MAX542 MAXIM [Maxim Integrated Products], MAX542 Datasheet - Page 6

• Manufacturer Part Number: MAX542
• Description: +5V, Serial-Input, Voltage-Output, 16-Bit DACs
• Manufacturer: MAXIM [Maxim Integrated Products]

+5V, Serial-Input, Voltage-Output, 16-Bit DACs
________________________________________________Pin Descriptions (continued)
MAX542
Figure 1. Timing Diagram
6
LDAC*
SCLK
DIN
CS
_______________________________________________________________________________________
*MAX542 ONLY
PIN
10
11
12
13
14
1
2
3
4
5
6
7
8
9
t
CSHO
t
CSSO
AGNDF
AGNDS
t
NAME
DGND
DS
LDAC
SCLK
REFS
REFF
OUT
N.C.
D15
RFB
V
DIN
INV
CS
DD
t
DH
t
CH
Feedback Resistor. Connect to external op amp’s output in bipolar mode.
DAC Output Voltage
Analog Ground (force)
Analog Ground (sense)
Voltage Reference Input (sense). Connect REFS to external +2.5V reference.
Voltage Reference Input (force). Connect REFF to external +2.5V reference.
Chip-Select Input
Serial Clock Input. Duty cycle must be between 40% and 60%.
No Connection. Not internally connected.
Serial Data Input
LDAC Input. A falling edge updates the internal DAC latch.
Digital Ground
Junction of internal scaling resistors. Connect to external op amp’s inverting input in
bipolar mode.
+5V Supply Voltage
t
CL
D14
FUNCTION
D0
t
CSH1
t
CSS1
t
LDACS
t
LDAC