AD8630WARZ-RL

Overview

The AD8630WARZ-RL is a quad zero-drift operational amplifier from Analog Devices, featuring rail-to-rail input and output capabilities. It operates on a single supply voltage ranging from 2.7 V to 5.5 V or dual supplies of ±1.35 V to ±2.75 V. Key electrical specifications include a maximum offset voltage of 1 µV at 25°C and 10 µV across the temperature range, with an input bias current of up to 300 pA. The device offers a gain-bandwidth product of 2.5 MHz, a common-mode rejection ratio of 140 dB, and a power supply rejection ratio of 130 dB. It is housed in a 14-lead SOIC package and qualified for automotive applications.

Feature Summary

• Utilizes patented auto-zeroing and chopping topology to eliminate 1/f noise and maintain ultralow offset drift over temperature.
• Provides rail-to-rail input and output swing without requiring external components or phase reversal protection.
• Features rapid overload recovery time due to internal settling within two clock cycles after output saturation.
• Delivers low peak-to-peak noise performance suitable for high-resolution systems without additional filtering.

Applications

• Automotive sensors
• Pressure and position sensors
• Strain gage amplifiers
• Medical instrumentation
• Thermocouple amplifiers

Procurement Notes

Verify the specific ordering suffix RL indicates reel packaging when sourcing. Confirm that the W suffix denotes automotive qualification status required for your application environment. Ensure compatibility with the 14-lead SOIC footprint during PCB layout. Check for RoHS compliance documentation if environmental regulations apply to your manufacturing process.

Selection Notes

Select this component when system requirements demand minimal DC error sources such as offset voltage and drift. Consider its rail-to-rail characteristics for maximizing signal-to-noise ratio in single-supply designs. Evaluate the 2.5 MHz bandwidth against your signal frequency needs. Verify that the 14-lead package fits within your available board space constraints compared to other channel counts.

Part Context

This part belongs to the AD8628/AD8629/AD8630 family of zero-drift amplifiers. While the AD8628 is a single-channel device and the AD8629 is dual-channel, the AD8630 integrates four channels in a single package. All members share the same underlying auto-zero/chop technology and electrical performance characteristics defined in the shared datasheet.

Replacement Considerations

The AD8630ARZ-REEL serves as a commercial grade alternative with identical pinout and specifications but lacks automotive qualification. Other family members like the AD8629 offer fewer channels but share similar electrical traits. Verify package dimensions and thermal characteristics when substituting.