OPA4191 - Low-Power, Precision, 36-V, e-trim™­ CMOS Amplifier

Updated : 2020-01-09 14:18:23
Description

The OPAx191 family (OPA191, OPA2191, OPA4191) is a new generation of 36-V, e-trim operational amplifiers.

These devices offer outstanding dc precision and ac performance, including rail-to-rail input/output, low offset voltage (±5 µV, typ), low offset drift (±0.2 µV/°C, typ), and 2-MHz bandwidth.

Unique features such as differential input-voltage range to the supply rail, high output current (±65 mA), high capacitive load drive of up to 1 nF, and high slew rate (5 V/µs) make the OPAx191 a robust, high-performance operational amplifier for high-voltage industrial applications.

The opax191 family of op amps is available in standard packages and is specified from –40°C to +125°C.

Products containing the "OPA4191" keyword are: OPA4191ID , OPA4191ID , OPA4191IDR , OPA4191IDR
Features

  • Low Offset Voltage: ±5 µV
  • Low Offset Voltage Drift: ±0.1 µV/°C
  • Low Noise: 15 nV/√Hz at 1 kHz
  • High Common-Mode Rejection: 140 dB
  • Low Bias Current: ±5 pA
  • Rail-to-Rail Input and Output
  • Wide Bandwidth: 2.5-MHz GBW
  • High Slew Rate: 5 V/µs
  • Low Quiescent Current: 140 µA per Amplifier
  • Wide Supply: ±2.25 V to ±18 V, 4.5 V to 36 V
  • EMI/RFI Filtered Inputs
  • Differential Input Voltage Range to Supply Rail
  • High Capacitive Load Drive Capability: 1 nF
  • Industry Standard Packages:
    • Single in SOIC-8, SOT-5, and VSSOP-8
    • Dual in SOIC-8 and VSSOP-8
    • Quad in SOIC-14 and TSSOP-14

Parametrics
StatusACTIVE
Number of channels4
Total Supply Voltage4.5
Vos (offset voltage @ 25 C)0.025
GBW2.5
Slew Rate5.5
Rail-to-railOut
Offset drift0.15
Iq per channel0.14
Vn at 1 kHz15
CMRR140
RatingCatalog
Operating temperature range-40 to 125
Package GroupSOIC|14
Approx. price2.29 | 1ku
Package size: mm2:W x L (PKG)[pf]14SOIC[/pf]: 52 mm2: 6 x 8.65 (SOIC|14)
Input bias current20
Output current65
FeaturesEMI Hardened^High Cload Drive^Small Size
ArchitectureCMOS
Input common mode headroom (to negative supply)-0.1
Input common mode headroom (to positive supply)0.1
Output swing headroom (to negative supply)0.015
Output swing headroom (to positive supply)-0.015