Datasheet

AD5441
Rev. A | Page 6 of 16
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
06492-003
AD5441
TOP VIEW
(Not to Scale)
PIN 1
INDICATOR
1V
REF
2R
FB
3I
OUT
4GND
7CLK
8V
DD
6SRI
5LD
NOTES
1. THE EXPOSED PAD SHOULD BE
CONNECTED TO THE GROUND PLANE.
Figure 5. 8-Lead LFCSP Pin Configuration
1
2
3
4
8
7
6
5
AD5441
TOP VIEW
(Not to Scale)
06492-004
I
OUT
GND
R
FB
V
REF
V
DD
CLK
SRI
LD
Figure 6. 8-Lead MSOP Pin Configuration
Table 6. Pin Function Descriptions
Pin No. Mnemonic Description
1 V
REF
DAC Reference Input Pin. Establishes DAC full-scale voltage. Constant input resistance vs. code.
2 R
FB
Internal Matching Feedback Resistor. Connect to external op amp output.
3 I
OUT
DAC Current Output, full-scale output 1 LSB less than reference input voltage −V
REF
.
4 GND
Analog and Digital Ground.
5
LD Load Strobe, Level-Sensitive Digital Input. Transfers shift-register data to DAC register while active low.
See Table 3 for operation.
6 SRI 12-Bit Serial Register Input. Data loads directly into the shift register MSB first. Extra leading bits are ignored.
7 CLK
Clock Input. Positive-edge clocks data into shift register.
8 V
DD
Positive Power Supply Input. Specified range of operation 5 V ± 10%.
EP Exposed Pad. The exposed pad should be connected to the ground plane.