AD8617

PRODUCTION

Low Cost Micropower, Low Noise CMOS RRIO Dual Op Amp

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Overview

  • Offset voltage: 2.2 mV maximum
  • Low input bias current: 1 pA maximum
  • Single-supply operation: 1.8 V to 5.5 V
  • Low noise: 22 nV/√Hz
  • Micropower: 50 μA/amplifier maximum over temperature
  • No phase reversal
  • Unity gain stable
  • Qualified for automotive applications

The AD8613 / AD8617 / AD8619 are single, dual, and quad micropower, rail-to-rail input and output amplifiers that feature low supply current, as well as low input voltage and current noise. The parts are fully specified to operate from 1.8 V to 5 V single supply, or ±0.9 V and ±2.5 V dual supply. The combination of low noise, very low input bias currents, and low power consumption make the AD8613 / AD8617 / AD8619 especially useful in portable and loop-powered instrumentation.

The ability to swing rail-to-rail at both the input and output enables designers to buffer CMOS ADCs, DACs, ASICs, and other wide output swing devices in low power, single-supply systems.

The AD8613 is available in a 5-lead SC70 package and a 5-lead TSOT-23 package. The AD8617 is available in 8-lead MSOP, 8-lead SOIC, and 8-lead LFCSP packages. The AD8619 is available in 14-lead TSSOP and 14-lead SOIC packages. The AD8617W is qualified for automotive applications and is available in 8-lead MSOP and 8-lead SOIC packages. The AD8619W is qualified for automotive applications and is available in 14-lead SOIC and 14-lead TSSOP packages.

Applications

  • Battery-powered instrumentation
  • Multipole filters
  • Current shunt sense
  • Sensors
  • ADC predrivers
  • DAC drivers/level shifters
  • Low power ASIC input or output amplifiers

AD8617
Low Cost Micropower, Low Noise CMOS RRIO Dual Op Amp
AD8617 Pin Configuration AD8617 Pin Configuration
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Software Resources

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Tools & Simulations

LTspice


Models for the following parts are available in LTspice:

  • AD8617

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 board
EVAL-OPAMP-2

EVAL-OPAMP-2 Evaluation Board

Product Details

The universal precision op amp evaluation boards have 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-2CPZ (dual 8-lead LFCSP) CP-8
  • EVAL-PRAOPAMP-2RMZ (dual 8-lead MSOP) RM-8
  • EVAL-PRAOPAMP-2RZ (dual 8-lead SOIC) R-8

EVAL-OPAMP-2
EVAL-OPAMP-2 Evaluation Board
EVAL-OPAMP-2 EVAL-OPAMP-2 EVAL-OPAMP-2

Reference Designs

Universal Programmable Analog Front End for Process Control Applications
CN0209 Circuits from the lab

Fully Programmable Universal Analog Front End for Process Control Applications

Features and Benefits

  • Complete Analog front end for Process Control
  • Inputs include RTD, thermocouple, 4-20 mA, +/- 10V
  • Easily switch between the various input types
CN0209
Fully Programmable Universal Analog Front End for Process Control Applications
Universal Programmable Analog Front End for Process Control Applications

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