AD9286 Analog Devices, AD9286 Datasheet - Page 10

• Manufacturer Part Number: AD9286
• Description: 8-Bit, 500 MSPS, 1.8 V Analog-to-Digital Converter (ADC)
• Manufacturer: Analog Devices

Specifications of AD9286

• Resolution (bits): 8bit
• # Chan: 2
• Sample Rate: 500MSPS
• Interface: Par
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: 2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD9286
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 8. Pin Function Descriptions
Pin No.
ADC Power Pins
1, 2, 35, 36, 37, 40, 42,
44, 45, 48
8, 27
7, 28
0
ADC Analog Pins
39
38
46
47
43
5
41
34
33
3
4
Digital Inputs
6
29
Digital Outputs
26
25
24
23
Mnemonic
AVDD
DRVDD
DRGND
AGND
VIN1+
VIN1−
VIN2+
VIN2−
VREF
RBIAS
VCM
CLK+
CLK−
AUXCLK+
AUXCLK−
AUXCLKEN
OE
D7+ (MSB)
D7− (MSB)
D6+
D6−
AUXCLKEN
D0+ (LSB)
NOTES
1.
AUXCLK+
AUXCLK–
D0– (LSB)
DRGND
THE EXPOSED PADDLE MUST BE SOLDERED TO THE PCB ANALOG
GROUND TO ENSURE PROPER FUNCTIONALITY AND HEAT
DISSIPATION, NOISE, AND MECHANICAL STRENGTH BENEFITS.
DRVDD
RBIAS
AVDD
AVDD
D1–
D1+
Type
Supply
Supply
Ground
Ground
Input
Input
Input
Input
Input/output
Input/output
Output
Input
Input
Input
Input
Input
Input
Output
Output
Output
Output
10
11
12
1
2
3
4
5
6
7
8
9
PIN 1
INDICATOR
Figure 6. Pin Configuration
Rev. A | Page 10 of 28
(Not to Scale)
Description
Analog Power Supply (1.8 V Nominal).
Digital Output Driver Supply (1.8 V Nominal).
Digital Output Ground.
Analog Ground. Pin 0 is the exposed thermal pad on the bottom of the
package. This is the only ground connection, and it must be soldered to
the PCB analog ground to ensure proper functionality and heat dissipation,
noise, and mechanical strength benefits.
Differential Analog Input Pin (+) for Channel 1.
Differential Analog Input Pin (−) for Channel 1.
Differential Analog Input Pin (+) for Channel 2.
Differential Analog Input Pin (−) for Channel 2.
Voltage Reference Input/Output.
External Reference Bias Resistor. Connect 10 kΩ from RBIAS to AGND.
Common-Mode Level Bias Output for Analog Inputs.
ADC Clock Input—True.
ADC Clock Input—Complement.
Auxiliary ADC Clock Input—True.
Auxiliary ADC Clock Input—Complement.
Auxiliary Clock Input Enable.
Digital Enable (Active Low) to Tristate Output Data Pins.
Output Data 7—True.
Output Data 7—Complement.
Output Data 6—True.
Output Data 6—Complement.
AD9286
TOP VIEW
36
35
34
33
32
31
30
29
28
27
26
25
AVDD
AVDD
CLK+
CLK–
CSB
SDIO/PWDN
SCLK
OE
DRGND
DRVDD
D7+ (MSB)
D7– (MSB)