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Contents

README

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OPA1637DGKR

Texas Instruments · Audio Amplifiers · VSSOP-8

OPA1637DGKR from Texas Instruments, in a VSSOP-8. 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 IN- input Inverting amplifier input; input voltage must be within VVS- - 0.5 V to VVS+ + 0.5 V, differential voltage ±0.5 V maximum with IN+, input current ±10 mA maximum.
2 VOCM input Output common-mode voltage control input; voltage range from VVS- + 1 V to VVS+ - 1 V (at ±2.5 V supply) or VVS- + 2 V to VVS+ - 2 V (at ±18 V supply).
3 VS+ power_in Positive power-supply input; supply voltage 3 V to 36 V single-supply or ±1.5 V to ±18 V dual-supply mode.
4 OUT+ output Noninverting amplifier output; output voltage swing limited to within ±100 mV of supply rails at ±2.5 V supply or ±230 mV at ±18 V supply.
5 OUT- output Inverting amplifier output; output voltage swing limited to within ±100 mV of supply rails at ±2.5 V supply or ±230 mV at ±18 V supply.
6 VS- power_in Negative power-supply input; supply voltage ±1.5 V to ±18 V in dual-supply mode.
7 PD input Power-down control input; logic low (< VVS+ - 2.0 V) enables power-down mode with 10 to 20 µA quiescent current, logic high (≥ VVS+ - 0.5 V) enables normal operation; leave floating if not used.
8 IN+ input Noninverting amplifier input; input voltage must be within VVS- - 0.5 V to VVS+ + 0.5 V, differential voltage ±0.5 V maximum with IN-, input current ±10 mA maximum.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VSSOP-8
Category Amplifiers/Comparators
Pins 8

CAD (KiCad official)

  • Symbol: OPA1637DGKR
  • Footprint: Package_SO:VSSOP-8_2.3x2mm_P0.5mm
  • 3D model: VSSOP-8 (KiCad packages3D, STEP)
  • 3D model files: opa1637dgkr-etched.step / opa1637dgkr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa1637dgkr.step / opa1637dgkr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (36 pp, sha256 2805fbc30543a6f6, retrieved 2026-09-24, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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