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CMOS, 24-Bit Signal Conditioning ADC with Current Source
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FEATURES
Charge Balancing ADC
24 Bits, No Missing Codes
ⴞ0.0015% Nonlinearity
2-Channel Programmable Gain Front End
Gains from 1 to 128
Differential Inputs
Low-Pass Filter with Programmable Filter Cutoffs
Ability to Read/Write Calibration Coefficients
Bidirectional Microcontroller Serial Interface
Internal/External Reference Option
Single-or Dual-Supply Operation
Low Power (25 mW Typ) with Power-Down Mode
(7 mW Typ) Signal Conditioning ADC
AD7710
FUNCTIONAL BLOCK DIAGRAM
AVDD DVDD REF
REF
IN (–) IN (+) REF OUT 2.5V REFERENCE 4.5A CHARGE-BALANCING A/D
CONVERTER AIN1(+)
AIN1(–) M
U …