LTC2369-18_15 Datasheet, PDF (9/24 Pages) Linear Technology – 18-Bit, 1.6Msps, Pseudo- Differential Unipolar SAR ADC with 96.5dB SNR

FUNCTIONAL BLOCK DIAGRAM
V_DD = 2.5V
REF = 5V
OV_DD = 1.8V to 5V
IN⁺
+
CHAIN
SDO
IN^–
18-BIT SAMPLING ADC
–
SPI
PORT
RDL/SDI
SCK
CONTROL LOGIC
CNV
BUSY
GND
236918 BD
LTC2369-18
TIMING DIAGRAM
CHAIN, RDL/SDI = 0
CNV
Conversion Timing Using the Serial Interface
BUSY
SCK
CONVERT
POWER-DOWN AND ACQUIRE
SDO
D17 D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
236918 TD01
236918fa
9