AD620B

Product Overview

AD620B is commonly associated with Analog Devices AD620B, a low-cost, high-accuracy instrumentation amplifier designed for precision signal conditioning applications. The device requires only one external resistor to set gain from 1 to 10,000, making it easy to use in sensor and measurement circuits. With low offset voltage, low input bias current, low noise, low power consumption and wide supply voltage operation, it is suitable for weigh scales, transducer interfaces, ECG equipment, data acquisition systems and battery-powered precision instrumentation.

Key Features

• Manufacturer: Analog Devices

• Part Number: AD620B

• Device Type: Instrumentation amplifier

• Product Category: Linear IC / precision amplifier

• Amplifier Channels: 1 channel

• Gain Setting: Gain set with one external resistor

• Gain Range: 1 to 10,000

• Supply Voltage Range: ±2.3V to ±18V

• Supply Current: 1.3mA maximum

• Input Offset Voltage: 50µV maximum for B grade

• Offset Drift: 0.6µV/°C maximum for B grade

• Nonlinearity: 40ppm maximum

• Input Bias Current: 1.0nA maximum

• Input Voltage Noise: 9nV/√Hz typical at 1kHz

• Low-Frequency Noise: 0.28µV p-p typical from 0.1Hz to 10Hz

• Settling Time: 15µs to 0.01% commonly specified

• Package Options: 8-lead DIP and 8-lead SOIC versions available depending on full ordering code

• Pin Count: 8 pins

• Mounting Type: Through-hole or surface mount depending on package suffix

• Grade: B grade precision specification

• Typical Use: Precision sensor amplification, bridge sensors, medical instrumentation and data acquisition systems

• Key Features: High accuracy, low noise, low power, single-resistor gain setting and wide supply voltage range

• Datasheet PDF: https://www.analog.com/media/en/technical-documentation/data-sheets/ad620.pdf

• Product Page: https://www.analog.com/en/products/ad620.html

• Ordering / Packaging Note: Buyers should verify the full Analog Devices ordering suffix, package type, grade, temperature range, top marking, lead finish, RoHS status and packaging format before production use.

Applications

AD620B can be used in precision analog systems that require accurate amplification of small differential signals. Typical applications include weigh scales, bridge sensor interfaces, pressure transducers, strain gauge amplifiers, ECG monitors, noninvasive blood pressure monitors, data acquisition systems, industrial instrumentation, battery-powered measurement devices, process control equipment and repair projects. It is also suitable for BOM review where an Analog Devices precision instrumentation amplifier with gain set by one external resistor is required.

Quality & Sourcing

Antrex Electronics can support AD620B sourcing with stock availability checks, RFQ quotation, package confirmation, date code review and shipment arrangement. For project-based purchasing, buyers can provide quantity, target price, required ADI suffix, package type, grade, date code, packaging requirements and application information for faster quotation support.

For quality control, Antrex Electronics can help arrange product photos, label review, visual inspection, pin inspection and third-party testing support when required. OEMs, EMS providers, medical electronics manufacturers, industrial equipment suppliers, repair centers and electronic component buyers are welcome to send BOM lists or hard-to-find amplifier IC requests for sourcing assistance.