AD8513

PRODUCTION

Precision, Very Low Noise, Low Input Bias Current, Wide Bandwidth JFET Quad Operational Amplifier

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Overview

  • Fast settling time: 500 ns to 0.1%
  • Low offset voltage: 400 μV maximum
  • Low TCVOS: 1 μV/°C typical
  • Low input bias current: 25 pA typical at VS = ±15 V
  • Dual-supply operation: ±5 V to ±15 V
  • Low noise: 8 nV/√Hz typical at f = 1 kHz
  • Low distortion: 0.0005%
  • No phase reversal
  • Unity-gain stable

The AD8510/AD8512/AD8513 are single-, dual-, and quad-precision JFET amplifiers that feature low offset voltage, input bias current, input voltage noise, and input current noise.

The combination of low offsets, low noise, and very low input bias currents makes these amplifiers especially suitable for high impedance sensor amplification and precise current measurements using shunts. The combination of dc precision, low noise, and fast settling time results in superior accuracy in medical instruments, electronic measurement, and automated test equipment. Unlike many competitive amplifiers, the AD8510/AD8512/AD8513 maintain their fast settling performance even with substantial capacitive loads. Unlike many older JFET amplifiers, the AD8510/AD8512/AD8513 do not suffer from output phase reversal when input voltages exceed the maximum common-mode voltage range.

Fast slew rate and great stability with capacitive loads make the AD8510/AD8512/AD8513 a perfect fit for high performance filters. Low input bias currents, low offset, and low noise result in a wide dynamic range of photodiode amplifier circuits. Low noise and distortion, high output current, and excellent speed make the AD8510/AD8512/AD8513 great choices for audio applications.

The AD8510/AD8512 are both available in 8-lead narrow SOIC_N and 8-lead MSOP packages. MSOP-packaged devices are only available in tape and reel. The AD8513 is available in 14-lead SOIC_N and TSSOP packages.

The AD8510/AD8512/AD8513 are specified over the −40°C to +125°C extended industrial temperature range.

Applications

  • Instrumentation
  • Multipole filters
  • Precision current measurement
  • Photodiode amplifiers
  • Sensors
  • Audio

AD8513

Precision, Very Low Noise, Low Input Bias Current, Wide Bandwidth JFET Quad Operational Amplifier

AD8513 Pin Configuration AD8513 Pin Configuration
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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
ADA4610-4 RECOMMENDED FOR NEW DESIGNS Low Noise, Precision, Rail-to-Rail Output, JFET Quad Op Amplifiers
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Tools & Simulations

LTspice


Models for the following parts are available in LTspice:

  • AD8513

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-OPAMP-4

EVAL-OPAMP-4 Evaluation Board

Product Details

The Universal Precision Op Amp Evaluation Boards has been designed and optimized for many circuit configurations allowing the users to best suit their applications. These boards are all RoHs Compliant. See references below on what board to order by lead count and package.

  • EVAL-PRAOPAMP-4RUZ (Quad 14-Lead TSSOP) RU-14
  • EVAL-PRAOPAMP-4RZ (Quad 14-Lead SOIC) R-14

EVAL-OPAMP-4
EVAL-OPAMP-4 Evaluation Board

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