Datasheet

Data Sheet AD5381
Rev. D | Page 5 of 40
Parameter AD5381-5
1
Unit Test Conditions/Comments
LOGIC INPUTS (SDA, SCL ONLY)
3
V
IH
, Input High Voltage 0.7 × DVDD V min SMBus compatible at DVDD < 3.6 V
V
IL
, Input Low Voltage
0.3 × DVDD
V max
SMBus compatible at DVDD < 3.6 V
I
IN
, Input Leakage Current ±1 µA max
V
HYST
, Input Hysteresis
0.05 × DVDD
V min
C
IN
, Input Capacitance
8
pF typ
Glitch Rejection 50 ns max Input filtering suppresses noise spikes of less than 50 ns
LOGIC OUTPUTS (
BUSY
, SDO)
3
V
OL
, Output Low Voltage 0.4 V max DVDD = 5 V ± 10%, sinking 200 µA
V
OH
, Output High Voltage DVDD – 1 V min DVDD = 5 V ± 10%, sourcing 200 µA
V
OL
, Output Low Voltage 0.4 V max DVDD = 2.7 V to 3.6 V, sinking 200 µA
V
OH
, Output High Voltage DVDD – 0.5 V min DVDD = 2.7 V to 3.6 V, sourcing 200 µA
High Impedance Leakage Current
±1
µA max
SDO only
High Impedance Output Capacitance
5
pF typ
SDO only
LOGIC OUTPUT (SDA)
3
V
OL
, Output Low Voltage 0.4 V max I
SINK
= 3 mA
0.6 V max I
SINK
= 6 mA
Three-State Leakage Current ±1 µA max
Three-State Output Capacitance 8 pF typ
POWER REQUIREMENTS
AVDD 4.5/5.5 V min/max
DVDD 2.7/5.5 V min/max
Power Supply Sensitivity
3
∆Midscale/∆ΑV
DD
–85
dB typ
AI
DD
0.375
mA/channel max
Outputs unloaded, boost off; 0.25 mA/channel typ
0.475 mA/channel max Outputs unloaded, boost on.; 0.325 mA /channel typ
DI
DD
1 mA max V
IH
= DVDD, V
IL
= DGND
AI
DD
(Power-Down) 20 µA max Typically 100 nA
DI
DD
(Power-Down) 20 µA max Typically 1 µA
Power Dissipation 80 mW max Outputs unloaded, boost off, AVDD = DVDD = 5 V
1
AD5381-5 is calibrated using an external 2.5 V reference. Temperature range for all versions: –40°C to +85°C.
2
Accuracy guaranteed from VOUT = 10 mV to AVDD – 50 mV.
3
Guaranteed by characterization, not production tested.
4
Default on the AD5381-5 is 2.5 V. Programmable to 1.25 V via CR10 in the AD5381 control register; operating the AD5381-5 with a 1.25 V reference will lead to
degraded accuracy specifications.