OPA835 VFB Amplifiers

By Texas Instruments 134

OPA835 VFB Amplifiers

Fabricated using the industry-leading BiCom-3x (SiGe complimentary bipolar) process, Texas Instruments' OPA835 is a single ultra-low-power, rail-to-rail output, negative rail input, voltage-feedback operational amplifier designed to operate over a power supply range of 2.5 V to 5.5 V single supply and ±1.25 V to ±2.75 V dual supply. Consuming only 250 µA per channel and a unity gain bandwidth of 56 MHz, these amplifiers set an industry leading power-to-performance ratio for rail-to-rail amplifiers.

Features Applications
  • Ultra low power
    • Supply voltage: 2.5 V to 5.5 V
    • Quiescent current: 250 µA (typ)
    • Power down mode: 0.5 µA (typ)
  • Bandwidth: 56 MHz
  • Slew rate: 160 V/µs
  • Rise time: 10 ns (2 VSTEP)
  • Low power signal conditioning
  • Audio ADC input buffer
  • Low power SAR and ΔΣ ADC driver
  • Portable systems
  • Low power systems
  • High density systems
  • Ultrasonic flow meter

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