ADM1026 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
ADM1026 Datasheet PDF : 56 Pages
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ADM1026
SPECIFICATIONS1, 2, 3
Table 1. TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted.
Parameter
Min
POWER SUPPLY
Supply Voltage, 3.3 V STBY, 3.3 V MAIN
3.0
Supply Current, ICC
TEMPERATURE-TO-DIGITAL CONVERTER
Internal Sensor Accuracy
Resolution
External Diode Sensor Accuracy
Resolution
Remote Sensor Source Current
ANALOG-TO-DIGITAL CONVERTER (including MUX and attenuators)
Total Unadjusted Error (TUE)4
Differential Nonlinearity (DNL)
Power Supply Sensitivity
Conversion Time (Analog Input or Internal Temperature)5
Conversion Time (External Temperature)5
Input Resistance (+5 VIN, VCCP, AIN0 − AIN5)
80
Input Resistance of +12 VIN pin
70
Input Resistance of −12 VIN pin
8
Input Resistance (AIN6 − AIN9)
5
Input Resistance of VBAT pin4
80
VBAT Current Drain (when measured)
VBAT Current Drain (when not measured)
ANALOG OUTPUT (DAC)
Output Voltage Range
Total Unadjusted Error (TUE)
Zero Error
Differential Nonlinearity (DNL)
Integral Nonlinearity
Output Source Current
Output Sink Current
REFERENCE OUTPUT
Output Voltage
1.8
Output Voltage
2.47
Load Regulation (ISINK = 2 mA)
Load Regulation (ISOURCE = 2 mA)
Short Circuit Current
Output Current Source
Output Current Sink
FAN RPM-TO-DIGITAL CONVERTER6
Accuracy
Full-Scale Count
FAN0 to FAN7 Nominal Input RPM5
Internal Clock Frequency
20
OPEN DRAIN O/Ps, PWM, GPIO0 to 16
Output High Voltage, VOH
2.4
Typ Max Test Conditions/Comments Unit
3.3
5.5
V
2.5
4.0
Interface inactive, ADC active mA
±3
°C
±1
°C
±3
0°C < TD < 100°C
°C
±1
°C
90
High level
µA
5.5
Low level
µA
±2
%
±1
LSB
±0.1
%/V
11.38 12.06
ms
34.13 36.18
ms
100 120
kΩ
100 115
kΩ
10
12
kΩ
MΩ
100 120
kΩ
80
100 CR2032 battery life >10 years nA
6
nA
0–2.5
V
±5
IL = 2 mA
%
1
No load
LSB
±1
Monotonic by design
LSB
±0.5
LSB
2
mA
1
mA
1.82 1.84 Bit 2 of Register 07h = 0
V
2.50 2.53 Bit 2 of Register 07h = 1
V
0.15
%
0.15
%
25
VCC = 3.3 V
mA
2
mA
2
mA
±12
%
255
8800
Divisor = 1, fan count = 153 RPM
4400
Divisor = 2, fan count = 153 RPM
2200
Divisor = 4, fan count = 153 RPM
1100
Divisor = 8, fan count = 153 RPM
22.5 25
kHz
IOUT = 3.0 mA, VCC = 3.3 V
V
Rev. A | Page 3 of 56
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