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ADA4622-2ARMZ
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Product Detailed Parameters
- Description：IC OPAMP JFET 2 CIRCUIT 8MSOP
- 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-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-MSOP
- -3db Bandwidth：15.5 MHz
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Overview
The ADA4622-2ARMZ is a dual-channel precision operational amplifier from Analog Devices, serving as the next-generation successor to the AD822. It features JFET inputs with low bias current and rail-to-rail output capability. Key electrical parameters include an 8 MHz gain bandwidth product, a typical slew rate of 23 V/µs, and a maximum input offset voltage of ±0.35 mV (B grade). The device operates on supply voltages ranging from 5 V to 30 V and supports an extended industrial temperature range of -40°C to +125°C.
Feature Summary
- Next-generation upgrade for legacy AD822 devices with improved DC precision and noise performance
- JFET input stage providing low input bias current and high input impedance
- Rail-to-rail output swing maximizing dynamic range in single-supply applications
- Integrated input EMI filters enhancing signal robustness against switching noise
Applications
- High output impedance sensor interfaces
- Photodiode sensor interfaces
- Transimpedance amplifiers
- ADC drivers
- Precision filters and signal conditioning
Procurement Notes
Verify the specific ordering suffix ARMZ corresponds to the 8-lead Mini Small Outline Package (MSOP) variant. Confirm that the B grade offset voltage specifications are required for the design, as A grade options exist within the same family. Ensure the selected package matches the PCB footprint requirements for the MSOP form factor.
Selection Notes
Select this component when upgrading from AD822 circuits to benefit from reduced offset voltage and drift. It is suitable for applications requiring rail-to-rail output swing and low bias currents. Consider the dual-channel configuration for cost-effective space-constrained designs compared to using two single-channel units.
Part Context
This part belongs to the ADA4622-1/ADA4622-2/ADA4622-4 family of precision op amps. The '2' indicates a dual-channel configuration, while 'ARMZ' specifies the 8-lead MSOP package. These devices are designed to replace older AD82x series parts while offering enhanced speed, lower noise, and better DC accuracy.
Replacement Considerations
Direct pin-compatible replacements include the legacy AD822. Other members of the ADA4622 family, such as ADA4622-1 or ADA4622-4, offer single or quad channel variants respectively but require different footprints.
