ADS5422 Datasheet, PDF (4/19 Pages) Texas Instruments – 14-Bit, 62MSPS Sampling ANALOG-TO-DIGITAL CONVERTER

PIN CONFIGURATION
Top View
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
+V_SA 1
+V_SA 2
+V_SD 3
+V_SD 4
+V_SD 5
+V_SD 6
GND 7
GND 8
CLK 9
CLK 10
GND 11
GND 12
GNDRV 13
GNDRV 14
DNC 15
DV 16
ADS5422Y
48 GND
47 GND
46 V_REF
45 SEL1
44 SEL2
43 GND
42 GND
41 BTC
40 PD
39 OE
38 GNDRV
37 GNDRV
36 GNDRV
35 VDRV
34 VDRV
33 VDRV
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
LQFP
PIN DESCRIPTIONS
PIN I/O DESIGNATOR
1
2
3
4
5
6
7
8
9
I
10
I
11
12
13
14
15
16
17 O
18 O
19 O
20 O
21 O
22 O
23 O
24 O
25 O
26 O
27 O
28 O
29 O
30 O
31
32
+V_SA
+V_SA
+V_SD
+V_SD
+V_SD
+V_SD
GND
GND
CLK
CLK
GND
GND
GNDRV
GNDRV
DNC
DV
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
NC
NC
DESCRIPTION
Analog Supply Voltage
Analog Supply Voltage
Digital Supply Voltage
Digital Supply Voltage
Digital Supply Voltage
Digital Supply Voltage
Ground
Ground
Clock Input
Complementary Clock Input
Ground
Ground
Ground
Ground
Do Not Connect
Data Valid Pulse: HI = Data Valid
Data Bit 1 (D13) (MSB)
Data Bit 2 (D12)
Data Bit 3 (D11)
Data Bit 4 (D10)
Data Bit 5 (D9)
Data Bit 6 (D8)
Data Bit 7 (D7)
Data Bit 8 (D6)
Data Bit 9 (D5)
Data Bit 10 (D4)
Data Bit 11 (D3)
Data Bit 12 (D2)
Data Bit 13 (D1)
Data Bit 14 (D0) (LSB)
No Internal Connection
No Internal Connection
PIN I/O DESIGNATOR
DESCRIPTION
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
I
58
59
I
60
61
62
63
64
VDRV
VDRV
VDRV
GNDRV
GNDRV
GNDRV
OE
PD
BTC
GND
GND
SEL2
SEL1
V_REF
GND
GND
GND
REFB
CM
REFT
GND
GND
GND
GND
IN
GND
IN
GND
REFBY
GND
+V_SA
+V_SA
Output Driver Supply Voltage
Output Driver Supply Voltage
Output Driver Supply Voltage
Ground
Ground
Ground
Output Enable: HI = High Impedance
Power Down: HI = Power Down; LO = Normal
HI = Binary Two’s Complement
Ground
Ground
Reference Select 2: See Table I
Reference Select 1: See Table I
Internal Reference Voltage
Ground
Ground
Ground
Bottom Reference Voltage Bypass
Common-Mode Voltage (Midscale)
Top Reference Voltage Bypass
Ground
Ground
Ground
Ground
Complementary Analog Input
Ground
Analog Input
Ground
Reference Bypass
Ground
Analog Supply Voltage
Analog Supply Voltage
4
ADS5422
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SBAS250C