ADA4622-2

RECOMMENDED FOR NEW DESIGNS

30 V, 7.5 MHz, Low Bias Current, Single Supply, RRO, Precision Op Amp

Data Sheet (Rev. F) Product Selection Table
Part Models
11
1ku List Price
Starting From $2.32
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Part Details

  • Next generation of the AD820/AD822/AD824
  • Wide gain bandwidth product: 8 MHz typical
  • High slew rate
    • 23V/µs typical (low to high)
    • −18V/µs typical (high to low)
  • Low input bias current: ±10 pA maximum at TA = 25°C
  • Low offset voltage
    • A grade: ±0.8 mV maximum at TA = 25°C
    • B grade: ±0.35 mV maximum at TA = 25°C
  • Low offset voltage drift
    • A grade: ±4 μV/°C maximum
    • B grade: ±2 μV/°C maximum (ADA4622-2 only)
    • B grade: ±1 μV/°C maximum (ADA4622-1 only)
  • Input voltage range includes Pin V−
  • Rail-to-rail output
  • Electromagnetic interference rejection ratio (EMIRR)
    • 90 dB typical at f = 1000 MHz and f = 2400 MHz
  • Industry-standard package and pinout
ADA4622-2

30 V, 7.5 MHz, Low Bias Current, Single Supply, RRO, Precision Op Amp

ADA4622-2 Pin Configuration ADA4622-2 Pin Configuration ADA4622-2 Pin Configuration ADA4622-2 Pin Configuration
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Documentation

Data Sheet 1

Application Note 2

Technical Articles 1

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Hardware Ecosystem
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Modify Design LTspice Simulation
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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • ADA4622

Signal Chain Designer - BETA

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

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

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
schematic 1
schematic 2
schematic 3
EVAL-OPAMP-2

EVAL-OPAMP-2 Evaluation Board

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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 board
schematic 4
EVAL-ADA4622-2

ADA4622-2 Evaluation Board 

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Features and Benefits

  • Full featured evaluation board for dual low bias current amplifiers in narrow-body SOIC
  • Enables quick prototyping
  • User defined circuit configuration
  • Edge mounted SMA connector provisions
  • Easy connection to test equipment and other circuits
  • Available provision for photodiode for quick evaluation
    • Connections available for photodiode bias
    • Guard trace available to minimize leakage

Product Details

This user guide describes the EVAL-ADA4622-2ARZ evaluation board, which allows users to test the ADA4622-2 but can also be used for other dual, low bias current amplifiers that come in an 8-lead standard small outline package (SOIC_N). The design of this evaluation board emphasizes simplicity and ease of use. Provisions are available on the board to interface easily to test equipment.

The EVAL-ADA4622-2ARZ uses a combination of surfacemount technology (SMT) in Case Size 0603, with the exception of bypass capacitors and termination resistors. The EVAL-ADA4622-2ARZ evaluation board also features a variety of unpopulated resistor and capacitor pads that provide the user with multiple choices and extensive flexibility for different application circuits.

The evaluation board also has a provision for photodiode sensors, allowing easy configuration of a transimpedance amplifier (TIA). The layout is optimized with provisions for guarding to ensure low leakage and low parasitic capacitance for TIA applications.

Full specifications of the ADA4622-2 can be found in the ADA4622-2 data sheet, available from Analog Devices, which must be consulted in conjunction with this user guide when using the EVAL-ADA4622-2ARZ.
EVAL-OPAMP-2
EVAL-OPAMP-2 Evaluation Board
EVAL-OPAMP-2 EVAL-OPAMP-2 EVAL-OPAMP-2
EVAL-ADA4622-2
ADA4622-2 Evaluation Board 
EVAL-ADA4622-2ARZ

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