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參數(shù)資料
| 型號(hào)： | LF311H |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Voltage Comparators |
| 中文描述： | COMPARATOR, 10000 uV OFFSET-MAX, 200 ns RESPONSE TIME, MBCY8 |
| 封裝： | METAL CAN-8 |
| 文件頁(yè)數(shù)： | 3/11頁(yè) |
| 文件大?。?/td> | 219K |
| 代理商： | LF311H |
Electrical Characteristics
(LF311) (Note 3)
Parameter
Conditions
Min
Typ
Max
Units
Input Offset Voltage (Note 4)
T
A
e
25
§
C, R
S
s
50k
T
A
e
25
§
C, V
CM
e
0 (Note 6)
T
A
e
25
§
C, V
CM
e
0 (Note 6)
T
A
e
25
§
C
T
A
e
25
§
C
V
IN
s
b
10 mV, I
OUT
e
50 mA, T
A
e
25
§
C
T
A
e
25
§
C
V
IN
t
10mV, V
OUT
e
35V, T
A
e
25
§
C
2.0
10
mV
Input Offset Current (Note 4)
5.0
75
pA
Input Bias Current
25
150
pA
Voltage Gain
200
V/mV
Response Time (Note 5)
200
ns
Saturation Voltage
0.75
1.5
V
Strobe On Current
3.0
mA
Output Leakage Current
0.2
10
nA
Input Offset Voltage (Note 4)
R
S
s
50k
15
mV
Input Offset Current (Note 4)
V
S
e
g
15V, V
CM
e
0 (Note 6)
1.0
nA
Input Bias Current
V
S
e
15V, V
CM
e
0 (Note 6)
3.0
nA
Input Voltage Range
a
14
b
13.5
V
V
Saturation Voltage
V
a
t
4.5V, V
b
e
0
V
IN
s
b
10 mV, I
OUT
s
8.0 mA
T
A
e
25
§
C
T
A
e
25
§
C
0.23
0.4
V
Positive Supply Current
5.1
7.5
mA
Negative Supply Current
4.1
5.0
mA
Note 1:
This rating applies for
g
15V 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 LF111 is
a
150
§
C, the LF211 is
a
110
§
C and the LF311 is
a
85
§
C. For operating at elevated temperatures,
devices in the H08 package must be derated based on a thermal resistance of
a
165
§
C/W, junction to ambient, or
a
20
§
C/W, junction to case.
Note 3:
These specifications apply for V
S
e
g
15V and
b
55
§
C
s
T
A
s
a
125
§
C for the LF111, unless otherwise stated. With the LF211, however, all temperature
specifications are limited to
b
25
§
C
s
T
A
s
a
85
§
C and for the LF311 0
§
C
s
T
A
s
a
70
§
C. The offset voltage, offset current and bias current specifications apply for
any supply voltage from a single 5.0 mV supply up to
g
15V 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 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 increaseDsee 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
Offset Balancing
TL/H/5703–13
Strobing
TL/H/5703–14
Note:
Do Not Ground Strobe Pin.
Increasing Input
Stage Current
*
TL/H/5703–15
*
Increases typical common
mode slew from 7.0V/
m
s to
18V/
m
s
3
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