ISL28025 Datasheet, PDF (7/48 Pages) Intersil Corporation – Precision Digital Power Monitor with Real Time Alerts

ISL28025
Electrical Specifications T_A = +25°C, I2CVCC = V_CC = 3.3V, V_INP = V_BUS = 12V, V_SENSE = V_INP - V_INM = 80mV, Aux V = 3V, Conversion
Time: Aux = Primary = 2.05ms, Internal AVG Aux = Primary = 128, unless otherwise specified. All voltages with respect to GND pin. Temperature limits
established by characterization. (Continued)
PARAMETER
DESCRIPTION
TEST CONDITIONS
MIN
MAX
(Note 6)
TYP
(Note 6) UNIT
Vbus_TC
V_BUS Offset Voltage vs Temperature
ISL28025FI60Z; T = -40°C to +125°C
ISL28025FI12Z; T = -40°C to +125°C
±4
±100 µV/°C
±1
±100 µV/°C
Vbus_Vco
Vbus_PSRR
V_BUS Voltage Coefficient
V_BUS Vos vs Power Supply
Zin_Vbus
Input Impedance V_BUS
ISL28025FI60Z;
V_CC = ±10% of V_CC nominal
ISL28025FI12Z
V_CC = ±10% of V_CC nominal
ISL28025FI60Z
ISL28025FI12Z
50
±500
±125
600
150
ppm/V
µV/V
µV/V
kΩ
kΩ
AUX CHANNEL
Vauxv
Usable AVXV Voltage Measurement
Range
0
VCC
V
Step_auxv 1LSB Step AUXV Voltage
100
µV
Vauxv_vos
Vauxv_TC
Vauxv_PSRR
Zin_auxv
V_AUXV Offset Voltage
V_AUXV Offset Voltage vs Temperature
V_AUXV Vos vs Power Supply
Auxv Input Impedance
T = -40°C to +125°C
V_CC = ±10% of V_CC nominal
Input path selected
±0.3
±0.2
±1
200
±4
mV
±22
µV/°C
mV/V
kΩ
Input path disabled
10
MΩ
ADC PARAMETERS
ADC Resolution
16
Bits
Primary Shunt Voltage Gain Error
±0.05
±0.25
%
T = -40°C to +125°C
0
±60 ppm/°C
Primary Bus Voltage Gain Error
±0.05
±0.25
%
T = -40°C to +125°C
10
±70 ppm/°C
Aux Bus Voltage Gain Error
±0.05
±0.25
%
T = -40°C to +125°C
10
±65 ppm/°C
Differential Nonlinearity
±1
LSB
ADC TIMING
t_{s Power-Up} ADC Conversion Time Resolution
ADC[2:0] = 0h
ADC[2:0] = 1h
64
70.4
µs
128
140.8
µs
ADC[2:0] = 2h
256
281.6
µs
ADC[2:0] = 3h
512
563.2
µs
ADC[2:0] = 4, 5h
1.024
1.126
ms
ADC[2:0] = 6, 7h
2.048
2.253
ms
Submit Document Feedback
7
FN8388.4
February 19, 2016