Datasheet

Data Sheet AD5725
Rev. C | Page 3 of 20
SPECIFICATIONS
AV
DD
= +15 V, AV
SS
= −15 V, DGND = 0 V; V
REFP
= +10 V; V
REFN
= −10 V, V
L
= 5 V. All specifications T
MIN
to T
MAX
, unless otherwise noted.
1
Table 1.
Parameter Value Unit Test Conditions/Comments
ACCURACY Outputs unloaded
Resolution 12 Bits
Relative Accuracy (INL) ±0.5 LSB max B grade
±1 LSB max A grade
Differential Nonlinearity (DNL) ±1 LSB max Guaranteed monotonic
Zero-Scale Error ±2 LSB max R
L
= 2 kΩ
Zero-Scale TC
2
±15
ppm FSR/°C typ
R
L
= 2 kΩ
Full-Scale Error ±2 LSB max R
L
= 2 kΩ
Full-Scale TC
2
±20 ppm FSR/°C typ R
L
= 2 kΩ
REFERENCE INPUT
V
REFP
Reference Input Range
3
V
REFN
+ 2.5 V min
AV
DD
− 2.5 V max
Input Current ±2.75 mA max Typically 1.5 mA
V
REFN
Reference Input Range
3
−10 V min
V
REFP
− 2.5 V max
Input Current
2
0 mA max Typically −2 mA
−2.75 mA min
Large Signal Bandwidth
2
160 kHz typ −3 dB, V
REFP
= 0 V to 10 V p-p
OUTPUT CHARACTERISTICS
2
Output Current ±5 mA max R
L
= 2 kΩ, C
L
= 100 pF
DIGITAL INPUTS V
L
= 2.7 V to 5.5 V, JEDEC compliant
V
IH
, Input High Voltage 2.4 V min T
A
= 25°C
V
IL
, Input Low Voltage 0.8 V max T
A
= 25°C
Input Current
2
1 µA max
Input Capacitance
2
8
pF typ
DIGITAL OUTPUTS (SDO)
V
OH
, Output High Voltage
4
V min
I
OH
= 0.4 mA
V
OL
, Output Low Voltage 0.4 V max I
OL
= −1.6 mA
POWER SUPPLY CHARACTERISTICS
Power Supply Sensitivity
2
30 ppm FSR/V max 14.25 V ≤ AV
DD
≤ 15.75 V
AI
DD
3 mA/channel max Outputs unloaded, V
REFP
= 2.5 V, typically 2.125 mA
AI
SS
2.5 mA/channel max Outputs unloaded, typically 1.625 mA
Power Dissipation 270 mW max
1
All supplies can be varied ±5%, and operation is guaranteed. Device is tested with nominal supplies.
2
Guaranteed by design and characterization, not production tested.
3
Operation is guaranteed over this reference range, but linearity is neither tested nor guaranteed.