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LM308AのメーカーはMotorola Incです、この部品の機能は「Precision Operational Amplifier」です。 |
部品番号 | LM308A |
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部品説明 | Precision Operational Amplifier | ||
メーカ | Motorola Inc | ||
ロゴ | |||
このページの下部にプレビューとLM308Aダウンロード(pdfファイル)リンクがあります。 Total 8 pages
Order this document by LM308A/D
Precision Operational
Amplifier
The LM308A operational amplifier provides high input impedance, low
input offset and temperature drift, and low noise. These characteristics are
made possible by use of a special Super Beta processing technology. This
amplifier is particularly useful for applications where high accuracy and low
drift performance are essential. In addition high speed performance may be
improved by employing feedforward compensation techniques to maximize
slew rate without compromising other performance criteria.
The LM308A offers extremely low input offset voltage and drift
specifications allowing usage in even the most critical applications without
external offset nulling.
• Operation from a Wide Range of Power Supply Voltages
• Low Input Bias and Offset Currents
• Low Input Offset Voltage and Guaranteed Offset Voltage Drift
Performance
• High Input Impedance
LM308A
SUPER GAIN
OPERATIONAL AMPLIFIER
SEMICONDUCTOR
TECHNICAL DATA
8
1
N SUFFIX
PLASTIC PACKAGE
CASE 626
Frequency Compensation
Standard Compensation
Modified Compensation
Inverting
Input
Noninverting
Input
R2
R1
R3 +
Compen A Cf
Output
Inverting
Input
Compen B
Noninverting
Input
R1
R3
Cf ≥ 30
1
1 + R2
R1
R2
+
100 pF
Output
Compen B
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
PIN CONNECTIONS
Standard Feedforward
Compensation
Feedforward Compensations for
Decoupling Load Capacitance
10 k
Input
5.0 pF
10
k
+
500 pF
Compen A
Input
Output
Compen B
3.0 k
10 pF
RS > 10 k
100 k
C2* 10 pF
0.01 µF
500
+ Compen B
500 pF 3.0 k
Compen A
10 pF
Output
CL
75 pF to
0.01µF
*C2
>
5
x 105
R2
pF
Compen A 1
Inputs
2
3
VEE 4
–
+
8 Compen B
7 VCC
6 Output
5 NC
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
LM308AN
LM308AD
TA = 0° to +70°C
Plastic DIP
SO–8
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1996
Rev 0
1
1 Page LM308A
Figure 1. Input Bias and Input Offset Currents
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–60 –40 –20
0.25
0.20
IIO 0.15
IIB
0.10
0.05
0
0 20 40 60 80 100 120 140
T, TEMPERATURE (°C)
Figure 2. Maximum Equivalent Input Offset
Voltage Error versus Input Resistance
100
10
1.0
0.1
100 k
1.0 M
10 M
ri, INPUT RESISTANCE (Ω)
100 M
Figure 3. Voltage Gain versus Supply Voltages
130
120
110
TA = 0°C
+25°C
–55°C
+70°C
100 +125°C
90
CF = 0
f = 100 Hz
80
0
5.0 10
15
20
VCC = VEE, SUPPLY VOLTAGES (V)
Figure 4. Power Supply Currents versus
Power Supply Voltages
500
400
TA = –55°C
300 0°C
+25°C
200 +70°C
+125°C
100
0
0
5.0 10
15
20
VCC = VEE, SUPPLY VOLTAGES (V)
Figure 5. Open Loop Frequency Response
140
120
100
80
CF = 3.0 pF
60
40
20 CF = 30 pF
0
–20 CF = 100 pF
1.0 10 100 1.0 k 10 k 100 k 1.0 M 10 M 100 M
f, FREQUENCY (Hz)
Figure 6. Large Signal Frequency Response
20
VCC = +15 V
16
VEE = –15 V
TA = +25°C
12
8.0
4.0
0
1.0 k
CF = 3.0 pF
CF = 30 pF
10 k 100 k
f, FREQUENCY (Hz)
1.0 M
MOTOROLA ANALOG IC DEVICE DATA
3
3Pages LM308A
NOTE 2
–T–
SEATING
PLANE
H
OUTLINE DIMENSIONS
N SUFFIX
PLASTIC PACKAGE
CASE 626–05
ISSUE K
85
14
F
–A–
–B–
L
C
J
N
DK
M
G
0.13 (0.005) M T A M B M
NOTES:
1. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.
2. PACKAGE CONTOUR OPTIONAL (ROUND OR
SQUARE CORNERS).
3. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
MILLIMETERS
INCHES
DIM MIN MAX MIN MAX
A 9.40 10.16 0.370 0.400
B 6.10 6.60 0.240 0.260
C 3.94 4.45 0.155 0.175
D 0.38 0.51 0.015 0.020
F 1.02 1.78 0.040 0.070
G 2.54 BSC
0.100 BSC
H 0.76 1.27 0.030 0.050
J 0.20 0.30 0.008 0.012
K 2.92 3.43 0.115 0.135
L 7.62 BSC
0.300 BSC
M ––– 10_ ––– 10_
N 0.76 1.01 0.030 0.040
D SUFFIX
PLASTIC PACKAGE
CASE 751–05
(SO–8)
ISSUE R
AD
8
E
1
5
H
4
0.25 M B M
Be
C
h X 45 _
q
A
SEATING
PLANE
A1 B
0.10
0.25 M C B S A S
C
L
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. DIMENSIONS ARE IN MILLIMETERS.
3. DIMENSION D AND E DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS
OF THE B DIMENSION AT MAXIMUM MATERIAL
CONDITION.
MILLIMETERS
DIM MIN MAX
A 1.35 1.75
A1 0.10 0.25
B 0.35 0.49
C 0.18 0.25
D 4.80 5.00
E 3.80 4.00
e 1.27 BSC
H 5.80 6.20
h 0.25 0.50
L 0.40 1.25
q 0_ 7_
6 MOTOROLA ANALOG IC DEVICE DATA
6 Page | |||
ページ | 合計 : 8 ページ | ||
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