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AD9628 Datasheet(PDF) 18 Page - Analog Devices

Part # AD9628
Description  1.8 V Dual Analog-to-Digital Converter
PDF  43 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD9628 Datasheet(HTML) 18 Page - Analog Devices

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Data Sheet
AD9628
Rev. C | Page 17 of 42
PIN 1
INDICATOR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CLK+
CLK–
SYNC
NC
NC
NC
NC
NC
NC
DRVDD
B D1–/D0– (LSB)
B D1+/D0+ (LSB)
B D3–/D2–
B D3+/D2+
B D5–/D4–
B D5+/D4+
PDWN
OEB
CSB
SCLK/DFS
SDIO/DCS
OR+
OR–
A D11+/D10+ (MSB)
A D11–/D10– (MSB)
A D9+/D8+
A D9–/D8–
DRVDD
A D7+/D6+
A D7–/D6–
A D5+/D4+
A D5–/D4–
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
AD9628
CHANNEL MULTIPLEXED LVDS
TOP VIEW
(Not to Scale)
NOTES
1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
2. THE EXPOSED THERMAL PAD ON THE BOTTOM OF THE PACKAGE PROVIDES
THE ANALOG GROUND FOR THE PART. THIS EXPOSED PAD MUST BE
CONNECTED TO GROUND FOR PROPER OPERATION.
Figure 8. LFCSP Channel Multiplexed LVDS Pin Configuration (Top View)
Table 10. Pin Function Descriptions (Channel Multiplexed Parallel LVDS Mode)
Pin No.
Mnemonic
Type
Description
ADC Power Supplies
10, 19, 28, 37
DRVDD
Supply
Digital Output Driver Supply (1.8 V Nominal).
49, 50, 53,
54, 59, 60,
63, 64
AVDD
Supply
Analog Power Supply (1.8 V Nominal).
4, 5, 6, 7, 8,
9, 26, 27
NC
Do Not Connect.
0
AGND, Exposed Pad
Ground
The exposed thermal pad on the bottom of the package provides the
analog ground for the part. This exposed pad must be connected to ground
for proper operation.
ADC Analog
51
VIN+A
Input
Differential Analog Input Pin (+) for Channel A.
52
VIN−A
Input
Differential Analog Input Pin (−) for Channel A.
62
VIN+B
Input
Differential Analog Input Pin (+) for Channel B.
61
VIN−B
Input
Differential Analog Input Pin (−) for Channel B.
55
VREF
Input/Output
Voltage Reference Input/Output.
56
SENSE
Input
Reference Mode Selection.
58
RBIAS
Input/Output
External Reference Bias Resistor. Connect to 10 kΩ (1% tolerance) resistor to
ground.
57
VCM
Output
Common-Mode Level Bias Output for Analog Inputs.
1
CLK+
Input
ADC Clock Input—True.
2
CLK−
Input
ADC Clock Input—Complement.
3
SYNC
Input
Digital Synchronization Pin. Slave mode only.



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