lf311 National Semiconductor Corporation, lf311 Datasheet - Page 2

• Manufacturer Part Number: lf311
• Description: Voltage Comparators
• Manufacturer: National Semiconductor Corporation

Absolute Maximum Ratings
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
(Note 8)
Total Supply Voltage (V
Output to Negative Supply
Ground to Negative Supply
Differential Input Voltage
Input Voltage (Note 1)
Power Dissipation (Note 2)
Output Short Circuit Duration
Electrical Characteristics
Note 1 This rating applies for
negative supply voltage or 30V below the positive supply whichever is less
Note 2 The maximum junction temperature of the LF111 is
devices in the H08 package must be derated based on a thermal resistance of
to ambient (in static air) or
Note 3 These specifications apply for V
LF211 however all temperature specifications are limited to
current specifications apply for any supply voltage from a single 5 0V supply up to
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 a 1 0 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 (see definitions) is for a 100 mV input step with 5 0 mV overdrive
Note 6 For input voltages greater than 15V above the negative supply the bias and offset currents will increase see typical performance curves
Note 7 This specification gives the current that must be drawn from the strobe pin to ensure the output is properly disabled Do not short the strobe pin to ground
it should be current driven at 3 to 5 mA
Note 8 Refer to RETSF111X for LF111H military specifications
Input Offset Voltage (Note 4)
Input Offset Current (Note 4)
Input Bias Current
Voltage Gain
Response Time (Note 5)
Saturation Voltage
Strobe On Current
Output Leakage Current
Input Offset Voltage (Note 4)
Input Offset Current (Note 4)
Input Bias Current
Input Voltage Range
Saturation Voltage
Output Leakage Current
Positive Supply Current
Negative Supply Current
Voltage (V
Voltage (V
Parameter
74
14
)
)
a
84
20 C W junction to case
g
)
15V supplies The positive input voltage limit is 30V above the negative supply The negative input voltage limit is equal to the
LF111 LF211
S
e
10 seconds
g
T
T
T
T
T
V
T
V
R
V
V
V
V
V
T
T
500 mW
15V and the Ground pin at ground and
A
A
A
A
A
A
A
A
IN s
IN s
S s
S
S
a
IN s
IN t
e
e
e
e
e
e
e
e
e
e
g
g
t
25 C R
25 C V
25 C V
25 C
25 C
25 C
25 C
25 C
36V
50V
30V
30V
15V
g
g
5 0 mV V
5 0 mV V
b
4 5V V
b
50k
(LF111 LF211) (Note 3)
15V V
15V V
5 0 mV I
6 0 mV I
b
10 seconds
a
S s
CM
CM
b
25 C
CM
CM
150 C the LF211 is
Conditions
LF311
e
OUT
OUT
500 mW
e
e
OUT
OUT s
e
e
0
50k
s
g
g
0 (Note 6)
0 (Note 6)
T
e
0 (Note 6)
0 (Note 6)
e
36V
40V
30V
30V
15V
A s g
e
35V T
35V
8 0 mA
50 mA T
85 C and for the LF311 0 C
a
2
65 C W junction to ambient (in 400 linear feet min air flow)
A
e
g
a
Operating Temp
Storage Temp
Lead Temp
ESD rating to be determined
15V supplies
25 C
A
110 C and the LF311 is
e
Range
Range
(Soldering
10 seconds)
b
25 C
55 C
LF211
LF311
LF111
s
T
A s
a
s
125 C for the LF111 unless otherwise stated With the
b
T
Min
A s
40
13 5
b
b
a
b
a
LF111 LF211
55 C to
65 C to
70 C The offset voltage offset current and bias
85 C For operating at elevated temperatures
25 C to
a
a
0 75
g
0 23
Typ
200
200
0 7
5 0
3 0
0 2
2 0
5 0
0 1
5 1
4 1
20
a
125 C
150 C
260 C
14
85 C
b
Max
13 0
4 0
1 5
6 0
3 0
7 0
0 4
0 5
6 0
5 0
25
50
10
65 C to
a
165 C W junction
0 C to
LF311
a
a
V mV
Units
150 C
260 C
mV
mA
mV
mA
mA
pA
pA
nA
mA
70 C
nA
nA
ns
V
V
V