MAX5156 Maxim, MAX5156 Datasheet - Page 12

• Manufacturer Part Number: MAX5156
• Description: Low-Power / Dual / 12-Bit Voltage-Output DACs with Configurable Outputs
• Manufacturer: Maxim

Any number of MAX5156/MAX5157s can be daisy
chained by connecting the DOUT pin of one device to the
DIN pin of the following device in the chain (Figure 7).
Since the MAX5156/MAX5157’s DOUT has an internal
active pull-up, the DOUT sink/source capability deter-
mines the time required to discharge/charge a capaci-
Low-Power, Dual, 12-Bit Voltage-Output DACs
with Configurable Outputs
Figure 5. Serial-Interface Timing Diagram
Figure 6. Detailed Serial-Interface Timing Diagram
Figure 7. Daisy Chaining MAX5156/MAX5157s
12
______________________________________________________________________________________
SCLK
DIN
CS
SCLK
t
DIN
CSO
CS
SCLK
DIN
CS
MAX5156
MAX5157
t
CSS
A0
t
DS
1
t
DOUT
DH
C1
Daisy Chaining Devices
C0 D11 D10
t
CL
D9
SCLK
DIN
CS
t
CH
D8
MAX5156
MAX5157
D7
8
DOUT
D6
tive load. Refer to the digital output V
fications in the Electrical Characteristics .
Figure 8 shows an alternative method of connecting
several MAX5156/MAX5157s. In this configuration, the
data bus is common to all devices; data is not shifted
through a daisy-chain. More I/O lines are required in
this configuration because a dedicated chip-select
input (CS) is required for each IC.
9
D5
D4
D3
t
SCLK
DIN
CS
CP
MAX5156
MAX5157
D2
D1
DOUT
D0
t
CSH
S0
16
COMMAND
EXECUTED
t
CS1
TO OTHER
SERIAL DEVICES
OH
t
CSW
and V
OL
speci-