AD8674ARZ-REEL7

Overview

The AD8674ARZ-REEL7 is a quad precision operational amplifier from Analog Devices, packaged in a 14-lead SOIC_N (R-14) and supplied in a tape-and-reel format. It features a gain-bandwidth product of 10 MHz, a slew rate of 4 V/µs, and an input voltage noise density of 2.8 nV/√Hz. The device operates on dual supplies ranging from ±5 V to ±15 V with a maximum supply voltage of 36 V. It draws a typical supply current of 3 mA per amplifier and functions within an industrial temperature range of −40°C to +85°C.

Feature Summary

• Quad configuration providing four independent low-noise amplifiers in a single package.
• Unity-gain stable design that maintains stability without external compensation components.
• Capacitive load drive capability ensuring stable operation when driving loads exceeding 1000 pF.
• No phase reversal characteristic allowing the input voltage to exceed the supply rails by up to 1 V.

Applications

• PLL synthesizers and loop filters
• GPS receiver band-pass and low-pass filters
• Precision power supply controls
• Data acquisition systems

Procurement Notes

Verify the specific ordering suffix REEL7 confirms the tape-and-reel packaging format required for automated assembly processes. Ensure the component meets RoHS compliance standards as indicated by the Z suffix in the part number. Confirm the operating temperature range aligns with the specified industrial limits of −40°C to +85°C for your target application environment.

Selection Notes

Select this component when multiple high-precision channels are required within a compact footprint. The quad architecture reduces board space compared to using individual single-channel amplifiers. Consider the 10 MHz bandwidth and low noise specifications for applications requiring accurate signal processing at moderate frequencies.

Part Context

This device belongs to the AD8671/AD8672/AD8674 family of very low noise, low input bias current operational amplifiers manufactured by Analog Devices. While the AD8671 offers a single channel and the AD8672 provides two channels, the AD8674 integrates four identical amplifiers into one unit. All members share similar electrical characteristics regarding noise, bandwidth, and precision.

Replacement Considerations

The AD8674ARU serves as a pin-compatible alternative utilizing a 14-lead TSSOP package instead of the SOIC_N form factor. Other quad precision amplifiers such as the ADA4091-4 or OP4177 may be considered if lower noise performance is not critical.

FAQ

Does the AD8674 exhibit output phase reversal?

No, the AD8674 does not exhibit output phase reversal even when the input voltage exceeds the positive supply rail by approximately 1 V.

What is the maximum capacitive load the amplifier can drive stably?

The outputs are stable with capacitive loads of over 1000 pF without requiring additional external compensation circuitry.