ADA4622-4 Precision Op-Amp: Features, Pinout and Datasheet

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The ADA4622-4 is the next generation of the AD824 single-supply, rail-to-rail output (RRO), precision junction field effect transistors (JFET) input op amp. The ADA4622-4 includes many improvements that make it desirable as upgrades without compromising the flexibility and ease of use that makes the AD824 useful for a wide variety of applications. The ADA4622-4 is 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 ADA4622-4 is available in a 14-lead SOIC_N and a 16-lead, 4 × 4 mm LFCSP.

This article provides you with a basic overview of the ADA4622-4 Precision Op-Amp, including its pin descriptions, features and specifications, etc., to help you quickly understand what ADA4622-4 is.

● Next generation of the AD824

● Wide gain bandwidth product: 8 MHz typical

● High slew rate

   ◆ 23 V/µs typical (low to high)

   ◆ −18 V/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: ±2 µV/°C typical, ±15 µV/°C maximum

   ◆ B grade: ±2 µV/°C typical, ±5 µV/°C maximum

● 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 pinouts

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 devicesto drive the inputs of modern singleended, successive approximation register (SAR) analog-todigital converters (ADCs). Voltage noise is reduced; although the supply current remains the same as the AD824, broadband noise is reduced by 25%, and 1/f is reduced by half. DC precision in the ADA4622-4 improved from the AD824 with half the offset and a maximum thermal drift specification added to the ADA4622-4. The common-mode rejection ratio (CMRR) is improved from the AD824 to make the ADA4622-4 more suitable when used in noninverting gain and difference amplifier configurations.

Analog Devices Inc. ADA4622-4ARZ technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. ADA4622-4ARZ.

Simplified Circuit Diagram

● High output impedance sensor interfaces

● Photodiode sensor interfaces

● Transimpedance amplifiers

● ADC drivers

● Precision filters and signal conditioning

14-Lead Standard Small Outline Package [SOIC_N]

Analog Devices (NASDAQ: ADI) is a world leader in the design, manufacture, and marketing of a broad portfolio of high performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs) used in virtually all types of electronic equipment. Since our inception in 1965, we have focused on solving the engineering challenges associated with signal processing in electronic equipment. Used by over 100,000 customers worldwide, our signal processing products play a fundamental role in converting, conditioning, and processing real-world phenomena such as temperature, pressure, sound, light, speed, and motion into electrical signals to be used in a wide array of electronic devices.