1.6MHz Bandwidth, Micropower Low Noise Op-amps




  • Low Noise: 13nV/√Hz(f= 1kHz)

  • Supply Current: 190μA/ch

  • Offset Voltage: 1 mV (max)

  • Low THD+N: 0.0005%

  • Supply Range: 2.2V to 5.5V

  • Low Input Bias Current: 0.3pA Typical

  • EMIRR IN+: 85 dB( under 2.4GHz)

  • Slew Rate: 0.9 V/μs

  • Gain-bandwidth Product: 1.6MHz

  • Rail-to-Rail I/O

  • High Output Current: 70mA (1.0V Drop)

  • –40°C to 125°C Operation Range

  • Robust 7kV-HBM and 2kV-CDM ESD Rating


  • Portable Equipment

  • Battery-Powered Instruments

  • Data Acquisition and Control

  • Low-Voltage Signal Conditioning

  • Communications

  • Security


The single TP2431, dual TP2432, and quad TP2434 operational amplifiers combine excellent DC accuracy with Rail-to-Rail operation at the input and output. Since the common-mode voltage extends from VCC to VEE, the devices can operate from either a single supply (2.2V to 5.5V) or split supplies (±1.1V to ±2.75V). Each op amp requires less than 190μA of supply current. Even with this low current, the op amps are capable of driving a 1kΩ load, and the input-referred voltage noise is only 13nV/√Hz.

In addition, these op amps can drive loads in excess of 2000pF. The precision performance of the TP2431/TP2432/ TP2434 combined with their wide input and output dynamic range, low-voltage, single-supply operation, and very low supply current, make them an ideal choice for battery-operated equipment, industrial, and data acquisition and control applications.The TP2431 is single channel version available in 8-pin SOP and 5-pin SOT23 packages. The TP2432 is dual channel version available in 8-pin SOP and MSOP packages. The TP2434 is quad channel version available in 14-pin SOP and TSSOP packages.


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