Datasheet

Data Sheet AD9255
Rev. C | Page 7 of 44
Parameter Temperature Min Typ Max Unit
LOGIC INPUT (CSB)
1
High Level Input Voltage Full 1.22 SVDD V
Low Level Input Voltage Full 0 0.6 V
High Level Input Current Full −10 +10 µA
Low Level Input Current Full 40 132 µA
Input Resistance Full 26 kΩ
Input Capacitance Full 2 pF
LOGIC INPUT (SCLK/DFS)
2
High Level Input Voltage Full 1.22 SVDD V
Low Level Input Voltage Full 0 0.6 V
High Level Input Current (VIN = 1.8 V)
Full
−92
−135
µA
Low Level Input Current Full −10 +10 µA
Input Resistance Full 26 kΩ
Input Capacitance Full 2 pF
LOGIC INPUT/OUTPUT (SDIO/DCS)
1
High Level Input Voltage Full 1.22 SVDD V
Low Level Input Voltage Full 0 0.6 V
High Level Input Current Full −10 +10 µA
Low Level Input Current
Full
38
128
µA
Input Resistance Full 26 kΩ
Input Capacitance Full 5 pF
High Level Output Voltage Full 1.70 V
Low Level Output Voltage Full 0.2 V
LOGIC INPUTS (OEB, PDWN, DITHER, LVDS, LVDS_RS)
2
High Level Input Voltage Full 1.22 2.1 V
Low Level Input Voltage Full 0 0.6 V
High Level Input Current (VIN = 1.8 V) Full −90 −134 µA
Low Level Input Current Full −10 +10 µA
Input Resistance Full 26 kΩ
Input Capacitance Full 5 pF
DIGITAL OUTPUTS (DRVDD = 1.8 V)
CMOS Mode
High Level Output Voltage
I
OH
= 50 µA Full 1.79 V
I
OH
= 0.5 mA Full 1.75 V
Low Level Output Voltage
I
OL
= 1.6 mA Full 0.2 V
I
OL
= 50 µA Full 0.05 V
LVDS Mode
ANSI Mode
Differential Output Voltage (V
OD
) Full 290 345 400 mV
Output Offset Voltage (V
OS
) Full 1.15 1.25 1.35 V
Reduced Swing Mode
Differential Output Voltage (V
OD
) Full 160 200 230 mV
Output Offset Voltage (V
OS
) Full 1.15 1.25 1.35 V
1
Pull-up.
2
Pull-down.