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LM331N Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LM331N
Description  Precision Voltage-to-Frequency Converters
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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 2 page
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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
LM231A/LM231
LM331A/LM331
Supply Voltage
40V
40V
Output Short Circuit to Ground
Continuous
Continuous
Output Short Circuit to V
CC
Continuous
Continuous
Input Voltage
−0.2V to +V
S
−0.2V to +V
S
T
MIN
T
MAX
T
MIN
T
MAX
Operating Ambient Temperature Range
−25˚C to +85˚C
0˚C to +70˚C
Power Dissipation (P
D at 25˚C)
and Thermal Resistance (
θ
jA)
(N Package) P
D
1.25W
1.25W
θ
jA
100˚C/W
100˚C/W
Lead Temperature (Soldering, 10 sec.)
Dual-In-Line Package (Plastic)
260˚C
260˚C
ESD Susceptibility (Note 4)
N Package
500V
500V
Electrical Characteristics
T
A=25˚C unless otherwise specified (Note 2)
Parameter
Conditions
Min
Typ
Max
Units
VFC Non-Linearity (Note 3)
4.5V
≤ V
S ≤ 20V
±0.003
±0.01
% Full-
Scale
T
MIN ≤ TA ≤ TMAX
±0.006
±0.02
% Full-
Scale
VFC Non-Linearity
V
S = 15V, f = 10 Hz to 11 kHz
±0.024
±0.14
%Full-
In Circuit of
Figure 1
Scale
Conversion Accuracy Scale Factor (Gain)
V
IN = −10V, RS = 14 kΩ
LM231, LM231A
0.95
1.00
1.05
kHz/V
LM331, LM331A
0.90
1.00
1.10
kHz/V
Temperature Stability of Gain
T
MIN ≤ TA ≤ TMAX, 4.5V ≤ VS ≤ 20V
LM231/LM331
±30
±150
ppm/˚C
LM231A/LM331A
±20
±50
ppm/˚C
Change of Gain with V
S
4.5V
≤ V
S ≤ 10V
0.01
0.1
%/V
10V
≤ V
S ≤ 40V
0.006
0.06
%/V
Rated Full-Scale Frequency
V
IN = −10V
10.0
kHz
Gain Stability vs Time
T
MIN ≤ TA ≤ TMAX
±0.02
% Full-
(1000 Hrs)
Scale
Overrange (Beyond Full-Scale) Frequency
V
IN = −11V
10
%
INPUT COMPARATOR
Offset Voltage
±3
±10
mV
LM231/LM331
T
MIN ≤ TA ≤ TMAX
±4
±14
mV
LM231A/LM331A
T
MIN ≤ TA ≤ TMAX
±3
±10
mV
Bias Current
−80
−300
nA
Offset Current
±8
±100
nA
Common-Mode Range
T
MIN ≤ TA ≤ TMAX
−0.2
V
CC−2.0
V
TIMER
Timer Threshold Voltage, Pin 5
0.63
0.667
0.70
x V
S
Input Bias Current, Pin 5
V
S = 15V
All Devices
0V
≤ V
PIN 5 ≤ 9.9V
±10
±100
nA
LM231/LM331
V
PIN 5 = 10V
200
1000
nA
LM231A/LM331A
V
PIN 5 = 10V
200
500
nA
www.national.com
2




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