ADA4622-1

RECOMMENDED FOR NEW DESIGNS

30 V, 8 MHz, Low Bias Current, Single-Supply, RRO, Precision Op Amps

Data Sheet (Rev. F) Product Selection Table

Part Models: 9
1ku List Price: Starting From $1.49

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Overview

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 T_A = 25°C
Low offset voltage
- A grade: ±0.8 mV maximum at T_A = 25°C
- B grade: ±0.35 mV maximum at T_A = 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

The ADA4622-1/ADA4622-2/ADA4622-4 are the next generation of the AD820/AD822/AD824 single-supply, rail-to-rail output (RRO), precision junction field effect transistors (JFET) input op amps. The ADA4622-1/ADA4622-2/ADA4622-4 include many improvements that make them desirable as upgrades without compromising the flexibility and ease of use that makes the AD820/AD822/AD824 useful for a wide variety of applications.

The input voltage range includes the negative supply and the output swings rail-to-rail. Input EMI filters increase the signal robustness in the face of closely located switching noise sources.

The speed, in terms of bandwidth and slew rate, increases along with a strong output drive to improve settling time performance and enables the devices to drive the inputs of modern single-ended, successive approximation register (SAR) analog-to-digital converters (ADCs).

Voltage noise is reduced; although the supply current remains the same as the AD820/AD822/AD824, broadband noise is reduced by 25%, and 1/f is reduced by half. DC precision in the ADA4622-1/ADA4622-2/ADA4622-4 improved from the AD820/AD822/AD824 with half the offset and a maximum thermal drift specification added to the ADA4622-1/ADA4622-2/ADA4622-4. The common-mode rejection ratio (CMRR) is improved from the AD820/AD822/AD824 to make the ADA4622-1/ADA4622-2/ADA4622-4 more suitable when used in noninverting gain and difference amplifier configurations.

The ADA4622-1/ADA4622-2/ADA4622-4 are specified for operation over the extended industrial temperature range of −40°C to +125°C, and operate from 5 V to 30 V, with specifications at +5 V, ±5 V, and ±15 V. The ADA4622-1 is available in a 5-lead SOT-23 package and an 8-lead LFCSP package. The ADA4622-2 is available in an 8-lead SOIC_N package, an 8-lead MSOP package, and an 8-lead LFCSP package. The ADA4622-4 is available in a 14-lead SOIC_N and a 16-lead, 4 × 4 mm LFCSP.

APPLICATIONS

High output impedance sensor interfaces
Photodiode sensor interfaces
Transimpedance amplifiers
ADC drivers
Precision filters and signal conditioning

Part Models: 9
1ku List Price: Starting From $1.49

Documentation

Data Sheet 1

ADA4622-1/ADA4622-2/ADA4622-4: 30 V, 8 MHz, Low Bias Current, Single-Supply, RRO, Precision Op Amps Data Sheet (Rev.F) 08/25/2015

Technical Articles 1

When Good Electrons Go Bad: How to Protect Your Analog Front End 01/01/2019

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADA4622-1ARJZ-R2	5-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADA4622-1ARJZ-R7	5-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADA4622-1ARJZ-RL	5-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADA4622-1ARZ	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADA4622-1ARZ-R7	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADA4622-1ARZ-RL	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADA4622-1BRZ	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADA4622-1BRZ-R7	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADA4622-1BRZ-RL	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Wideband Photodiode Preamplifier

Modify Design LTspice Simulation
Photodiode Transimpedance Amplifier

Modify Design LTspice Simulation

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

ADA4622

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

ADA4622 SPICE Macro Model

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-1 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.