LM231N/NOPB National Semiconductor, LM231N/NOPB Datasheet - Page 3

• Manufacturer Part Number: LM231N/NOPB
• Description: IC CONVERTER PREC V TO FREQ 8DIP
• Manufacturer: National Semiconductor
• Type: Voltage to Frequencyr

Specifications of LM231N/NOPB

• Frequency - Max: 100kHz
• Full Scale: ±150ppm/°C
• Linearity: ±0.01%
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Converter Function: VFC
• Full Scale Frequency: 100
• Power Supply Requirement: Single
• Single Supply Voltage (typ): 5/9/12/15/18/24/28V
• Single Supply Voltage (max): 40V
• Single Supply Voltage (min): 4V
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temperature (min): -25C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Package Type: MDIP
• Supply Voltage (max): 40 V
• Supply Voltage (min): 4 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Linearity Error: +/- 0.14 %FSR
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM231N; *LM231N/NOPB; LM231; LM231N

Operating Range of Current (Typical)
Stability vs. Temperature
Stability vs. Time, 1000 Hours
LM231, LM231A
LM331, LM331A
Electrical Characteristics
All specifications apply in the circuit of Figure 4, with 4.0V ≤ V
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 voltages are measured with respect to GND = 0V, unless otherwise noted.
Note 3: The absolute maximum junction temperature (T
junction-to-ambient thermal resistance (θ
maximum power dissipation will be reached only when the device is operated in a severe fault condition (e.g., when input or output pins are driven beyond the power
supply voltages, or the power supply polarity is reversed). Obviously, such conditions should always be avoided.
Note 4: Nonlinearity is defined as the deviation of f
the frequency range 1 Hz to 11 kHz. For the timing capacitor, C
Note 5: Human body model, 100 pF discharged through a 1.5 kΩ resistor.
CURRENT SOURCE (Pin 1)
REFERENCE VOLTAGE (Pin 2)
LOGIC OUTPUT (Pin 3)
SUPPLY CURRENT
LM231, LM231A, LM331, LM331A
All Devices
LM231, LM231A
LM331, LM331A
V
OFF Leakage
SAT
Parameter
JA
), and the ambient temperature T
OUT
T
I = 5 mA
I = 3.2 mA (2 TTL Loads),
T
V
V
V
V
from V
(Continued)
A
MIN
S
S
S
S
J
max) for this device is 150˚C. The maximum allowable power dissipation is dictated by T
= T
= 5V
= 40V
= 5V
= 40V
≤ T
IN
MAX
T
x (10 kHz/−10 V
, use NPO ceramic, Teflon
A
≤ T
Conditions
MAX
A
, and can be calculated using the formula P
S
3
DC
≤ 40V, T
) when the circuit has been trimmed for zero error at 10 Hz and at 10 kHz, over
®
A
, or polystyrene.
=25˚C, unless otherwise specified.
1.76
1.70
Min
2.0
2.5
1.5
2.0
(10 to 500)
D
±
max = (T
0.02
1.89
1.89
±
0.15
0.10
Typ
±
2.0
3.0
4.0
3.0
4.0
0.05
0.1
60
J
max - T
Max
10.0
50.0
2.02
2.08
0.50
0.40
1.0
4.0
6.0
6.0
8.0
A
) / θ
JA
. The values for
www.national.com
ppm/˚C
J
Units
max, the
V
V
mA
mA
mA
mA
nA
nA
µA
µA
%
V
V
DC
DC