AD9639 Analog Devices, Inc., AD9639 Datasheet - Page 15

• Manufacturer Part Number: AD9639
• Description: Quad, 12-bit, 170 Msps/210 Msps Serial Output 1.8 V Adc
• Manufacturer: Analog Devices, Inc.

EQUIVALENT CIRCUITS
CLK+
Figure 28. Equivalent SCLK, RESET, PDWN, PGMx Input Circuit
VIN + x
VIN – x
PDWN,
RESET
PGMx,
SCLK,
CSB
Figure 29. Equivalent CSB Input Circuit
AVDD
Figure 27. Analog Inputs
AVDD
Figure 26. CLK± Inputs
10kΩ
175Ω
AVDD
1.2V
2kΩ
2kΩ
1kΩ
10kΩ
30kΩ
BUF
BUF
BUF
AVDD
26kΩ
AVDD
~1.4V
CLK–
Rev. 0 | Page 15 of 36
RBIAS
Figure 32. Equivalent RBIAS Input/Output Circuit
SDI/SDIO
Figure 31. Equivalent TEMPOUT Output Circuit
Figure 30. Equivalent SDI/SDIO Input Circuit
Figure 33. Equivalent VCM x Output Circuit
VCM x
AVDD
AVDD
250Ω
AVDD
TEMPOUT
175Ω
175Ω
100Ω
30kΩ
AD9639