AD8607ARMZ-REEL

Overview

The AD8607ARMZ-REEL is a dual-channel precision operational amplifier from Analog Devices, featuring rail-to-rail input and output capabilities. It operates on a single supply of 1.8 V to 5 V or dual supplies of ±0.9 V to ±2.5 V. Key electrical specifications include a maximum offset voltage of 50 µV, a maximum input bias current of 1 pA, and a typical voltage noise density of 25 nV/√Hz at 1 kHz. The device consumes 40 µA per amplifier with a gain bandwidth product of 400 kHz and a slew rate of 0.1 V/µs. It is housed in an 8-lead MSOP package.

Feature Summary

• Patented trimming technique achieves superior precision without laser adjustment
• Rail-to-rail input and output swing capability for wide dynamic range
• No phase reversal even when input exceeds common-mode voltage limits
• Unity gain stable design suitable for direct buffering applications

Applications

• Battery-powered instrumentation systems
• Multipole filter circuits
• Precision sensor signal conditioning
• Low power ASIC input or output amplifiers
• Photodiode transimpedance amplification

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape-and-reel quantity. Ensure the component meets RoHS compliance requirements if mandated by your manufacturing standards. Cross-reference the part number with the latest datasheet revision to confirm all electrical parameters remain unchanged.

Selection Notes

Select this component for designs requiring low power consumption alongside high precision in portable devices. The rail-to-rail I/O feature maximizes dynamic range in single-supply systems. Consider the 8-lead MSOP package for space-constrained layouts while ensuring adequate thermal management within the specified operating temperature range.

Part Context

This device belongs to the AD8603/AD8607/AD8609 family of micro-power, low-noise CMOS operational amplifiers. The AD8607 specifically provides two independent channels in an 8-lead package, sharing core technologies like patented trimming and rail-to-rail operation with its single-channel (AD8603) and quad-channel (AD8609) counterparts.

Replacement Considerations

Official substitutes within the same family include the AD8603AUJZ-R2, AD8603AUJZ-REEL, AD8603AUJZ-REEL7, AD8607ARMZ, AD8607ARMZ-REEL, AD8607ARZ, AD8607ARZ-REEL, and AD8607ARZ-REEL7.

FAQ

Does the AD8607 exhibit phase reversal when the input voltage exceeds the common-mode range?

No, the AD8607 does not exhibit phase inversion even when the input voltage exceeds the maximum input common-mode voltage, handling voltages up to 1 V over the supply.

What is the recommended protection method for input overvoltage conditions?

If a voltage 1 V higher than the supplies is applied, a limiting series resistor is recommended to keep the current below 5 mA, calculated using the formula (VIN − VS)/(RS + 200 Ω) ≤ 5 mA.

How does the AD8607 perform when driving capacitive loads?

The device can drive large capacitive loads without oscillating. For unity gain configurations, a snubber network is recommended to eliminate ringing and overshoot when driving loads such as 2 nF capacitors.