LM78
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
150˚C
2000V
175V
Vapor Phase (60 seconds)
Infrared (15 seconds)
Storage Temperature
215˚C
220˚C
−65˚C to +150˚C
Operating Ratings
(Notes 1, 2)
Operating Temperature Range
T
MIN
≤
T
A
≤
T
MAX
LM78
−55˚C
≤
T
A
≤
+125˚C
Specified Temperature Range
T
MIN
≤
T
A
≤
T
MAX
LM78
−10˚C
≤
T
A
≤
+100˚C
Junction to Ambient Thermal Resistance (θ
JA
(Note 4) )
NS Package ID: VGZ44A
62˚C/W
+4.25V to +5.75V
Supply Voltage (V
CC
)
Ground Difference
(IGNDD–GNDAI)
≤100
mV
−0.05V to V
CC
+ 0.05V
V
IN
Voltage Range
DC Electrical Characteristics
(Note 7)
The following specifications apply for +4.25 V
DC
≤V
CC
≤
+5.75 V
DC
, f
SYSCLK
= 8.33 MHz, R
S
= 25Ω, unless otherwise speci-
fied.
Boldface limits apply for T
A
= T
J
= T
MIN
to T
MAX
;
all other limits T
A
= T
J
= 25˚C.
Symbol
Parameter
Conditions
Typical
(Note 8)
POWER SUPPLY CHARACTERISTICS
I
CC
Supply Current
Interface Inactive
Shutdown Mode
TEMPERATURE-TO-DIGITAL CONVERTER CHARACTERISTICS
Accuracy
Resolution
ANALOG-TO-DIGITAL CONVERTER CHARACTERISTICS
Resolution (8 bits with full-scale at 4.096V)
TUE
DNL
PSS
t
C
Total Unadjusted Error
Differential Non-Linearity
Power Supply Sensitivity
Total Monitoring Cycle Time
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
Full-scale Count
+25˚C
≤
T
A
≤
+75˚C
−10˚C
≤
T
A
≤
+100˚C
400
2000
Ω
(max)
nA
nA
I
OUT
= 50 µA
(Note 11)
(Note 10)
16
mV
−10˚C
≤
T
A
≤
+100˚C
1.0
10
2
mA (max)
µA
Limits
(Note 9)
Units
(Limits)
±
3
1
˚C (max)
˚C (min)
±
1
±
1
±
1
1.0
50
1.5
% (max)
LSB
%/V
sec (max)
µA
mV
nA
dB
dB
kHz
OP AMP CHARACTERISTICS
±
1
±
0.1
60
70
500
±
0.1
±
0.1
±
10
±
15
255
% (max)
% (max)
(max)
5
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