ADS5220 Datasheet, PDF (4/20 Pages) Burr-Brown (TI) – 12-Bit, 40MSPS Sampling, +3.3V ANALOG-TO-DIGITAL CONVERTER

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