Datasheet Linear Technology LTC2484CDD
24-Bit ΔΣ ADC with Easy Drive Input Current Cancellation
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LTC2484 - 24-Bit Î”Î£ ADC with Easy Drive Input Current Cancellation
24-Bit âˆ†Î£ ADC with
Easy Drive Input Current Cancellation
Features Description Easy Drive Technology Enables Rail-to-Rail Inputs
with Zero Differential Input Current
n Directly Digitizes High Impedance Sensors with
n GND to V
CC Input/Reference Common Mode Range
n Programmable 50Hz, 60Hz or Simultaneous 50Hz/60Hz Rejection Mode
n 2ppm INL, No Missing Codes
n 1ppm Offset and 15ppm Total Unadjusted Error
n Selectable 2Ã— Speed Mode (15Hz Using Internal
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 Ã— 3mm) 10-Lead DFN Package The LTCÂ®2484 combines a 24-bit No Latency âˆ†Î£â„¢ analogto-digital converter with patented Easy Driveâ„¢ 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 input ...
- Data Conversion > Analog-to-Digital Converters (ADC) > No Latency Delta Sigma ADCs
Docket:LTC2484 24-Bit ADC with Easy Drive Input Current Cancellation FeaTures DescripTion
The LTC®2484 combines a 24-bit No Latency TM analogto-digital converter with patented Easy DriveTM 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 input signals with rail-to-rail input range to be directly digitized while maintaining exceptional DC accuracy. The LTC2484 includes an on-chip oscillator. The LTC2484 can be configured to reject line frequencies. 50Hz, 60Hz or simultaneous 50Hz/60Hz line frequency rejection can be selected as well as a 2× speed-up mode. The LTC2484 allows a wide common mode input range (0V to VCC) independent of the reference voltage. The reference can be as low as 100mV or can be tied directly to VCC. The LTC2484 includes an on-...