lf311 National Semiconductor Corporation, lf311 Datasheet - Page 3

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

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
Note 3 These specifications apply for V
specifications are limited to
any supply voltage from a single 5 0 mV 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
Auxiliary Circuits
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
Positive Supply Current
Negative Supply Current
Parameter
Offset Balancing
b
25 C
g
15V supplies The positive input voltage limit is 30V above the negative supply The negative input voltage limit is equal to the
TL H 5703 – 13
s
T
A s
S
a
e
85 C and for the LF311 0 C
g
T
T
T
T
T
V
T
V
R
V
V
V
V
T
T
15V and
A
A
A
A
A
IN s
A
IN t
S
S
IN s
A
A
S s
a
e
e
e
e
e
e
e
e
e
e
t
50k
25 C R
25 C V
25 C V
25 C
25 C
25 C
15V V
25 C
25 C
g
b
10mV V
b
4 5V V
g
(LF311) (Note 3)
15V V
b
10 mV I
10 mV I
15V supplies
55 C
Note Do Not Ground Strobe Pin
CM
a
CM
CM
S s
b
s
CM
150 C the LF211 is
Conditions
OUT
e
e
T
e
e
A s
50k
OUT
OUT s
e
0 (Note 6)
0
0 (Note 6)
0 (Note 6)
e
a
0 (Note 6)
e
35V T
125 C for the LF111 unless otherwise stated With the LF211 however all temperature
s
8 0 mA
T
Strobing
50 mA T
A s
a
3
A
a
70 C The offset voltage offset current and bias current specifications apply for
e
165 C W junction to ambient or
25 C
a
A
TL H 5703 – 14
110 C and the LF311 is
e
25 C
Min
a
85 C For operating at elevated temperatures
a
Increases typical common
mode slew from 7 0V ms to
18V ms
20 C W junction to case
b
a
0 75
0 23
Typ
Increasing Input
200
200
2 0
5 0
3 0
0 2
1 0
3 0
5 1
4 1
25
Stage Current
13 5
14
TL H 5703 – 15
Max
150
1 5
0 4
7 5
5 0
10
75
10
15
V mV
Units
mV
mA
mV
mA
mA
pA
pA
nA
nA
nA
ns
V
V
V
V