ADT7475 Analog Devices, Inc., ADT7475 Datasheet - Page 3

• Manufacturer Part Number: ADT7475
• Description: Dbcool Remote Thermal Monitor And Fan Controller
• Manufacturer: Analog Devices, Inc.

SPECIFICATIONS
T
Table 1.
Parameter
POWER SUPPLY
TEMPERATURE-TO-DIGITAL CONVERTER
ANALOG-TO-DIGITAL CONVERTER
(INCLUDING MUX AND ATTENUATORS)
FAN RPM-TO-DIGITAL CONVERTER
OPEN-DRAIN DIGITAL OUTPUTS (PWM1 TO PWM3, XTO)
OPEN-DRAIN SERIAL DATA BUS OUTPUT (SDA)
SMBus DIGITAL INPUTS (SCL, SDA)
A
Supply Voltage
Supply Current, I
Local Sensor Accuracy
Resolution
Remote Diode Sensor Accuracy
Resolution
Remote Sensor Source Current
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
Input Resistance
Accuracy
Full-Scale Count
Nominal Input RPM
Current Sink, I
Output Low Voltage, V
High Level Output Current, I
Output Low Voltage, V
High Level Output Current, I
Input High Voltage, V
Input Low Voltage, V
Hysteresis
= T
MIN
to T
MAX
OL
, V
CC
CC
IL
= V
IH
OL
OL
MIN
to V
OH
OH
MAX
, unless otherwise noted.
Rev. B | Page 3 of 68
Min
3.0
70
2.0
1
Typ
3.3
1.5
±0.5
0.25
±0.5
0.25
180
11
±0.1
11
12
38
145
19
120
109
329
5000
10,000
0.1
0.1
500
Max
3.6
3
1.5
±2.5
1.5
±2.5
±1.5
±1
±6
±10
65,535
8.0
0.4
20
0.4
1.0
0.4
Unit
V
mA
°C
°C
°C
°C
°C
°C
μA
μΑ
%
LSB
%/V
ms
ms
ms
ms
ms
kΩ
%
%
RPM
RPM
RPM
RPM
mA
V
μA
V
μA
V
V
mV
Test Conditions/Comments
Interface inactive, ADC active
0°C ≤ T
−40°C ≤ T
0°C ≤ T
−40°C ≤ T
High level
Low level
8 bits
Averaging enabled
Averaging enabled
Averaging disabled
For V
0°C ≤ T
−40°C ≤ T
Fan count = 0xBFFF
Fan count = 0x3FFF
Fan count = 0x0438
Fan count = 0x021C
I
V
I
V
Averaging enabled
Averaging enabled
OUT
OUT
OUT
OUT
= −8.0 mA
= −4.0 mA
= V
= V
CCP
A
A
A
CC
CC
channel
≤ 85°C
≤ 85°C
≤ 70°C
A
A
A
≤ +125°C
≤ +125°C
≤ +120°C
ADT7475