ADM1178-1ARMZ-R7(RevPrD) View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
ADM1178-1ARMZ-R7
(Rev.:RevPrD)
(Rev.:RevPrD)
Analog Devices
ADM1178-1ARMZ-R7 Datasheet PDF : 16 Pages
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ADM1178
Preliminary Technical Data
Parameter
MONITORING ACCURACY1
Current Sense Absolute Accuracy
Current Sense Accuracy, TC
VSENSE for ADC full-scale
Voltage Sense Accuracy
VCC for ADC full-scale, low range
VCC for ADC full-scale, high range
I2C Timing3
Low level input voltage, VIL
High level input voltage, VIH
Low level output voltage on SDA, VOL
Output fall time on SDA from VIHMIN to VILMAX
Maximum width of spikes suppressed by input
filtering on SDA and SCL pins
Input current, II, on SDA/SCL when not driving out
a logic low
Input capacitance on SDA/SCL
SCL clock frequency, fSCL
LOW period of the SCL clock
HIGH period of the SCL clock
Setup time for a repeated START condition, tSU;STA
SDA output data hold time, tHD;DAT
Set-up time for a stop condition, tSU;STO
Bus free time between a STOP and a START
condition, tBUF
Capacitive load for each bus line
Min
TBD
−2.3
TBD
−2.5
TBD
−2.8
−3.5
−1.5
−1.5
2.31
20+0.1CB
50
−10
600
1300
600
100
600
1300
Typ
Max
TBD
+2.2
TBD
+2.5
TBD
+2.8
+3.5
±0.01
105
0
+1.5
0
+1.5
6.656
26.6282
0.99
0.4
250
250
+10
5
400
400
Units
%
%
%
%
%
%
%
%/°C
mV
%
%
V
V
V
V
V
ns
ns
µA
pF
kHz
ns
ns
ns
ns
ns
ns
pF
Conditions
VSENSE = 75 mV
VSENSE = 75 mV, @ 0°C to +70°C
VSENSE = 50mV
VSENSE = 50 mV, @ 0°C to +70°C
VSENSE = 25mV
VSENSE = 25mV, @ 0°C to +70°C
VSENSE = 12.5 mV, @ 25°C
VVCC = 3.0 V to 5.5V(VRANGE = 1)
VVCC = 10.8 V to 13.2V(VRANGE = 0)
VRANGE = 1
VRANGE = 0
IOL = 3mA
CB = bus capacitance from SDA to GND
1 Monitoring accuracy is a measure of the error in a code that is read back for a particular voltage/current. This is a combination of amplifier error, reference error and
ADC error.
2The maximum operating voltage is limited to VVCC =14 V which corresponds to an ADC code of 871.
3The following conditions apply to all timing specifications: VBUS =3.3V, TA =25°C. All timings refer to VIHMIN and VILMAX.
Rev. PrD | Page 4 of 16
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