PIN CONFIGURATION
48 47 46 45 44 43 42 41 40 39 38 37
MSBI
OE
1
2
3
4
5
6
7
8
9
36 AVDD
35 NC
Mode Select
STPD
34 REFT
33 NC
QPD
32 REFB
31 RSEL
30 VREF
29 AGND
28 AGND
27 AGND
26 NC
GDRV
ADS5220
GDRV
VDRV
VDRV
D11 (MSB) 10
D10 11
D9 12
25 NC
13 14 15 16 17 18 19 20 21 22 23 24
PIN ASSIGNMENTS
PIN
I/O
NAME
DESCRIPTION
PIN
I/O
NAME
DESCRIPTION
1
MSBI
Most Significant Bit Invert (HI = Binary Two’s
Complement, LO = Straight Offset Binary)
Tri-State (LO = Enabled, HI = Tri-State)
25
26
27
28
29
30
31
NC
No Internal Connection
No Internal Connection
Analog Ground
NC
2
3
OE
AGND
AGND
AGND
VREF
Mode Select Duty Cycle Stablilizer (HI = Enabled,
LO = Normal Operation)
Analog Ground
Analog Ground
4
5
STPD
Standard Power Down (LO = Normal
Operation, HI = Enabled)
Internal Reference Voltage (1/2V Reference)
Reference Mode Select (see Table I for
settings)
QPD
Quasi Power Down (LO = Normal Operation,
HI = Enabled)
RSEL
6
GDRV
GDRV
VDRV
VDRV
D11 (MSB)
D10
Output Driver Ground
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
REFB
NC
Bottom Reference Bypass
No Internal Connection
Top Reference Bypass
No Internal Connection
Analog Supply
7
Output Driver Ground
8
Output Driver Supply
REFT
NC
9
Output Driver Supply
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
O
O
O
O
O
O
O
O
O
O
O
O
Data Bit 12
AVDD
AVDD
AGND
AGND
AGND
IN
Data Bit 11
D9
Data Bit 10
Analog Supply
D8
Data Bit 9
Analog Ground
D7
Data Bit 8
Analog Ground
D6
Data Bit 7
Analog Ground
D5
Data Bit 6
I
I
Analog Input
D4
Data Bit 5
IN
Complementary Analog Input
Digital Ground
D3
Data Bit 4
DGND
DGND
DGND
CLK
D2
Data Bit 3
Digital Ground
D1
Data Bit 2
Digital Ground
D0 (LSB)
NC
Data Bit 1
I
I
I
Convert Clock Input
Digital Supply
No Internal Connection
No Internal Connection
Over-Range Indicator
DVDD
DVDD
NC
Digital Supply
OVR
ADS5220
4
SBAS261A
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