AD8228BRZ-RL

Voltage - Input Offset:	50µV
Base Part Number:	AD8228
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	4.6 V ~ 36 V, ±2.3 V ~ 18 V
Current - Output / Channel:	18mA
Current - Supply:	850µA
Series:	--
Current - Input Bias:	400pA
-3db Bandwidth:	650kHz
Slew Rate:	2.5 V/µs
Output Type:	--
Number of Circuits:	1
Amplifier Type:	Instrumentation
Part Status:	Active
Packaging:	Tape & Reel (TR)

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AD8228BRZ-RL Application Field and Working Principle

The AD8228BRZ-RL is an instrumentation amplifier ideal for a wide range of applications including precision instrumentation, precision data-acquisition systems, process control, industrial automation, and medical systems. It was designed to provide high-channel-to-channel linearity, stable gain, and high common-mode rejection. The device is offered in both fixed-gain and adjustable-gain packages, with all gains selectable between 2 and 256. The AD8228BRZ-RL has a single-ended output, allowing it to be used with a wide range of data converters and embedded ADC solutions.The AD8228BRZ-RL is designed to provide precision linear amplification. The device uses a backbone of three amplifier stages to provide a high-simplex signal. The first stage amplifies the reference signal, which is then applied to a summing amplifier. The second stage is a differential amplifier that amplifies the two input signals and combines them in a linear manner. The third stage is a buffer stage, which further amplifies the differential signal from the second stage and provides a single-ended output.The AD8228BRZ-RL provides excellent channel-to-channel linearity. The gain accuracy is 0.5% or less when operating at gains of 2, 4, 8, 16, 32, 64, 128, and 256. The common-mode rejection ratio (CMRR) is higher than 80dB at gains of 2 and 4, and higher than 60dB at gains of 8 to 256. The power supply rejection ratio (PSRR) is higher than 85dB at gains of 2 and 4, and higher than 70dB at gains of 8 to 256.The AD8228BRZ-RL is designed to operate over a wide supply range. The device is available in both single supply and dual supply configurations, and can operate over a range of 3.3V to 36V in single supply mode and 6.6V to 36V in dual supply mode. The output stage is designed for driving full scale A/D inputs over the same supply range.The AD8228BRZ-RL is generally considered to be a good choice for a wide range of industrial and medical applications that require precise linear amplification. The device offers excellent channel-to-channel linearity, stable gain, and high CMRR and PSRR. The adjustable gain package makes the device easy to configure for a wide range of applications. The single-ended output stage makes the device easy to interface with a wide range of data converters and embedded ADC solutions.

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