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Analog Devices Inc. ADA4620-1/-2 Precision JFET Op Amps

Analog Devices Inc. ADA4620-1 and ADA4620-2 Precision JFET Op Amps are 36V, low noise, and low offset drift op amps available in 8-lead SOIC_N packages. These devices offer the combination of top precision parameters at speed and extended operating range and temperature. The specifications make the ADA4620 devices optimal as a front-end amplifier in a Data Acquisition (DAQ) system or a Trans-impedance Amplifier (TIA) circuit with high-input impedance. The ADA4620 op amps consume just 1.3mA per amplifier, delivering a 16.5MHz gain-bandwidth product, 32V/μs slew rate, and 5.1nV/√Hz broadband noise. These op amps offer 225nVp-p noise from 0.1Hz to 10Hz, with a negative supply input voltage range and rail-to-rail output swings. 

The ADA4620-1/-2 JFET op amps are ideal for high DC precision and AC performance. These JFET op amps operate across a -40°C to 125°C temperature range, with dual supplies of ±2.25V to ±18V or a single supply range of 4.5V to 36V. Typical applications include trans-impedance amplifiers, electronic test and measurements, scientific and field instruments, semiconductor tests, data acquisition systems, and high-impedance sensors.

Features

  • ±30μV low offset voltage (typical)
  • ±0.32μV/°C low offset voltage drift (typical)
  • ±0.8pA (typical), ±5pA maximum low input bias current
  • 225nVP-P, 0.1Hz to 10Hz low 1/f noise (typical)
  • 5.1nV/√Hz @1kHz voltage noise density (typical)
  • 16MHz gain bandwidth product (typical)
  • 32V/μs high slew rate (typical)
  • -148dB @1kHz low THD(typical)
  • 1.3mA per amplifier low supply current (typical)
  • No phase reversal
  • Wide power supply range:
    • Single supply: 4.5V to 36V
    • Dual supplies: ±2.25V to ±18V
  • Unity-gain stable
  • Extended high-input common-mode range
    • (V+) -4.4V < VCM ≤ (V+)
  • Multiple channel options:
    • ADA4620-1 single channel
    • ADA4620-2 dual channel

Applications

  • Trans-impedance Amplifiers (TIAs)
  • Electronic test and measurement 
  • Scientific and field instruments 
  • Semiconductor test 
  • Data acquisition systems
  • High impedance sensors

Typical Application Diagram

Application Circuit Diagram - Analog Devices Inc. ADA4620-1/-2 Precision JFET Op Amps

Evaluation Tools

Analog Devices Inc. EVAL-ADA4620-1 Evaluation Board

Designed for the ADA4620-1, a 36V, precision JFET op amp in an 8-lead SOIC package.

Learn Moreabout Analog Devices Inc. EVAL-ADA4620-1 Evaluation Board View Productsrelated to Analog Devices Inc. EVAL-ADA4620-1 Evaluation Board

Analog Devices Inc. EVAL-ADA4620-2 Evaluation Board

Enables quick prototyping and includes provisions for photodiode configurations and filter design.

Learn Moreabout Analog Devices Inc. EVAL-ADA4620-2 Evaluation Board View Productsrelated to Analog Devices Inc. EVAL-ADA4620-2 Evaluation Board
Paskelbta: 2025-01-15 | Atnaujinta: 2025-02-24