+2.7V, Low-Power,

12-Bit Serial ADCs in 8-Pin SO

______________________________________________________________________________________

13

HIGH-Z

D11

D10

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

tCONV

DOUT*

CS

SCLK

1ST BYTE READ

2ND BYTE READ

EOC

MSB

LSB

*WHEN CS IS HIGH, DOUT = HIGH -Z

D11

D10

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

tCONV

DOUT*

CS

SCLK

EOC

MSB

LSB

HIGH-Z

*WHEN CS IS HIGH, DOUT = HIGH -Z

Figure 12. SPI/MICROWIRE Serial Interface Timing (CPOL = CPHA = 0)

Figure 13. QSPI Serial Interface Timing (CPOL = CPHA = 0)

SUPPLIES

+3V

+3V

GND

DGND

+3V

DIGITAL

CIRCUITRY

GND

VDD

MAX1240

MAX1241

*OPTIONAL

R* = 10

Ω

4.7

µF

0.1

µF

Figure 14. Power-Supply Grounding Condition