Build with OPA134 — Datasheet Specs & AI Design Help

00 — Overview

What the OPA134 does

The OPA134, OPA2134, and OPA4134 (OPAx134) are high-performance, low-noise operational amplifiers fully specified for audio applications. These true FET-input devices offer ultra-low distortion of 0.00008%, 8nV/√Hz noise, 20V/µs slew rate, and 8MHz bandwidth. They operate from a wide supply range of ±2.5V to ±18V and feature high open-loop gain of 120dB. The series includes single, dual, and quad versions available in various packages. Engineers typically use them in professional audio circuits, line drivers, preamplifiers, active filters, and crossover networks. The independent circuitry in dual and quad versions ensures freedom from interaction even when overloaded.

Next step

Start building with OPA134 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.

01 — Key specifications

Datasheet parameters

Datasheet parameters for OPA134
Parameter	Min	Typ	Max	Conditions	Source
quiescent current	4 mA	—	5 mA	IO = 0mA; iq(per amplifier); POWER SUPPLY	TI datasheet, p. 8 — 5.7 Electrical Characteristics (continued)
output current	36 mA	—	—	Sourcing; isc; OUTPUT	TI datasheet, p. 8 — 5.7 Electrical Characteristics (continued)
supply voltage range	2.5 V	15 V	18 V	Dual supply; vs(v–); 5.3 Recommended Operating Conditions	TI datasheet, p. 5 — 5.3 Recommended Operating Conditions
abs max current (abs max)	-10 mA	—	10 mA		TI datasheet, p. 5 — 5.1 Absolute Maximum Ratings
input offset voltage drift	—	2 µV/°C	—	TA = −40°C to +85°C; OFFSET VOLTAGE	TI datasheet, p. 7 — 5.7 Electrical Characteristics
input offset voltage	—	1 mV	3.5 mV	vos; OFFSET VOLTAGE	TI datasheet, p. 7 — 5.7 Electrical Characteristics
gain bandwidth	—	8 MHz	—	gbw; FREQUENCY RESPONSE	TI datasheet, p. 7 — 5.7 Electrical Characteristics
cmrr	86 dB	100 dB	—	−12.5V ≤ VCM≤ 11.5V; cmrr; INPUT VOLTAGE	TI datasheet, p. 7 — 5.7 Electrical Characteristics
operating temperature	-40 °C	—	85 °C	ta; 5.3 Recommended Operating Conditions	TI datasheet, p. 5 — 5.3 Recommended Operating Conditions
input offset current	—	2 pA	50 pA	ios; INPUT BIAS CURRENT	TI datasheet, p. 7 — 5.7 Electrical Characteristics
input bias current	—	5 pA	100 pA	ib; INPUT BIAS CURRENT	TI datasheet, p. 7 — 5.7 Electrical Characteristics
slew rate	—	20 V/µs	—	FREQUENCY RESPONSE	TI datasheet, p. 7 — 5.7 Electrical Characteristics
psrr	90 dB	106 dB	—	5V ≤ VS≤ 36V; psrr; OFFSET VOLTAGE	TI datasheet, p. 7 — 5.7 Electrical Characteristics
input voltage noise density	—	8 nV/√Hz	—	f = 1kHz; en; NOISE	TI datasheet, p. 7 — 5.7 Electrical Characteristics
response time	—	800 ns	—	G = +1, settling to 0.1%	TI datasheet, p. 12
settling time	—	700 ns	—	10V step, G = 1, CL = 100pF; 0.1%; FREQUENCY RESPONSE	TI datasheet, p. 7 — 5.7 Electrical Characteristics
channel count	—	1	—		TI datasheet, p. 1 — Device Information

02 — Alternatives

Closest matches to OPA134

TL071H 5.0× lower input bias current, 4.8× lower quiescent current, 4.6× higher input voltage noise density

GS8721 5.0× lower input bias current, 4.1× lower quiescent current, 3.9× lower supply voltage range

TL072 10.0× higher input offset voltage, 8.0× lower response time, 5.0× higher input offset voltage drift

NE5532 4.0× lower slew rate, 2.0× lower input offset voltage, 1.6× higher operating temperature

TLV9001 10.0× lower slew rate, 8.0× lower gain bandwidth, 4.1× lower supply voltage range

MCP6021 6.0× higher input bias current, 4.5× lower quiescent current, 3.8× lower supply voltage range

TL081H 5.0× lower input bias current, 4.8× lower quiescent current, 4.6× higher input voltage noise density

TL082 8.0× lower response time, 5.0× higher input offset voltage drift, 4.0× higher input bias current

03 — FAQ

Frequently asked questions

What is the absolute maximum current for the OPA134?

The absolute maximum current is 10 mA.

What is the channel count of the OPA134?

The channel count is 1.

What is the CMRR of the OPA134 when the input voltage is between −12.5V and 11.5V?

The CMRR is 100 dB when the input voltage is between −12.5V and 11.5V.

What is the gain bandwidth of the OPA134?

The gain bandwidth is 8 MHz under the gbw; FREQUENCY RESPONSE condition.

What is the input bias current (ib) for the OPA134?

The input bias current (ib) is 5 pA.

What is the input offset current (ios) under the input bias current condition?

The input offset current (ios) is 2 pA.

What is the input offset voltage (vos) of the OPA134?

The input offset voltage (vos; OFFSET VOLTAGE) is 1 mV.

What is the input offset voltage drift for the OPA134?

The input offset voltage drift is 2 µV/°C at TA = −40°C to +85°C; OFFSET VOLTAGE.

What is the input voltage noise density of the OPA134 at f = 1kHz?

The input voltage noise density is 8 nV/√Hz.

What is the maximum operating temperature (ta) specified in section 5.3 Recommended Operating Conditions?

The maximum operating temperature (ta) is 85 °C.

What is the output current when sourcing under short-circuit conditions (isc) at the OUTPUT?

The output current is 36 mA.

What is the PSRR for the OPA134 when the supply voltage is between 5V and 36V?

The PSRR is 106 dB.