OPA593 85-V, 250-mA Output Current, Precision Operational Amplifier

1 Features

• Low offset voltage: ±10 µV

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

• High output current: 250 mA

• Low noise: 6 nV/√Hz at 10 kHz

• Rail-to-rail output

• Wide bandwidth: 10-MHz GBW

• High slew rate: 40 V/µs

• Wide supply: ±5 V to ±42.5 V, 10 V to 85 V

• Quiescent current: 3.25 mA

• Current limit accurate to 10%

• Disable function

• Overtemperature and overcurrent flags

• Temperature range: –40°C to +125°C

• Available in WSON package

2 Applications

• Semiconductor test

• Semiconductor manufacturing

• DC power supply, AC source, electronic load

• LCD test

3 Description

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

(10 MHz), high-output-current (250 mA), unity-gain-

stable operational amplifier.

The OPA593 uses a laser trimming technique

to improve the offset voltage (10 µV) and offset

voltage drift (0.4 µV/°C), thus avoiding the need for

calibration. An external resistor can be used to limit

the current (±10% accuracy), thus providing more

precise measurements. In case of an overcurrent

or overtemperature condition, the device indicates

erroneous operation through a status flag. An

included disable feature can be 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, while the wide bandwidth

(10 MHz) and high slew (40 V/µs) enable high signal

gains. The high output current and capacitive drive

allow the device to drive external FETs used to

provide higher system currents, such as in a digital

power supply.

Device Information

PART NUMBER

PACKAGE(1)

BODY SIZE (NOM)

OPA593

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.

Current Limit Resistor (k )

0

25

50

75

100

125

150

175

200

225

250

-300

-250

-200

-150

-100

-50

0

50

100

150

200

250

300

Ideal ILIMIT Sourcing

Measured ILIMIT Sourcing

Ideal ILIMIT Sinking

Measured ILIMIT Sinking

Output Current vs Current-Limit Resistor

Configuration

+

–

10 k

+

–

45 V

–5 V

1.47 k

GND

GND

Input

Output

Output Driver Configured With a Gain of 8

OPA593

SBOS659A – JANUARY 2022 – REVISED MARCH 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. ADVANCE INFORMATION for preproduction products; subject to change

without notice.