AD9239 Analog Devices, AD9239 Datasheet - Page 17

• Manufacturer Part Number: AD9239
• Description: Quad, 12-Bit, 170 MSPS/210 MSPS/250 MSPS Serial Output 1.8 V ADC
• Manufacturer: Analog Devices

Specifications of AD9239

• Resolution (bits): 12bit
• # Chan: 4
• Sample Rate: 250MSPS
• Interface: Ser
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: 1.25 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

EQUIVALENT CIRCUITS
CLK+
Figure 37. Equivalent SCLK, PDWN, PGMx, RESET Input Circuit
VIN + x
VIN – x
PDWN,
RESET
PGMx,
SCLK,
CSB
Figure 38. Equivalent CSB Input Circuit
AVDD
Figure 36. Analog Inputs
AVDD
Figure 35. CLK± Inputs
10kΩ
175Ω
AVDD
1.2V
2kΩ
2kΩ
1kΩ
10kΩ
30kΩ
BUF
BUF
BUF
AVDD
26kΩ
AVDD
~1.4V
CLK–
Rev. B | Page 17 of 40
RBIAS
Figure 41. Equivalent RBIAS Input/Output Circuit
SDI/SDIO
Figure 40. Equivalent TEMPOUT Output Circuit
Figure 39. Equivalent SDI/SDIO Input Circuit
Figure 42. Equivalent VCMx Output Circuit
VCMx
AVDD
AVDD
250Ω
AVDD
175Ω
TEMPOUT
175Ω
100Ω
30kΩ
AD9239