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AD8065ARZ

AD8065ARZ

Analog Devices
A low-noise, high-speed voltage-feedback op amp commonly used in video and high-speed data acquisition circuits.
NRND2,414 in stock
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Overview

The AD8065ARZ is a single-channel, voltage-feedback operational amplifier optimized for low-noise, high-speed applications. It offers a high slew rate (180 V/us) and wide small-signal bandwidth (about 145 MHz) with rail-to-rail output capability on single-supply systems. The device has very low input bias current and low input offset, making it suitable for precision, fast analog front-ends.

Why Choose This Part

Choose the AD8065ARZ when you need a compact, single-supply voltage-feedback amp with both high slew rate and wide bandwidth along with very low input bias current and low offset. Its rail-to-rail output simplifies single-supply designs and lets you get closer to supply rails than many older high-speed amps. The combination of performance and modest supply current (about 6.6 mA) makes it a practical choice for portable or multi-channel systems where board space and power budget matter.

Applications

Video buffering and distribution
Line drivers, buffers and amplifiers for composite, SDI or other high-bandwidth video signals where wide flat bandwidth and fast slew are required.
High-speed ADC driver
Driving the inputs of high-speed ADCs and sample-and-hold circuits where low offset, low bias and wide bandwidth preserve signal integrity.
High-speed signal conditioning
Active single-pole or multi-pole filters, level shifting and gain stages in instrumentation and test equipment for MHz-band signals.
Low-current sensor front-ends
Amplification of signals from high-impedance sensors where very low input bias current and low offset voltage are beneficial.

Key Specifications

Slew Rate 180V/us
Output Type Rail-to-Rail
Mounting Type Surface Mount
-3db Bandwidth 145 MHz
Amplifier Type Voltage Feedback
Package / Case 8-SOIC (0.154", 3.90mm Width)
Current - Supply 6.6mA
Number of Circuits 1
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

This is an IC (no IDE or dev board required). Start by reading the datasheet recommended application circuits and observe the minimum supply span and recommended supply voltages. Use good high-speed layout practice: short feedback and input traces, solid ground plane, and local supply decoupling (for example a 0.1 uF bypass close to the supply pins plus a bulk cap nearby). If driving capacitive loads, add a small series output resistor or output network to preserve stability and reduce ringing; evaluate performance on a PCB rather than long breadboard wiring.

Also Consider

AD8066ARZ Analog Devices - Dual-channel version of the AD8065 for applications that need two matched high-speed voltage-feedback amplifiers in one package.