+2.7V, Low-Power, 8-Channel,
Serial 12-Bit ADCs
ANALOG
INPUTS
1 CH0
2 CH1
VDD 20
SCLK 19
3 CH2
CS 18
4 CH3 MAX146 DIN 17
MAX147
5 CH4
SSTRB 16
6 CH5
DOUT 15
7 CH6
DGND 14
8 CH7
AGND 13
9 COM
REFADJ 12
10 SHDN
VREF 11
0.1µF
0.1µF
+2.5V
+3V +3V
1µF
(POWER SUPPLIES)
SCK
PCS0
MOSI
MC683XX
MISO
(GND)
Figure 20. MAX146/MAX147 QSPI Connections, External Reference
XF
CLKX
TMS320LC3x
CLKR
DX
DR
FSR
CS
SCLK
MAX146
MAX147
DIN
DOUT
SSTRB
Figure 21. MAX146/MAX147-to-TMS320 Serial Interface
22 ______________________________________________________________________________________