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ADA4622-2ARZ
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Product Detailed Parameters
- Description：IC OPAMP JFET 2 CIRCUIT 8SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Amplifier Type：J-FET
- Number of Circuits：2
- Output Type：Rail-to-Rail
- Slew Rate：23V/µs
- Gain Bandwidth Product：8 MHz
- Current - Input Bias：2 pA
- Voltage - Input Offset：40 µV
- Current - Supply：665µA (x2 Channels)
- Current - Output / Channel：20 mA
- Voltage - Supply Span (Min)：5 V
- Voltage - Supply Span (Max)：30 V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- -3db Bandwidth：15.5 MHz
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Overview
The ADA4622-2ARZ is a dual-channel, precision JFET input operational amplifier from Analog Devices. It operates on a single supply of 5 V to 30 V or dual supplies of ±2.5 V to ±15 V. Key electrical parameters include an 8 MHz gain bandwidth product and a typical slew rate of 23 V/µs. The device features low input bias current (±10 pA max) and rail-to-rail output capability. Input voltage range includes the negative supply rail. It is specified for operation over an extended industrial temperature range of −40°C to +125°C.
Feature Summary
- Next-generation upgrade to AD822 with improved DC precision and lower noise
- Rail-to-rail output with input common-mode range including the negative supply
- Integrated input EMI filters for enhanced signal robustness near switching noise sources
- Low input bias current suitable for high-impedance sensor interfaces
Applications
- High output impedance sensor interfaces
- Photodiode sensor interfaces
- Transimpedance amplifiers
- ADC drivers
- Precision filters and signal conditioning
Procurement Notes
Verify the specific grade (A or B) required for offset voltage and drift specifications during procurement. Confirm package availability as the ARZ suffix denotes the SOIC-8 package. Ensure compatibility with existing PCB footprints when replacing legacy AD822 components. Check datasheet revision for updated thermal resistance values relevant to your board design.
Selection Notes
Select the ADA4622-2ARZ for applications requiring single-supply operation with rail-to-rail output swing. Choose this component over standard op amps when low input bias current and high CMRR are critical for signal integrity. Consider the A or B grade based on strict offset voltage and drift requirements. Verify that the 8 MHz bandwidth meets the system's frequency response needs.
Part Context
The ADA4622-2ARZ belongs to the ADA4622 family, which serves as the next generation of the AD820/AD822/AD824 series. It retains industry-standard pinouts while offering improvements in speed, noise, and DC precision. The dual-channel configuration in an 8-lead SOIC package makes it suitable for space-constrained designs requiring two precision amplifiers.
Replacement Considerations
The ADA4622-2ARZ is designed as a direct drop-in replacement for the AD822. Verify that the legacy part's performance limits meet the new device's specifications. No external pull-up resistors are needed due to the rail-to-rail output stage.
