A dual FET-input operational amplifier built for high-fidelity audio, in SOIC-8, from the Burr-Brown line. It reaches extremely low total harmonic distortion (0.00008%) with low noise and a fast 20 V/us slew rate, and the FET input keeps bias current tiny so it drives high-impedance sources cleanly. That makes it a favorite for preamps, active crossovers, DAC output stages, and headphone drivers where the LM358 or TL072 are not clean enough. Two independent amplifiers share the supply, which runs from split rails up to plus/minus 18 V.

Pinout

Pin	Name	Type	Function
1	OUT A	output	Output of channel A op-amp. Drives external loads with rail-to-rail-1V swing; short-circuit protected (continuous).
2	-IN A	input	Inverting input of channel A op-amp. True FET input with IB = 5pA typ. Input voltage must remain within (V-) - 0.5V to (V+) + 0.5V.
3	+IN A	input	Noninverting input of channel A op-amp. True FET input with IB = 5pA typ. Input voltage must remain within (V-) - 0.5V to (V+) + 0.5V.
4	V-	power_in	Negative (lowest) power supply. Dual-supply range ±2.5V to ±18V; single-supply range 5V to 36V. Total (V+) - (V-) must not exceed 36V.
5	+IN B	input	Noninverting input of channel B op-amp. True FET input with IB = 5pA typ. Input voltage must remain within (V-) - 0.5V to (V+) + 0.5V.
6	-IN B	input	Inverting input of channel B op-amp. True FET input with IB = 5pA typ. Input voltage must remain within (V-) - 0.5V to (V+) + 0.5V.
7	OUT B	output	Output of channel B op-amp. Drives external loads with rail-to-rail-1V swing; short-circuit protected (continuous).
8	V+	power_in	Positive (highest) power supply. Dual-supply range ±2.5V to ±18V; single-supply range 5V to 36V. Total (V+) - (V-) must not exceed 36V.

Key specifications

Parameter	Value
Type	Dual FET-input audio op-amp
THD+N	0.00008% (at 1 kHz)
Gain-bandwidth	8 MHz
Slew rate	20 V/µs
Input noise	8 nV/√Hz
Supply voltage	±2.5 to ±18 V
Channels	2 independent
Package	SOIC-8

Ordering variants

Same part, different packaging or reel option.

OPA2134UA (SOIC-8)
OPA2134PA (PDIP-8)

CAD (KiCad official)

Symbol: Amplifier_Operational:OPA2134
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D)

Provenance

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

Datasheet: Texas Instruments datasheet (35 pp, sha256 e76945036736f51d, retrieved 2026-08-17, tier: manufacturer)
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