INA500CIDBVR

Instrumentation, Op Amps, Buffer Amps Overview

The INA500CIDBVR is a low-power difference amplifier from Texas Instruments, operating on a single supply of 1.7V to 5.5V or dual supplies up to ±2.75V. It features an ultra-high input impedance exceeding 1MΩ and a typical quiescent current of 14µA at 5.5V. The device offers three fixed gain options (G=1, 0.5, 0.25) with a typical bandwidth of 125kHz to 160kHz depending on the gain setting. It provides high precision for 8-bit to 12-bit systems, characterized by a typical CMRR of 85dB to 89dB and a maximum offset voltage of 3.5mV. Packaged in a compact SOT-23-6 (DBV) format.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-high input impedance exceeding 1MΩ minimizes signal loading effects.
• Integrated precision matched resistors eliminate the need for external discrete components.
• Low power consumption with a quiescent current as low as 13.5µA.
• Space-saving 6-pin SOT-23 package design.

Instrumentation, Op Amps, Buffer Amps Applications

• Level translation circuits
• Battery monitoring systems
• Signal conditioning for analog-to-digital converters

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'C' indicates the correct gain configuration required for the application, as the INA500 family includes variants with different fixed gains. Confirm that the SOT-23-6 (DBV) package meets the spatial constraints of the target PCB layout. Ensure the selected variant aligns with the necessary common-mode voltage range and precision specifications for the intended measurement accuracy.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when board space is limited and external resistor matching is undesirable. The fixed-gain architecture simplifies design but requires choosing the correct variant based on the desired attenuation factor. Consider the trade-off between the higher input impedance and the specific gain error tolerances associated with each gain option to ensure compatibility with downstream ADC requirements.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the INA500 series of cost-optimized difference amplifiers. It serves as a direct replacement for discrete difference amplifier implementations built with commodity operational amplifiers and precision resistors. The series is designed to reduce bill-of-materials costs while maintaining sufficient performance for medium-resolution data acquisition applications.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

INA500AIDBVR

Instrumentation, Op Amps, Buffer Amps FAQ

What determines the gain of the INA500CIDBVR?

The gain is determined by the device version suffix; the 'C' variant corresponds to a fixed gain of 0.25 V/V.

Can the INA500 handle high common-mode voltages?

Yes, it can handle input common-mode voltages up to 27.5V in the G=0.25 configuration with a 5.5V supply.