Datasheet

AD7376
Rev. D | Page 8 of 20
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
01119-004
A
1
B
2
V
SS
3
GND
4
W
14
NC
13
V
DD
12
SDO
11
CS
5
RS
6
CLK
7
SHDN
10
SDI
9
NC
8
NC = NO CONNECT
AD7376
TOP VIEW
(Not to Scale)
Figure 4. 14-Lead TSSOP Pin Configuration
01119-005
A
1
B
2
V
SS
3
GND
4
W
16
NC
15
V
DD
14
SDO
13
CS
5
SHDN
12
RS
6
SDI
11
CLK
7
NC
10
NC
8
NC
9
NC = NO CONNECT
AD7376
TOP VIEW
(Not to Scale)
Figure 5. 16-Lead SOIC_W Pin Configuration
Table 6.Pin Function Descriptions
Pin No.
14-Lead
TSSOP
16-Lead
SOL Mnemonic Description
1 1 A A Terminal. V
SS
≤ V
A
≤ V
DD
.
2 2 B B Terminal. V
SS
≤ V
B
≤ V
DD
.
3 3 V
SS
Negative Power Supply.
4 4 GND Digital Ground.
5 5
CS
Chip Select Input, Active Low. When
CS
returns high, data is loaded into the wiper register.
6 6
RS
Reset to Midscale.
7 7 CLK Serial Clock Input. Positive edge triggered.
8 8, 9, 10 NC No Connect. Let it float or ground.
9 11 SDI Serial Data Input (data loads MSB first).
10 12
SHDN
Shutdown. A terminal open ended; W and B terminals shorted. Can be used as
programmable preset.
1
11
13
SDO
Serial Data Output.
12 14 V
DD
Positive Power Supply.
13 15 NC No Connect. Let it float or ground.
14 16 W Wiper Terminal. V
SS
≤ V
W
≤ V
DD
.
1
Assert shutdown and program the device during power-up. Then, deassert the shutdown to achieve the desirable preset level.