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Contents

README

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OPA1664AIPWR

Texas Instruments · Audio Amplifiers · TSSOP-14

OPA1664AIPWR from Texas Instruments, in a TSSOP-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 OUT A output Output of amplifier A, which swings within (V-)+0.6 V to (V+)-0.6 V at RL = 2 kΩ and is continuously short-circuit protected (short-circuit current ±50 mA, tied to VS/2).
2 -IN A input Inverting input of amplifier A, with common-mode range (V-)+0.5 V to (V+)-1 V and input current limited to ±10 mA when a signal can forward-bias the input clamp diodes.
3 +IN A input Non-inverting input of amplifier A, with common-mode range (V-)+0.5 V to (V+)-1 V and input current limited to ±10 mA when a signal can forward-bias the input clamp diodes.
4 V+ power_in Positive supply rail; total supply VS = (V+)-(V-) is specified from ±1.5 V to ±18 V or 3 V to 36 V, with an absolute maximum of 40 V.
5 +IN B input Non-inverting input of amplifier B, with common-mode range (V-)+0.5 V to (V+)-1 V and input current limited to ±10 mA when a signal can forward-bias the input clamp diodes.
6 -IN B input Inverting input of amplifier B, with common-mode range (V-)+0.5 V to (V+)-1 V and input current limited to ±10 mA when a signal can forward-bias the input clamp diodes.
7 OUT B output Output of amplifier B, which swings within (V-)+0.6 V to (V+)-0.6 V at RL = 2 kΩ and is continuously short-circuit protected (short-circuit current ±50 mA, tied to VS/2).
8 OUT C output Output of amplifier C, which swings within (V-)+0.6 V to (V+)-0.6 V at RL = 2 kΩ and is continuously short-circuit protected (short-circuit current ±50 mA, tied to VS/2).
9 -IN C input Inverting input of amplifier C, with common-mode range (V-)+0.5 V to (V+)-1 V and input current limited to ±10 mA when a signal can forward-bias the input clamp diodes.
10 +IN C input Non-inverting input of amplifier C, with common-mode range (V-)+0.5 V to (V+)-1 V and input current limited to ±10 mA when a signal can forward-bias the input clamp diodes.
11 V- power_in Negative supply rail, the reference for the common-mode and output swing limits; the total supply VS = (V+)-(V-) is 3 V to 36 V (±1.5 V to ±18 V) with an absolute maximum of 40 V.
12 +IN D input Non-inverting input of amplifier D, with common-mode range (V-)+0.5 V to (V+)-1 V and input current limited to ±10 mA when a signal can forward-bias the input clamp diodes.
13 -IN D input Inverting input of amplifier D, with common-mode range (V-)+0.5 V to (V+)-1 V and input current limited to ±10 mA when a signal can forward-bias the input clamp diodes.
14 OUT D output Output of amplifier D, which swings within (V-)+0.6 V to (V+)-0.6 V at RL = 2 kΩ and is continuously short-circuit protected (short-circuit current ±50 mA, tied to VS/2).

Key specifications

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

CAD (KiCad official)

  • Symbol: OPA1664AIPWR
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: opa1664aipwr-etched.step / opa1664aipwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa1664aipwr.step / opa1664aipwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (40 pp, sha256 5f75876ac956bff7, retrieved 2026-10-08, 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 0.3, 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