Part Details for AD827 by Analog Devices Inc
Overview of AD827 by Analog Devices Inc
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Part Details for AD827
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AD827
Analog Devices Inc
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AD827
Analog Devices Inc
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Resources and Additional Insights for AD827
Reference Designs related to AD827
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CN0209 - Fully Programmable Universal Analog Front End for Process Control Applications
This circuit provides a fully programmable universal analog front end (AFE) for process control applications supporting 2-, 3-, and 4-wire RTD configurations, thermocouple inputs with cold junction compensation, unipolar and bipolar input voltages, and 4 mA-to-20 mA inputs as shown in the configuration diagram of Figure 2.
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CN0225 - High Impedance, High CMR, ±10 V Analog Front End Signal Conditioner for Industrial Process Control and Automation
The circuit is comprised of the AD8295 and AD8275 as the analog front end circuit, an AD7687 ADC with an ADR431 reference, and only a few other external components for decoupling, etc.
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CN0213 - Complete High Speed, High CMRR Precision Analog Front End for Process Control
This circuit is comprised of an AD8226 rail-to-rail output inamp, connected to the positive input of the AD8275 G = 0.2 difference amplifier, whose output is then connected to the input of the AD7685, a 16-bit, 250 kSPS PulSAR ADC in MSOP/QFN. The AD8226 is set for a gain-of-one mode (high voltage/current inputs), and its output is referenced to ground. Single-ended or differential inputs can be used. The output of the AD8226 is a bipolar signal, which drives the AD8275 input. The AD8275 acts to attenuate and level shift the bipolar input, providing for a gain of 0.2. Hence, differential inputs of 20 V p-p at its inputs will yield a 4 V p-p single-ended range on the output. The ADR439 precision 4.5 V reference is used to provide both the internal common-mode bias voltage for the AD8275 (VREF/2 = 2.25V), as well as the external reference voltage for the AD7685 ADC. Under these conditions, the output of the AD8275 swings from +0.25 V to +4.25 V, which is within the range of the AD7685, 0 V to +4.5 V.
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CN0352 - Cost Effective, Multichannel Lithium Ion Battery Testing System
The 8-channel battery testing system (EVAL-CN0352-EB1Z) contains eight input/output boards (EVAL-CN0352-EB1Z_IO) and one MCU board (EVAL-CN0352-EB1Z_MCU) that plug into one base board (EVAL-CN0352-EB1Z_BAS). This circuit is the input/output board.
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CN0312 - Dual-Channel Colorimeter with Programmable Gain Transimpedance Amplifiers and Synchronous Detectors
The AD8618 quad op amp forms three simple current sources to drive the LEDs with a constant current. The EVAL-SDP-CB1Z generates a 5 kHz clock that modulates one LED by using the ADG633 single pole, double throw (SPDT) switch to turn its current source’s reference voltage on and off. Setting the current sources for the other two LEDs to 0 V keeps them off while not in use.