DAC8043
Rev. E | Page 6 of 16
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
00271-002
V
REF
1
R
FB
2
I
OUT
3
GND
4
V
DD
8
CLK
7
SRI
6
LD
5
DAC8043
TOP VIEW
(Not to Scale)
Figure 2. 8-Lead PDIP
00271-003
DAC8043
TOP VIEW
(Not to Scale)
NC
1
NC
2
V
REF
3
R
FB
4
NC
16
NC
15
V
DD
14
CLK
13
I
OUT
5
SRI
12
GND
6
LD
11
GND
7
NC
10
NC
8
NC
9
NC = NO CONNECT. DO NOT
CONNECT TO THIS PIN.
Figure 3. 16-Lead Wide-Body SOIC
Table 5. Pin Function Descriptions
Pin No.
8-Lead PDIP 16-Lead SOIC Mnemonic Description
1 3 V
REF
DAC Reference Voltage Input Pin.
2 4 R
FB
DAC Feedback Resistor Pin. This pin establishes voltage output for the DAC by
connecting to an external amplifier output.
3 5 I
OUT
DAC Current Output.
4 6, 7 GND Ground Pin.
5 11
LD
Load Strobe, Level-Sensitive Digital Input. Transfers shift-register data to DAC register
while active low.
6 12 SRI 12-Bit Serial Register Input. Data loads directly into the shift register MSB first. Extra
leading bits are ignored.
7 13 CLK Serial Clock Input. Positive-edge clocks data into shift register.
8 14 V
Positive Power Supply Input.
1, 2, 8, 9, 10, 15, 16 NC Do Not Connect to These Pins.
