AD783JR

Current - Input Bias:	100nA
Base Part Number:	AD783
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 (±):	±4.75 V ~ 5.25 V
Current - Output / Channel:	5mA
Current - Supply:	9.5mA
Series:	--
-3db Bandwidth:	15MHz
Slew Rate:	--
Output Type:	--
Number of Circuits:	1
Amplifier Type:	Sample and Hold
Part Status:	Obsolete
Packaging:	Tube

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AD783JR Application Field and Working PrincipleAD783JR is a high-performance monolithic linear amplifier made with Analog Devices’ advanced Si-Bipolar CMOS process. It is used in a wide variety of signal conditioning applications, such as automotive and industrial instrumentation, data acquisition systems, remote sensing and control systems. AD783JR offers several features including fast slew rate, wide output voltage swing, low input bias current, high gain accuracy, and superior common-mode rejection ratio. AD783JR’s application fields are mainly divided into two categories: Linear Amplifier and Instrumentation, OP Amp, Buffer Amp. Linear AmplifierAD783JR can be used as a linear amplifier with both single-ended and differential inputs. It has excellent characteristics such as low noise, low distortion and wide output voltage swing. The low noise of the linear amplifier allows it to be used in audio applications such as making amplifiers and receivers. In addition, the wide output voltage swing ensures excellent dynamic range. Instrumentation, OP Amp, Buffer AmpAD783JR can also be used in instrumentation systems, since it offers high common-mode rejection ratio, low offset voltage and high gain accuracy. The low offset voltage of the amplifier helps reduce the calibration time, and the high common-mode rejection ratio prevents erroneous measurements due to common-mode noise. In addition, the buffer amp feature enables AD783JR to be used for signal isolation, or for driving high-impedance or capacitive loads. The high-level slew rate ensures fast response to input and output signals. Working PrincipleAD783JR is an integrated circuit which includes an input stage, a voltage amplifier, a differential-to-single-ended mirror amplifier, and an output driver stage. The input stage consists of two differential amplifiers, which are connected through a capacitive coupling network for signal processing. The voltage amplifier stage is a differential circuit that amplifies the input signal and has adjustable gain control. It also has an internal feedback path to reduce the output offset voltage, and a common-mode feedback circuit which improves common-mode rejection performance.The differential-to-single-ended mirror amp stage then converts the differential signal to a single-ended signal. This stage has improved offset voltage and low output noise performance.Finally, the output driver stage buffers the output signal, and generates the output voltage signal. It also offers current limit protection, making the amplifier tolerant to short circuits. In summary, AD783JR is a high-performance monolithic linear amplifier with excellent features such as low input bias current, high gain accuracy, fast slew rate and wide output voltage swing. These features make the amplifier suitable for various signal conditioning applications, such as automotive and industrial instrumentation, data acquisition systems, and remote sensing and control systems.

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