OPA140 11MHz, Single Supply, Low Noise, Precision, Rail-to-Rail Output, JFET Amplifier | TI.com

OPA140
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11MHz, Single Supply, Low Noise, Precision, Rail-to-Rail Output, JFET Amplifier

 

Recommended alternative parts

  • OPA145  -  Achieve similar performance with lower power consumption (0.445mA)

Description

The OPA140, OPA2140, and OPA4140 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. 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 OPA140 (single) is available in the 5-pin SOT-23, 8-pin VSSOP, and 8-pin SOIC packages; the OPA2140 (dual) is available in both 8-pin VSSOP and 8-pin SOIC packages; and the OPA4140 (quad) is available in the 14-pin SOIC and 14-pin TSSOP packages.

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
  • Industry-Standard SOIC Packages
  • VSSOP, TSSOP, and SOT-23 Packages

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Parametrics

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Part number Order Number of channels (#) Total supply voltage (Min) (+5V=5, +/-5V=10) Total supply voltage (Max) (+5V=5, +/-5V=10) GBW (Typ) (MHz) Slew rate (Typ) (V/us) Rail-to-rail Vos (offset voltage @ 25 C) (Max) (mV) Offset drift (Typ) (uV/C) Iq per channel (Typ) (mA) Vn at 1 kHz (Typ) (nV/rtHz) CMRR (Typ) (dB) Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Input bias current (Max) (pA) Output current (Typ) (mA) Features Architecture
OPA140 Order now 1     4.5     36     11     20     In to V-
Out    
0.12     0.35     1.8     5.1     140     Catalog     -40 to 125     SOIC | 8
SOT-23 | 5
VSSOP | 8    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
10     30         FET