MSK738E [MSK]
INVERTING OPERATIONAL AMPLIFIER; 反相运算放大器
| 型号： | MSK738E |
| 厂家： | 
M.S. KENNEDY CORPORATION |
| 描述： | INVERTING OPERATIONAL AMPLIFIER |
| 文件： | 总5页 (文件大小：266K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ISO-9001 CERTIFIED BY DSCC
INVERTING
OPERATIONAL AMPLIFIER
738
(315) 701-6751
M.S.KENNEDY CORP.
4707 Dey Road Liverpool, N.Y. 13088
MIL-PRF-38534 CERTIFIED
FEATURES:
Very Fast Settling Time
Very Fast Slew Rate
Wide Bandwidth
Low Noise
Very Accurate (Low Offset)
DESCRIPTION:
The MSK 738 is an inverting operational amplifier that exhibits an impressive combination of high speed and precision
D.C. characteristics. The Op-amp's very fast slew rate, very fast settling time and wide bandwidth, along with its ex-
tremely low input offset voltage, offset drift and low noise, make it an outstanding performer.
EQUIVALENT SCHEMATIC
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
PIN-OUT INFORMATION
Compensation
Negative Power Supply
NC
1
2
3
4
5
6
7 Balance
8 Balance
High Performance Data Aquisition
Coaxial Line Driver
9 Positive Power Supply
10 NC
11 Output
Data Conversion Circuits
High Speed Communications
Inverting Input
Non-Inverting Input
Ground
12 Case Connection
Rev. B 6/03
1
ABSOLUTE MAXIMUM RATINGS
Storage Temperature Range
Lead Temperature Range
(10 Seconds Soldering)
Power Dissipation
-65°C to +150°C
300°C
Supply Voltage
Peak Output Current
TST
TLD
VCC
+18V
200mA
12V
IOUT
Differential Input Voltage
Case Operating Temperature Range
VIN
TC
See Curve
150°C
PD
TJ
Junction Temperature
(MSK 738B/E)
(MSK 738)
-55°C to+125°C
-40°C to +85°C
ELECTRICAL SPECIFICATIONS
Vccꢀ 15V Unless Otherwise Specified
Group A
MSK 738B/E
MSK 738
Typ.
Test Conditions
Parameter
Units
Subgroup
Typ.
Max.
Min.
Min.
Max.
STATIC
2
-
1
Supply Voltage Range
Quiescent Current
± 1±
± 3ꢀ
± 40
46
± 18
± 40
± 42
-
± 1±
± 3ꢀ
-
V
± 12
± 12
± 18
VIN=0V
AV=-1V/V
mA
-
-
-
-
-
-
± 42
2,3
-
mA
-
-
2
Thermal Resistance
INPUT
Input Offset Voltage
Junction to Case Output Devices
46
°C/W
1
Bal. Pins=NC VIN=0V AV=-100V/V
VIN=0V
± 2±
± 7±
± 1
± ±0
-
µV
µV/°C
mV
-
-
-
-
± 100
-
2
2,3
Input Offset Voltage Drift
Input Offset Adjust
± 0.±
Adjust to zero
Adjust to zero
Adjust to zero
1
RPOT=10KΩ To+VCC AV=-1V/V
2,3
-
± 20
-
mV
-
-
-
-
-
-
-
-
-
-
-
7
1
Input Bias Current
VCM=0V
Either Input
VCM=0V
± 10
± 20
2
± 40
nA
-
-
-
-
-
-
-
-
-
± 60
2,3
± 80
-
nA
1
Input Offset Current
20
40
-
10
-
30
nA
2,3
±
nA
-
-
-
-
-
-
-
Input Impedance
2
F=DC Differential
±
±
MΩ
Power Supply Rejection Ratio
2
∆VCC=± ±V
F= 0.1Hz To 10Hz
F=1KHz
1
10
-
2
20
-
µV/V
µVp-p
nV√Hz
pA√Hz
2
Input Noise Voltage
0.1±
3.8
0.6
0.2
4
Input Noise Voltage Density
Input Noise Current Density
2
2
-
-
F=1KHz
-
0.7
-
OUTPUT
4
4
4
4
4
Output Voltage Swing
Output Current
RL=100Ω AV=-3V/V F≤20MHz
AV=-3V/V TJ<1±0°C
0.1% 10V step
± 12
± 120
30
-
-
± 10 ± 11.8
± 100 ± 120
-
-
V
± 10
± 100
-
mA
nS
2
Settling Time
1
40
-
-
3±
20
4±
-
Full Power Bandwidth
RL=100Ω Vo=± 10V
RL=100Ω
22
MHz
MHz
20
1±
2
Bandwidth (Small Signal)
200
-
16±
1ꢀ0
-
17±
TRANSFER CHARACTERISTICS
Slew Rate
4
4
VOUT=± 10V RL=100Ω Av=-1.±V/V
RL=1KΩ F=1KHz
3200 3±00
100
110
3200
10±
V/µS
dB
-
-
3±00
ꢀ±
-
-
Open Loop Voltage Gain
2
VOUT=± 10V
NOTES:
1
AV= -1, measured in false summing junction circuit.
2 Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only.
Industrial grade and "E" suffix devices shall be tested to subgroups 1 and 4 unless otherwise specified.
Military grade devices ("B" suffix) shall be 100% tested to subgroups 1,2,3 and 4.
Subgroups 5 and 6 testing available upon request.
3
4
5
6
TA=TC=+25°C
TA=TC=+125°C
TA=TC=-55°C
Subgroup 1,4
Subgroup 2,5
Subgroup 3,6
Measurement taken 0.5 seconds after application of power using automatic test equipment.
7
Rev. B 6/03
2
APPLICATION NOTES
HEAT SINKING
The heat sink in this example must have a thermal resistance of
no more than 8.±°C/W to maintain a junction temperature of no
more than +12±°C.
To determine if a heat sink is necessary for your application and
if so, what type, refer to the thermal model and governing equation
below.
Thermal Model:
OFFSET NULL
Typically, the MSK 738(B) has an input offset voltage of less than
± 2±µV. If it is desirable to adjust the offset closer to "zero", or to
a value other than "zero", the circuit below is recommended. RP
should be a ten-turn 10KΩ potentiometer. Typical offset adjust is
± ±mV.
Governing Equation:
TJ=PD x (RθJC + RθCS + RθSA) + TA
Potentiometer values ranging from 1KΩ to 1MΩ can be used with
only a small amount of degradation (typically 0.1± to 0.2±µV/°C) of
input offset voltage drift. If the input offset voltage is to be trimmed
to a value other than "zero", the following formula can be used to
approximate the change in input offset voltage drift:
Where
TJ=Junction Temperature
PD=Total Power Dissipation
RθJC=Junction to Case Thermal Resistance
RθCS=Case to Heat Sink Thermal Resistance
RθSA=Heat Sink to Ambient Thermal Resistance
TC=Case Temperature
∆VOSD=VOS (trimmed)/2±0
Recommended External Component Selection Guide
TA=Ambient Temperature
TS=Sink Temperature
APPROXIMATE
DESIRED GAIN
RI(+)
RI(-)
Rf(Ext)
Cf
C1
Example:
1
2
2
2
2
2
2
1µf
1µf
1µf
1µf
1µf
1µf
-1
4ꢀꢀΩ
330Ω
16ꢀΩ
100Ω
ꢀ0.ꢀΩ
100Ω
1KΩ
4ꢀꢀΩ
200Ω
124Ω
100Ω
100Ω
1KΩ
1KΩ
1KΩ
1KΩ
1KΩ
2KΩ
This example demonstrates a worst case analysis for the op-amp
output stage. This occurs when the output voltage is 1/2 the power
supply voltage. Under this condition, maximum power transfer oc-
curs and the output is under maximum stress.
1
-2
1
-±
1
-8
1
-10
Conditions:
1
-20
VCC=± 16VDC
VO=± 8Vp Sine Wave, Freq.=1KHz
RL=100Ω
For a worst case analysis we will treat the +8Vp sine wave
as an 8VDC output voltage.
1.) Find Driver Power Dissipation
PD=(VCC-VO) (VO/RL)
=(16V-8V) (8V/100Ω)
=0.64W
2.) For conservative design, set TJ=+12±°C
3.) For this example, worst case TA=+ꢀ0°C
4.) RθJC=46°C/W from MSK 738B Data Sheet
±.) RθCS=0.1±°C/W for most thermal greases
6.) Rearrange governing equation to solve for RθSA
RθSA=((TJ-TA)/PD) - (RθJC) - (RθCS)
=((12±°C -ꢀ0°C)/0.64W) - 4±°C/W - 0.1±°C/W
=±4.7 - 46.1±
1
2
The positive input resistor is selected to minimize any bias current induced offset
voltage.
The feedback capacitor will help compensate for stray input capacitance. The value of
this capacitor can be dependent on individual applications. A 2 to 9 pf capacitor is
usually optimum for most applications.
=8.±°C/W
3
Rev. B 6/03
TYPICAL PERFORMANCE CURVES
4
Rev. B 6/03
MECHANICAL SPECIFICATIONS
NOTE:Standard cover height:
MSK 738 0.200 Max.
Alternate lid heights available
NOTE: ALL DIMENSIONS ARE ± 0.010 INCHES UNLESS OTHERWISE LABELED.
ORDERING INFORMATION
MSK738 B
SCREENING
BLANK=INDUSTRIAL; B=MIL-PRF-38534 CLASS H
E=EXTENDED RELIABILITY
GENERAL PART NUMBER
M.S. Kennedy Corp.
4707 Dey Road, Liverpool, New York 13088
Phone (315) 701-6751
FAX (315) 701-6752
www.mskennedy.com
The information contained herein is believed to be accurate at the time of printing. MSK reserves the right to make
changes to its products or specifications without notice, however, and assumes no liability for the use of its products.
Please visit our website for the most recent revision of this datasheet.
Rev. B 6/03
5
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