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ADM1021A Datasheet(Fiches technique) 3 Page - ON Semiconductor

Numéro de pièce ADM1021A
Description  Low Cost Microprocessor System Temperature Monitor Microcomputer
Télécharger  15 Pages
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Fabricant  ONSEMI [ON Semiconductor]
Site Internet  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

ADM1021A Datasheet(HTML) 3 Page - ON Semiconductor

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ADM1021A
http://onsemi.com
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.
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
Guaranteed no missed codes
1.0
°C
Temperature Error, Local Sensor
−3.0
±1.0
+3.0
°C
Temperature Error, Remote Sensor
TA = 60°C to 100°C
−3.0
−5.0
+3.0
+5.0
°C
Supply Voltage Range (Note 2)
3.0
3.6
V
Undervoltage Lockout Threshold
VDD input, disables ADC, rising edge
2.5
2.7
2.95
V
Undervoltage Lockout Hysteresis
25
mV
Power−On Reset Threshold
VDD, falling edge (Note 3)
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
Auto−convert 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 3)
Low level (Note 3)
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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