OPA994QDBVRQ1

Instrumentation, Op Amps, Buffer Amps Overview

The OPA994QDBVRQ1 is a single-channel, automotive-grade operational amplifier from the OPAx994-Q1 family. It features a wide supply voltage range of 2.7V to 32V and rail-to-rail input/output capabilities. Key electrical parameters include a gain-bandwidth product of 24MHz, a slew rate of 35V/µs, and an output current capability of ±125mA. The device offers low offset voltage (±350µV typical) and high common-mode rejection (125dB). It supports unlimited capacitive load drive and operates within a temperature range of -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Unlimited capacitive load drive capability with compensation architecture to mitigate sustained ringing
• High short-circuit output current providing robust performance under fault conditions
• Rail-to-rail input and output stages ensuring maximum dynamic signal swing
• Low offset voltage and drift characteristics for high DC precision

Instrumentation, Op Amps, Buffer Amps Applications

• HEV/EV inverter and motor control systems
• On-board charger (OBC) and wireless charger circuits
• AC charging station infrastructure
• GFCI fault detection and test applications
• High-side and low-side current sensing

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the component matches the specific Texas Instruments part number OPA994QDBVRQ1. Confirm the package type is SOT-23-5 (DBV) and that it meets AEC-Q100 Grade 1 requirements. Ensure the datasheet revision aligns with the latest production data. Check for any specific ordering suffixes if required by the design.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this device for high-voltage automotive applications requiring significant output current and stability with large capacitive loads. It is suitable where rail-to-rail operation and high bandwidth are necessary. Consider the quiescent current of 1.35mA per amplifier when evaluating power constraints. Verify thermal management needs based on the junction-to-ambient resistance.

Instrumentation, Op Amps, Buffer Amps Part Context

This component belongs to the OPAx994-Q1 family, which includes single-channel (OPA994-Q1) and dual-channel (OPA2994-Q1) variants. The family is designed for high-voltage general-purpose applications in automotive environments. The OPA994QDBVRQ1 specifically utilizes the DBV (SOT-23, 5) package, offering a compact footprint for space-constrained designs.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public confirmed substitute part numbers: None identified.