OPA141/OPA2141/OPA4141 JFET Precision Amplifiers

Product Highlights > OPA141/OPA2141/OPA4141 JFET Precision Amplifiers

            OPA141/OPA2141/OPA4141 JFET Precision Amplifiers
                    Texas Instruments JFET precision amplifiers feature 2.3 mA max supply current and 10 µV/°C max offset drift
    

Image of Texas Instruments OPA141/OPA2141/OPA4141 JFET Precision Amplifiers The Texas Instruments OPA141, OPA2141, and OPA4141 amplifiers are part of 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 include V- allow designers to take advantage of the low-noise characteristics of JFET amplifiers while also interfacing with modern, single-supply, precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).

The OPA141 achieves 10 MHz unity-gain bandwidth and 20 V/µs slew rate while consuming only 1.8 mA (typ.) of quiescent current. It 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 OPA141 (single) and OPA2141 (dual) versions are available in both MSOP-8 and SO-8 packages; the OPA4141 (quad) is available in SO-14 and TSSOP-14 packages.

Features

Low supply current: 2.3 mA max
Low offset drift: 10 µV/°C max
Low input bias current: 20 pA max
Very low 1/f noise: 250 nV_PP
Low noise: 6.5 nV/√Hz
Wide bandwidth: 10 MHz
Slew rate: 20 V/µs
Input voltage range includes V-
Rail-to-rail output
Single-supply operation: 4.5 V to 36 V
Dual-supply operation: ±2.25 V to ±18 V
No phase reversal
MSOP-8 and TSSOP packages

Applications

Battery-powered instruments
Industrial controls
Medical instrumentation
Photodiode amplifiers
Active filters
Data acquisition systems
Portable audio
Automatic test systems