C2719 데이터 시트보기 (PDF) - Hamamatsu Photonics

부품명

상세내역

제조사

C2719

Photosensor amplifier

Hamamatsu Photonics 

I Precaution for use

G When an external power supply is used for C2719, volt-

age is supplied regardless of whether the power switch

of C2719 is on or off. Use the power switch of the external

power supply to turn voltage on and off.

G There are photodiodes whose cathode is connected to

the metal package. To connect the cathode of such a

photodiode to C2719, be sure to hold the photodiode

with insulator as shown in Figure 12. The signal current

cannot be obtained if the photodiode package is

grounded.

Figure 12 Connection to photodiode whose cathode is

connected to metal package

INSULATOR

LIGHT

K

PHOTODIODE

A

PACKAGE

METAL CASE

TO C2719

KACCC0035EA

Photosensor amplifier C2719

G Avoid using C2719 in locations subjected to excessive

vibrations. If unavoidable, use a low-noise coaxial cable

as the signal input cable.

G In low-light-level detection circuits, insulation resistance

of the circuit board and other insulation materials can

affect measurement accuracy. Avoid humidity and soiling.

G Noise increases when the input capacitance becomes

larger, so keep the input coaxial cable as short as pos-

sible.

G Remove the batteries when C2719 is not to be used for a

long period.

G An input protection circuit is incorporated, but even so, do

not apply more than ±100 V.

G For external power supply, use a regulated DC power

supply with a ripple of less than 3 mVp-p. Make sure that

the supply voltage does not exceed ±15 V even momen-

tarily. Avoid using a switching power supply, as this can

cause noise problems during measurement.

Photosensor amplifier C6386

Hamamatsu also provides C6386 high-speed photosensor amplifier that incorporates a photodiode at the installation port of

the optical fiber (1 meter long).

Features

l Easy handling

Built-in photodiode allows easy detection of light just by

connecting to a voltmeter.

l Optical fiber light input

Measures light at a narrow detection point. Separating the

amplifier from the detection point allows measurement in

unusual environments and improves S/N.

l High-speed response

l Three sensitivity ranges

Range

H

M

L

Photocurrent

detection sensitivity

Cut-off frequency

10# V/A

1 MHz

10" V/A

3 MHz

10!V/A

10 MHz

5

Share Link: