OPA37GU from Texas Instruments, in a SOIC-8. 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	Offset Trim	passive	Offset voltage trim pin. Connect to pin 8 through a 10kΩ potentiometer (1kΩ to 1MΩ range) with wiper to +VCC for ±4mV typical offset null. Leave open if trim is not required.
2	-In	input	Inverting input of the op-amp. Common-mode input range ±11V (±12.3V typ) at ±15V supplies. Input bias current ±15nA typ, protected by back-to-back diodes (limit differential input current to ±25mA if VDIFF exceeds ±0.7V).
3	+In	input	Non-inverting input of the op-amp. Common-mode input range ±11V (±12.3V typ) at ±15V supplies. Input bias current ±15nA typ, protected by back-to-back diodes.
4	-VCC	power_in	Negative supply rail. Rated ±15V, operating range ±4V to ±22V (absolute max ±22V). Quiescent current 3.3mA typ (5.7mA max) at IO = 0mA.
5	NC	unconnected	No internal connection. May be left floating or tied to a DC potential; no functional effect on the amplifier.
6	Output	output	Amplifier output. Voltage swing ±12V min (±13.8V typ) into RL ≥ 2kΩ; short-circuit protected with 25mA (60mA max) short-circuit current. Open-loop output resistance 70Ω.
7	+VCC	power_in	Positive supply rail. Rated ±15V, operating range ±4V to ±22V (absolute max ±22V). Bypass with a local decoupling capacitor to ground.
8	Offset Trim	passive	Offset voltage trim pin. Connect to pin 1 through a 10kΩ potentiometer with wiper to +VCC. Nulling large system offsets via this pin degrades drift by ~3.3µV/°C per mV of trim.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-8
Category	Amplifiers/Comparators
Pins	8

Ordering variants

Same part, different packaging or reel option.

OPA37GU
OPA37GU.B
OPA37GU/2K5
OPA37GU/2K5.B
OPA37GP
OPA37GP.A
OPA37GPG4

CAD (KiCad official)

Symbol: OPA37GU
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (None pp, sha256 a7ea3476fdb58052, 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