INA500BIDCKR

Instrumentation, Op Amps, Buffer Amps Overview

The INA500BIDCKR is a low-power difference amplifier from Texas Instruments, housed in a SC-70-6 package. It operates on a supply voltage ranging from 1.7V to 5.5V and draws a quiescent current of approximately 19µA at maximum voltage. The device features an ultra-high input impedance exceeding 1MΩ and offers a fixed gain of 0.5. Key electrical specifications include a bandwidth of 135kHz, a slew rate of 0.18V/µs, and a common-mode rejection ratio (CMRR) of 77dB minimum. It provides a short-circuit current capability of ±35mA and maintains operation across a temperature range of -40°C to +125°C.

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 quiescent current around 19µA supports battery-powered designs
• Space-saving SC-70-6 package facilitates compact board layouts

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 ordering suffix 'DCK' corresponds to the SC-70-6 package variant when sourcing. Confirm that the 'B' grade designation aligns with the required performance parameters, specifically the 0.5 gain configuration and associated offset and CMRR tolerances. Ensure compatibility with the intended operating temperature range and supply voltage constraints before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a fixed gain of 0.5 is required alongside high input impedance to prevent circuit loading. The B-grade version is suitable for applications needing guaranteed minimum CMRR of 77dB and specific gain error limits. Consider the SC-70-6 footprint if space is constrained, noting it shares pinouts with other package options within the same family.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the INA500 series of cost and size optimized difference amplifiers. The series includes variants with different gains (G=1, G=0.5, G=0.25) and grades (A, B, C). The INA500BIDCKR specifically denotes the B-grade version with a gain of 0.5, packaged in the SC-70-6 format, designed to replace discrete resistor networks while maintaining precision for 8-bit to 12-bit systems.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct functional replacements within the same family include the INA500ADCKR (Gain 1) or INA500CDCKR (Gain 0.25), provided the gain requirement is adjusted. For identical gain but different packaging, the INA500BIDBVR (SOT-23-6) is available. Verify thermal characteristics and pinout compatibility when substituting packages.