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參數(shù)資料
| 型號(hào)： | LM432 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Dual Op Amp with On-Chip Fixed 2.5V Reference |
| 中文描述： | 雙運(yùn)算放大器帶有片上固定2.5V參考 |
| 文件頁(yè)數(shù)： | 2/3頁(yè) |
| 文件大小： | 61K |
| 代理商： | LM432 |
Absolute Maximum Ratings
(Notes 1, 3)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Suppy Voltage (V
S
)
Storage Temperature
Junction Temperature (T
J
)
ESD Human Body Model
20V
65C to 150C
150C
2kV
Input Voltage Range
0.3V to 20V
Operating Ratings
(Note 2)
,
(Note 3)
Temperature Range
Supply Voltage (Note 8)
Thermal Resistance(
θ
JA
)
40C to 85C
2.5V to 16V
162C/W
Electrical Characteristics
The following specifications apply for both amplifiers at V
S
= 5V, V
CM
= 2.5V, V
O
= 2.5V, R
L
=
∞
, and T
J
= 25C, unless other-
wise noted.
Symbol
Parameter
Conditions
Min
(Note 5)
Typ
(Note 4)
Max
(Note 5)
Units
OP Amp Circuitry
V
OS
I
OS
I
B
V
CM
Input Offset Voltage
Input Offset Current
Input Bias Current
Common-Mode Input Voltage Range
Amplifier B only
Amplifier B only
Amplifier B only
Amplifier B only,
CMRR
>
50dB
Total for both amplifiers
V
S
= 16V, 1V
<
V
O
<
11V,
R
L
= 10k
connected to V
S
/2
4
0.6
1
3
4
50
150
V
S
-1
mV
nA
nA
V
0
I
S
A
V
Power Supply Current
Voltage Gain
150
100
500
μA
dB
65
V
OL
V
OH
I
SOURCE
I
SINK
Reference Circuitry For Op Amp A
The following specifications apply for I
Z
= 200μA and T
J
= 25C, unless otherwise noted.
V
Z
Reference Voltage at IN
+
Terminal
V
ZDEV
Reference Voltage Deviation at IN
+
Terminal Over Temperature
(Note 6),(Note 9)
I
Z (MIN)
Minimum Cathode Current for
Regulation at IN
+
(V
Z
) Terminal
r
z
Dynamic Output Impedance (Note 7)
0Hz
Output Voltage Low
Output Voltage High
Output Current Source
Output Current Sink
2
50
mV
V
mA
mA
V
S
– 1.5
20
5
V
S
– 1.3
30
11
2.450
2.5
4
2.550
65
V
40C
≤
T
J
≤
85C
mV
150
200
μA
200μA
<
I
Z
<
1mA, Freq =
0.2
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
Note 2:
Operating Rating indicate conditions for which the device is functional. These rating do not guarantee specific performance limits. For guaranteed
specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance
characteristics may degrade when the device is not operated under the listed test conditions.
Note 3:
All voltages are measured with respect to GND = 0V
DC
, unless otherwise specified.
Note 4:
Typicals represent the most likely parametic norm.
Note 5:
Guaranteed to National’s Average Outgoing Quality Level (AOQL).
Note 6:
Reference voltage deviation, V
ZDEV
, is defined as the maximum variation of the reference input voltage over the full temperature range.
Note 7:
The Dynamic Output Impendance, r
z
, is defined as r
z
=
V
Z
/
I
Z
.
Note 8:
Minimum value of operating voltage is for Amplifier B only.
Note 9:
Typical Temperature drift
V/
T = 12.8ppm/C
L
www.national.com
2
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