ADM1026
ELECTRICAL CHARACTERISTICS TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted. (Note 1, 2, and 3)
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
POWER SUPPLY
Supply Voltage, 3.3 V STBY
3.0
3.3
5.5
V
Supply Current, ICC
TEMPERATURE−TO−DIGITAL CONVERTER
Interface inactive, ADC active
2.5
4.0
mA
Internal Sensor Accuracy
±3.0
°C
Resolution
±1.0
°C
External Diode Sensor Accuracy
Resolution
0°C < TD < 100°C
±3.0
°C
±1.0
°C
Remote Sensor Source Current
High level
Low level
90
mA
5.5
ANALOG−TO−DIGITAL CONVERTER
(Including MUX and ATTENUATORS)
Total Unadjusted Error (TUE) (Note 4)
±2.0
%
Differential Non−linearity (DNL)
±1.0
LSB
Power Supply Sensitivity
±0.1
%/V
Conversion Time
(Analog Input or Internal Temperature) (Note 5)
11.38 12.06
ms
Conversion Time (External Temperature) (Note 5)
34.13 36.18
ms
Input Resistance (+5.0 VIN, VCCP, AIN0 − AIN5)
Input Resistance of +12 VIN pin
Input Resistance of −12 VIN pin
Input Resistance (AIN6 − AIN9)
Input Resistance of VBAT pin (Note 4)
VBAT Current Drain (when measured)
VBAT Current Drain (when not measured)
ANALOG OUTPUT (DAC)
CR2032 battery life >10 years
80
100
120
kW
70
100
115
kW
8.0
10
12
kW
5.0
MW
80
100
120
kW
80
100
nA
6.0
nA
Output Voltage Range
0
–2.5
V
Total Unadjusted Error (TUE)
Zero Error
IL = 2 mA
No load
±5.0
%
1.0
LSB
Differential Non−linearity (DNL)
Monotonic by design
±1.0
LSB
Integral Non−linearity
±0.5
LSB
Output Source Current
2.0
mA
Output Sink Current
1.0
mA
REFERENCE OUTPUT
Output Voltage
Bit 2 of Register 07h = 0
Bit 2 of Register 07h = 1
1.8
1.82
1.84
V
2.47
2.50
2.53
Load Regulation (ISINK = 2 mA)
Load Regulation (ISOURCE = 2 mA)
Short Circuit Current
Output Current Source
VCC = 3.3 V
0.15
%
0.15
%
25
mA
2.0
mA
Output Current Sink
2.0
mA
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