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OPA1641AIDR

Public Made by Adom

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Texas Instruments Audio Power OpAmps, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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OPA1641AIDR

Texas Instruments · Audio Power OpAmps · SOIC-8

OPA1641AIDR from Texas Instruments, in a SOIC-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 NC unconnected No internal connection.
2 -IN input Inverting input of the op amp.
3 +IN input Noninverting input of the op amp.
4 V- power_in Negative (lowest) power supply; dual supply range is ±2.25 V to ±18 V (single supply 4.5 V to 36 V).
5 NC unconnected No internal connection.
6 OUT output Op amp output with rail-to-rail swing.
7 V+ power_in Positive (highest) power supply; dual supply range is ±2.25 V to ±18 V (single supply 4.5 V to 36 V).
8 NC unconnected No internal connection.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Operational Amplifier/Comparator
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VS 40 V 6
Input current IIN -10 10 mA 6
Operating temperature TA -55 125 °C 6
Junction temperature TJ -65 150 °C 6
Storage temperature Tstg -65 150 °C 6
Supply voltage, single supply VS 4.5 36 V Single supply 6
Supply voltage, dual supply VS -2.25 18 V Dual supply, ±2.25 to ±18 6
Specified temperature -40 85 °C 6
Junction-to-ambient thermal resistance RθJA 160 °C/W D (SOIC) 8 pins 6
Junction-to-case (top) thermal resistance RθJC(top) 75 °C/W D (SOIC) 8 pins 6
Junction-to-board thermal resistance RθJB 60 °C/W D (SOIC) 8 pins 6
Input offset voltage VOS 1 3.5 mV VS = ±18 V 7
VOS vs power supply PSRR 0.14 2 μV/V VS = ±2.25 V to ±18 V 7
Input bias current IB -20 2 20 pA VCM = 0 V 7
Input offset current IOS -20 2 20 pA VCM = 0 V 7
Common-mode rejection ratio CMRR 120 126 dB VCM = (V-), 0.1 V to (V+), 3.5 V, VS = ±18 V 7
Open-loop voltage gain AOL 120 134 dB (V-) + 0.2 V ≤ VO ≤ (V+), 0.2 V, RL = 10 kΩ 7
Open-loop voltage gain AOL 114 126 dB (V-) + 0.35 V ≤ VO ≤ (V+), 0.35 V, RL = 2 kΩ 7
Quiescent current (per amplifier) IQ 1.8 2.3 mA IOUT = 0 A 8
Short-circuit current, source ISC 36 mA Source 8
Short-circuit current, sink ISC -30 mA Sink 8
Gain-bandwidth product GBW 11 MHz G = 1 7
Slew rate SR 20 V/μs G = 1 7

CAD (KiCad official)

  • Symbol: OPA1641AIDR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: opa1641aidr-etched.step / opa1641aidr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa1641aidr.step / opa1641aidr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (46 pp, sha256 e584b8810f90b5dd, retrieved 2026-10-22, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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