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ADM1022 Datasheet(PDF) 2 Page - Analog Devices

Part No. ADM1022
Description  Low-Cost PC Temperature Monitor and Fan Control ASIC
Download  19 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADM1022 Datasheet(HTML) 2 Page - Analog Devices

 
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REV. 0
–2–
ADM1022–SPECIFICATIONS
Parameter
Min
Typ1
Max
Unit
Test Conditions
POWER SUPPLY
Supply Voltage, VCC
3.0
3.30
5.5
V
Supply Current, ICC
1.4
2.6
mA
Interface Inactive, ADC Active
TEMPERATURE-TO-DIGITAL CONVERTER
Internal Sensor Accuracy
±3
°C
±1
±2
°CTA = 85°C, Tested at Wafer Sort
Resolution
1
°C
External Diode Sensor Accuracy
±5
°C
±3
°CTA = 85°C, Tested at Wafer Sort
Resolution
1
°C
Remote Sensor Source Current
60
90
130
µA
High Level (D+ = D– +0.65 V)
3.5
5.5
7.5
µA
Low Level (D+ = D– +0.65 V)
Total Monitoring Cycle Time, tC
200
ms
ANALOG OUTPUT
Output Voltage Range
0
2.5
V
Total Unadjusted Error, TUE
±5%
IL = 2 mA
Full-Scale Error
±1
±3%
Zero Error
±2
LSB
No Load
Differential Nonlinearity, DNL
±1
LSB
Monotonic by Design
Integral Nonlinearity
±1
LSB
Output Source Current
2
mA
Output Sink Current
1
mA
VOLTAGE MONITOR THRESHOLDS
Reset Threshold, VMON, VCC
2.85
2.925
3.00
V
Measured with VCC Falling
Hysteresis
50
mV
MR INPUT
MR Minimum Pulsewidth, t
MR
10
µs
MR Glitch Immunity
100
ns
MR to RST2 Propagation Delay, t
MD
0.5
µs
MR Pull-Up Resistance
10
20
30
k
RESET OUTPUTS,
RST1, RST2
Reset Output Voltage, VOL
0.3
V
ISINK = 1.2 mA
VCC = VTH(MAX)
Reset Active Timeout Period, tRP
140
180
560
ms
VCC to Reset Delay, tD
20
µs
DIGITAL OUTPUT ADD/NTEST_OUT2
Output High Voltage, VOH
2.4
V
IOUT = 3.0 mA
Output Low Voltage, VOL
0.4
V
OPEN-DRAIN DIGITAL OUTPUTS
(
INT, THERM, RST2, RST1)
Output Low Voltage, VOL
0.4
V
IOUT = –3.0 mA
High Level Output Leakage Current, IOH
0.1
1
µAVOUT = VCC
OPEN-DRAIN SERIAL DATA
BUS OUTPUT (SDA)
Output Low Voltage, VOL
0.4
V
IOUT = –3.0 mA
High Level Output Leakage Current, IOH
0.1
1
µAV
OUT = VCC
SERIAL BUS DIGITAL INPUTS
(SCL, SDA)
Input High Voltage, VIH
2.1
V (min)
Input Low Voltage, VIL
0.8
V (max)
Input Leakage Current
±5
µA
Hysteresis
500
mV
(TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted.)


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