LTC2336-18_15 Datasheet, PDF (9/24 Pages) Linear Technology – True Bipolar, Fully Differential Input ADC with 100dB SNR

Functional Block Diagram
REFIN = 1.25V REFBUF = 2.5V
V_DD = 5V V_DDLBYP = 2.5V TO 2.4V
TO 5V
OV_DD = 1.8V
TO 5V
LTC2336-18
LDO
2.048V
REFERENCE
15k
2× REFERENCE
BUFFER
IN⁺
IN^–
R
4R
0.63× BUFFER
+
R
4R
18-BIT SAMPLING ADC
SPI
PORT
–
CHAIN
SDO
RDL/SDI
SCK
GND
CONTROL LOGIC
CNV
BUSY
233618 BD01
Timing Diagram
CHAIN, RDL/SDI = 0
CNV
Conversion Timing Using the Serial Interface
BUSY
SCK
HOLD
CONVERT
NAP
ACQUIRE
SDO
D17 D16 D15 D2 D1 D0
233618 TD01
For more information www.linear.com/LTC2336-18
233618f
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