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ADA4806-1

Analog Devices
Part Number ADA4806-1
Manufacturer Analog Devices
Description Rail-to-Rail Amplifier
Published Feb 27, 2016
Detailed Description Data Sheet 0.2 µV/°C Offset Drift, 105 MHz, Low Power, Multimode, Rail-to-Rail Amplifier ADA4806-1 FEATURES Ultralow s...
Datasheet PDF File ADA4806-1 PDF File

ADA4806-1
ADA4806-1

Overview
Data Sheet 0.
2 µV/°C Offset Drift, 105 MHz, Low Power, Multimode, Rail-to-Rail Amplifier ADA4806-1 FEATURES Ultralow supply current Full power mode: 500 µA Sleep mode: 74 µA Shutdown mode: 2.
9 µA Dynamic power scaling Turn-on time from shutdown mode: 1.
5 µs Turn-on time from sleep mode: 0.
45 µs High speed performance with dc precision Input offset voltage: 125 µV maximum Input offset voltage drift: 1.
5 µV/°C maximum −3 dB bandwidth: 105 MHz Slew rate: 160 V/ µs Low noise and distortion 5.
9 nV/√Hz input voltage noise with 8 Hz 1/f corner −102 dBc/−126 dBc HD2/HD3 at 100 kHz Wide supply range: 2.
7 V to 10 V Small package: 8-lead SOT-23 APPLICATIONS Portable and battery-powered instruments and systems High channel density data acquisition systems Precision analog-to-digital converter (ADC) drivers Voltage reference buffers Portable point of sales terminals Active RFID readers GENERAL DESCRIPTION The ADA4806-1 is a high speed, voltage feedback, rail-to-rail output, single operational amplifier with three power modes: full power mode, sleep mode, and shutdown mode.
In full power mode, this amplifier provides a wide bandwidth of 105 MHz at a gain of +1, a fast slew rate 160 V/μs, and excellent dc precision with a low input offset voltage of 125 μV (maximum) and an input offset voltage drift of 1.
5 μV/°C (maximum), while consuming only 500 μA of quiescent current.
Despite being a low power amplifier, the ADA4806-1 provides excellent overall performance, making it ideal for low power, high resolution data conversion systems.
For data conversion applications where minimizing power dissipation is paramount, the ADA4806-1 offers a method to reduce power by dynamically scaling the quiescent power of the ADC driver with the sampling rate of the system by switching the amplifier to a lower power mode between samples.
TYPICAL APPLICATIONS CIRCUIT 5V 2.
5V REF ADA4806-1 C2 10µF C3 0.
1µF VDD C4 100nF 0V TO VREF 5V ADA4806-1 R3 20Ω C1 2.
7nF REF VDD IN+ AD7980 IN– GND 1339...


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