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LM331N Datasheet(PDF) 3 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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 3 page
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Electrical Characteristics (Continued)
T
A=25˚C unless otherwise specified (Note 2)
Parameter
Conditions
Min
Typ
Max
Units
TIMER
V
SAT PIN 5 (Reset)
I = 5 mA
0.22
0.5
V
CURRENT SOURCE (Pin 1)
Output Current
R
S=14 kΩ,VPIN 1=0
LM231, LM231A
126
135
144
µA
LM331, LM331A
116
136
156
µA
Change with Voltage
0V
≤ V
PIN 1 ≤ 10V
0.2
1.0
µA
Current Source OFF Leakage
LM231, LM231A, LM331, LM331A
0.02
10.0
nA
All Devices
T
A=TMAX
2.0
50.0
nA
Operating Range of Current (Typical)
(10 to 500)
µA
REFERENCE VOLTAGE (Pin 2)
LM231, LM231A
1.76
1.89
2.02
V
DC
LM331, LM331A
1.70
1.89
2.08
V
DC
Stability vs Temperature
±60
ppm/˚C
Stability vs Time, 1000 Hours
±0.1
%
LOGIC OUTPUT (Pin 3)
V
SAT
I=5 mA
0.15
0.50
V
I=3.2 mA (2 TTL Loads), T
MIN≤TA≤TMAX
0.10
0.40
V
OFF Leakage
±0.05
1.0
µA
SUPPLY CURRENT
LM231, LM231A
V
S=5V
2.0
3.0
4.0
mA
LM331, LM331A
V
S=40V
2.5
4.0
6.0
mA
V
S=5V
1.5
3.0
6.0
mA
V
S=40V
2.0
4.0
8.0
mA
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its specified operating conditions.
Note 2: All specifications apply in the circuit of
Figure 4, with 4.0V
≤VS≤40V, unless otherwise noted.
Note 3: Nonlinearity is defined as the deviation of fOUT from VIN x (10 kHz/−10 VDC) when the circuit has been trimmed for zero error at 10 Hz and at 10 kHz, over
the frequency range 1 Hz to 11 kHz. For the timing capacitor, CT, use NPO ceramic, Teflon®, or polystyrene.
Note 4: Human body model, 100 pF discharged through a 1.5 k
Ω resistor.
www.national.com
3




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