Datasheet

Data Sheet AD5755-1
Rev. E | Page 7 of 52
Parameter
1
Min Typ Max Unit Test Conditions/Comments
REFERENCE INPUT/OUTPUT
Reference Input
2
Reference Input Voltage 4.95 5 5.05 V For specified performance
DC Input Impedance 45 150 MΩ
Reference Output
Output Voltage 4.995 5 5.005 V T
A
= 25°C
Reference TC
2
−10 ±5 +10 ppm/°C
Output Noise (0.1 Hz to 10 Hz)
2
7
µV p-p
Noise Spectral Density
2
100 nV/√Hz At 10 kHz
Output Voltage Drift vs. Time
2
180 ppm Drift after 1000 hours, T
J
= 150°C
Capacitive Load
2
1000 nF
Load Current 9 mA
See
Figure 64
Short-Circuit Current 10 mA
Line Regulation
2
3 ppm/V
See
Figure 65
Load Regulation
2
95 ppm/mA
See
Figure 64
Thermal Hysteresis
2
160 ppm First temperature cycle
5 ppm Second temperature cycle
DC-TO-DC
Switch
Switch On Resistance 0.425 Ω
Switch Leakage Current 10 nA
Peak Current Limit 0.8 A
Oscillator
Oscillator Frequency 11.5 13 14.5 MHz This oscillator is divided down to give the dc-to-dc
converter switching frequency
Maximum Duty Cycle 89.6 % At 410 kHz dc-to-dc switching frequency
DIGITAL INPUTS
2
JEDEC compliant
V
IH
, Input High Voltage 2 V
V
IL
, Input Low Voltage 0.8 V
Input Current −1 +1 µA Per pin
Pin Capacitance 2.6 pF Per pin
DIGITAL OUTPUTS
2
SDO, ALERT
V
OL
, Output Low Voltage 0.4 V Sinking 200 µA
V
OH
, Output High Voltage DVDD − 0.5 V Sourcing 200 µA
High Impedance Leakage
Current
−1 +1 µA
High Impedance Output
Capacitance
2.5 pF
FAULT
V
OL
, Output Low Voltage 0.4 V 10 kΩ pull-up resistor to DV
DD
V
OL
, Output Low Voltage
0.6
V
At 2.5 mA
V
OH
, Output High Voltage 3.6 V 10 kΩ pull-up resistor to DV
DD
POWER REQUIREMENTS
AV
DD
9 33 V
AV
SS
−26.4 −10.8/0 V
DV
DD
2.7 5.5 V
AV
CC
4.5 5.5 V