OPA892 2-GHz, 10-V/V Stable, 0.95-nV/√Hz, Ultra-Low THD Operational Amplifier

1 Features

• Ultra-low 0.95-nV/√Hz voltage noise

• High speed:

– 2-GHz gain-bandwidth product

– 700-V/μs slew rate

– 30-ns settling time (0.1%)

• Stable at gains ≥10 V/V

• Output drive, IO = 200 mA (typical)

• Very low distortion:

– THD = –78 dBc (f = 1 MHz, RL = 150 Ω)

– THD+N = –114 dBc (f = 1 kHz, BW = 80 kHz)

• Wide range of power supplies:

– VCC = ±4.5 V to ±18 V

• Offset nulling pins on the OPA892

2 Applications

• Ultrasound scanner

• Source measurement unit (SMU)

• Power quality meter

• Ultrasound Scanners

• Vector signal transceiver (VST)

• Professional audio mixer or control surface

• Professional microphones and wireless systems

• Professional speaker systems

• Professional audio amplifier

• Soundbar

• Turntable

• Professional video camera

• Guitar and other instrument amplifier

• Data acquisition (DAQ)

3 Description

The OPA892 and OPA2892 (OPAx892) are ultra-low

voltage noise, high-speed voltage-feedback amplifiers

that are an excellent choice for applications requiring

low voltage noise, including communication and

imaging. The single-amplifier OPA892 and the dual-

amplifier OPA2892 offer very good ac performance

with a 290

‑MHz bandwidth, a 700‑V/μs slew rate, and

a 30

‑ns settling time (0.1%) for a gain of 10 V/V. The

OPAx892 are stable at gains of 10 or greater and –9

or less. These amplifiers have a high drive capability

of 200 mA and draw only 7.5 mA of supply current

per amplifier. With a total harmonic distortion (THD)

of –68 dBc at f = 1 MHz, the OPAx892 are designed

for applications requiring low distortion. Because the

distortion remains low over a wide range of output

voltages, the OPAx892 is useful in large dynamic-

range applications such as imaging, sonar, and audio.

Device Information

PART

NUMBER

AMPLIFIERS

PACKAGE(1)

PACKAGE

SIZE(2)

OPA892

One

D (SOIC, 8)

4.9 mm × 6 mm

OPA2892 (3) Two

DGN (HVSSOP, 8) 3 mm × 4.9 mm

(1)

For more information, see Section 10.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

(3)

Preview information (not Advanced Information).

+

–

R

F

V

OUT

OPA892

R

G

Low Distortion Piezoelectric Sensor Amplifier

Output Voltage (V)

0

2

4

6

8

10

12

14

16

18

20

-130

-120

-110

-100

-90

-80

-70

-60

-50

0.1

0.01

0.001

0.0001

HD2

HD3

VCC = ±15 V, RL = 150 Ω, f = 1 MHz

Harmonic Distortion vs

Peak-to-peak Output Voltage

OPA892

SLOSEB4 – NOVEMBER 2023

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.