Multi-Range (±10V, ±5V, +10V, +5V),
Single +5V, 12-Bit DAS with 8+4 Bus Interface
_________________________________________________________Functional Diagram
CH7
CH6
CH5
CH4
CH3
CH2
CH1
CH0
CLK
CS
WR
RD
SHDN
INT
SIGNAL
CONDITIONING
BLOCK
AND
OVERVOLTAGE
TOLERANT
MUX
CLOCK
CONTROL LOGIC
AND
LATCHES
REF
REFADJ
AV =
1.638
10kΩ
+2.5V
REFERENCE
T/H
CHARGE REDISTRIBUTION
12-BIT DAC
12
SUCCESSIVE-
APPROXIMATION
REGISTER
COMP
4
8
4
8
MUX
8
8
THREE-STATE, BIDIRECTIONAL
I/O INTERFACE
D0–D7
8-BIT DATA BUS
MAX197
HBEN
VDD
AGND
DGND
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implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
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