Datasheet

AD5725 Data Sheet
Rev. C | Page 4 of 20
AV
DD
= +5 V, AV
SS
= −5 V/0 V, DGND = 0 V; V
REFP
= +2.5 V; V
REFN
= −2.5 V/0 V, V
L
= 5 V. All specifications T
MIN
to T
MAX
, unless
otherwise noted.
Table 2.
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
±1 LSB max B grade, AV
SS
= 0 V
1
±2 LSB max A grade, AV
SS
= 0 V
1
Differential Nonlinearity (DNL) ±1 LSB max Guaranteed monotonic
Zero-Scale Error ±5 LSB max AV
SS
= −5 V
±10 LSB max AV
SS
= 0 V
Zero-Scale TC
2
100 ppm FSR/°C typ
Full-Scale Error ±5 LSB max AV
SS
= −5 V
±10 LSB max AV
SS
= 0 V
Full-Scale TC
2
100 ppm FSR/°C typ
REFERENCE INPUT
V
REFP
Reference Input Range
3
V
REFN
+ 2.5
V min
AV
DD
− 2.5 V max
Input Current
2
±0.5 mA max Code 0x0000
V
REFN
Reference Input Range
3
−2.5 V min AV
SS
= −5 V
0 V min AV
SS
= 0 V
V
REFP
− 2.5 V max
Large Signal Bandwidth
2
450 kHz typ −3 dB, V
REFP
= 0 V to 2.5 V p-p
OUTPUT CHARACTERISTICS
2
Output Current ±1.25 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
100 ppm FSR/V typ
AI
DD
2 mA/channel max Outputs unloaded.
AI
SS
1.5 mA/channel max Outputs unloaded, A
VSS
= −5 V
Power Dissipation 70 mW max AV
SS
= −5 V
40 mW max AV
SS
= 0 V
1
For single supply operation only (V
REFN
= 0 V, AV
SS
= 0 V): Due to internal offset errors, INL and DNL are measured beginning at code 0x005.
2
Guaranteed by design and characterization, not production tested.
3
Operation is guaranteed over this reference range, but linearity is neither tested nor guaranteed.