AD822A Rail-to-Rail Low Power FET-Input OP Amp SOP8

Description

Product Title

AD822A Rail-to-Rail Low Power FET-Input Operational Amplifier – SOP-8 Package

Overview

The AD822A is a precision, low-power dual operational amplifier featuring FET-input stages, rail-to-rail output swing, and excellent DC performance. Designed for both single-supply and dual-supply operation, it offers low input bias current, low offset voltage, and low power consumption, making it suitable for precision signal conditioning and sensor interface applications.

Packaged in an SOP-8 form factor, the AD822A is widely used in instrumentation, active filters, data acquisition systems, and battery-powered electronics.

Key Features

• Dual precision operational amplifier
• FET-input architecture
• Rail-to-rail output swing
• Low power consumption
• Low input bias current
• Low offset voltage
• Single-supply or dual-supply operation
• High input impedance
• SOP-8 surface-mount package
• Suitable for precision analog signal processing

Technical Specifications

Amplifier Type

• Device: AD822A
• Amplifier Channels: 2 (Dual Op-Amp)
• Input Type: FET Input
• Output Type: Rail-to-Rail

Supply Voltage

• Single Supply: 5V to 30V
• Dual Supply: ±2.5V to ±15V

Performance

• Unity Gain Bandwidth: 1.8 MHz (typical)
• Slew Rate: 3 V/µs (typical)
• Input Bias Current: 25 pA (maximum)
• Input Offset Voltage: 800 µV (maximum)
• Input Noise Density: 13 nV/√Hz @ 10 kHz
• Quiescent Current: 800 µA per amplifier (maximum)

Output Characteristics

• Rail-to-rail output operation
• Output current capability up to 15 mA minimum
• Capacitive load drive up to 350 pF (unity gain)

Package

• Package Type: SOP-8
• Mounting Type: Surface Mount (SMD)

Power & Programming

• No programming required
• Supports single-supply and dual-supply analog designs
• Suitable for battery-powered and low-power systems
• Compatible with 3.3V, 5V, and higher-voltage analog circuits within specified operating limits

Applications

• Sensor signal conditioning
• Precision instrumentation
• Active filters
• Photodiode amplifiers
• Data acquisition systems
• Medical instrumentation
• Battery-powered electronics
• Precision voltage references and regulators
• Industrial analog interfaces

What’s Included

• 1x AD822A Dual FET-Input Operational Amplifier (SOP-8)

Notes

• This is a surface-mount SOP-8 device and requires SMD soldering.
• Input voltage range extends below ground when operated from a single supply.
• Verify supply voltage and package marking before use.
• Suitable for high-impedance sensor applications due to its extremely low input bias current.