Datasheet

AD5372/AD5373
Rev. C | Page 4 of 28
SPECIFICATIONS
DV
CC
= 2.5 V to 5.5 V; V
DD
= 9 V to 16.5 V; V
SS
= −16.5 V to −8 V; VREF0 = VREF1 = 3 V; AGND = DGND = SIGGNDx = 0 V;
C
L
= open circuit; R
L
= open circuit; gain (M), offset (C), and DAC offset registers at default values; all specifications T
MIN
to T
MAX
,
unless otherwise noted.
Table 2.
Parameter
AD5372
1
B Version
AD5373
1
B Version
Unit Test Conditions/Comments
2
ACCURACY
Resolution 16 14 Bits
Integral Nonlinearity (INL) ±4 ±1 LSB max
Differential Nonlinearity (DNL) ±1 ±1 LSB max
Guaranteed monotonic by design over
temperature
Zero-Scale Error ±10 ±10 mV max Before calibration
Full-Scale Error ±10 ±10 mV max Before calibration
Gain Error 0.1 0.1 % FSR Before calibration
Zero-Scale Error
2
1 1 LSB typ After calibration
Full-Scale Error
2
1 1 LSB typ After calibration
Span Error of Offset DAC ±35 ±35 mV max See the Offset DACS section for details
VOUTx Temperature Coefficient 5 5 ppm FSR/°C typ Includes linearity, offset, and gain drift
DC Crosstalk
2
100 100 μV max
Typically 20 μV; measured channel at midscale,
full-scale change on any other channel
REFERENCE INPUTS (VREF0, VREF1)
2
VREFx Input Current ±10 ±10 μA max Per input; typically ±30 nA
VREFx Range 2/5 2/5 V min/V max ±2% for specified operation
SIGGND INPUTS (SIGGND0 TO SIGGND3)
2
DC Input Impedance 50 50 kΩ min Typically 55 kΩ
Input Range ±0.5 ±0.5 V min/V max
SIGGNDx Gain 0.995/1.005 0.995/1.005 min/max
OUTPUT CHARACTERISTICS
2
Output Voltage Range V
SS
+ 1.4 V
SS
+ 1.4 V min I
LOAD
= 1 mA
V
DD
− 1.4 V
DD
− 1.4 V max I
LOAD
= 1 mA
Nominal Output Voltage Range −4 to +8 −4 to +8 V min/V max
Short-Circuit Current 15 15 mA max VOUTx to DV
CC
, V
DD
, or V
SS
Load Current ±1 ±1 mA max
Capacitive Load 2200 2200 pF max
DC Output Impedance 0.5 0.5 Ω max
DIGITAL INPUTS JEDEC compliant
Input High Voltage 1.7 1.7 V min DV
CC
= 2.5 V to 3.6 V
2.0 2.0 V min DV
CC
= 3.6 V to 5.5 V
Input Low Voltage 0.8 0.8 V max DV
CC
= 2.5 V to 5.5 V
Input Current ±1 ±1 μA max
Excluding CLR
pin
CLR High Impedance Leakage Current
±20 ±20 μA max
Input Capacitance
2
10 10 pF max
DIGITAL OUTPUTS (SDO, BUSY)
Output Low Voltage 0.5 0.5 V max Sinking 200 μA
Output High Voltage (SDO) DV
CC
− 0.5 DV
CC
− 0.5 V min Sourcing 200 μA
SDO High Impedance Leakage Current ±5 ±5 μA max
High Impedance Output Capacitance
2
10 10 pF typ