Datasheet
AD5390/AD5391/AD5392 Data Sheet
Rev. E | Page 8 of 44
AD5390-3/AD5391-3/AD5392-3 SPECIFICATIONS
AV
DD
= 2.7 V to 3.6 V; DV
DD
= 2.7 V to 5.5 V; AGND = DGND = 0 V; REFIN = 1.25 V external. All specifications T
MIN
to T
MAX
,
unless otherwise noted.
Table 4.
Parameter
AD5390-3
1
AD5392-3
1
AD5391-3
1
Unit Test Conditions/Comments
ACCURACY
Resolution 14 12 Bits
Relative Accuracy ±4 ±1 LSB max
Differential Nonlinearity −1/+2 ±1 LSB max Guaranteed monotonic over temperature
Zero-Scale Error 4 4 mV max
Offset Error ±4 ±4 mV max Measured at code 64 in the linear region
Offset Error TC ±5 ±5 µV/°C typ
Gain Error
±0.05
±0.05
% FSR max
At 25°C
±0.1
±0.1
% FSR max
T
MIN
to T
MAX
Gain Temperature Coefficient
2
2 2 ppm FSR/°C typ
DC Crosstalk 1 1 LSB max
REFERENCE INPUT/OUTPUT
Reference Input
2
Reference Input Voltage 1.25 1.25 V ±1% for specified performance
DC Input Impedance 1 1 MΩ min Typically 100 MΩ
Input Current ±1 ±1 µA max Typically ±30 nA
Reference Range 1 V to AV
DD
/2 1 V to AV
DD
/2 V min/max
Reference Output
3
Enabled via internal/external bit in control
register; REF select bit in control register
selects the reference voltage
Output Voltage 1.245/1.255 1.245/1.255 V min/max At ambient, optimized for 1.25 V operation
2.47/2.53 2.47/2.53 V min/max At ambient when 2.5 V reference is selected
Reference TC
±10
±10
ppm max
Temperature range: 25°C to 85°C
±15 ±15 ppm max Temperature range: −40°C to +85°C
Output Impedance 800 800 Ω typ
OUTPUT CHARACTERISTICS
2
Output Voltage Range
4
0/AV
DD
0/AV
DD
V min/max
Short-Circuit Current 40 40 mA max
Load Current ±1 ±1 mA max
Capacitive Load Stability
R
L
= ∞ 200 200 pF max
R
L
= 5 kΩ 1000 1000 pF max
DC Output Impedance 0.6 0.6 Ω max
MONITOR OUTPUT PIN
2
Output Impedance 1000 1000 Ω typ
Three-State Leakage Current 100 100 nA typ
LOGIC INPUTS
2
DV
DD
= 2.7 V to 5.5 V
V
IH
, Input High Voltage 2 2 V min
V
IL
, Input Low Voltage
DVDD > 3.6 V 0.8 0.8 V max
DVDD ≤ 3.6 V 0.6 0.6 V max
Input Current ±10 ±10 µA max Total for all pins. T
A
= T
MIN
to T
MAX
Pin Capacitance 10 10 pF max