INA351AIDSGR

Instrumentation, Op Amps, Buffer Amps Overview

The INA351AIDSGR is a low-power instrumentation amplifier from Texas Instruments featuring a fixed gain of 10 V/V and a configurable reference amplifier. It operates on a supply voltage range of 1.8 V to 5.5 V with a typical quiescent current of 110 µA. The device provides a bandwidth of 100 kHz, a typical CMRR of 95 dB, and a maximum gain error of 0.1%. It is housed in an 8-pin WSON package measuring 2 mm by 2 mm.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Fixed gain of 10 V/V achieved through precision-matched internal resistors
• Configurable reference amplifier for external DC error calibration or buffered voltage output
• Ultra-small 2 mm x 2 mm WSON package option
• Optimized low power consumption suitable for battery-powered applications

Instrumentation, Op Amps, Buffer Amps Applications

• Electrocardiogram (ECG)
• Pressure transmitter
• Weigh scale
• Flow transmitter
• Blood glucose monitor

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix IDSGR corresponds to the WSON-8 package and tape-and-reel shipping configuration. Confirm that the 'A' grade designation meets the required offset voltage and gain error specifications for your application. Ensure the ordering quantity aligns with standard reel sizes if bulk procurement is intended.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a fixed gain of 10 is required without external resistor networks. The integrated reference amplifier allows for servo-loop calibration to improve DC precision. It is optimized for driving sub-1 kHz delta-sigma ADCs directly, making it suitable for portable medical devices where size and power are critical constraints.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the INA351 family of low-power instrumentation amplifiers. The INA351 series offers various gain options and package configurations. The INA351A specifically denotes the version with a fixed gain of 10 V/V. The DSG suffix indicates the 8-lead WSON package type.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

INA351CDSIDDFR: Different gain setting. INA351ABSIDDFR: Different gain setting.