MAX1240_10 Datasheet, PDF (13/15 Pages) Maxim Integrated Products – +2.7V, Low-Power, 12-Bit Serial ADCs in 8-Pin SO

+2.7V, Low-Power,
12-Bit Serial ADCs in 8-Pin SO
1ST BYTE READ
SCLK
CS
tCONV
DOUT*
D11 D10 D9 D8 D7 D6 D5
D4
MSB
EOC
*WHEN CS IS HIGH, DOUT = HIGH -Z
Figure 12. SPI/MICROWIRE Serial Interface Timing (CPOL = CPHA = 0)
2ND BYTE READ
D3 D2 D1 D0
LSB
HIGH-Z
SCLK
CS
DOUT*
tCONV
D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
MSB
LSB
EOC
*WHEN CS IS HIGH, DOUT = HIGH -Z
Figure 13. QSPI Serial Interface Timing (CPOL = CPHA = 0)
HIGH-Z
SUPPLIES
+3V
+3V GND
R* = 10Ω
4.7μF
0.1μF
VDD
GND
MAX1240
MAX1241
+3V DGND
DIGITAL
CIRCUITRY
*OPTIONAL
Figure 14. Power-Supply Grounding Condition
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