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ADM1023 Datasheet(PDF) 3 Page - ON Semiconductor

Part No. ADM1023
Description  ACPI‐Compliant, High Accuracy Microprocessor System Temperature Monitor
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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ADM1023 Datasheet(HTML) 3 Page - ON Semiconductor

 
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ADM1023
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Table 3. PIN ASSIGNMENT
Pin No.
Mnemonic
Description
1
NC
No Connect
2
VDD
Positive Supply, 3.0 V to 5.5 V
3
D+
Positive Connection to Remote Temperature Sensor
4
D−
Negative Connection to Remote Temperature Sensor
5
NC
No Connect
6
ADD1
Three-state Logic Input, Higher Bit of Device Address
7
GND
Supply 0 V Connection
8
GND
Supply 0 V Connection
9
NC
No Connect
10
ADD0
Three-state Logic Input, Lower Bit of Device Address
11
ALERT
Open-drain Logic Output Used as Interrupt or SMBus ALERT
12
SDATA
Logic Input/Output, SMBus Serial Data. Open-drain Output
13
NC
No Connect
14
SCLK
Logic Input, SMBus Serial Clock
15
STBY
Logic Input Selecting Normal Operation (High) or Standby Mode (Low)
16
NC
No Connect
Table 4. ELECTRICAL CHARACTERISTICS (TA = TMIN to TMAX, VDD = 3.0 V to 3.6 V, unless otherwise noted. (Note 1)
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
Power Supply and ADC
Temperature Resolution, Local Sensor
Guaranteed No Missed Codes
1.0
C
Temperature Resolution, Remote Sensor
Guaranteed No Missed Codes
0.125
C
Temperature Error, Local Sensor
TA = 60C to 100C
TA = 0C to 120C
−1.5
−3.0
0.5
1.0
+1.5
+3.0
C
Temperature Error, Remote Sensor
TA, TD = 60C to 100C (Note 2)
−1.0
+1.0
C
TA, TD = 0C to 120C (Note 2)
−3.0
+3.0
C
Relative Accuracy
TA = 60C to 100C
0.25
C
Supply Voltage Range (Note 3)
3.0
3.6
V
Undervoltage Lockout Threshold
VDD Input, Disables ADC, Rising Edge
2.55
2.7
2.8
V
Undervoltage Lockout Hysteresis
25
mV
Power-on Reset Threshold
VDD, Falling Edge (Note 4)
0.9
1.7
2.2
V
POR Threshold Hysteresis
50
mV
Standby Supply Current
VDD = 3.3 V, No SMBus Activity
SCLK at 10 kHz
1.0
4.0
5.0
mA
Average Operating Supply Current
0.25 Conversions/Sec Rate
130
200
mA
Autoconvert Mode, Averaged Over 4 Sec
2 Conversions/Sec Rate
225
370
mA
Conversion Time
From Stop Bit to Conversion Complete
(Both Channels) D+ Forced to D− + 0.65 V
65
115
170
ms
Remote Sensor Source Current
High Level (Note 4)
Low Level (Note 4)
120
7.0
205
12
300
16
mA
D− Source Voltage
0.7
V
Address Pin Bias Current (ADD0, ADD1)
Momentary at Power-on Reset
50
mA


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