AD706JR

Voltage - Input Offset:	30µV
Base Part Number:	AD706
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Voltage - Supply, Single/Dual (±):	4 V ~ 36 V, ±2 V ~ 18 V
Current - Output / Channel:	15mA
Current - Supply:	750µA
Series:	--
Current - Input Bias:	50pA
-3db Bandwidth:	800kHz
Slew Rate:	0.15 V/µs
Output Type:	--
Number of Circuits:	2
Amplifier Type:	General Purpose
Part Status:	Obsolete
Packaging:	Tube

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AD706JR Linear Instrumentation OP Amps, Buffer Amps

The AD706JR is a low power linear amplifier from Analog Devices which is well suited for a wide range of instrumentation, operational amplifier and buffer amplifier applications. Its performance and versatility make it a popular choice among engineers and technicians.

Applications

The AD706JR can be used in a wide variety of applications, such as signal conditioning, audio circuitry, analog-to-digital and digital-to-analog converters, sensor interfaces, and amplifier designs. Its small package size makes it easy to integrate into compact designs. It is particularly suitable for low power applications, where its low nominal voltage offsets, low distortion figures and low input bias current make it ideal for use in precision measurements and low noise amplifiers. It can also be used to power light-duty transducers, such as smoke detectors and proximity sensors. The AD706JR is also well suited for driving logic devices, such as digital displays and bus lines. Its low power consumption also makes it especially well suited for battery-powered devices.

Working Principle

The AD706JR is an integrated circuit containing two separate amplifiers, each utilizing an op-amp configuration known as an instrumentation amplifier. An instrumentation amplifier is a type of differential amplifier. It amplifies the difference between two input signals while rejecting the other signals present in the circuit, such as residual common-mode noise. This makes instrumentation amplifiers ideal for conditioning signals that contain noise or unwanted signals. The AD706JR consists of two separate amplifiers, each of which is comprised of three op-amps. The first op-amp is a differential amplifier, used to detect and amplify the difference between the two input signals. The second and third op-amps are configured to provide gain and feedback, respectively. This configuration provides a high CMRR (common-mode rejection ratio) and sets the gain of the amplifier. The AD706JR is designed to operate on a low operating voltage, typically +5V and -5.5V. This makes it well suited for powering transducers and logic devices, while preserving battery life in portable applications.

Conclusion

The AD706JR is a versatile and low power linear amplifier. Its small package size, low power consumption and high CMRR make it an ideal choice for a wide range of applications, including signal conditioning, audio circuitry, analog-to-digital, digital-to-analog converters, sensor interfaces, and op-amp, buffer amp, and logic circuits. Its performance makes it well suited for precision measurements and low noise amplifiers, and it is especially well suited for powering transducers and logic devices in battery-powered applications.

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