HCPL-257K-300 Ver la hoja de datos (PDF) - HP => Agilent Technologies

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componentes Descripción

Fabricante

HCPL-257K-300

Hermetically Sealed, Transistor Output Optocouplers for Analog and Digital Applications

HP => Agilent Technologies 

+12 V

0.1 µF

VIN

0.1 µF

51 Ω

47 µF

1 kΩ

2.1 kΩ

100 Ω

Q1

RF

22 Ω

1N4150

D.U.T.

VCC

VO

1.2 kΩ

9.1 kΩ

Q3

Q2

VB

15 kΩ 100 Ω 470

Ω

GND

SINGLE CHANNEL TESTING,

INDEPENDENT VCC DEVICES

TRIM FOR UNITY GAIN

0.01 µF

+12 V

0.01 µF

VO

(1 MΩ, 12 pF

TEST INPUT)

Q1, Q2, Q3: 2N3904

TYPICAL LINEARITY = +3 % AT VIN = 1 VP-P

TYPICAL SNR = 50 dB

TYPICAL RF = 375 Ω

TYPICAL VO dc = 3.8 V

TYPICAL IF = 9 mA

+5 V

SET IF

20 kΩ

D.U.T.

VCC

AC INPUT

0.1 µF

560 Ω

2N3053

1.6 Vdc

0.25 VP-P ac

100 Ω

GND

COMMON

VCC DEVICES

+15 V

100 Ω

VO

Figure 8. Frequency Response.

+15

TA = 25 °C

+10

+5

INDEPENDENT

VCC DEVICES

0

-5

COMMON VCC

-10 DEVICES

-15

-20

0.1

1.0

10

100

f – FREQUENCY – MHz

PULSE GEN.

ZO = 50 Ω

tr = 5 ns

IF

IF MONITOR

100 Ω

D.U.T.

VCC

GND

+5 V

RL

VO

CL* = 50 pF

SINGLE CHANNEL

OR COMMON VCC DEVICES

10 % DUTY CYCLE

1/f < 100 µs

NOTES:

* CL INCLUDES PROBE AND STRAY WIRING CAPACITANCE.

BASE LEAD NOT CONNECTED.

*JEDEC Registered Data.

Figure 9. Switching Test Circuit.*

1-568

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