+

±

V

S+

R

G

R

G

R

F

V

REF

I

SH

+

±

V

TH

Short Circuit

Detection

LOAD

OPA607

R

EXT

C

EXT

GND

+

±

TLV3201

VCC

LED driver

Transimpedance

stage

í

+

VREF

ADC

OPA607

APD

Product

Folder

Order

Now

Technical

Documents

Tools &

Software

Support &

Community

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 pre-production products; subject to

change without notice.

OPAX607

SBOS981B – OCTOBER 2019 – REVISED FEBRUARY 2020

OPAX607 50-MHz, Low-Power, Gain of 6-V/V Stable, Rail-to-Rail Output

CMOS Operational Amplifier

1

1 Features

1

•

•

Input Offset Drift: 1.5 μV/°C (maximum)

•

Offset voltage: 100 µV (typical)

•

Gain bandwidth product: 50 MHz

•

Broadband noise: 3.8 nV/

√Hz

•

Input bias current: 20 pA (maximum)

•

Rail-to-rail output (RRO)

•

Decompensated, gain

≥ 6 V/V (stable)

•

Shutdown current: 1 µA (maximum)

•

Supply range: 2.2 V to 5.5 V

2 Applications

•

Current-sensing

•

Fish finders and sonar

•

Ultrasonic flow meters

•

Printers

•

Light curtains and safety guards

•

Optical modules

•

Handheld test equipment

•

PM2.5 and PM10 particle sensors

3 Description

The OPAX607 is a decompensated (gain = 6 V/V

stable), general-purpose complementary metal oxide

semiconductor (CMOS) operational amplifier (op

amp) that provides low noise of 3.8 nV/

√Hz and a

wide gain bandwidth of 50 MHz. The low noise and

wide bandwidth of the OPAX607 make the device

attractive

for

general-purpose

applications

that

require

a

good

balance

between

cost

and

performance. The high-impedance CMOS inputs

make the OPAX607 an ideal amplifier to interface

with sensors with large output

impedance

(for

example, piezoelectric transducers).

The OPA607 features a power-down mode with a

maximum quiescent current of less than 1 µA, making

the device suitable for use in portable battery-

powered applications. The rail-to-rail output (RRO) of

the OPA607 can swing up to 10 mV from the supply

rails, enabling maximum dynamic range.

This op amp is optimized for low-voltage operation as

low as 2.2 V (±1.1 V) and up to 5.5 V (±2.75 V), and

is specified over the temperature range of –40°C to

+125°C.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

OPA607

SC70 (6)

2.00 mm × 1.25 mm

SOT23 (5)

2.90 mm × 1.60 mm

OPA2607

SOIC (8) (2)

4.90 mm × 3.91 mm

VSSOP (8) (2)

3.00 mm × 3.00 mm

X2QFN (10) (2)

1.50 mm × 2.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

(2) Preview package.

OPA607 as a Difference Amplifier for a Current-

Sensing Application

OPA607 as a Low-Speed TIA