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AD9648 View Datasheet(PDF) - Analog Devices

Part NameDescriptionManufacturer
AD9648 14-Bit, 125 MSPS/105 MSPS, 1.8 V Dual Analog-to-Digital Converter ADI
Analog Devices ADI
AD9648 Datasheet PDF : 44 Pages
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AD9648
CLK+ 1
CLK– 2
SYNC 3
NC 4
NC 5
NC 6
NC 7
B D1–/D0– (LSB) 8
B D1+/D0+ (LSB) 9
DRVDD 10
B D3–/D2– 11
B D3+/D2+ 12
B D5–/D4– 13
B D5+/D4+ 14
B D7–/D6– 15
B D7+/D6+ 16
PIN 1
INDICATOR
AD9648
CHANNEL MULTIPLEXED LVDS
TOP VIEW
(Not to Scale)
48 PDWN
47 OEB
46 CSB
45 SCLK/DFS
44 SDIO/DCS
43 OR+
42 OR–
41 A D13+/D12+ (MSB)
40 A D13–/D12– (MSB)
39 A D11+/D10+
38 A D11–/D10–
37 DRVDD
36 A D9+/D8+
35 A D9–/D8–
34 A D7+/D6+
33 A D7–/D6–
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. 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, AVDD
59, 60, 63, 64
Supply
Analog Power Supply (1.8 V Nominal).
4, 5, 6, 7
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.
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.
Digital Input
3
SYNC
Input
Digital Synchronization Pin. Slave mode only.
Rev. 0 | Page 17 of 44
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