AD9628 Analog Devices, AD9628 Datasheet - Page 17

• Manufacturer Part Number: AD9628
• Description: 12-Bit, 125/105 MSPS, 1.8 V Dual Analog-to-Digital Converter
• Manufacturer: Analog Devices

Specifications of AD9628

• Resolution (bits): 12bit
• # Chan: 2
• Sample Rate: 125MSPS
• Interface: LVDS,Par
• Analog Input Type: Diff-Bip,SE-Uni
• Ain Range: 2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

Table 10 Pin Function Descriptions (Channel Multiplexed Parallel LVDS Mode)
Pin No.
ADC Power Supplies
10, 19, 28, 37
49, 50, 53,
54, 59, 60,
63, 64
4, 5, 6, 7, 8, 9,
26, 27
0
ADC Analog
51
52
62
61
55
56
58
57
1
2
3
Mnemonic
DRVDD
AVDD
NC
AGND, Exposed Pad
VIN+A
VIN−A
VIN+B
VIN−B
VREF
SENSE
RBIAS
VCM
CLK+
CLK−
SYNC
B D1+/D0+ (LSB)
B D1–/D0– (LSB)
B D3–/D2–
B D3+/D2+
B D5–/D4–
B D5+/D4+
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.
DRVDD
SYNC
CLK+
CLK–
NC
NC
NC
NC
NC
NC
Figure 8. LFCSP Channel Multiplexed LVDS Pin Configuration (Top View)
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Type
Supply
Supply
Ground
Input
Input
Input
Input
Input/Output
Input
Input/Output
Output
Input
Input
Input
PIN 1
INDICATOR
CHANNEL MULTIPLEXED LVDS
(Not to Scale)
Rev. 0 | Page 17 of 44
AD9628
TOP VIEW
Description
Digital Output Driver Supply (1.8 V Nominal).
Analog Power Supply (1.8 V Nominal).
Do Not Connect.
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.
Differential Analog Input Pin (+) for Channel A.
Differential Analog Input Pin (−) for Channel A.
Differential Analog Input Pin (+) for Channel B.
Differential Analog Input Pin (−) for Channel B.
Voltage Reference Input/Output.
Reference Mode Selection.
External Reference Bias Resistor.
Common-Mode Level Bias Output for Analog Inputs.
ADC Clock Input—True.
ADC Clock Input—Complement.
Digital Synchronization Pin. Slave mode only.
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
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–
AD9628