VCA821ID

Instrumentation, Op Amps, Buffer Amps Overview

The VCA821ID is a single-channel variable gain amplifier from Texas Instruments, housed in a 14-pin SOIC package. It operates on a supply voltage ranging from 7 V to 12 V and functions within a temperature range of -40°C to +85°C. Key electrical specifications include a gain bandwidth product of 320 MHz, a slew rate of 2.5 kV/µs, and a maximum voltage gain of 40 dB. The device exhibits an input offset voltage of 17 mV, an input bias current of 25 µA, and a common-mode rejection ratio of 65 dB. It utilizes BiCOM technology and features an input voltage noise density of 6 nV/√Hz.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Provides linear control of voltage gain via an analog control voltage input.
• Supports wide dynamic range operation with adjustable gain settings up to 40 dB.
• Delivers high-speed signal processing capabilities suitable for demanding RF applications.

Instrumentation, Op Amps, Buffer Amps Applications

• Automatic gain control (AGC) circuits
• Pulse shaping networks
• Variable gain filtering stages

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'ID' confirms the SOIC-14 package and industrial temperature rating (-40°C to +85°C). Ensure the order matches the exact part number to avoid confusion with other VCA82x variants or packaging options like tape-and-reel. Confirm RoHS compliance status through the manufacturer's official documentation prior to procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a single-channel VGA with a 320 MHz bandwidth and 40 dB gain range is required. It is appropriate for designs needing a 7 V to 12 V supply and SOIC-14 footprint. Consider alternative packages if surface area constraints differ or if higher channel counts are needed.

Instrumentation, Op Amps, Buffer Amps Part Context

The VCA821ID belongs to the VCA82x family of wideband variable gain amplifiers designed by Texas Instruments. This series integrates high-performance analog signal processing into a compact form factor. The ID suffix specifically denotes the plastic small-outline integrated circuit package variant within the broader product line.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.