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Contents

README

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VCA822IDR

Texas Instruments · Programmable / Variable Gain Amplifiers (PGA/VGA) · SOIC-14

VCA822IDR from Texas Instruments, in a SOIC-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 +VCC power_in Positive supply pin; the datasheet gives an absolute maximum power supply of ±6.5 V and a recommended operating voltage of 7 V to 12 V (10 V nominal).
2 VG input Gain control input; the gain follows the control voltage linearly in V/V as it varies from +1 V to −1 V, giving a gain of 10 V/V at +1 V and 0.1 V/V at −1 V for a +10 V/V maximum gain.
3 +VIN input Noninverting signal input of the differential-input, single-ended-output variable gain amplifier.
4 +RG input Gain-set resistor connection; the maximum gain equals 2 × (RF / RG), and the maximum gain is intended to be set between +2 V/V and +100 V/V.
5 -RG input Gain-set resistor connection; the maximum gain equals 2 × (RF / RG), and the maximum gain is intended to be set between +2 V/V and +100 V/V.
6 -VIN input Inverting signal input of the differential-input, single-ended-output variable gain amplifier; the input voltage must not exceed ±VS.
7 -VCC power_in Negative supply pin; the datasheet gives an absolute maximum power supply of ±6.5 V and a recommended operating voltage of 7 V to 12 V (10 V nominal).
8 -VCC power_in Negative supply pin; the datasheet gives an absolute maximum power supply of ±6.5 V and a recommended operating voltage of 7 V to 12 V (10 V nominal).
9 VREF power_in Output voltage reference input (listed for the SOIC-14 package only).
10 VOUT output Amplifier output of the feedback amplifier stage, which provides ±160 mA high output current.
11 GND power_in Ground reference pin.
12 FB input Feedback resistor input (RF connection) that sets the maximum gain together with the gain-set resistor RG.
13 NC unconnected No connect pin; leave unconnected.
14 +VCC power_in Positive supply pin; the datasheet gives an absolute maximum power supply of ±6.5 V and a recommended operating voltage of 7 V to 12 V (10 V nominal).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-14
Category Amplifiers/Comparators
Pins 14

CAD (KiCad official)

  • Symbol: VCA822IDR
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: vca822idr-etched.step / vca822idr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); vca822idr.step / vca822idr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (50 pp, sha256 e365bda82e4c68d9, retrieved 2026-10-07, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF