Datasheet P2680-02, P2680-03, P2038-03, P3207-05, P2038-02 Datasheet (HAMAMATSU)

INFRARED DETECTOR

PbSe photoconductive detector

P791/P2038/P2680 series, P3207-05

Detection capability up 5 µm range (TE-cooled type)

Hamamatsu provides various types of PbSe photoconductive cells including room temperature operation types and thermoelectrically cooled
types. Cooled type PbSe photoconductive cells offer higher sensitivity and improved S/N, and are widely used in precision photometry such as in
analytical instruments.

Features

l

High-speed response

l

Room temperature operation
Compared to other types of detectors used in the same
wavelength range, PbSe cells have higher response
speed and can also operate at room temperature,
making them useful in a wide range of applications
such as gas analyzers, etc.

l

Lower temperature detection limit: 50 ˚C approx.

■ Specification / Absolute maximum ratings

Type No.

P791-11 2 × 2
P791-13
P3207-05
P2038-02 2 × 2
P2038-03
P2680-02 2 × 2
P2680-03

Dimensional

outline

➀

➁

➂

➃

Package Cooling

TO-5 Non-cooled

One-stage

TO-8

TE-cooled
Two-stage
TE-cooled

Active

area

(mm)

3 × 3
2 × 2

3 × 3

3 × 3

Applications

l

Radiation thermometer

l

Flame detector

l

Gas analyzer

l

Film thickness gauge

Accessories (Optional)

l

Heatsink for one-stage TE-cooled type A3179

l

Heatsink for two-stage TE-cooled type A3179-01

l

Temperature controller for TE-cooled type C1103-04

l

Preamplifier for PbS/PbSe photoconductive detector C3757-02

l

Infrared detector module with preamp Non-cooled type

Absolute maximum ratings

Thermistor

resistance

(kW)

Thermistor

power

dissipation

TE-cooler

current

dissipation

(mW) (A) (V) (°C) (°C)

-- -

1.5

90.2

1.0

Cooled type P4639

Supply

voltage

Operating

temperature

Topr

Storage

temperature

Tstg

100 -30 to +50 -55 to +60

P4245

■ Electrical and optical characteristics (Typ. unless otherwise noted)

Measurement

condition

Element

Type No.

temperature

T

(°C) (µm) (µm)
P791-11 7 × 10 1 × 10
P791-13
P3207-05 *



P2038-02 2.2 × 10!3 × 10
P2038-03
P2680-02 2.7 × 10!4 × 10
P2680-03

25

-10 4.1 5.1

-20 4.2 5.2

*1: Half width 400 nm
*2: Chopping frequency: 600 Hz, load resistance: nearly equal to detector element dark resistance

Peak

sensitivity

wavelength

lp

4.0

4.3

Cut-off

wavelength

lc

4.8

Photo sensitivity

S *

l=lp

Vs=15 V

Min.

(V/W)

3 × 10 5 × 10
7 × 10

Typ.

(V/W)

1 × 10

1 × 10!1 × 10

1.2 × 10!2 × 10

!

!

!

!

!

!

*

D

(500, 600, 1)

Min.

(cm·Hz

5 × 10

1/2

/W)

%

Typ.

(cm·Hz

1 × 10

1/2

/W) (cm· Hz

&

- - 8 × 10

1 × 10

2 × 10

&

&

3 × 10

4 × 10

&

&

(lp, 600, 1)

1 × 10

3 × 10

4 × 10

D

tr

Rise time

*

0 to 63 %

/W)

'

&

'

'

Max.

(µs)

3 0.3 to 1.5

5

1/2

Dark

resistance

Rd

(MW)

1.7 to 7.0

1.8 to 8.0

1

PbSe photoconductive detector

■ Spectral response

P791/P2038/P2680 series P3207-05

100

P791/P2038/P2680 series, P3207-05

(Typ.)

100

(Typ.)

80

60

-10 ˚C

40

RELATIVE VALUE (%)

20

0

1234567

25 ˚C

WAVELENGTH (µm)

■ S/N vs. supply voltage

600

LIGHT SOURCE: BLACK BODY 500 K
INCIDENT ENERGY: 16.7 µW/cm
CHOPPING FREQUENCY: 600 Hz

500

FREQUENCY BANDWIDTH: 60 Hz
Supply voltage is the
value which contains

400

load resistance

300

SIGNAL (µV)

200

100

S

N

-20 ˚C

(Typ. Ta=25 ˚C)

2

80

60

40

RELATIVE VALUE (%)

20

0

1234567

KIRDB0280EA KIRDB0281EA

WAVELENGTH (µm)

■ S/N vs. chopping frequency

3

18

15

12

9

NOISE (µV)

6

3

10

LIGHT SOURCE: BLACK BODY 500 K
INCIDENT ENERGY: 16.7 µW/cm
SUPPLY VOLTAGE: 15 V

2

10

RELATIVE S/N

(Typ. Ta=25 ˚C)

2

S/N

S

N

1

0

0

10 20 30 40 50 60

SUPPLY VOLTAGE (V)

0

10070 80 90

KIRDB0052EC

10

2

10

CHOPPING FREQUENCY (Hz)

3

10

4

10

KIRDB0053EB

Increasing the chopping frequency re­duces the 1/f noise and results in an S/N
improvement. The S/N can also be im­proved by narrowing the noise bandwidth
using a lock-in amplifier.

■ Photo sensitivity temperature characteristic ■ Dark resistance, rise time temperature characteristics

3

10

2

10

LIGHT SOURCE: BLACK BODY 500 K
SUPPLY VOLTAGE: 15 V
INCIDENT ENERGY: 16.7 µW/cm
CHOPPING FREQUENCY: 600 Hz

RELATIVE SENSITIVITY

1

10

-20

-100 102030405060

ELEMENT TEMPERATURE (˚C)

Cooling the device enhances its sensi­tivity, but the sensitivity also depends
on the load resistance in the circuit.

(Typ.)

2

KIRDB0054EB

3

10

2

10

RISE TIME

RELATIVE VALUE

1

10

ELEMENT TEMPERATURE (˚C)

DARK RESISTANCE

02010 40 5030 60-20 -10

(Typ.)

KIRDB0055EB

2

PbSe photoconductive detector

P791/P2038/P2680 series, P3207-05

■ Photo sensitivity linearity

2

10

1

10

0

10

-1

10

RELATIVE SENSITIVITY

-2

10

-3

10

-7

10

(Typ. Ta=25 ˚C, FULLY ILLUMINATED)

DEPENDENT ON NEP

-6

-5

-4

10

10

10

-3

10

INCIDENT ENERGY (W/cm2)

By making the incident light spot smaller
than the active area, the upper limit of
the linearity becomes lower.

-2

10

KIRDB0056EA

■ Current vs. voltage characteristics of the TE-cooler

(Typ. Ta=25 ˚C, Thermal resistance of heatsink=3 ˚C/W)

1.6

1.4

1.2

ONE-STAGE
TE-COOLED

1.0

0.8

0.6

CURRENT (A)

0.4

0.2

0

0 0.80.60.40.2 1.21.0

VOLTAGE (V)

TWO-STAGE
TE-COOLED

KIRDB0115EB

■ Cooling characteristics of TE-cooler

(Typ. Ta=25 ˚C, Thermal resistance of heatsink=3 ˚C/W)

40

C)

˚

20

0

-20

TWO-STAGE

-40

ELEMENT TEMPERATURE (

TE-COOLED

-60
0 0.4 0.8 1.2 1.60.2 0.6 1.0 1.4

ONE-STAGE
TE-COOLED

CURRENT (A)

■ Thermistor temperature characteristic

6

10

5

10

4

10

RESISTANCE (Ω)

3

10

-40 -20 0 20-30 -10 10 30

ELEMENT TEMPERATURE (˚C)

(Typ.)

KIRDB0185EA

KIRDB0116EA

■ Connection example (P2680-03)

P2680-03

+

A3179-01

DETECTOR AND

C4696

CHOPPER

HEATSINK

BNC CONNECTOR CABLE
(SOLD SEPARATELY)

2-CONDUCTOR
SHIELDED CABLE

C3757-02

C1103-04

CABLE (SUPPLIED WITH C1103-04)

Connect C1103-04 and C3871
ground terminals together.

CABLE (SUPPLIED WITH C3757-02)

POWER SUPPLY FOR PREAMP

C3871

AMP

LOCK-IN AMP or
SPECTRUM ANALYZER

TEMPERATURE
CONTROLLER

SIGNAL

PROCESSING

CIRCUIT

KIRDC0045EA

3

PbSe photoconductive detector

■■

■

Dimensional outlines (unit: mm)

■■

P791/P2038/P2680 series, P3207-05

➀ P791-11/-13 ➁ P3207-05

PHOTOSENSITIVE
SURFACE

0.45
LEAD

5.1 ± 0.2

1.5 MAX.

9.1 ± 0.3

8.1 ± 0.1

WINDOW

5.5 ± 0.1

15.3 ± 0.2

14 ± 0.2

WINDOW

10 ± 0.2

4.2 ± 0.2

2.1 ± 0.2

18 MIN.

0.4 MAX.

DETECTOR
DETECTOR
GND

6.4 ± 0.212 MIN.

9.1 ± 0.3

8.1 ± 0.1
WINDOW

0.45
LEAD

5.5 ± 0.1

2.1 ± 0.20.4 MAX.

3.0 ± 0.2

18 MIN.

DETECTOR
DETECTOR
GND

4.2 ± 0.2

FILTER

PHOTOSENSITIVE
SURFACE

5.1 ± 0.2

1.5 MAX.

KIRDA0056EC KIRDA0118EA

➃ P2680-02/-03➂ P2038-02/-03

15.3 ± 0.2

14 ± 0.2

WINDOW
10 ± 0.2

10 ± 0.212 MIN.

PHOTOSENSITIVE
SURFACE

0.45
LEAD

10.2 ± 0.2

5.1 ± 0.2

5.1 ± 0.2

HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: [phone], Fax: [phone], http://www.hamamatsu.com

U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: [phone], Fax: [phone]
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: [phone], Fax: [phone]
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: [phone], Fax: [phone]
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: [phone], Fax: [phone]
North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: [phone], Fax: [phone]
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: [phone], Fax: [phone]

4.3 ± 0.2

DETECTOR
DETECTOR
TE-COOLER (-)
TE-COOLER (+)
THERMISTOR

Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2002 Hamamatsu Photonics K.K.

PHOTOSENSITIVE
SURFACE

0.45
LEAD

5.1 ± 0.2

5.1 ± 0.2

6.7 ± 0.2

10.2 ± 0.2

DETECTOR
DETECTOR
TE-COOLER (-)
TE-COOLER (+)
THERMISTOR

4

KIRDA0125EAKIRDA0128EA

Cat. No. KIRDA1020E04

Dec. 2002 DN