Rainbow Electronics MAX1143 - Manual (Page 12)

MAX1142/MAX1143
14-Bit ADC, 200ksps, +5V Single-Supply
with Reference
12 ______________________________________________________________________________________
SCLK
DOUT
A/D
STATE
DIN
SSTRB
CS
4 1 8 19
START M1 M0 P2 P1 P0
UNI/
BIP
INT/
EXT
15 21 32
B2 B12
B13
MSB
B11 B1 X X
B0
LSB
FILLED WITH
ZEROS
t ACQ
ACQUISITION CONVERSION IDLE IDLE
Figure 3. Long Acquisition Mode (32-Clock Cycles) External Clock, Bipolar Mode
SCLK
DOUT
DIN
SSTRB
CS
4 1 8
START M1 M0 P2 P1 P0
UNI/
BIP
INT/
EXT
9 21 10 24
B2 B12 B11
B13
MSB
B1 X X
B0
LSB
FILLED WITH
ZEROS
t ACQ
t CONV
Figure 4. Internal Clock Mode Timing, Short Acquisition, Bipolar Mode
PO CLOCKED IN
t SSTRB
t CONV
t SCK
t CSS
SSTRB
SCLK
NOTE: FOR BEST NOISE PERFORMANCE, KEEP SCLK LOW DURING CONVERSION.
t CSH
CS
Figure 5. Internal Clock Mode SSTRB Detailed Timing