Rainbow Electronics MAX132 - Manual (Page 16)

MAX132
±18-Bit ADC with Serial Interface
16 ______________________________________________________________________________________
___________________Chip Topography
INT IN
SCLK
PG2 EOC DGND IN HI AGND
PG3 V- IN LO
0.186"
(4.72mm)
0.144"
(3.66mm)
DOUT
DIN
CS
V+
BUF OUT
INT OUT
OSC2
OSC1
PG0
PG1
CREF-
CREF+
REF+
REF-
TRANSISTOR COUNT: 2799
SUBSTRATE CONNECTED TO V+
Figure 12. MAX132 Read/Write Algorithm
WAIT UNTIL EOC PIN IS HIGH
CLEAR SCLK
CLEAR CS
SET CS
RETURN RxByte
WRITE DIN132 FROM TxByte’s MSB
SET SCLK
READ DOUT132 INTO RxByte’s LSB
CLEAR SCLK
SHIFT RxByte LEFT
SHIFT TxByte LEFT
REPEAT 8 TIMES