AD9643 Analog Devices, AD9643 Datasheet - Page 22

• Manufacturer Part Number: AD9643
• Description: 14-Bit, 170/210/250 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)
• Manufacturer: Analog Devices

Specifications of AD9643

• Resolution (bits): 14bit
• # Chan: 2
• Sample Rate: 250MSPS
• Interface: LVDS,Par
• Analog Input Type: Diff-Bip
• Ain Range: 1.75 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD9643
EQUIVALENT CIRCUITS
CLK+
AVDD
SDIO
Figure 39. Equivalent Analog Input Circuit
Figure 41. Equivalent LVDS Output Circuit
DATAOUT–
Figure 40. Equivalent Clock lnput Circuit
Figure 42. Equivalent SDIO Circuit
VIN
V+
V–
DRVDD
15kΩ
AVDD
DRVDD
AVDD
0.9V
26kΩ
15kΩ
350Ω
V–
DATAOUT+
V+
AVDD
CLK–
Rev. B | Page 22 of 36
SCLK, PDWN,
Figure 43. Equivalent SCLK, PDWN, or OEB Input Circuit
OR OEB
OEB
CSB
Figure 45. Equivalent SYNC Input Circuit
SYNC
OR
Figure 44. Equivalent CSB Input Circuit
AVDD
AVDD
0.9V
26kΩ
16kΩ
26kΩ
350Ω
AVDD
350Ω
0.9V
Data Sheet