Product Summary
The LTC2495CUHF is a 16-channel (eight differential) , 16-bit, No Latency ΔΣADC with Easy Drive technology and a 2-wire, I2C interface. The LTC2495CUHF includes programmable gain, a high accuracy temperature sensor, and an integrated oscillator. The LTC2495CUHF allows a wide common mode input range (0V to VCC) , independent of the reference voltage. Applications of the LTC2495CUHF include: Direct Sensor Digitizer, Direct Temperature Measurement, Instrumentation and Industrial Process Control.
Parametrics
LTC2495CUHF absolute maximum ratings: (1) Supply Voltage (VCC) : -0.3 to (Vcc +0.3V) ; (2) Analog Input Voltage (CH0-CH15, COM) : -0.3 to (Vcc +0.3V) ; (3) REF+, REF–: -0.3 to (Vcc +0.3V) ; (4) ADCINN, ADCINP, MUXOUTP, MUXOUTN: -0.3 to (Vcc +0.3V) ; (5) Digital Input Voltage: -0.3 to (Vcc +0.3V) ; (6) Digital Output Voltage: -0.3 to (Vcc +0.3V) ; (7) Operating Temperature Range: 0 to 70°C; (8) Storage Temperature Range: -65 to 150°C.
Features
LTC2495CUHF features: Up to Eight Differential or 16 Single-Ended Inputs; (2) Easy DriveTechnology Enables Rail-to-Rail Inputs with Zero Differential Input Current; (3) Directly Digitizes High Impedance Sensors with Full Accuracy; (4) 2-Wire I2C Interface with 27 Addresses Plus One Global Address for Synchronization; (5) 600nV RMS Noise; (6) Programmable Gain from 1 to 256; (7) Integrated High Accuracy Temperature Sensor; (8) GND to VCC Input/Reference Common Mode Range; (9) Programmable 50Hz, 60Hz, or Simultaneous 50Hz/60Hz Rejection Mode; (10) 2ppm INL, No Missing Codes; (11) 1ppm Offset and 15ppm Full-Scale Error; (12) 2x Speed/Reduced Power Mode (15Hz Using Internal Oscillator and 80μA at 7.5Hz Output) ; (13) No Latency: Digital Filter Settles in a Single Cycle, Even After a New Channel is Selected; (14) Single Supply 2.7V to 5.5V Operation (0.8mW) ; (15) Internal Oscillator; (16) Tiny 5mm ×7mm QFN Package.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
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LTC2495CUHF#TRPBF |
IC ADC 16BIT W/PGA 38-QFN |
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