adm9240 Analog Devices, Inc., adm9240 Datasheet - Page 2

• Manufacturer Part Number: adm9240
• Description: Low Cost Microprocessor System Hardware Monitor
• Manufacturer: Analog Devices, Inc.

ADM9240–SPECIFICATIONS
Parameter
POWER SUPPLY
TEMPERATURE-TO-DIGITAL CONVERTER
ANALOG-TO-DIGITAL CONVERTER
ANALOG OUTPUT
FAN RPM-TO-DIGITAL CONVERTER
DIGITAL OUTPUT NTEST_OUT
OPEN-DRAIN DIGITAL OUTPUTS
Supply Voltage, V
Supply Current, I
Accuracy
Resolution
(INCLUDING MUX AND ATTENUATORS)
Total Unadjusted Error, TUE
Differential Nonlinearity, DNL
Power Supply Sensitivity
Total Monitoring Cycle Time
Input Resistance
Output Voltage Range
Total Unadjusted Error, TUE
Full-Scale Error
Zero Error
Differential Nonlinearity, DNL
Integral Nonlinearity
Output Source Current
Output Sink Current
Accuracy
Full-Scale Count
FAN1 and FAN2 Nominal Input RPM
Internal Clock Frequency
Output High Voltage, V
Output Low Voltage, V
(INT, RESET, CI)
Output Low Voltage, V
High Level Output Current, I
RESET and CI Pulsewidth
CC
CC
OL
OL
OH
OH
1, 2
Min
2.85
100
0
21.1
19.8
2.4
2.4
20
(T
A
= T
–2–
Typ
5
1.4
1.0
25
311
311
140
2
2
1
8800
4400
2200
1100
22.5
22.5
0.1
45
0.5
1
1
1
MIN
to T
MAX
Max
5.75
2.0
100
331
353
200
1.25
255
25.2
0.4
0.4
0.4
0.4
100
23.9
, V
3
2
2
1
3
3
1
6
12
CC
= V
MIN
Units
V
mA
mA
%
LSB
%/V
k
V
%
%
LSB
LSB
LSB
mA
mA
%
%
rpm
rpm
rpm
rpm
kHz
kHz
V
V
V
V
V
V
ms
C
C
C
A
s
s
A
to V
MAX
, unless otherwise noted)
Test Conditions/Comments
Interface Inactive, ADC Active
ADC Inactive, DAC Active
Shutdown Mode
–40 C
Note 3
+25 C
–40 C
I
No Load
Monotonic by Design
+25 C
–40
Divisor = 1, Fan Count = 153
(Note 5)
Divisor = 2, Fan Count = 153
(Note 5)
Divisor = 3, Fan Count = 153
(Note 5)
Divisor = 4, Fan Count = 153
(Note 5)
+25 C
–40
I
V
I
V
I
V
I
V
I
I
V
T
L
OUT
OUT
OUT
OUT
OUT
OUT
CC
CC
CC
CC
OUT
A
= 2 mA
o
o
= +25 C
C
C
= 4.25 V–5.75 V
= 2.85 V–3.45 V
= 4.25 V–5.75 V
= 2.85 V–3.45 V
= 5.0 mA,
= 3.0 mA,
= –5.0 mA,
= –3.0 mA,
= –5.0 mA, V
= –3.0 mA, V
= V
T
T
T
T
T
T
T
CC
A
A
A
A
A
A
A
+125 C
+125 C
+125 C
+125 C (Note 4)
+125 C (Note 4)
+125 C
+125 C
CC
CC
= 5.75 V
= 3.45 V
REV. 0