensor signal conditioning
• Medical instrumentation front-ends
• Industrial process control systems
• Strain gauge and bridge measurements

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix ID against the datasheet to confirm the SOIC-8 package and tape-and-reel or tube packaging options. Ensure the operating environment remains within the specified -40°C to 125°C range for guaranteed performance. Confirm that the application voltage does not exceed the 36 V maximum rating to prevent device damage.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when low quiescent current is critical alongside high DC accuracy. The 2 MHz bandwidth suits applications requiring moderate speed without excessive power draw. Compare against higher-speed amplifiers if dynamic response requirements exceed the 0.9 V/µs slew rate specification.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the INA818 family of precision instrumentation amplifiers. It is designed for applications demanding high common-mode rejection and low drift. The device integrates three matched precision resistors internally, eliminating external resistor matching requirements typically needed in discrete designs.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Check for direct pin-compatible alternatives such as the INA826 or INA827 series if different gain settings or slightly varied power specifications are required. Verify that any substitute maintains the 8-SOIC footprint and similar electrical characteristics.