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Lm358 Unit 4

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Lm358 Unit 4
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LM358, LM258, LM2904, LM2904V Dual Low Power Operational Amplifiers
Utilizing the circuit designs perfected for recently introduced Quad Operational Amplifiers, these dual operational amplifiers feature 1) low power drain, 2) a common mode input voltage range extending to ground/VEE, 3) single supply or split supply operation and 4) pinouts compatible with the popular MC1558 dual operational amplifier. The LM158 series is equivalent to one–half of an LM124. These amplifiers have several distinct advantages over standard operational amplifier types in single supply applications. They can operate at supply voltages as low as 3.0 V or as high as 32 V, with quiescent currents about one–fifth of those associated
…show more content…
Power Supply Current versus Power Supply Voltage
2.4 ICC , POWER SUPPLY CURRENT (mA) 2.1 1.8 1.5 1.2 0.9 0.6 0.3 0 0 5.0 10 15 20 25 VCC, POWER SUPPLY VOLTAGE (V) 30 35 I IB , INPUT BIAS CURRENT (nA) TA = 25°C RL =

Figure 6. Input Bias Current versus Supply Voltage

R

90

80

70

0

2.0

4.0

6.0 8.0 10 12 14 16 VCC, POWER SUPPLY VOLTAGE (V)

18

20

4

MOTOROLA ANALOG IC DEVICE DATA

LM358, LM258, LM2904, LM2904V
Figure 7. Voltage Reference
R1 VCC VCC –
1/2

Figure 8. Wien Bridge Oscillator
50 k

R2

5.0 k 10 k VO Vref –
1/2

VCC VO 1 fo = 2 π RC R C For: fo = 1.0 kHz R = 16 kΩ C = 0.01 µF

LM358

MC1403 2.5 V

+ 1 Vref = VCC 2 R1 VO = 2.5 V (1 + ) R2 R

LM358

+

C

Figure 9. High Impedance Differential Amplifier e1 +
1/2

Figure 10. Comparator with Hysteresis

1 CR

R R2 R1 eo Vref Vin Hysteresis VOH VO VO

LM358

– a R1 b R1 –
1/2 1/2



R1

+
1/2

LM358

+ 1 CR R

LM358



VOL

VinL Vref

VinH

LM358

e2

+

R1 (V – V )+ V VinL = R1 + R2 OL ref ref R1 (V – V ) + Vref VinH = R1 + R2 OH ref H= R1 (VOH – VOL) R1 + R2

eo = C (1 + a + b) (e2 – e1)

Figure 11. Bi–Quad Filter
R Vin C1 R2 – C
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Where fo and BW are expressed in Hz.

If source impedance varies, filter may be preceded with voltage follower buffer to stabilize filter parameters.

6

MOTOROLA ANALOG IC DEVICE DATA

LM358, LM258, LM2904, LM2904V
OUTLINE DIMENSIONS
N SUFFIX PLASTIC PACKAGE CASE 626–05 ISSUE K
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. DIM A B C D F G H J K L M N MILLIMETERS MIN MAX 9.40 10.16 6.10 6.60 3.94 4.45 0.38 0.51 1.02 1.78 2.54 BSC 0.76 1.27 0.20 0.30 2.92 3.43 7.62 BSC ––– 10_ 0.76 1.01 INCHES MIN MAX 0.370 0.400 0.240 0.260 0.155 0.175 0.015 0.020 0.040 0.070 0.100 BSC 0.030 0.050 0.008 0.012 0.115 0.135 0.300 BSC ––– 10_ 0.030 0.040

8

5

–B–
1 4

F
NOTE 2

–A– L

C –T–
SEATING PLANE

J N D

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