ADA4700-1

RECOMMENDED FOR NEW DESIGNS

100 V, Precision Operational Amplifier

Data Sheet (Rev. 0) Product Selection Table
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Overview

  • Low input offset voltage:
    ≤0.2 mV typical 
  • High output current drive:
    30 mA 
  • Wide range of operating voltage: ±5 V to ±50 V 
  • High slew rate: 20 V/μs typical 
  • High gain bandwidth product:
    3.5 MHz typical 
  • Thermal regulation at junction temperature >145°C 
  • Ambient temperature range of
    -40° C to +85° C 
  • Low input bias current
    ≤ 15 nA typical 

The ADA4700-1 is a high voltage, precision, single-channel operational amplifier with a wide operating voltage range (±5 V to ±50 V) and relatively high output current drive. Its advanced design combines low power (170 mW for a ±50 V supply), high bandwidth (3.5 MHz), and a high slew rate with unity-gain stability and phase inversion free performance. The ability to swing near rail to rail at the output enables designers to maximize signal-to-noise ratios (SNRs).

The ADA4700-1 is designed for applications requiring both ac and dc precision performance, making the ADA4700-1 useful in a wide variety of applications, including high voltage test equipment and instrumentation, high voltage regulators and power amplifiers, power supply control and protection, and as an amplifier or buffer for transducers with wide output ranges. It is particularly well suited for high intensity LED testing applications where it provides highly accurate voltage and current feedback as well as a predriver to provide accurate voltage and/or current sourcing stimulus to the LED string under test.

The ADA4700-1 is specified over the industrial temperature range of −40°C to +85°C and includes thermal regulation at a junction temperature greater than 145°C and an integrated current limit. The ADA4700-1 is available in a thermally enhanced, 8-lead SOIC package with an exposed pad.

APPLICATIONS

  • Automated and bench top test equipment
  • High-voltage regulators and power amplifiers
  • Data acquisition and signal conditioning
  • Piezo drivers and predrivers
  • General-purpose current sensing
ADA4700-1
100 V, Precision Operational Amplifier
ADA4700-1-pcl
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Documentation

Data Sheet 1

User Guide 1

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Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • ADA4700-1

Analog Photodiode Wizard

Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.

Open Tool

Signal Chain Designer

Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.

Open Tool

Analog Filter Wizard

Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.

Open Tool

SPICE Model 1

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

EVAL-ADA4700-1

ADA4700-1 EVALUATION BOARD

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Product Details

The EVALPRAHVOPAMP-1RZ is an evaluation board for the ADA4700-1 that accommodates single op amps in SOIC packages. It provides the user with multiple choices and extensive flexibility for different applications circuits and configurations. Reference user guide for additional information UG-670.
EVAL-ADA4700-1
ADA4700-1 EVALUATION BOARD

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