Features

Applications

MODULE

Si photodiode evaluation circuit

Easy-to-use circuit for Si photodiode operation

C9052 series

PRELIMINARY DATA

Aug. 2002

l Allows easy evaluation of standard Si photodiodes

l On-board circuit examples for typical applications of

Si photodiodes

l Multiple circuits assembled on one board

l Support board (C9052-04 with dedicated cable

A9053) for processing output signals from head board

(C9052-01/-02/-03 with dedicated cable A9053-01)

l Testing and evaluation of standard Si photodiodes

l Simple optical power meters

1

I Absolute maximum rating

Parameter

Symbol

C9052-01

C9052-02

C9052-03

C9052-04

Unit

Maximum supply voltage

Vcc Max.

±15

+15

+12

V

Operating temperature

Topr

+10 to +40

°C

Storage temperature

Tstg

0 to +50

°C



Low noise AC amplifier circuit, photocurrent-to-voltage conversion circuit and wide band amplifier circuit on one board

Circuit configuration

Features

Low noise AC amplifier circuit Low noise AC amplifier circuit using FET, bandwidth 160 to 1 MHz, trans-impedance 15 kV/A

Photocurrent-to-voltage

conversion circuit

Current-to-voltage conversion circuit with bandwidth of DC to 100 kHz and feedback resistance

of 100 kW

Wide band amplifier circuit

Amplifier circuit with bandwidth of DC to 1 MHz and trans-impedance of 30 kV/A

<Usable photodiodes>

Standard Si PIN photodiodes with metal package (TO-18, TO-5, TO-8): S5821 series, etc.

Light balance detection circuit, light-to-logarithmic voltage conversion circuit and light integration circuit on one board

Circuit configuration

Features

Light balance detection circuit Detects output balance between two photodiodes when light enters them and outputs the light

level difference as a voltage.

Light-to-logarithmic voltage

conversion circuit

Outputs a voltage in proportion to logarithmic change in detected light level

Light integration circuit

Converts input pulsed light of constant cycle into DC signal. Controlled by external integration

reset pulses.

<Usable photodiodes>

Standard Si photodiodes with metal package (TO-18, TO-5, TO-8): S2386 series, etc.

Standard Si photodiodes with ceramic package (except -16BQ/-16BK/-16BR types): S1337-1010BR, S1227-1010BR, etc.

Two types of light-to-frequency conversion circuits assembled on one board

Circuit configuration

Features

High illuminance type

Interface circuit that outputs pulses at frequency proportional to input light from 100 to 10,000 lx.

Low illuminance type

Interface circuit that outputs pulses at frequency proportional to input light from 1 to 200 lx.

<Usable photodiodes>

S1087 (high illuminance type), S2386-5K (low illuminance type)

C9052-03

C9052-02

C9052-01