ADM1191 Просмотр технического описания (PDF) - Analog Devices
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ADM1191 Datasheet PDF : 16 Pages
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ADM1191
SPECIFICATIONS
VCC = 3.15 V to 26 V; TA = −40°C to +85°C; typical values at TA = 25°C, unless otherwise noted.
Table 1.
Parameter
Min
Typ
VCC PIN
Operating Voltage Range, VVCC
3.15
Supply Current, ICC
1.7
Undervoltage Lockout, VUVLO
2.8
Undervoltage Lockout Hysteresis, VUVLOHYST
80
CONV PIN
Input Current, ICONV
−2
Logic Low Threshold, VCONVL
Logic High Threshold, VCONVH
1.4
MONITORING ACCURACY1
Current Sense Absolute Accuracy
−1.45
Max Unit Conditions
26
V
2
mA
V
VCC rising
mV
+2
μA
1.2
V
mV
+1.45 %
VSENSE = 75 mV
0°C to +70°C
−1.8
+1.8 %
VSENSE = 50 mV
0°C to +70°C
−2.8
+2.8 %
VSENSE = 25 mV
0°C to +70°C
−5.7
+5.7 %
VSENSE = 12.5 mV
0°C to +70°C
−1.5
+1.5 %
VSENSE = 75 mV
0°C to +85°C
−1.8
+1.8 %
VSENSE = 50 mV
0°C to +85°C
−2.95
+2.95 %
VSENSE = 25 mV
0°C to +85°C
−6.1
+6.1 %
VSENSE = 12.5 mV
0°C to +85°C
−1.95
+1.95 %
VSENSE = 75 mV
−40°C to +85°C
−2.45
+2.45 %
VSENSE = 50 mV
−40°C to +85°C
−3.85
+3.85 %
VSENSE = 25 mV
−40°C to +85°C
−6.7
+6.7 %
VSENSE = 12.5 mV
−40°C to +85°C
VSENSE for ADC Full Scale
Voltage Accuracy
VCC for ADC Full Scale,
Low Range (VRANGE = 1)
VCC for ADC Full Scale,
High Range (VRANGE = 0)
SENSE PIN
Input Current, ISENSE
−0.85
−0.9
−0.85
−0.9
−0.9
−1.15
−1
105.84
mV
6.65
26.52
+0.85 %
+0.9 %
+0.85 %
+0.9 %
+0.9 %
+1.15 %
V
V
+1
μA
This is an absolute value to be used
when converting ADC codes to current
readings; any inaccuracy in this value is
factored into absolute current accuracy
values (see specs for Current Sense
Absolute Accuracy)
VCC = 3.0 V to 5.5 V 0°C to +70°C
(low range)
VCC = 10.8 V to
0°C to +70°C
16.5 V (high range)
VCC = 3.0 V to 5.5 V 0°C to +85°C
(low range)
VCC = 10.8 V to
0°C to +85°C
16.5 V (high range)
VVCC = 3.0 V to 5.5 V −40°C to +85°C
(low range)
VVCC = 10.8 V to
−40°C to +85°C
16.5 V (high range)
These are absolute values to be used
when converting ADC codes to voltage
readings; any inaccuracy in these values
is factored into voltage accuracy values
(see specs for Voltage Accuracy)
VSENSE = VVCC
Rev. 0 | Page 3 of 16
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