OPAx140 High-Precision, Low-Noise, Rail-to-Rail Output, 11-MHz, JFET Op Amp

1 Features

• Very-low offset drift: 1 μV/°C maximum

• Very-low offset: 120 μV

• Low input bias current: 10 pA maximum

• Low noise: 5.1 nV/√Hz

• Slew rate: 20 V/μs

• Low supply current: 2 mA maximum

• Input voltage range includes V– supply

• Single-supply operation: 4.5 V to 36 V

• Dual-supply operation: ±2.25 V to ±18 V

• No phase reversal

• Packages:

– Industry-standard SOIC, SON (Preview),

SOT-23, TSSOP, and VSSOP

2 Applications

• Intra-dc interconnect (metro)

• Semiconductor test

• Chemistry and gas analyzer

• DC power supply, ac source, electronic load

• Data acquisition (DAQ)

• Lab and field instrumentation

Time (1s/div)

Competitor’s Device

OPAx140

V

= 18V

SUPPLY

±

0.1-Hz to 10-Hz Noise

3 Description

The OPA140, OPA2140, and OPA4140 (OPAx140)

operational amplifier (op amp) family is a series

of low-power JFET input amplifiers that features

good drift and low input bias current. The rail-to-

rail output swing and input range that includes

V– allow designers to take advantage of the low-

noise characteristics of JFET amplifiers while also

interfacing to modern, single-supply, precision analog-

to-digital converters (ADCs) and digital-to-analog

converters (DACs).

The OPA140 achieves 11-MHz unity-gain bandwidth

and 20-V/μs slew rate while consuming only 1.8 mA

(typical) of quiescent current. This device runs on a

single 4.5-V to 36-V supply or dual ±2.25-V to ±18-V

supplies.

All versions are fully specified from –40°C to +125°C

for use in the most challenging environments. The

OPA140 (single) is available in the 5

‑pin SOT-23 8‑pin

VSSOP and 8

‑pin SOIC packages. The OPA2140

(dual) is available in 8

‑pin SON, 8‑pin VSSOP,

and 8

‑pin SOIC packages. The OPA4140 (quad) is

available in the 14

‑pin SOIC and 14‑pin TSSOP

packages.

Device Information

PART NUMBER

PACKAGE(1)

BODY SIZE (NOM)

OPA140

SOIC (8)

4.90 mm × 3.90 mm

SOT23 (5)

2.90 mm × 1.60 mm

VSSOP (8)

3.00 mm × 3.00 mm

OPA2140

SOIC (8)

4.90 mm × 3.90 mm

SON (8) - Preview

3.00 mm x 3.00 mm

VSSOP (8)

3.00 mm × 3.00 mm

OPA4140

SOIC (14)

8.65 mm × 3.90 mm

TSSOP (14)

5.00 mm × 4.40 mm

(1)

For all available packages, see the package option

addendum at the end of the data sheet.

OPA140, OPA2140, OPA4140

SBOS498E – JULY 2010 – REVISED JULY 2021

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.