LM433MAX [NSC]
Dual Op Amp with On-Chip Fixed 2.5V Reference; 双通道运算放大器，带有片上固定的2.5V参考
| 型号： | LM433MAX |
| 厂家： | 
National Semiconductor |
| 描述： | Dual Op Amp with On-Chip Fixed 2.5V Reference |
| 文件： | 总3页 (文件大小：62K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
July 2001
LM433
Dual Op Amp with On-Chip Fixed 2.5V Reference
General Description
Features
The LM433 integrates two operational amplifiers and one
2.5V reference. The reference is based on the LMV431
adjustable shunt regulator with the output voltage adjusted
to a fixed 2.5V. The Op Amps are similar to the LM358 with
a common-mode input range that includes ground. Integrat-
ing the reference and Op Amps creates a solution for low
cost charging applications.
Dual Op Amp Circuitry
(Typical for VS = 5V)
n Input offset voltage
n Input offset current
n Input bias current
n Common-mode input voltage range
n Power supply current
Reference Circuitry
n Reference voltage
n Reference voltage deviation (−40˚C to 85˚C)
0.6mV
1nA
3nA
0V to VS−1V
150µA
Applications
2.5V
4mV
0.2mA to 10mA
n Low cost charging circuitry
n Power supplies and adapters
n Sink Current Capability
Connection Diagram
Application Circuit
8-Pin SOIC
20003902
Optocoupler Driver Circuit for Power Supply Isolation
20003901
Top View
Ordering Information
Package
Part Number
Package Marking
Transport Media
NSC
Drawing
M08A
8-Pin SOIC
LM433MA
LM433MA
LM433MA
Rails
LM433MAX
2.5k Unit Tape and Reel
© 2004 National Semiconductor Corporation
DS200039
www.national.com
Absolute Maximum Ratings (Notes 1, 3)
Input Voltage Range
−0.3V to 20V
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Operating Ratings(Note 2),(Note 3)
Temperature Range
−40˚C to 85˚C
2.5V to 16V
162˚C/W
Suppy Voltage (VS)
20V
−65˚C to 150˚C
150˚C
Supply Voltage (Note 8)
Thermal Resistance(θJA
Storage Temperature
Junction Temperature (TJ)
ESD Human Body Model
)
2kV
Electrical Characteristics
∞
The following specifications apply for both amplifiers at VS = 5V, VCM = 2.5V, VO = 2.5V, RL
wise noted.
=
, and TJ = 25˚C, unless other-
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 5)
(Note 4)
(Note 5)
OP Amp Circuitry
VOS
IOS
IB
Input Offset Voltage
Input Offset Current
Amplifier B only
−7
0
2
1
3
7
mV
nA
nA
V
Amplifier B only
Amplifier B only
Amplifier B only,
50
Input Bias Current
150
VS-1
VCM
Common-Mode Input Voltage Range
>
CMRR 50dB
IS
Power Supply Current
Voltage Gain
Total for both amplifiers
150
100
500
50
µA
dB
<
<
AV
VS = 16V, 1V VO 11V,
65
RL = 10kΩ connected to VS/2
VOL
Output Voltage Low
Output Voltage High
Output Current Source
Output Current Sink
2
mV
V
VOH
VS – 1.5
VS – 1.3
30
ISOURCE
ISINK
20
5
mA
mA
11
Reference Circuitry For Op Amp A The following specifications apply for IZ = 200µA and TJ = 25˚C, unless otherwise noted.
VZ
Reference Voltage at IN+ Terminal
Reference Voltage Deviation at IN+
Terminal Over Temperature
(Note 6),(Note 9)
2.425
2.5
4
2.575
65
V
VZDEV
−40˚C ≤ TJ ≤ 85˚C
mV
IZ (MIN)
rz
Minimum Cathode Current for
Regulation at IN+ (VZ) Terminal
Dynamic Output Impedance (Note 7)
150
0.2
200
µA
<
<
200µA IZ 1mA, Freq =
Ω
0Hz
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 , unless otherwise specified.
DC
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
, is defined as the maximum variation of the reference input voltage over the full temperature range.
ZDEV
Note 7: The Dynamic Output Impendance, r , is defined as r = ∆V /∆I
Z
z
z
Z
.
Note 8: Minimum value of operating voltage is for Amplifier B only.
Note 9: Typical Temperature drift ∆V/∆T = 12.8ppm/˚C
www.national.com
2
Physical Dimensions inches (millimeters)
unless otherwise noted
8-Pin SOIC
NS Package Number M08A
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DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
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whose failure to perform when properly used in
accordance with instructions for use provided in the
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significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
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