Datasheet Analog Devices LTC2488 — 数据表

LTC2488
16-Bit 2-/4-Channel ΔS
ADC with Easy Drive Input
Current Cancellation
FEATURES DESCRIPTION Up to 2 Differential or 4 Single-Ended Inputs Easy Drive Technology Enables Rail-to-Rail Inputs
with Zero Differential Input Current
n Directly Digitizes High Impedance Sensors with
Full Accuracy
n 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 4mm × 3mm DFN Package The LTC®2488 is a 4-channel (2-channel differential),
16‑bit, No Latency DS™ ADC with Easy Drive™ technology.
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 impedances and rail-torail input signals to be directly digitized while maintaining …