Analog Devices Inc.

Category: Data Converters

32 A, Ultra Low Power, 24-Bit Sigma-Delta ADC with Integrated PGA and FIFO Features: Ultralow current consumption (typical): 32 μA: continuous conversion mode (gain = 128) 5 μA: duty cycling mode (ratio = 1/16) 0.5 μA: standby mode 0.1 μA: power-down mode Built-in features for system level power savings: Current saving duty cycle ratio: 1/4 or 1/16 Smart sequencer and per channel configuration minimizes host processor load Deep embedded FIFO minimizes host processor load (depth of 256 samples) Autonomous FIFO interrupt functionality, threshold detection Single supply as low as 1.71 V increasing battery length RMS noise: 25 nV rms at 1.17 SPS (gain = 128) – 48 nV/√Hz Up to 22 noise free bits (gain = 1) Output data rate: 1.17 SPS to 2.4 kSPS Operates from 1.71 V to 3.6 V single supply or ±1.8 V split supplies Band gap reference with 15 ppm/°C maximum drift PGA with rail-to-rail analog input Adaptable sensor interfacing functionality: Matched programmable excitation currents for RTDs On-chip bias voltage generator for thermocouples Low-side power switch for bridge transducers Sensor open wire detection Internal temperature sensor and oscillator Self and system calibration Flexible filter options Simultaneous 50 Hz/60 Hz rejection (on selected filter options) General-purpose outputs Diagnostic functionality Crosspoint multiplexed inputs 8 differential/16 pseudo differential inputs 5 MHz SPI (3-wire or 4-wire) Available in 35-ball, 2.74 mm × 3.6 mm WLCSP Temperature range: −40°C to +105°C

$9.80 - $16.02