OPA843IDBVR

Instrumentation, Op Amps, Buffer Amps Overview

The OPA843IDBVR is a single-channel, wideband, low-distortion, medium-gain voltage-feedback operational amplifier manufactured by Texas Instruments. It operates within a supply voltage range of 4 V to 6 V and draws 20.2 mA of quiescent current. Key electrical specifications include an 800 MHz gain-bandwidth product, a 1 kV/us slew rate, and a typical open-loop voltage gain of 110 dB. The device features a 95 dB common-mode rejection ratio (CMRR) and a 90 dB power supply rejection ratio (PSRR). Input characteristics include a 300 uV input offset voltage, 35 uA input bias current, and 2 nV/sqrt Hz input voltage noise density. It provides 100 mA output current capability and functions reliably across an operating temperature range of -40 C to +85 C in a surface-mount SOT-23-5 package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Wideband performance with 800 MHz gain-bandwidth product for high-frequency signal processing
• Low distortion characteristics suitable for precision analog applications
• Medium gain architecture with 110 dB open-loop voltage gain
• Voltage-feedback topology ensuring stable operation with capacitive loads

Instrumentation, Op Amps, Buffer Amps Applications

• Video buffering and distribution systems
• High-speed data acquisition front-ends
• RF intermediate frequency amplification stages
• Test and measurement instrumentation circuits

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix IDBVR confirms the SOT-23-5 package and industrial temperature grade (-40 C to +85 C). Confirm moisture sensitivity levels and reflow soldering profiles align with assembly requirements. Ensure the ordering part number matches the exact pinout and electrical specifications required for the design. Cross-reference datasheet revisions to confirm parameter consistency.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a wide bandwidth and low distortion are required in a compact surface-mount footprint. The OPA843IDBVR offers higher gain than unity-gain stable variants but requires careful feedback network design. Compare against OPA842 or OPA846 if different gain-bandwidth trade-offs or noise specifications are needed. Ensure the 4 V minimum supply voltage meets system power constraints.

Instrumentation, Op Amps, Buffer Amps Part Context

The OPA843IDBVR belongs to the OPA843 family of wideband operational amplifiers from Texas Instruments. This series is designed for applications requiring high speed and low distortion in small packages. The IDBVR variant specifically denotes the industry-standard SOT-23-5 surface-mount package, offering space-efficient integration compared to larger SOIC or DIP options.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

OPA843IDBVT: Identical electrical specifications and functionality, differing only in tape-and-reel packaging format instead of cut-tape or mouse reel.