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APD Photoreceivers - Voxtel

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Packaged <strong>APD</strong>s<br />

32<br />

Siletz<br />

<strong>APD</strong> <strong>Photoreceivers</strong><br />

33<br />

Siletz VFP1-NCAA / NKAB<br />

Parameter Min Typical Max Units<br />

Spectral Range, λ 950 1000–1600 1750 nm<br />

Active Diameter 200 μm<br />

<strong>APD</strong> Operating Gain, M 1 10 20<br />

200µm <strong>APD</strong> in hermetic TO-46 can<br />

200µm <strong>APD</strong> in hermetic<br />

TO-8 can with 3-stage TEC<br />

<strong>APD</strong> <strong>Photoreceivers</strong><br />

<strong>Voxtel</strong>’s line of <strong>APD</strong> photoreceivers achieve industry-leading sensitivity with bandwidth ranging from the MHz<br />

to GHz scales. These receivers are hermetically sealed in TO-8 and TO-46 packages, and integrate a <strong>Voxtel</strong> <strong>APD</strong><br />

with a transimpedance amplifier (TIA) to provide wideband, low-noise preamplification of signal current from<br />

the <strong>APD</strong>. The <strong>APD</strong> and TIA are integrated on a ceramic submount, lowering parasitic capacitance and thereby<br />

maximizing bandwidth and minimizing noise.<br />

The receivers integrate a calibrated temperature sensor, capacitive decoupling, separate package and circuit<br />

grounding, and include differential output to allow users easy integration into their system electronics.<br />

<strong>Photoreceivers</strong> in TO-8 packages also include thermoelectric cooling to stabilize the <strong>APD</strong> gain over the range<br />

of application environments.<br />

3<br />

2<br />

Responsivity @ M=1<br />

Excess Noise Factor, F(M,k)<br />

.66<br />

.91<br />

.73<br />

1.01<br />

2.0<br />

2.9<br />

.78<br />

1.04<br />

A / W<br />

λ=1064nm<br />

λ=1550nm<br />

M=10<br />

M=40<br />

Typical <strong>Voxtel</strong> <strong>Photoreceivers</strong><br />

3<br />

3<br />

Noise Spectral Density @ M=10 3.92 pA / Hz 1/2<br />

Dark Current @ M=1 i 90 165 200 nA<br />

Total Capacitance ii 1.84 pF<br />

Bandwidth 300 350 400 MHz<br />

Breakdown Voltage, V BR<br />

iii<br />

70 74 80 V<br />

∆V BR /∆T 29 mV / K<br />

Minimum Internal Temperature -40 °C<br />

TE cooler rating iv 1.9 / 1.2 V / A<br />

Temperature Sensing Diode<br />

Voltage and ΔV/K v 0.48<br />

0.50<br />

-2.18mV / K<br />

0.51 V<br />

Maximum Instantaneous<br />

5 mW<br />

Input Power vi<br />

Typical Block Diagram<br />

i<br />

Unity referenced from M=10, T=298K<br />

+<strong>APD</strong><br />

TEC+<br />

ii<br />

M>3<br />

iii<br />

T=298K; I dark >0.1mA<br />

iv For VFC1-xKAB devices, package at 298K<br />

v<br />

Sourcing 10μA, T=298K<br />

vi<br />

10ns, 1064nm signal @ a 20Hz PRF<br />

with an <strong>APD</strong> multiplication gain of M=10<br />

N/C<br />

N/C<br />

TSense<br />

TSense+ (B/C)<br />

TSense– (E)<br />

V CC<br />

TEC–<br />

Gnd<br />

Out+<br />

Out–<br />

Gnd<br />

<strong>Voxtel</strong> Catalog, rev 03, 06/2012 ©<br />

Packaged <strong>APD</strong>s<br />

<strong>Voxtel</strong> makes no warranty or representation regarding its products’ specific application suitability and may make changes to the products described without notice.<br />

Deschutes BSI<br />

<strong>Voxtel</strong> Catalog, rev 03, 06/2012 ©<br />

Deschutes Siletz BSI<br />

<strong>Voxtel</strong> makes no warranty or representation regarding its products’ specific application suitability and may make changes to the products described without notice.<br />

Packaged <strong>APD</strong>s

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