AD9280
PIN CONFIGURATION
28-Lead Wide Body (SSOP)
1
2
28
27
26
25
24
23
AVDD
AIN
AVSS
DRVDD
NC
3
VREF
REFBS
REFBF
MODE
4
NC
5
D0
AD9280
TOP VIEW
6
D1
(Not to Scale)
7
D2
22 REFTF
8
21
D3
REFTS
9
20 CLAMPIN
D4
10
11
19
18
17
16
15
D5
CLAMP
D6
REFSENSE
STBY
12
13
14
D7
OTR
DRVSS
THREE-STATE
CLK
NC = NO CONNECT
PIN FUNCTION DESCRIPTIONS
SSOP
Pin No.
Name
Description
1
2
3
AVSS
DRVDD
NC
Analog Ground
Digital Driver Supply
No Connect
4
NC
No Connect
5
D0
Bit 0
6
D1
Bit 1
7
D2
Bit 2
8
D3
Bit 3
9
D4
Bit 4
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
D5
D6
D7
OTR
DRVSS
CLK
THREE-STATE
STBY
REFSENSE
CLAMP
CLAMPIN
REFTS
REFTF
MODE
REFBF
REFBS
VREF
AIN
Bit 5
Bit 6
Bit 7, Most Significant Bit
Out-of-Range Indicator
Digital Ground
Clock Input
HI: High Impedance State. LO: Normal Operation
HI: Power-Down Mode. LO: Normal Operation
Reference Select
HI: Enable Clamp Mode. LO: No Clamp
Clamp Reference Input
Top Reference
Top Reference Decoupling
Mode Select
Bottom Reference Decoupling
Bottom Reference
Internal Reference Output
Analog Input
Analog Supply
AVDD
REV. D
–5–
ADI [ ADI ]
