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)

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