LP311 Datasheet, PDF (3/8 Pages) National Semiconductor (TI) – LP311 Voltage Comparator

Absolute Maximum Ratings
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Total Supply Voltage (V_8–4)
36V
Collector Output to Negative Supply Voltage (V_7–4) 40V
Collector Output to Emitter Output
40V
Emitter Output to Negative Supply Voltage (V_1–4)
Differential Input Voltage
g30V
g30V
Input Voltage (Note 1)
g15V
Power Dissipation (Note 2)
500 mW
Output Short Circuit Duration
10 sec
Operating Temperature Range
0 C to 70 C
Storage Temperature Range
b65 C to 150 C
Lead Temperature (Soldering 10 seconds)
260 C
Electrical Characteristics
These specifications apply for V_S e g15V and 0 C ^s T_A ^s 70 C unless otherwise specified
Parameter
Conditions
Min
Typ
Max
Units
Input Offset Voltage (Notes 3 4)
T_Ae25 C R_S^s100k
20
75
mV
Input Offset Current (Notes 3 4)
T_Ae25 C
20
25
nA
Input Bias Current (Note 3)
T_Ae25 C
15
100
nA
Voltage Gain
T_A e 25 C R_Le5k
40
200
V mV
Response Time (Note 5)
T_Ae25 C
12
ms
te ^{Saturation Voltage (Note 6)}
V_IN^sb10 mV I_OUTe25 mA
T_Ae_{25 C}
04
15
V
Strobe Current (Note 7)
T_Ae25 C
100
200
300
mA
Output Leakage Current
V_IN^t10 mV V_OUTe35V
T_Ae25 C
02
100
nA
le ^{Input Offset Voltage (Notes 3 4)}
R_S^s100k
10
mV
Input Offset Current (Notes 3 4)
35
nA
Input Bias Current (Note 3)
150
nA
Input Voltage Range
V^ba0 5
a13 7 b14 7
V^ab1 5
V
o ^{Saturation Voltage (Note 6)}
V^at4 5V V^be0V
V_IN^sb10 mV I_SINK^s1 6 mA
01
04
V
Positive Supply Current
T_Ae25 C Output on
150
300
mA
Negative Supply Current
T_Ae25 C
80
180
mA
s Minimum Operating Voltage
T_Ae25 C
30
35
V
Note 1 This rating applies for g15V supplies The positive input voltage limit is 30V above the negative supply The negative input voltage limit is equal to the
negative supply voltage or 30V below the positive supply whichever is less
Note 2 The maximum junction temperature of the LP311 is 85 C For operating at elevated temperatures devices in the dual-in-line package must be derated
based on a thermal resistance of 160 C W junction to ambient
b Note 3 The offset voltage offset current and bias current specifications apply for any supply voltage from a single 4V supply up to g15V supplies
Note 4 The offset voltages and offset currents given are the maximum values required to drive the output within a volt of either supply with 1 mA load Thus these
parameters define an error band and take into account the worst-case effects of voltage gain and input impedance
Note 5 The response time specified is for a 100 mV input step with 5 mV overdrive
Note 6 Saturation voltage specification applies to collector-emitter voltage (V7-1) for V_COLLECTOR s (V^a b 3V)
Note 7 This specification gives the range of current which must be drawn from the strobe pin to ensure the output is properly disabled Do not short the strobe pin
O ^{to ground It should be current driven 100 mA to 300 mA}
2