OPA310QDCKRQ1

Instrumentation, Op Amps, Buffer Amps Overview

The OPA310QDCKRQ1 is an automotive-grade, single-channel operational amplifier from Texas Instruments. It operates within a supply voltage range of 1.5 V to 5.5 V and features a gain-bandwidth product of 3 MHz with a slew rate of 3 V/µs. Key electrical parameters include an input offset voltage of 1.4 mV, input bias current of 30 pA, and input noise density of 32 nV/√Hz. The device supports rail-to-rail input and output, offers a common-mode rejection ratio of 95 dB, and consumes 165 µA of quiescent current per channel. It is housed in a SC-70-3 package and functions reliably across temperatures from -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
• Rail-to-rail input and output capability ensures maximum dynamic signal swing near supply rails.
• Integrated shutdown mode reduces power consumption when the amplifier is not in use.

Instrumentation, Op Amps, Buffer Amps Applications

• Sensor signal conditioning in automotive systems
• Battery management system monitoring circuits
• Audio pre-amplification stages

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'DCKR' corresponds to the SC-70-3 package and tape-and-reel quantity as defined in the official datasheet. Confirm that the Q1 designation meets the required AEC-Q100 grade for your target application. Ensure compatibility with your PCB footprint for the SC-70-3 form factor. Cross-reference the manufacturer part number directly with Texas Instruments documentation to avoid counterfeit components.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a single-channel, low-voltage op amp with automotive certification is required. It is suitable for applications needing rail-to-rail performance and moderate bandwidth up to 3 MHz. Consider the SC-70-3 package size constraints and the 165 µA quiescent current draw against system power budgets. Verify that the 1.4 mV offset voltage meets the precision requirements of the signal chain.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the OPA310-Q1 family of zero-drift, auto-stabilized operational amplifiers designed for automotive use. It shares architectural similarities with other members of the series but differs in channel count and packaging options such as SOT-23-6 or SC-70-5 variants found in related models like the TLV9061 or TLV9151.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitutes within the same family include OPA310QDBVRQ1 (SOT-23-6 package). Other automotive rail-to-rail amplifiers may require verification of pinout compatibility and electrical parameter alignment.