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Parameter
REFERENCE INPUT
REFIN Voltage
Absolute REFIN Voltage
2
Limits
Average Reference Input
Current
Average Reference Input
Current Drift
Normal Mode Rejection
Common-Mode
Rejection
Reference Detect Levels
TEMPERATURE SENSOR
Accuracy
Sensitivity
BURNOUT CURRENTS
AIN Current
DIGITAL OUTPUTS (P0 to P3)
Output High Voltage, V
Output Low Voltage, V
Floating-State Leakage
2
Current
Floating-State Output
Capacitance
INTERNAL/EXTERNAL CLOCK
Internal Clock
Frequency
Duty Cycle
External Clock/Crystal
Frequency
Input Low Voltage, V
Input High Voltage, V
Input Current
LOGIC INPUTS
Input High Voltage, V
Input Low Voltage, V
2
Hysteresis
Input Currents
LOGIC OUTPUT (DOUT/ RDY )
Output High Voltage, V
Output Low Voltage, V
Floating-State Leakage
Current
Floating-State Output
Capacitance
Data Output Coding
Downloaded from
Elcodis.com
electronic components distributor
Min
Typ
1
AGND − 0.05
4.5
±0.03
±1.3
2
Same as for
analog inputs
100
0.3
±2
2815
500
AV
− 0.6
OH
DD
4
OL
−100
10
4.72
50:50
2.4576
4.9152
INL
2.5
INH
3.5
−10
2
2
INH
2
INL
0.1
−10
2
DV
− 0.6
OH
DD
4
2
OL
−10
10
Offset binary
Max
Unit
AV
V
DD
AV
+ 0.05
V
DD
μA/V
nA/V/°C
nA/V/°C
dB
0.6
V
°C
Codes/°C
nA
V
V
0.4
V
0.4
V
+100
nA
pF
5.12
MHz
%
5.12
MHz
0.8
V
0.4
V
V
V
+10
μA
V
0.8
V
0.25
V
+10
μA
V
V
0.4
V
0.4
V
+10
μA
pF
Rev. 0 | Page 5 of 56
AD7194
1
Test Conditions/Comments
REFIN = REFINx(+) − REFINx(−), the
differential input must be limited to
±(AV
− 1.25 V)/gain when gain > 1
DD
External clock
Internal clock
Applies after user calibration at 25°C
Bipolar mode
Analog inputs must be buffered and chop
disabled
AV
= 3 V, I
= 100 μA
DD
SOURCE
AV
= 5 V, I
= 200 μA
DD
SOURCE
AV
= 3 V, I
= 100 μA
DD
SINK
AV
= 5 V, I
= 800 μA
DD
SINK
DV
= 5 V
DD
DV
= 3 V
DD
DV
= 3 V
DD
DV
= 5 V
DD
DV
= 3 V, I
= 100 μA
DD
SOURCE
DV
= 5 V, I
= 200 μA
DD
SOURCE
DV
= 3 V, I
= 100 μA
DD
SINK
DV
= 5 V, I
= 1.6 mA
DD
SINK
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