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FEATURES Complete Dual Matching ADC Low Power Dissipation: 225 mW (+3 V Supply) Single Supply: 2.
7 V to 5.
5 V Differential Nonlinearity Error: 0.
1 LSB On-Chip Analog Input Buffers On-Chip Reference Signal-to-Noise Ratio: 49.
2 dB Over Seven Effective Bits Spurious-Free Dynamic Range: –65 dB No Missing Codes Guaranteed 28-Lead SSOP
Dual Channel 8-Bit Resolution
CMOS ADC
AD9281
IINA IINB
IREFB IREFT QREFB QREFT VREF
REFSENSE
QINB QINA
FUNCTIONAL BLOCK DIAGRAM
AVDD AVSS CLOCK
DVDD DVSS
"I" ADC
I REGISTER
AD9281
REFERENCE BUFFER ASYNCHRONOUS MULTIPLEXER 1V
THREESTATE OUTPUT BUFFER
"Q" ADC
Q REGISTER
SLEEP SELECT
DATA 8 BITS CHIP SELECT
PRODUCT DESCRIPTION The AD9281 is a complete...