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INA327EA

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Texas Instruments Instrumentation Amplifiers, MSOP-10. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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INA327EA

Texas Instruments · Instrumentation Amplifiers · MSOP-10

INA327EA from Texas Instruments, in a MSOP-10. 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 R1 passive Gain-setting resistor R1 terminal (one end of R1). Together with the R1 pin on pin 10 and R2 pins (7 and 8), sets differential gain per G = 2(R2/R1).
2 VIN- input Inverting analog input. Rail-to-rail input common-mode range from (V-) - 0.02V to (V+) + 0.1V; safe input range (V-) - 0.5V to (V+) + 0.5V (input current limited to ±10mA).
3 VIN+ input Non-inverting analog input. Rail-to-rail input common-mode range from (V-) - 0.02V to (V+) + 0.1V; safe input range (V-) - 0.5V to (V+) + 0.5V (input current limited to ±10mA).
4 V- power_in Negative supply rail. For single-supply operation tie to GND; supply range is single +2.7V to +5.5V (V+ to V-).
5 NC/V+ passive No internal connection. Datasheet instructs to connect this pin to V+ (pin 9).
6 Enable input Shutdown / enable control input. Logic high (>=1.6V) enables the amplifier; logic low (<=0.25V) disables it. Enable time ~75µs typ, disable time ~100µs typ, shutdown current 2µA typ (5µA max) at V_S = +5V.
7 R2 passive Gain-setting resistor R2 terminal. Paired with the R2 pin (implied by R2 network to VO) to set the R2 leg of the gain equation G = 2(R2/R1).
8 VO output Amplifier output. Rail-to-rail output swing (within 10mV of rails typ at RL=100kΩ). Short-circuit current ±25mA typ; capacitive load drive 500pF typ.
9 V+ power_in Positive supply rail. Single-supply range +2.7V to +5.5V; quiescent current 2.4mA typ (3.4mA max) at V_S = +5V.
10 R1 passive Gain-setting resistor R1 terminal (opposite end of R1 from pin 1). External R1 connected between pins 1 and 10 forms the R1 leg of gain equation G = 2(R2/R1).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package MSOP-10
Category Amplifiers/Comparators
Pins 10

Ordering variants

Same part, different packaging or reel option.

  • INA327EA/250
  • INA327EA/2K5
  • INA326EA/250
  • INA326EA/2K5

CAD (KiCad official)

  • Symbol: INA327EA
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: MSOP-10 (KiCad packages3D, STEP)
  • 3D model files: ina327ea-etched.step / ina327ea-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina327ea.step / ina327ea.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (28 pp, sha256 e518121aea73da7e, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF