AD9484 Analog Devices, AD9484 Datasheet - Page 13

• Manufacturer Part Number: AD9484
• Description: 8-Bit, 500 MSPS, 1.8 V Analog-to-Digital Converter
• Manufacturer: Analog Devices

Specifications of AD9484

• Resolution (bits): 8bit
• # Chan: 1
• Sample Rate: 500MSPS
• Interface: Par
• Analog Input Type: Diff-Bip
• Ain Range: 1.5 V p-p,Bip 0.75V
• Adc Architecture: Pipelined
• Pkg Type: CSP

EQUIVALENT CIRCUITS
VIN+
VIN+
CML
CLK+
Figure 21. Analog Input DC Equivalent Circuit (V
Figure 22. Equivalent SCLK/DFS, PDWN Input Circuit
SCLK/DFS
AVDD
AVDD
AVDD
AVDD
Figure 23. Analog Input AC EquivalentCircuit
VIN+
VIN–
CONTROLLED
SPI
DRVDD
Figure 20. Clock Inputs
15kΩ
350Ω
AVDD
0.9V
1.3pF
500Ω
500Ω
15kΩ
30kΩ
A
A
1kΩ
IN
IN
+
–
DRVDD
AVDD
CML
= ~1.7 V)
DC
V
BOOST
CLK–
Rev. A | Page 13 of 24
Figure 25. LVDS Outputs (Dx+, Dx−, OR+, OR−, DCO+, DCO−)
SDIO
VREF
Figure 26. Equivalent VREF Input/Output Circuit
CSB
DRVDD
Figure 27. Equivalent SDIO Input Circuit
Figure 24. Equivalent CSB Input Circuit
AVDD
DRVDD
Dx–
V+
V–
350Ω
DRVDD
350Ω
DRVDD
(00)
DRVDD
30kΩ
(11)
SPI CTRL V
00 = INTERNAL V
01 = IMPORT V
10 = EXPORT V
11 = NOT USED
30kΩ
20kΩ
(01)
(10)
NOT USED
V–
Dx+
V+
REF
DRVDD
REF
REF
SELECT
REF
CTRL
AD9484