Datasheet Analog Devices LTC2480 — 数据表

LTC2480
16-Bit ∆Σ ADC with Easy Drive
Input Current Cancellation
FEATURES DESCRIPTION Extended Temperature Range of –40°C to 125°C
n Easy Drive Technology Enables Rail-to-Rail Inputs with Zero Differential Input Current
n Directly Digitizes High Impedance Sensors with Full Accuracy
n Programmable Gain from 1 to 256
n GND to V
CC Input/Reference Common Mode Range
n Programmable 50Hz, 60Hz or Simultaneous 50Hz/60Hz Rejection Mode
n 2ppm (0.25LSB) INL, No Missing Codes
n 1ppm Offset and 15ppm Full-Scale Error
n Selectable 2x Speed Mode (15Hz Using Internal
Oscillator)
n No Latency: Digital Filter Settles in a Single Cycle
n Single Supply 2.7V to 5.5V Operatio Internal Oscillator
n Available in a Tiny (3mm × 3mm) 10-Lead DFN Package and 10-Lead MSOP Package The LTC®2480 combines a 16-bit plus sign No Latency
∆Σ™ analog-to-digital converter with patented Easy Drive™
technology. The patented sampling scheme eliminates
dynamic input current errors and the shortcomings of onchip buffering through automatic cancellation of differential
input current. This allows large external source impedances
and input signals, with rail-to-rail input range to be directly
digitized while maintaining exceptional DC accuracy. n APPLICATIONS Direct Sensor Digitizer Weight Scales …