Analog Devices AD7195 Manual page 4

AD7195
Parameter
External Clock
@ 50 Hz, 60 Hz
@ 50 Hz
@ 60 Hz
ANALOG INPUTS
Differential Input Voltage
Ranges
Absolute AIN Voltage Limits
Unbuffered Mode
Buffered Mode
Analog Input Current
Buffered Mode
2
Input Current
Input Current Drift
Unbuffered Mode
Input Current
Input Current Drift
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
BRIDGE POWER-DOWN SWITCH
R
ON
2
Allowable Current
BURNOUT CURRENTS
AIN Current
DIGITAL OUTPUTS (ACXx, ACXx )
Output High Voltage, V
Output Low Voltage, V
INTERNAL/EXTERNAL CLOCK
Internal Clock
Frequency
Duty Cycle
2
External Clock/Crystal
Frequency
Input Low Voltage V
Input High Voltage, V
Input Current
Downloaded from Elcodis.com electronic components distributor
Min Typ
100
67
95
95
±V /gain
REF
−(AV −
DD
1.25 V)/gain
2
AGND − 0.05
AGND + 0.25
−2
−4.5
±5
±5
±1
±0.05
±1.6
1 AV
DD
GND − 0.05
7
±0.03
±1.3
2
Same as for
analog inputs
95
0.3
±2
2815
500
2
4
OH
2
OL
4.72
50:50
2.4576 4.9152
INL
2.5
INH
3.5
−10
Max Unit
dB
dB
dB
dB
V
+(AV − V
DD
1.25 V)/gain
AV + 0.05 V
DD
AV − 0.25 V
DD
+2 nA
+4.5 nA
pA/°C
μA/V
μA/V
nA/V/°C
nA/V/°C
AV V
DD
AV + 0.05 V
DD
μA/V
nA/V/°C
nA/V/°C
dB
0.6 V
°C
Codes/°C
10 Ω
30 mA
nA
V
0.4 V
5.12 MHz
%
5.12 MHz
0.8 V
0.4 V
V
V
+10 μA
Rev. 0 | Page 4 of 44
1
Test Conditions/Comments
10 Hz output data rate, 50 ± 1 Hz, 60 ± 1 Hz
6
50 Hz output data rate, REJ60 = 1, 50 ± 1 Hz, 60 ± 1 Hz
50 Hz output data rate, 50 ± 1 Hz
60 Hz output data rate, 60 ± 1 Hz
VREF = REFIN(+) − REFIN(−), gain = 1 to 128
Gain > 1
Gain = 1
Gain > 1
Gain = 1, input current varies with input voltage
Gain > 1
External clock
Internal clock
REFIN = REFIN(+) − REFIN(−). 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
Continuous current
Analog inputs must be buffered and chop disabled
AV = 5 V, I = 200 μA
DD SOURCE
AV = 5 V, I = 800 μA
DD SINK
DV = 5 V
DD
DV = 3 V
DD
DV = 3 V
DD
DV = 5 V
DD