Texas Instruments OPA140
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-torail output swing and input range that includes V– allow designers to take advantage of the lownoise characteristics of JFET amplifiers while also interfacing to modern, single-supply, precision analogto-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.| Part No. | OPA140 |
|---|---|
| Datasheet | OPA140 Download |
| Manufacturer |  Texas Instruments |
| Description | 11-MHz JFET op-amp |
| Buy | Stock & Price |
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 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 VSUPPLY = ±18V OPAx140 Competitor’s Device 200nV/div Time (1s/div) 0.1-Hz to 10-Hz Noise 3
DESCRIPTION
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.
