ADS808 Datasheet, PDF (4/24 Pages) Burr-Brown (TI) – 12-Bit, 70MHz Sampling ANALOG-TO-DIGITAL CONVERTER

PIN DIAGRAM
Top View
48 47 46 45 44 43 42 41 40 39 38 37
BYP 1
+V_S 2
+V_S 3
+V_S 4
GND 5
CLK 6
CLK 7
GND 8
GND 9
OVR 10
DV 11
NC 12
ADS808Y
36 GND
35 GND
34 V_REF
33 SEL1
32 SEL2
31 GND
30 BTC
29 PD
28 OE
27 GND
26 VDRV
25 D0 (LSB)
13 14 15 16 17 18 19 20 21 22 23 24
TQFP
PIN DESCRIPTIONS
PIN I/O DESIGNATOR
1
2
3
4
5
6
I
7
I
8
9
10
O
11
O
12
13
14
O
15
O
16
O
17
O
18
O
19
O
20
O
21
O
22
O
23
O
24
O
25
O
BYP
+V_S
+V_S
+V_S
GND
CLK
CLK
GND
GND
OVR
DV
NC
NC
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
DESCRIPTION
Bypass Point
Supply Voltage
Supply Voltage
Supply Voltage
Ground
Clock Input
Complementary Clock Input
Ground
Ground
Over-Range Indicator
Data Valid Pulse: HI = Data Valid
No Connection
No Connection
Data Bit 11, (MSB)
Data Bit 10
Data Bit 9
Data Bit 8
Data Bit 7
Data Bit 6
Data Bit 5
Data Bit 4
Data Bit 3
Data Bit 2
Data Bit 1
Data Bit 0, (LSB)
PIN I/O DESIGNATOR
DESCRIPTION
26
27
28
I
29
I
30
I
31
32
33
34
35
36
37
38
39
40
41
42
43
44
I
45
46
I
47
48
VDRV
GND
OE
PD
BTC
GND
SEL2
SEL1
V_REF
GND
GND
GND
GND
REFB
CM
REFT
GND
GND
IN
GND
IN
+V_S
+V_S
Output Bit Driver Voltage Supply
Ground
Output Enable: HI = High Impedance;
LO or Floating: Normal Operation
Power Down: HI = Power Down; LO = Normal
HI = Binary Two’s Complement;
LO = Straight Binary
Ground
Reference Select 2: See Table on Page 5.
Reference Select 1: See Table on Page 5.
Internal Reference Voltage
Ground
Ground
Ground
Ground
Bottom Reference Voltage Bypass
Common-Mode Voltage (mid-scale)
Top Reference Voltage Bypass
Ground
Ground
Complementary Analog Input
Ground
Analog Input
Supply Voltage
Supply Voltage
4
ADS808
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SBAS179C