Analog Devices Launched New 36 V, Low Noise, Zero Drift Op Amp

Analog Devices ADA4523-1

Analog Devices launched new a high voltage, low noise, zero drift op amp ADA4523-1 that offers precision dc performance over a wide supply range of 4.5 V to 36 V. Offset voltage and 1/f noise are suppressed, allowing this op amp to achieve a maximum offset voltage of ±4 μV and a 0.1 Hz to 10 Hz input noise voltage of 88 nV p-p typical. The self calibrating circuitry of the ADA4523-1 results in low offset voltage drift with temperature (0.01 μV/°C maximum) and zero drift over time. Additionally, the ADA4523-1 uses on-chip filtering to achieve high immunity to electromagnetic interference (EMI).

Analog Devices - ADA4523-1

Wide supply range, combined with low noise, low offset, 168 dB power supply rejection ratio (PSRR), and 160 dB common-mode rejection ratio (CMRR), make the ADA4523-1 well suited for high dynamic range test, measurement, and instrumentation systems.

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Input-Referred Voltage Noise Density vs. Frequency, Zero Drift Amplifier
Family Comparison.

The ADA4523-1 provides a rail-to-rail output swing and an input common-mode range that includes the V rail (V – 0.1 V to V+ – 1.5 V).

Features

  • Supply voltage range: 4.5 V to 36 V
  • Offset voltage: ±4 μV maximum at 5 V
  • Offset voltage drift: 0.01 μV/°C maximum at 5 V
  • Input noise
    • Voltage: 88 nV p-p from 0.1 Hz to 10 Hz typical
    • Spectral density voltage: 4.2 nV/√Hz typical at 1 kHz
  • Rail-to-rail output
  • Unity-gain stable
  • GBP: 5 MHz typical
  • Slew rate: 1.8 V/μs typical falling
  • PSRR: 168 dB typical at VS = 4.5 V to 36 V
  • Open-loop voltage gain: 160 dB typical at VOUT = –14.75 V to +14.75 V, RL = 10 kΩ, VS = 30 V
  • CMRR: 160 dB typical at VCM = –15.1 V to +13.5 V, VS = 30 V
  • Integrated EMI filters
  • Shutdown mode
  • Ground sense
  • Available in 8-lead SOIC, 8-lead MSOP, and 8-lead LFCSP

Applications

  • High resolution data acquisition
  • Reference buffering
  • Test and measurement
  • Electronic scales
  • Thermocouple amplifiers
  • Strain gages
  • Low-side current sense
Full Featured Evaluation Board for the ADA4523-1
Full Featured Evaluation Board for the ADA4523-1.

JLCPCP: 2USD 2Layer 5PCBs, 5USD 4Layer 5PCBs

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