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ADT7485AARMZ-R7 数据表(PDF) 3 Page - ON Semiconductor

部件名 ADT7485AARMZ-R7
功能描述  Temperature Sensor and Voltage Monitor with Simple Serial Transport
PDF  12 Pages
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制造商  ONSEMI [ON Semiconductor]
网页  http://www.onsemi.com
标志 ONSEMI - ON Semiconductor

ADT7485AARMZ-R7 数据表(HTML) 3 Page - ON Semiconductor

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ADT7485A
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
Power Supply
Supply Voltage, VCC
3.0
3.3
3.6
V
Undervoltage Lockout Threshold
2.8
V
Average Operating Supply Current, IDD
Continuous conversions
3.8
5.0
mA
Temperature−to−Digital Converter
Local Sensor Accuracy
40°C ≤ TA ≤ 70°C; VCC = 3.3 V ±5%
−40°C ≤ TA ≤ +100°C
+1.0
±1.75
±4.0
°C
Remote Sensor Accuracy
−40°C ≤ TD ≤ +125°C; TA = 25°C; VCC = 3.3 V
−40°C ≤ TD ≤ +125°C; −40 ≤ TA ≤ 70°C;
VCC = 3.3 V ±5%
−40°C ≤ TD ≤ +125°C; −40 ≤ TA ≤ +100°C
+1.0
±1.0
±1.75
±4.0
°C
Remote Sensor Source Current
Low level
Mid level
High level
12
80
204
mA
Resolution
0.016
°C
Series Resistance Cancellation
The ADT7485A cancels 1.5 kW in series with
the remote thermal diode
1.5
kW
Digital Input (ADD)
Input High Voltage, VIH
2.3
V
Input Low Voltage, VIL
0.8
V
Input High Current, IIH
VIN = VCC
−1.0
mA
Input Low Current, IIL
VIN = 0
1.0
mA
Pin Capacitance
5.0
pF
Analog−to−Digital Converter (Including Multiplexer and Attenuators)
Total Unadjusted Error (TUE)
12 V and 5.0 V channels
For all other channels
±2.0
±1.5
%
Differential Non−linearity (DNL)
10 bits
±1.0
LSB
Power Supply Sensitivity
±0.1
%/V
Conversion Time (Voltage Input)
(Note 1)
Averaging enabled
11
ms
Conversion Time
(Local Temperature) (Note 1)
Averaging enabled
12
ms
Conversion Time
(Remote Temperature) (Note 1)
Averaging enabled
38
ms
Total Monitoring Cycle Time (Note 1)
Averaging enabled
145
ms
Input Resistances
VCCP and 2.5V Channels
5.0 V Channel
12 V Channel
80
95
180
110
120
230
140
150
280
kW
Digital I/O (SST Pin)
Input High Voltage , VIH
1.1
V
Input Low Voltage, VIL
0.4
V
Hysteresis (Note 1)
Between input switching levels
150
mV
Output High Voltage, VOH
ISOURCE = 6 mA (maximum)
1.1
1.9
V
1. Guaranteed by design, not production tested.
2. Minimum and maximum bit times are relative to tBIT defined in the timing negotiation pulse.
3. Device is compatible with hold time specification as driven by SST originator.



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