Part Details for AD7175 by Analog Devices Inc
Overview of AD7175 by Analog Devices Inc
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Part Details for AD7175
AD7175 CAD Models
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Reference Designs related to AD7175
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CN0364 - PLC/DCS Quad Channel Voltage and Current Input with HART Compatibility
The data conversion is performed by the AD7173-8 24-bit, Σ-Δ analog-to-digital converter (ADC). The AD7173-8 is software configurable and allows 8 fully differential or 16 single-ended input channels, offering great flexibility via an internal crosspoint multiplexer. The AD7173-8 is in a small 6 mm × 6 mm LFCSP package, making it ideal where space is a premium. The internal clock and precision 2.5 V voltage reference minimize external components and result in additional space savings. The four programmable general-purpose output pins (GPIO0, GPIO1, GPO2, GPO3) allow external multiplexer control, which allows the control of the multiplexed HART interface and eliminates the need for additional control lines from the processor/controller. The AD7173-8 has internal calibration registers that can be programmed to provide offset and gain corrections for the full input path.
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CN0292 - Completely Isolated, Robust, 4-Channel, Multiplexed Data Acquisition System for Industrial Level Signals
This circuit is a completely isolated, robust, industrial, 4-channel data acquisition system that provides 16-bit, noise free code resolution and an automatic channel switching rate of up to 42 kSPS. The channel to channel crosstalk at 42 kSPS switching is less than 15 ppm FS (less than −90 dB) because of the unique selection of fast settling components in the multiplexed signal chain.<p>The circuit acquires and digitizes standard industrial signal levels of ±5 V, ±10 V, 0 V to 10 V, and 0 mA to 20 mA. The input buffers also provide overvoltage protection, thereby eliminating the leakage errors associated with conventional Schottky diode protection circuits.<p>Applications for the circuit include process control (PLC/DCS modules), battery testing, scientific multichannel instrumentation, and chromatography.
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CN0363 - Dual-Channel Colorimeter with Programmable Gain Transimpedance Amplifiers and Digital Synchronous Detection
This circuit is a dual-channel colorimeter featuring a modulated light source transmitter, programmable gain transimpedance amplifiers on each channel, and a very low noise, 24-bit Σ-Δ analog-to-digital converter (ADC). The output of the ADC connects to a standard FPGA mezzanine card. The FPGA takes the sampled data from the ADC and implements a synchronous detection algorithm.