MC33072ADR2G 查看數據表（PDF） - ON Semiconductor

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MC33072ADR2G

Single Supply 3.0 V to 44 V Operational Amplifiers

ON Semiconductor 

MC34071,2,4,A MC33071,2,4,A, NCV33072,4,A

R2

Vref R1

Vin

+

MC34071

-

R1

VinL = R1+R2 (VOL-Vref)+Vref

R1

VinH = R1+R2 (VOH-Vref)+Vref

R1

VH = R1+R (VOH -VOL)

VO

VOH

VOL

Hysteresis

Vin

VinL VinH

Vref

Figure 50. Low Input Voltage Comparator

with Hysteresis

Iout

Vin

+

MC34071

-

Iout =

Vin±VIO

R

R

Figure 51. High Compliance Voltage to

Sink Current Converter

R1

R2

R4

- 1/2

R3

MC34072

- 1/2

VO

+V1

+

MC34072

+

+V2

R2 = R4 (Critical to CMRR)

R1 R3

VO = 1

+ R4

R3

V2-V1 R4

R3

For (V2 ≥ V1), V > 0

Figure 52. High Input Impedance

Differential Amplifier

Vin

+

MC34071

-

VO = Vin (pk)

+

RL

VP 10,000 pF

Vin

VP

t

Figure 54. Low Voltage Peak Detector

+Vref

RF

R

R

R = DR

R

-

VO

MC34071

+

DR < < R

RF

RF > > R

VO = Vref

DR RF

2R2

(VO ≥ 0.1 V)

Figure 53. Bridge Current Amplifier

fOSC ^ 0.85

RC V

+ IB

VP 0

t

-

+

ISC

t

Base Charge

Removal

- 1/2 R

MC34072

C

+

V+

100 k

100 k

47 k

Iout

+ 1/2

MC34072

- ±IB

VP

Pulse Width

Control Group

OSC

Comparator

High Current

Output

Figure 55. High Frequency Pulse

Width Modulation

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