Part Details for ADR3440 by Analog Devices Inc
Overview of ADR3440 by Analog Devices Inc
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Available Datasheets
Part # | Manufacturer | Description | Datasheet |
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ADR3440ARJZ-R2 | Analog Devices | 4.096V 0.60um CMOS 10ppm/C Vol | |
ADR3440ARJZ-R7 | Analog Devices | 4.096V 0.60um CMOS 10ppm/C Vol |
Part Details for ADR3440
ADR3440 CAD Models
ADR3440 Part Data Attributes
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ADR3440
Analog Devices Inc
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ADR3440
Analog Devices Inc
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Resources and Additional Insights for ADR3440
Reference Designs related to ADR3440
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CN0287 - Isolated 4-Channel, Thermocouple/RTD Temperature Measurement System with 0.5°C Accuracy
This circuit is a completely isolated 4-channel temperature measurement circuit optimized for performance, input flexibility, robustness, and low cost. It supports all types of thermocouples with cold junction compensation and any type of RTD (resistance temperature detector) with resistances up to 4 kΩ for 2-, 3-, or 4-wire connection configurations.<p>The RTD excitation current are is programmable for optimum noise and linearity performance.<P>RTD measurements achieve 0.1°C accuracy (typical), and Type-K thermocouple measurements achieve 0.05°C typical accuracy because of the 16-bit ADT7310 digital temperature sensor used for cold-junction compensation. The circuit uses a four-channel AD7193 24-bit sigma-delta ADC with on-chip PGA for high accuracy and low noise.<p>Input transient and overvoltage protection are provided by low leakage transient voltage supressors (TVS) and Schottky diodes. The SPI-compatible digital inputs and outputs are isolated (2500 V rms), and the circuit is operated on a fully isolated power supply.