1FEATURES

2• Low Supply Current: 2.3mA max

• Low Offset Drift: 10mV/°C max

• Low Input Bias Current: 20pA max

• Very Low 1/f Noise: 250nVPP

• Low Noise: 6.5nV/√Hz

• Wide Bandwidth: 10MHz

• Slew Rate: 20V/ms

• Input Voltage Range Includes V–

• Rail-to-Rail Output

• Single-Supply Operation: 4.5V to 36V

• Dual-Supply Operation: ±2.25V to ±18V

• No Phase Reversal

• MSOP-8, TSSOP Packages

APPLICATIONS

• Battery-Powered Instruments

• Industrial Controls

• Medical Instrumentation

• Photodiode Amplifiers

• Active Filters

• Data Acquisition Systems

• Portable Audio

• Automatic Test Systems

DESCRIPTION

The OPA141, OPA2141, and OPA4141 amplifier

family is a series of low-power JFET input amplifiers

that feature 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 OPA141 achieves 10MHz unity-gain bandwidth

and 20V/ms slew rate while consuming only 1.8mA

(typ) of quiescent current. It runs on a single 4.5 to

36V supply or dual ±2.25V to ±18V supplies.

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

for use in the most challenging environments. The

OPA141 (single) and OPA2141 (dual) versions are

available in both MSOP-8 and SO-8 packages; the OPA4141 (quad) is available in the SO-14 and

TSSOP-14 packages.