Datasheet
AD5424/AD5433/AD5445 Data Sheet
Rev. D | Page 8 of 28
03160-006
9
12
DB4 DB1
10
11
DB3 DB2
1
2
3
4
5
6
7
8
20
13
14
15
16
17
18
19
AD5433
(Not to Scale)
I
OUT
1
I
OUT
2
GND
DB9
DB8
DB7
DB6
DB5
R
FB
V
REF
V
DD
R/W
CS
NC
NC
DB0 (LSB)
NC = NO CONNECT
Figure 5. AD5433 Pin Configuration (TSSOP)
03160-107
14
13
12
1
3
4
CS
15
R/W
NC
NC
11
DB0
GND
DB8
2
DB9
DB7
5
DB6
7
DB4
6
DB5
8
DB3
9
DB2
10
DB1
19
I
OUT
1
20
I
OUT
2
18
R
FB
17
V
REF
16
V
DD
NOTES
1. NC = NO CONNEC
T.
2. THE EXPOSED PAD MUST BE CONNECTED TO AGND.
AD5433
T
OP
VIEW
(Not to Scale)
Figure 6. AD5433 Pin Configuration (LFCSP)
Table 5. AD5433 Pin Function Descriptions
Pin No.
TSSOP LFCSP Mnemonic Description
1 19 I
OUT
1 DAC Current Output.
2 20 I
OUT
2 DAC Analog Ground. This pin should normally be tied to the analog ground of the system.
3 1 GND Ground.
4 to 13 2 to 11 DB9 to DB0 Parallel Data Bits 9 to 0.
14, 15
12, 13
NC
Not Internally Connected.
16 14
CS
Chip Select Input. Active low. Use in conjunction with R/
W
to load parallel data to the input
latch or to read data from the DAC register. Rising edge of
CS
loads data.
17 15 R/
W
Read/Write. When low, used in conjunction with
CS
to load parallel data. When high, use with
CS
to read back contents of DAC register.
18 16 V
DD
Positive Power Supply Input. These parts can be operated from a supply of 2.5 V to 5.5 V.
19 17 V
REF
DAC Reference Voltage Input Terminal.
20 18 R
FB
DAC Feedback Resistor Pin. Establish voltage output for the DAC by connecting to external amplifier
output.
Not applicable EPAD Exposed Pad. The exposed pad must be connected to AGND.