Datasheet

AD5541A
Rev. A | Page 7 of 20
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
V
DD
1
V
OUT
2
A
GND 3
REF
4
CS 5
V
LOGIC
10
DGND 9
LDAC 8
DIN
7
SCLK 6
AD5541A
TOP VIEW
(Not to Scale)
08516-031
Figure 4. AD5541A 10-Lead MSOP Pin Configuration
Table 6. AD5541A Pin Function Descriptions
Pin No. Mnemonic Description
1 V
DD
Analog Supply Voltage.
2 V
OUT
Analog Output Voltage from the DAC.
3 AGND Ground Reference Point for Analog Circuitry.
4 REF
Voltage Reference Input for the DAC. Connect to an external 2.5 V reference. The reference can range from
2 V to V
DD
.
5
CS
Logic Input Signal. The chip select signal is used to frame the serial data input.
6 SCLK
Clock Input. Data is clocked into the serial input register on the rising edge of SCLK. The duty cycle must be
between 40% and 60%.
7 DIN
Serial Data Input. This device accepts 16-bit words. Data is clocked into the serial input register on the rising edge
of SCLK.
8
LDAC
LDAC Input. When this input is taken low, the DAC register is simultaneously updated with the contents of the
serial register data.
9 DGND Digital Ground. Ground reference for digital circuitry.
10 V
LOGIC
Logic Power Supply.