參數(shù)資料
型號(hào): LM79
文件頁數(shù): 5/31頁
文件大?。?/td> 481K
代理商: LM79
Absolute Maximum Ratings
(Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Positive Supply Voltage (V
CC
)
Voltage on Any Input or Output Pin
Ground Difference (GNDD–GNDA)
Input Current at any Pin (Note 3)
Package Input Current (Note 3)
Maximum Junction Temperature
(T
J
max)
ESD Susceptibility(Note 5)
Human Body Model
Machine Model
Soldering Information
PQFP Package (Note 6) :
6.5V
0.3V to (V
CC
+0.3V)
±
300 mV
±
5 mA
±
20 mA
150C
2000V
175V
Vapor Phase (60 seconds)
Infrared (15 seconds)
Storage Temperature
215C
220C
65C to +150C
Operating Ratings
(Notes 1, 2)
Operating Temperature Range
LM79
Specified Temperature Range
LM79
Junction to Ambient Thermal Resistance (
θ
JA
(Note 4) )
NS Package ID: VGZ44A
Supply Voltage (V
CC
)
Ground Difference
(IGNDD–GNDAI)
V
IN
Voltage Range
T
MIN
T
A
T
MAX
55C
T
A
+125C
T
MIN
T
A
T
MAX
10C
T
A
+100C
62C/W
+4.25V to +5.75V
100 mV
0.05V to V
CC
+ 0.05V
DC Electrical Characteristics
The following specifications apply for +4.25 V
DC
V
CC
+5.75 V
, f
= 8.33 MHz, R
= 25
, unless otherwise speci-
fied.
Boldface limits apply for T
A
= T
J
= T
MIN
to T
MAX
;
all other limits T
A
= T
J
= 25C. (Note 7)
Symbol
Parameter
Conditions
Typical
(Note 8)
Limits
(Note 9)
Units
(Limits)
POWER SUPPLY CHARACTERISTICS
I
CC
Supply Current
Interface Inactive
Shutdown Mode
1.0
10
2
mA (max)
μA
TEMPERATURE-TO-DIGITAL CONVERTER CHARACTERISTICS
Accuracy
Resolution
ANALOG-TO-DIGITAL CONVERTER CHARACTERISTICS
Resolution (8 bits with full-scale at 4.096V)
TUE
Total Unadjusted Error
DNL
Differential Non-Linearity
PSS
Power Supply Sensitivity
t
C
Total Monitoring Cycle Time
OP AMP CHARACTERISTICS
Output Current (Sourcing)
Input Offset Voltage
Input Bias Current
PSRR
DC Open Loop Gain
Gain Bandwidth Product
MULTIPLEXER/ADC INPUT CHARACTERISTICS
On Resistance
Off Channel Leakage Current
Input Current (On Channel Leakage Current)
FAN RPM-TO-DIGITAL CONVERTER
Accuracy
10C
T
A
+100C
±
3
1
C (max)
C (min)
16
mV
(Note 10)
±
1
±
1
% (max)
LSB (max)
%/V
sec (max)
±
1
1.0
(Note 11)
1.5
50
±
1
±
0.1
60
70
500
μA
mV
nA
dB
dB
kHz
I
OUT
= 50 μA
400
±
0.1
±
0.1
2000
(max)
nA
nA
+25C
T
A
+75C
10C
T
A
+100C
±
10
±
15
255
% (max)
% (max)
(max)
Full-scale Count
L
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