Datasheet Analog Devices LTC2497 — Datenblatt

LTC2497
16-Bit 8-/16-Channel
DS ADC with Easy Drive Input Current
Cancellation and I2C Interface
Features Description Up to Eight Differential or 16 Single-Ended Inputs Easy DriveTM Technology Enables Rail-to-Rail
Inputs with Zero Differential Input Current
n Directly Digitizes High Impedance Sensors with
Full Accuracy
n 2-Wire I2C Interface with 27 Addresses Plus One
Global Address for Synchronizatio 600nV RMS Noise (0.02LSB Transition Noise)
n GND to V
CC Input/Reference Common Mode Range
n Simultaneous 50Hz/60Hz Rejectio 2ppm INL, No Missing Codes
n 1ppm Offset and 15ppm Full-Scale Error
n No Latency: Digital Filter Settles in a Single Cycle,
Even After a New Channel Is Selected
n Single Supply, 2.7V to 5.5V Operation (0.8mW)
n Internal Oscillator
n Tiny 5mm × 7mm QFN Package The LTC®2497 is a 16-channel (eight differential), 16-bit,
No Latency DSTM ADC with Easy Drive technology and
a 2-wire, I2C interface. The patented sampling scheme
eliminates dynamic input current errors and the shortcomings of on-chip buffering through automatic cancellation of
differential input current. This allows large external source …