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Contents

README

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OPA4991IPWR

Texas Instruments · Operational Amplifier · TSSOP-14

OPA4991IPWR from Texas Instruments, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUT1 output Output of operational amplifier channel 1; can source or sink ±75 mA with supply voltage range 2.7 V to 40 V.
2 IN1- input Inverting input of operational amplifier channel 1; common-mode input voltage range from (V-) - 0.1 V to (V+) + 0.1 V.
3 IN1+ input Non-inverting input of operational amplifier channel 1; common-mode input voltage range from (V-) - 0.1 V to (V+) + 0.1 V.
4 V+ power_in Positive power supply pin; operating voltage range 2.7 V to 40 V with respect to V- pin.
5 IN2+ input Non-inverting input of operational amplifier channel 2; common-mode input voltage range from (V-) - 0.1 V to (V+) + 0.1 V.
6 IN2- input Inverting input of operational amplifier channel 2; common-mode input voltage range from (V-) - 0.1 V to (V+) + 0.1 V.
7 OUT2 output Output of operational amplifier channel 2; can source or sink ±75 mA with supply voltage range 2.7 V to 40 V.
8 OUT3 output Output of operational amplifier channel 3; can source or sink ±75 mA with supply voltage range 2.7 V to 40 V.
9 IN3- input Inverting input of operational amplifier channel 3; common-mode input voltage range from (V-) - 0.1 V to (V+) + 0.1 V.
10 IN3+ input Non-inverting input of operational amplifier channel 3; common-mode input voltage range from (V-) - 0.1 V to (V+) + 0.1 V.
11 V- power_in Negative power supply return pin; operating voltage range 2.7 V to 40 V with respect to V+ pin.
12 IN4+ input Non-inverting input of operational amplifier channel 4; common-mode input voltage range from (V-) - 0.1 V to (V+) + 0.1 V.
13 IN4- input Inverting input of operational amplifier channel 4; common-mode input voltage range from (V-) - 0.1 V to (V+) + 0.1 V.
14 OUT4 output Output of operational amplifier channel 4; can source or sink ±75 mA with supply voltage range 2.7 V to 40 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: OPA4991IPWR
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: opa4991ipwr-etched.step / opa4991ipwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa4991ipwr.step / opa4991ipwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (87 pp, sha256 d6030f5844d7c1ca, retrieved 2026-09-23, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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