ADM1024 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
ADM1024 Datasheet PDF : 32 Pages
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ADM1024–SPECIFICATIONS1, 2
(TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted.)
Parameter
Min
POWER SUPPLY
Supply Voltage, VCC
2.8
Supply Current, ICC
TEMPERATURE-TO-DIGITAL CONVERTER
Internal Sensor Accuracy
Resolution
External Diode Sensor Accuracy
Resolution
Remote Sensor Source Current
80
4
ANALOG-TO-DIGITAL CONVERTER
(INCLUDING MUX AND ATTENUATORS)
Total Unadjusted Error, TUE (12 VIN)3
TUE (AIN, VCCP, 2.5 VIN, 5 VIN)
Differential Nonlinearity, DNL
Power Supply Sensitivity
Conversion Time (Analog Input or Int. Temp.)
Conversion Time (External Temperature)4
Input Resistance (2.5 V, 5 V, 12 V, VCCP1, VCCP2)
80
Input Resistance (AIN1, AIN2)
ANALOG OUTPUT
Output Voltage Range
0
Total Unadjusted Error, TUE
Full-Scale Error
Zero-Scale Error
Differential Nonlinearity, DNL
Integral Nonlinearity
Output Source Current
Output Sink Current
FAN RPM-TO-DIGITAL CONVERTER
Accuracy
Full-Scale Count
FAN1 and FAN2 Nominal Input RPM5
Internal Clock Frequency
19.8
DIGITAL OUTPUTS NTEST_OUT
Output High Voltage, VOH
2.4
Output Low Voltage, VOL
OPEN-DRAIN DIGITAL OUTPUTS6
(INT, THERM, RESET)
Output Low Voltage, VOL
High Level Output Current, IOH
RESET and CI Pulsewidth
20
OPEN-DRAIN SERIAL DATA BUS OUTPUT (SDA)
Output Low Voltage, VOL
High Level Output Current, IOH
Typ Max Unit Test Conditions/Comments
3.30 5.5
1.4 3.5
1.0
45 145
V
mA Interface Inactive, ADC Active
mA ADC Inactive, DAC Active
µA Shutdown Mode
± 3 °C 0°C ≤ TA ≤ 100°C
± 2 °C TA = 25°C
±1
°C
± 5 °C 0°C ≤ TA ≤ 100°C
±3
°C 25°C
±1
°C
110 150 µA High Level
6.5 9
µA Low Level
±4 %
±3 %
± 1 LSB
±1
%/V
754.8 856.8 µs 0°C ≤ TA ≤ 100°C4
9.6
ms
140 200 kΩ
5
MΩ
2.5 V
± 3 % IL = 2 mA
±1 ±5 %
2
LSB No Load
± 1 LSB Monotonic by Design
±1
LSB
2
mA
1
mA
± 12
255
8800
4400
2200
1100
22.5 25.2
% 0°C ≤ TA ≤ 100°C
rpm Divisor = 1, Fan Count = 153
rpm Divisor = 2, Fan Count = 153
rpm Divisor = 3, Fan Count = 153
rpm Divisor = 4, Fan Count = 153
kHz 0°C ≤ TA ≤ 100°C
V IOUT = +3.0 mA, VCC = 2.85 V – 3.60 V
0.4 V IOUT = –3.0 mA, VCC = 2.85 V – 3.60 V
0.4 V IOUT = –3.0 mA, VCC = 3.60 V
0.1 100 µA VOUT = VCC
45
ms
0.4 V IOUT = –3.0 mA, VCC = 2.85 V – 3.60 V
0.1 100 µA VOUT = VCC
–2–
REV. B
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