MC33171 datasheet(8/15 Pages) ONSEMI

Part #	MC33171

Description	Low Power Operational Amplifiers

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Manufacturer	ONSEMI [ON Semiconductor]

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MC33171, 2, 4, NCV33172, 4

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8

Figure 10. AC Coupled Noninverting Amplifier

with Single +5.0 V Supply

Figure 11. AC Coupled Inverting Amplifier

with Single +5.0 V Supply

Figure 12. DC Coupled Inverting Amplifier

Maximum Output Swing with Single

+5.0 V Supply

Figure 13. Offset Nulling Circuit

Figure 14. Active High−Q Notch Filter

Figure 15. Active Bandpass Filter

2.2 k

510 k

VCC

100 k

Cin

Vin

1.0 k

+

-

CO

VO

3.6 Vpp

AV = 101

BW ( -3.0 dB) = 20 kHz

VO 0

100 k

VCC

100 k

CO

VO

+

-

10 k

Cin

Vin

AV = 10

BW ( -3.0 dB) = 200 kHz

10 k

100 k

VCC

50 k

RL

4.7 k

+

-

100 k

1.0 M

VO

Vin

4.2 Vpp

VO 2.5 V

AV = 10

BW ( -3.0 dB) = 200 kHz

VCC

7

3

6

2

5

1

4

10 k

VEE

+

-

Offset Nulling range is approximately

±80 mV with

a 10 k potentiometer, MC33171 only.

Vin

-

+

VO

0.01

2C

0.02

2R

32 k

fo = 1.0 kHz

fo =

1

4 p RC

Vin ≥ 0.2 Vdc

2C

0.02

16 k

Vin

R1

1.1 k

R2

5.6 k

R3

2.2 k

-

+

VO

C

0.047

0.4

VCC

fo = 30 kHz

Q = 10

HO = 1.0

R1 =

R3

2 HO

R2 =

R3 =

Q

p foC

R1 R3

4Q2R1 -R3

Qo fo

GBW

< 0.1

Given fo = center frequency

Ao = Gain at center frequency

Choose Value fo, Q, Ao, C

For less than 10% error for operational amplifier, where fo and GBW are expressed in Hz.

C

0.047

RL

100 k

RL

R

C

R

VCC

Then:

3.8 Vpp

VO 0

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