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iC212

HIGHSPEED PHOTORECEIVER

Rev A2, Page 2/15

DESCRIPTION

The iC-Haus Highspeed Photoreceiver iC212 has

been developed for optical high speed measurement.

With its bandwidth ranging from DC up to 1.4 GHz

it detects photo signals from constant light to high

speed with rise times down to 280 ps. The iC212

Highspeed Photoreceiver also features offset adjust-

ment to compensate DC levels of the input signal.

The photodiode used offers a spectral range from

320 to 1000 nm with an active area diameter of about

Ø 0.4 mm, which is increased by an Ø 1.5 mm ball

lens, resulting in an effective usable area of typical

0.75 mm². The Highspeed Photoreceiver is able to

detect optical power levels in the sub mW range at

GHz speed.

The iC212 Highspeed Photoreceiver comes with M6

mounting holes for integration in optical bench sys-

tems and an optional fiber-optic input adapter for op-

tical fiber coupling.

ABSOLUTE MAXIMUM RATINGS

Beyond these values damage may occur; device operation is not guaranteed.

Item

Symbol

Parameter

Conditions

Unit

No.

Min.

Max.

G001 Pmax

Optical Input Power

10

mW

G002 Vs

Power Supply Voltage

±20

V

ELECTRICAL CHARACTERISTICS

Test Conditions: Vs = ±15 V, Ta = 25 °C, System Impedace 50 Ω

Item

Symbol

Parameter

Conditions

Unit

No.

Min.

Typ.

Max.

Gain

101

A

Amplifier Transimpedance

Conversion Gain

50 Ω load

3.125

V/mA

λ

= 760 nm

1.625

V/mW

Frequency Response

201

fmax

Upper Cut-Off Frequency

-3 dB

1.4

Ghz

202

∆

A

Gain Flatness

±1

dB

203

tr

Rise Time

10 to 90%

280

ps

204

tpd

Propagation Delay

optical in => electrical out, 50% to 50%

750

ps

Detector (Si PIN photodiode)

301

d

Active Area Diameter

ball lens Ø 1.5 mm

0.4

mm

302

Aeff

Effective Active Area

ball lens Ø 1.5 mm, note tolerances from Fig. 3

0.75

mm²

303

λ

Spectral Range

320

1000

nm

304

Pmax

Max. Optical Input Power

average

10

mW

linear amplification @ 760 nm

615

µW

305

NEP

Noise equivalent power

including amplifier noise, at λ=760nm and f =

1 GHz; (for frequency dependence see Fig. ??)

115

pW/

√

Hz

Output

401

Rout

Output Impedance

50

Ω

402

Vout

Output Voltage Swing

50 Ω load, for linear amplification

-0.3

1.0

V

403

Vos

DC offset cancellation

-1.25

0.15

V

404

Pos

equivalent optical power

-92

750

µW

405

twu

Warm-Up Time

stable offset voltage

30

min

Power Supply

501

Vs

Supply Voltage

±15

V

502

Is

Supply Current

±150

mA