OPA140AIDR Precision JFET Op-Amp with 11MHz Bandwidth 20V/µs Slew Rate Low Noise (7nV/√Hz) 1.1mA Quiescent Current ±2.25V to ±18V Supply SOIC-8 Package

Features

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

• Very-low offset: 120 μV

• Low input bias current: 10 pA maximum

• Very-low 1/f noise: 250 nVPP, 0.1 Hz to 10 Hz

• 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, SOT-23, TSSOP, and VSSOP

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

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.

INFORMATION

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