Datasheet
Data Sheet AD5390/AD5391/AD5392
Rev. E | Page 5 of 44
SPECIFICATIONS
AD5390-5/AD5391-5/AD5392-5 SPECIFICATIONS
AV
DD
= 4.5 V to 5.5 V; DV
DD
= 2.7 V to 5.5 V; AGND = DGND = 0 V; REFIN = 2.5 V external. All specifications T
MIN
to T
MAX
,
unless otherwise noted.
Table 2.
Parameter
AD5390-5
1
AD5392-5
1
AD5391-5
1
Unit Test Conditions/Comments
ACCURACY
Resolution 14 12 Bits
Relative Accuracy ±3 ±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 32 in the linear region
(AD5390-5/AD5392-5); measured at Code 8 in
the linear region (AD5391-5)
Offset Error TC ±5 ±5 µV/°C typ
Gain Error ±0.05 ±0.05 % FSR max At 25°C T
MIN
to T
MAX
±0.06 ±0.06 % FSR max
Gain Temperature Coefficient
2
2 2 ppm FSR/°C typ
DC Crosstalk
2
1 1 LSB max
REFERENCE INPUT/OUTPUT
Reference Input
2
Reference Input Voltage 2.5 2.5 V ±1% for specified performance,
AV
DD
= 2 × REFIN + 50 mV
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 2.495/2.505 2.495/2.505 V min/max At ambient, optimized for 2.5 V operation
1.22/1.28 1.22/1.28 V min/max At ambient when 1.25 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
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