MC3303P datasheet(6/8 Pages) ONSEMI

No de pièce	MC3303P

Description	QUAD DIFFERENTIAL INPUT OPERATIONAL AMPLIFIERS

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Fabricant	ONSEMI [ON Semiconductor]

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MC3403 MC3303

6

MOTOROLA ANALOG IC DEVICE DATA

1

2

1

C

1

2

1

2

πRC

1

C

Figure 9. High Impedance Differential Amplifier

Figure 10. Comparator with Hysteresis

Figure 11. Bi–Quad Filter

–

+

e1

e2

R

eo

R

b R1

R1

eo = C (1 +a +b) (e2 –e1)

1/2

MC3403

1/2

MC3403

1/2

MC3403

a R1

–

+

R

R1

R1 +R2

–

+

Vref

Vin

R1

R2

VO

VOH

VOL

VinL VinH

Vref

Hysteresis

VinL =

VinH =

Vh =

(VOL –Vref) +Vref

(VOH –Vref) +Vref

(VOH –VOL)

1/2

MC3403

R1

R1 +R2

R1

R1 +R2

Vref =

VCC

–

+

R2

C1

Vin

Vref

R

100 k

R2

R1

R3

C1

Bandpass

Output

R = 160 k

Ω

C = 0.001

µF

R1 = 1.6 M

Ω

R2 = 1.6 M

Ω

R3 = 1.6 M

Ω

= center frequency gain

= passband notch gain

fo =

R1 = QR

R2 =

R3 = TNR2

C1 = 10 C

fo

Q

TBP

TN

R1

TBP

R

C

Notch Output

1/2

MC3403

1/2

MC3403

1/2

MC3403

1/2

MC3403

–

+

1

2

Figure 12. Function Generator

Vref =

VCC

Triangle Wave

Output

Vref

Square Wave

Output

Vref

R2

R3

75 k

300 k

R1

100 k

Rf

C

–

f =

R1 +RC

if R3 =

R2 R1

R2 +R1

+

1/2

MC3403

1/2

MC3403

–

+

Q

π fo C

Figure 13. Multiple Feedback Bandpass Filter

1/2

MC3403

–

+

Vin

R1

C

R3

VCC

VO

CO

CO = 10 C

Vref

R2

Vref =

VCC

fo = center frequency

Given:

A(fo) = gain at center frequency

Choose value fo, C

Then:

R3 =

R2 =

R1 =

For less than 10% error from operational amplifier

where fo and BW are expressed in Hz.

If source impedance varies, filter may be preceded with

voltage follower buffer to stabilize filter parameters.

R3

2 A(fo)

R1 R5

4Q2 R1 –R5

Oo fo

< 0.1

BW

For:

= 1.0 kHz

= 10

= 1

Where:

TBP

TN

4 CRf R1

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