OPA593 85-V, 250-mA Output Current, Precision, Power Op Amp

1 Features

• Wide power-supply range:

– 8 V (±4 V) to 85 V (±42.5 V)

• Low offset voltage: ±20 µV

• Low offset voltage drift: ±0.4 µV/°C

• High output current: 250 mA

• Wide gain bandwidth: 10 MHz

• High slew rate: 45 V/µs, rising

• Low noise: 7 nV/√Hz at 10 kHz

• Mux-friendly inputs

• Rail-to-rail output

• Quiescent current:

– Enabled: 3.25 mA

– Disabled: 250 μA

• Specified current limit accuracy

• Overtemperature and overcurrent flags

• Temperature range: –40°C to +125°C

• Package: 12-pin WSON

2 Applications

• Semiconductor test

• Semiconductor manufacturing

• Programmable DC power supply

• LCD test

• CT and PET scanner

Current Limit Resistor, RCL (k )

0

50

100 150 200 250 300 350 400 450 500 550

-260

-220

-180

-140

-100

-60

-20

20

60

100

140

180

220

260

Output Current vs Current-Limit Resistor

Configuration

3 Description

The OPA593 is a high-voltage (85 V), high-

precision, wide-bandwidth (10 MHz), high-output-

current (250 mA), unity-gain-stable, power op amp.

The OPA593 uses a laser trimming technique to

improve the offset voltage (20 µV, typical) and offset

voltage drift (0.4 µV/°C, typical), and thus avoids the

need for calibration. This device features mux-friendly

inputs that enable differential input voltage range to

the supply rails and help improve settling performance

in multichannel systems.

An external resistor can be used to limit the current

with specified accuracy, and thus provide more

precise measurements. In case of an overcurrent

or overtemperature condition, the device indicates

erroneous operation through a status flag. An

included disable feature is used to shutdown the

device, saving power and placing the output into a

high-impedance state.

The device is unity-gain stable, enabling operation

as a high-impedance buffer. The wide bandwidth and

high slew enable high signal gains. The high output

current and capacitive drive allow the device to drive

external field-effect transistors (FETs) used to provide

higher system currents, such as in a digital power

supply.

Package Information

PART NUMBER

PACKAGE(1)

BODY SIZE (NOM)

OPA593

DNT (WSON, 12)

4.00 mm × 4.00 mm

(1)

For all available packages, see the package option

addendum at the end of the data sheet.

+

–

10 k

+

–

45 V

–5 V

1.47 k

GND

GND

Input

Output

Output Driver Configured With a Gain of 8

OPA593

SBOS659C – JANUARY 2022 – REVISED DECEMBER 2022

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.