OPA2834IDGKR

The OPA2834 is a dual-channel, ultra-low-power, rail-to-rail output, negative-rail input, voltage-feedback (VFB) operational amplifier designed to operate over a power-supply range of 2.7 V to 5.4 V with a single supply, or ±1.35 V to ±2.7 V with a dual supply. Consuming only 170 µA per channel and with a unity-gain bandwidth of 50 MHz, this amplifier sets an industry-leading performance-to-power ratio for rail-to-rail amplifiers.

For battery-powered and portable applications where low power consumption is of key importance, the OPA2834 offers an excellent bandwidth to I_Q ratio. OPA2834 offers very low distortion making it very suitable for data acquisition systems and microphone pre-amplifier.

See the Device Comparison Table for a selection of low-power, low-noise, 5-V amplifiers from Texas Instruments with a gain-bandwidth product from 20 MHz to 300 MHz.

Key Features

• Ultra-low power:
  • Supply voltage: 2.7 V to 5.4 V
  • Quiescent current (I_Q): 170 µA/ch (typical)
• Bandwidth: 50 MHz (G = 1 V/V)
• Slew rate: 26 V/µs
• Settling time (0.1%): 88 ns (2-V_STEP)
• HD₂, HD₃: –131 dBc, –146 dBc at 10 kHz (2 V_PP)
• Input voltage noise: 12 nV/√Hz (f = 10 kHz)
• Input offset voltage: 350 µV (±1.9 mV max)
• Negative rail input, rail-to-rail output (RRO)
  • Input voltage range: –0.2 V to 3.9 V
    (5-V supply)
• Operating temperature range:
  –40°C to +125°C