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AD8066ARZ

AD8066ARZ

Analog Devices
Dual-channel version of the AD8065 for applications that need two matched high-speed voltage-feedback amplifiers in one package.
NRND9,500 in stock
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Overview

The AD8066ARZ is a dual-channel, high-speed FastFET amplifier designed for high performance in a compact 8-SOIC package. It combines a 155 MHz bandwidth with a 180V/us slew rate, making it suitable for driving high-speed signals while maintaining a low supply current of 6.6mA per channel. The FET input stage provides an extremely low input bias current of 3 pA, which is critical for high-impedance sensor interfaces.

Why Choose This Part

The AD8066ARZ offers a wide supply voltage range up to 24V, providing significant headroom for signal processing. Its FastFET technology ensures low noise and high speed without the phase reversal issues common in other FET amplifiers. The rail-to-rail output swing maximizes dynamic range in systems with limited power rails.

Applications

Photodiode Preamp
The ultra-low 3 pA input bias current makes it ideal for converting small currents from optical sensors into measurable voltages.
High-Speed Filter Buffering
Utilizes the 155 MHz bandwidth to buffer active filters without introducing significant phase shift or distortion.
ADC Driving
The rail-to-rail output and fast settling time allow it to drive the inputs of high-speed analog-to-digital converters efficiently.
Instrumentation Front-Ends
Provides high input impedance and wide dynamic range for precision measurement equipment.

Key Specifications

Slew Rate 180V/us
Output Type Rail-to-Rail
Mounting Type Surface Mount
-3db Bandwidth 155 MHz
Amplifier Type Voltage Feedback
Package / Case 8-SOIC (0.154", 3.90mm Width)
Current - Supply 6.6mA (x2 Channels)
Number of Circuits 2
Current - Input Bias 3 pA
Operating Temperature -40degC ~ 85degC
Voltage - Input Offset 400 uV
Supplier Device Package 8-SOIC
Current - Output / Channel 30 mA
Voltage - Supply Span (Max) 24 V
Voltage - Supply Span (Min) 5 V

Getting Started

When designing with this part, ensure a low-impedance ground plane is used and place 0.1uF ceramic bypass capacitors as close as possible to the supply pins to maintain stability at 155 MHz. Use short trace lengths at the inverting input to minimize parasitic capacitance. Evaluation can be performed using generic SOIC-8 breakout boards or high-speed op-amp prototyping platforms.

Also Consider

AD8065ARZ Analog Devices - The single-channel version of this amplifier for designs where space or channel isolation is more critical than circuit density.