ADMW1001 Datasheet | Analog Devices

FEATURES Embedded FIFO Enabled by the Measure Ware ecosystem Rapid configuration Upgradeable firmware enabling new features plete measurement node (sensor excitation, sensor measurement, and sensor pensation) Directly digitizes pensated and unpensated sensors Sensors include: RTD Thermocouple Multiple diagnostics Per measurement configuration (sensor type, settling time, gain, excitation currents, linearization, speed) Configurable cycle sampling time Embedded sequencer Simultaneous 50 Hz and 60 Hz antialiasing rejection SPI munications interface Power supply voltage: 3.3 V Operating temperature range: - 40°C to +85°C Wheatstone bridge Embedded linearization for 2-/3-wire PT100/1000 RTDs J, K, T, and custom type thermocouples Supports custom lookup tables Supports selected I2C/SPI sensors 2 thermocouple channels 2 universal (4-/6-wire bridge, RTD, ratiometric referencing) APPLICATIONS Asset health monitoring Laboratory instrumentation Smart agriculture Supply chain health tracking Condition profiling channels FUNCTIONAL BLOCK DIAGRAM AVDD IOVDD RSENSE_BIAS RSENSE- RSENSE+ CH1_AIN- CH1_AIN+ CH1_IEXC CH1_TC+/IEXC TC_BIAS _TC- CH2_TC+/IEXC CH2_IEXC CH2_AIN+ CH2_AIN- VREF+ VREF- INTERNAL REFERENCE DIGITAL FILTER PGA PGA 24-BIT Σ-Δ ADC 24-BIT Σ-Δ ADC CURRENT SOURCES MEASUREMENT TIME 50Hz/60Hz REJECTION CHANNEL SEQUENCER DIAGNOSTICS CALIBRATION CORRECTION/ TRANSLATION LOOKUP TABLE/ POLYNOMIAL FIFO INTERFACE LOGIC RESET WAKE_UP STATUS CS0 MISO0 MOSI0 SCLK0 DRDY CS1 MISO1 MOSI1 SCLK1 17325-001 GND_SW AGND DVDD_REG AVDD_REG INT_REF Figure 1. SCL SDA GPIO0 GPIO1...