ADT7476ARQZ-REEL7 データシートの表示（PDF） - Analog Devices

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ADT7476ARQZ-REEL7

dBCool™ Remote Thermal Controller and Voltage Monitor

Analog Devices 

ADT7476

SPECIFICATIONS

TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted.1

Table 1.

Parameter

POWER SUPPLY

Supply Voltage

Supply Current, ICC

TEMPERATURE-TO-DIGITAL CONVERTER

Local Sensor Accuracy

Resolution

Remote Diode Sensor Accuracy

Resolution

Remote Sensor Source Current

ANALOG-TO-DIGITAL CONVERTER

(INCLUDING MUX AND ATTENUATORS)

Total Unadjusted Error (TUE)

Differential Nonlinearity (DNL)

Power Supply Sensitivity

Conversion Time (Voltage Input)

Conversion Time (Local Temperature)

Conversion Time (Remote Temperature)

Total Monitoring Cycle Time

Total Monitoring Cycle Time

Input Resistance

FAN RPM-TO-DIGITAL CONVERTER

Accuracy

Full-Scale Count

Nominal Input RPM

Min

Typ

Max

Unit

3.0

3.3

3.6

V

1.5

3

mA

±0.5

±1.5

°C

±2.5

°C

0.25

°C

±0.5

±1.5

°C

±2.5

°C

0.25

°C

180

μA

11

μΑ

±2

%

±1.5

%

±1

LSB

±0.1

%/V

11

ms

12

ms

38

ms

145

ms

19

ms

70

120

kΩ

70

114

kΩ

±6

%

±10

%

65,535

109

RPM

329

RPM

5000

RPM

10,000

RPM

OPEN-DRAIN DIGITAL OUTPUTS, PWM1 TO PWM3,

XTO

Current Sink, IOL

Output Low Voltage, VOL

High Level Output Current, IOH

OPEN-DRAIN SERIAL DATA BUS OUTPUT (SDA)

Output Low Voltage, VOL

High Level Output Current, IOH

8.0

mA

0.4

V

0.1

20

μA

0.4

V

0.1

1.0

μA

Test Conditions/Comments

Interface inactive, ADC active

0°C ≤ TA ≤ 85°C

–40°C ≤ TA ≤ 125°C

0°C ≤ TA ≤ 85°C

–40°C ≤ TA ≤ 125°C

High level

Low level

For 12 V channel

For all other channels

8 bits

Averaging enabled

Averaging enabled

Averaging enabled

Averaging enabled

Averaging disabled

For VCCP channel

For all other channels

0°C ≤ TA ≤ 70°C

−40°C ≤ TA ≤ +120°C

Fan count = 0xBFFF

Fan count = 0x3FFF

Fan count = 0x0438

Fan count = 0x021C

IOUT = −8.0 mA

VOUT = VCC

IOUT = −4.0 mA

VOUT = VCC

Rev. A | Page 4 of 72

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