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Precision, 10-MHz, low-noise, low-power, RRIO, CMOS zero-crossover operational amplifier


Package | PIN: TSSOP (PW) | 14
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $2.76
10-24 $2.48
25-99 $2.31
100-249 $2.03
250-499 $1.90
500-749 $1.61
750-999 $1.36
1000+ $1.30


  • Precision with zero-crossover distortion:
    • Low offsetvoltage: 150 µV (maximum)
    • High CMRR: 114 dB
    • Rail-to-railI/O
  • Wide bandwidth: 10 MHz
  • Quiescent current: 650 µA/ch
  • Single-supply voltage range: 2.2 V to 5.5 V
  • Low input bias current: 0.2 pA
  • Low noise: 9 nV/√Hz at 10 kHz
  • Slew rate: 5 V/µs
  • Unity-gain stable

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Texas Instruments  POPA4325IPWR

The OPA2325 and OPA4325 (OPAx325) are precision, low-voltage complementary metal-oxidesemiconductor (CMOS) operational amplifiers optimized for very low noise and wide bandwidth whileoperating on a low quiescent current of only 650 µA.

The OPAx325 feature a linear input stage with zero-crossover distortion that deliversexcellent common-mode rejection ratio (CMRR) of typically 114 dB over the entire input range. Theinput common-mode range extends 100 mV beyond the negative and positive supply rails. The outputvoltage typically swings within 10 mV of the rails.

The zero-crossover distortion, combined with wide bandwidth (10 MHz), high slew rate (5V/µs), and low noise (9 nV/√Hz), make the OPAx325 a very goodsuccessive-approximation register (SAR) analog-to-digital converter (ADC) input driver amplifier.In addition, the OPAx325 have a wide supply-voltage range from 2.2 V to 5.5 V, with excellentpower-supply rejection ratio (PSRR) over the entire supply range, making the device an excellentchoice for precision, low-power applications that run directly from batteries withoutregulation.

The OPA2325 (dual-channel version) is offered in SO-8 and MSOP-8 packages. TheOPA4325 (quad-channel version) is available in TSSOP-14 package.