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ADT7476AARQZ-REEL7 Arkusz danych(PDF) 3 Page - Analog Devices

Numer części ADT7476AARQZ-REEL7
Szczegółowy opis  dBCool Remote Thermal Controller and Voltage Monitor
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Strona internetowa  http://www.analog.com
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ADT7476AARQZ-REEL7 Arkusz danych(HTML) 3 Page - Analog Devices

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ADT7476A
Rev. 0 | Page 3 of 72
SPECIFICATIONS
TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted.1
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
POWER SUPPLY
Supply Voltage
3.0
3.3
3.6
V
Supply Current, ICC
1.5
3
mA
Interface inactive, ADC active
TEMP-TO-DIGITAL CONVERTER
Local Sensor Accuracy
±0.5
±1.5
°C
0°C ≤ TA ≤ 85°C
±2.5
°C
–40°C ≤ TA ≤ 125°C
Resolution
0.25
°C
Remote Diode Sensor Accuracy
±0.5
±1.5
°C
0°C ≤ TA ≤ 85°C
±2.5
°C
–40°C ≤ TA ≤ 125°C
Resolution
0.25
°C
Remote Sensor Source Current
180
μA
High level
11
μΑ
Low level
ANALOG-TO-DIGITAL CONVERTER (INCLUDING MUX AND ATTENUATORS)
Total Unadjusted Error (TUE)
±2
%
For 12 V channel
±1.5
%
For all other channels
Differential Nonlinearity (DNL)
±1
LSB
8 bits
Power Supply Sensitivity
±0.1
%/V
Conversion Time (Voltage Input)
11
ms
Averaging enabled
Conversion Time (Local Temperature)
12
ms
Averaging enabled
Conversion Time (Remote Temperature)
38
ms
Averaging enabled
Total Monitoring Cycle Time
145
ms
Averaging enabled
Total Monitoring Cycle Time
19
ms
Averaging disabled
Input Resistance
70
120
For VCCP channel
70
114
For all other channels
FAN RPM-TO-DIGITAL CONVERTER
Accuracy
±6
%
0°C ≤ TA ≤ 70°C
±10
%
−40°C ≤ TA ≤ +120°C
Full-Scale Count
65,535
Nominal Input RPM
109
RPM
Fan count = 0xBFFF
329
RPM
Fan count = 0x3FFF
5,000
RPM
Fan count = 0x0438
10,000
RPM
Fan count = 0x021C
OPEN-DRAIN DIGITAL OUTPUTS, PWM1 TO PWM3, XTO
Current Sink, IOL
8.0
mA
Output Low Voltage, VOL
0.4
V
IOUT = −8.0 mA
High Level Output Current, IOH
0.1
20
μA
VOUT = VCC
OPEN-DRAIN SERIAL DATA BUS OUTPUT (SDA)
Output Low Voltage, VOL
0.4
V
IOUT = −4.0 mA
High Level Output Current, IOH
0.1
1.0
μA
VOUT = VCC
SMBus DIGITAL INPUTS (SCL, SDA)2
Input High Voltage, VIH
2.0
V
Input Low Voltage, VIL
0.4
V
Hysteresis
500
mV


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