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

Updated : 2020-01-09 14:18:34
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.

Products containing the "OPA140" keyword are: OPA140AID , OPA140AID , OPA140AIDBV , OPA140AIDBVR , OPA140AIDBVR , OPA140AIDBVRG4 , OPA140AIDBVT , OPA140AIDBVT , OPA140AIDBVTG4 , OPA140AIDGKR , OPA140AIDGKR , OPA140AIDGKT , OPA140AIDGKT , OPA140AIDPVT , OPA140AIDR , OPA140AIDR , OPA140AIDRG4 , OPA140ALDBVT , OPA140ATDD1 , OPA140ATDD2
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

Parametrics
StatusACTIVE
Number of channels1
Total Supply Voltage4.5
Vos (offset voltage @ 25 C)0.12
GBW11
Slew Rate20
Rail-to-railIn to V-^Out
Offset drift0.35
Iq per channel1.8
Vn at 1 kHz5.1
CMRR140
RatingCatalog
Operating temperature range-40 to 125
Package GroupSOIC|8
Approx. price1.55 | 1ku
Package size: mm2:W x L (PKG)[pf]8SOIC[/pf]: 29 mm2: 6 x 4.9 (SOIC|8)
Input bias current10
Output current30
FeaturesN/A
ArchitectureFET
Input common mode headroom (to negative supply)-0.1
Input common mode headroom (to positive supply)-3.5
Output swing headroom (to negative supply)0.35
Output swing headroom (to positive supply)-0.35
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