PHOTODIODE

Si photodiode with preamp

Photodiode and preamp integrated with feedback resistance and capacitance

S8745-01, S8746-01

S8745-01, S8746-01 are low-noise sensors consisting of Si photodiode, op amp, and feedback resistance and capacitance, all integrated into a

small package. By simply connecting to a power supply, S8745-01 and S8746-01 can be used in low-light-level measurement such as analytical

equipment and measurement equipment. The active area of the photodiode is internally connected to the GND terminal making it highly resistant

to EMC noise.

Features

Applications

S8745-01: TO-5

S8746-01: TO-8

S8745-01: 2.4 × 2.4 mm

S8746-01: 5.8 × 5.8 mm

dissipation

l Spectrophotometry

l General-purpose optical measurement

1

s Absolute maximum ratings (Ta=25

°C)

Parameter

Symbol

Value

Unit

Supply voltage (op amp)

Vcc

±20

V

Power dissipation

P

500

mW

Operating temperature

Topr

-20 to +60

°C

Storage temperature

Tstg

-30 to +80

°C

s Electrical and optical characteristics (Typ. Ta=25

Parameter

Symbol

Condition

S8745-01

S8746-01

Unit

Spectral response range

λ

190 to 1100

nm

Peak sensitivity wavelength

λp

960

nm

Feedback resistance (built-in)

Rf

1

G

Ω

Feedback capacitance (built-in)

Cf

5

pF

λ=200 nm

0.12

Photo sensitivity

S

λ=λp0.52

V/nW

Dark state f=10 Hz

6

7

Output noise voltage

Vn

Dark state, f=20 Hz

5

6

µVrms/Hz

1/2

λ=λp, f=10 Hz

11

15

Noise equivalent power

NEP

λ=λp, f=20 Hz

11

15

fW/Hz

1/2

Output offset voltage

Vos

Dark state

±4

mV

Cut-off frequency

fc

-3 dB

32

Hz

Output voltage swing

Vo

13

V

Supply current

Icc

Dark state

0.3

mA

S8745-01, S8746-01 may be damaged by Electro Static Discharge, etc. Please see Precautions for use in the last page.