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AD500-9-400M-TO5 Datasheet Preview

AD500-9-400M-TO5 Datasheet

APD Hybrid

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AD500-9-400M-TO5 pdf
First Sensor APD Hybrid Series Data Sheet
Part Description AD500-9-400M-TO5
US Order # 05-051-01, # 05-051-02
International Order # 50049001, # 50049002
2.2
Ø6.60 113°
VIEWING
Ø8.3
ANGLE
Ø 0.46
5 PL
PIN 5
CASE/ GND
Ø9.2
PIN 1
Vout+
PIN 2
VCC
1.00 SQ
4.2
±1
7.6 MIN
5 PL
ACTIVE AREA: 0.196 mm2
(500 µm DIAMETER)
PIN 4
Vout-
Ø5.08
PIN CIRCLE
PIN 3
+VBIAS
BACKSIDE VIEW
CHIP DIMENSIONS
FEATURES
• ∅ 0.500 mm active area
Low noise
High gain
Long term stability
DESCRIPTION
The AD500-9-400M-TO5 is an Avalanche Photodiode Amplifier
Hybrid containing a 0.196 mm2 active area APD chip integrated
with an internal transimpedance amplifier. Hermetically
packaged in a TO-5 with a borosilicate glass window cap.
APPLICATIONS
Lidar
Analytical instruments
Medical equipment
SC
ABSOLUTE MAXIMUM RATING
SYMBOL PARAMETER
MIN
TSTG
TOP
TSOLDERING
P
Storage Temp
Operating Temp
Soldering Temp
Power Dissipation
-55
0
-
-
Vcc Single Supply Voltage +3.0
Icc Supply Current
-
SCHEMATIC
VCC (+5V)
PIN 2
C1
OUT+
PIN 1
AD500-9
C2
PIN 3
+V BIAS
OUT-
PIN 5 PIN 4
CASE/GND
MAX
+125
+60
+240
360
+5.5
63
UNITS
°C
°C
°C
mW
V
mA
SPECTRAL RESPONSE at M = 100
70
60
50
40
30
20
10
0
400
500
600
700
800
900
1000
1100
WAVELENGTH (nm)
ELECTRO-OPTICAL CHARACTERISTICS @ 23° C (VCC = single supply +3.3V, RL = 100W unless otherwise specified)
SYMBOL CHARACTERISTIC
TEST CONDITIONS
MIN TYP MAX UNITS
ƒ-3dB
Frequency Response
S Sensitivity*
-3dB @ 905 nm
λ = 905 nm; M = 100
--- 400 --- MHz
--- 145 --- mV/µW
Icc Supply Current
Dark state
* Sensitivity = APD responsivity (0.58 A/W X 100 gain) x TIA gain (2.5K)
--- 34 63 mA
Use US order number 05-051-01, or International order number 50049001 for breakdown voltage range of 160-200 Volts.
Use US order number 05-051-02, or International order number 50049002 for breakdown voltage range of 200-240 Volts.
These devices are sensitive to electrostatic discharge. Please use ESD precautions when handling.
Disclaimer: Due to our policy of continued development, specifications are subject to change without notice.
11/6/2013



First Sensor
First Sensor

AD500-9-400M-TO5 Datasheet Preview

AD500-9-400M-TO5 Datasheet

APD Hybrid

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AD500-9-400M-TO5 pdf
AVALANCHE PHOTODIODE DATA @ 23 °C
SYMBOL
CHARACTERISTIC
TEST CONDITIONS
MIN TYP MAX UNITS
ID Dark Current
C Capacitance
M = 100 (see note 2)
M = 100 (see note 2)
--- 0.8 5.0 nA
--- 1.2 --- pF
VBR Breakdown Voltage (see note 1) ID = 2 µA
Temperature Coefficient of VBR
Responsivity
M = 100; = 0 V; λ = 905 nm
160 --- 240 V
1.25
---
1.55
V/K
52 58 60 A/W
∆ƒ3dB
Bandwidth
-3dB
--- 0.5 --- GHz
tr Rise Time
M = 100
---
0.55
--- ns
Optimum Gain
50 60 ---
“Excess Noise” factor
M = 100
--- 2.5 ---
“Excess Noise” index
M = 100
--- 0.2 ---
Noise Current
M = 100
--- 1.0 --- pA/Hz1/2
Max Gain
200 --- ---
NEP
Noise Equivalent Power
M = 100; λ = 905 nm
--- 2.0 X 10-14 --- W/Hz1/2
Note 1: The following different breakdown voltage ranges are available: (160 – 200 V), (200 – 240 V).
Note 2: Measurement conditions: Setup of photo current 1 nA at M = 1 and irradiated by a 880 nm, 80 nm bandwidth LED. Increase the photo
current up to 100 nA, (M = 100) by internal multiplication due to an increasing bias voltage.
TRANSIMPEDANCE AMPLIFIER DATA @ 25 °C
(Vcc = +3.0 V to 5.5 V, TA = 0°C to 70°C, 100load between OUT+ and OUT-. Typical values are at TA = 25°C, Vcc = +3.3 V)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
Supply Voltage
3 5 5.5 V
Supply Current
--- 34 63 mA
Transimpedance
Output impedance
Maximum Differential Output Voltage
Differential, measured with 40 µA p-p signal
Single ended per side
Input = 2 mA p-p with 100 differential termination
2.10
2.75
3.40
k
48 50 52
220 380 575 mV p-p
AC Input Overload
2 --- --- mA p-p
DC Input Overload
1 --- --- mA
Input Referred RMS Noise
TO-5 package, see note 4
--- 490 668 nA
Input Referred Noise Density
Small signal bandwidth
See note 4
Source capacitance = 0.85 pF, see note 3
---
1.525
11
2.00
--- pA/Hz1/2
--- GHz
Low Frequency Cutoff
-3 dB, input < 20 µA DC
--- 30 --- kHz
Transimpedance Linear Range
Peak to peak 0.95 < linearity < 1.05
40 --- --- µA p-p
Power Supply Rejection Ratio
(PSRR)
Output referred, f < 2 MHz, PSSR = -20 Log (Vout /
Vcc)
---
50 --- dB
Note 3: Source capacitance for AD500-9-400M-TO5 is the capacitance of APD.
Note 4: Input referred noise is calculated as RMS output noise/ (gain at f = 10 Mhz). Noise density is (input referred noise)/bandwidth.
TRANSFER CHARACTERISTICS
The circuit used is an avalanche photodiode directly coupled to a high speed data handling transimpedance amplifier. The output of the APD
(light generated current) is applied to the input of the amplifier. The amplifier output is in the form of a differential voltage pulsed signal.
The APD responsivity curve is provided in Fig. 2. The term Amps/Watt involves the area of the APD and can be expressed as
Amps/mm2/Watts/mm2, where the numerator applies to the current generated divided by the area of the detector, the denominator refers to the
power of the radiant energy present per unit area. As an example assume a radiant input of 1 microwatt at 905 nm. The APD’s corresponding
responsivity is 0.58 A/W.
If energy in = 1 µW, then the current from the APD = (0.58 A/W) x (1x10-6W) = 0.58 µA. We can then factor in the typical gain of the APD
of 100, making the input current to the amplifier 58 µA. From Fig. 5 we can see the amplifier output will be approximately 100 mV p-p.
APPLICATION NOTES
The AD500-9-400M-TO5 is a high speed optical data receiver. It incorporates an internal transimpedance amplifier with an avalanche
photodiode.
This detector requires +3.5 V to +5.0 V voltage supply for the amplifier and a high voltage supply (100-240 V) for the APD. The internal APD
follows the gain curve published for the AD500-9-TO52-S1 avalanche photodiode. The transimpedance amplifier provides differential output
signals in the range of 200 millivolts differential.
In order to achieve highest gain, the avalanche photodiode needs a positive bias voltage (Fig. 1). However, a current limiting resistor must be
placed in series with the photodiode bias voltage to limit the current into the transimpedance amplifier. Failure to limit this current may
result in permanent failure of the device. The suggested initial value for this limiting resistor is 390 KOhm.
When using this receiver, good high frequency placement and routing techniques should be followed in order to achieve maximum frequency
response. This includes the use of bypass capacitors, short leads and careful attention to impedance matching. The large gain bandwidth
values of this device also demand that good shielding practices be used to avoid parasitic oscillations and reduce output noise.
11/6/2013


Part Number AD500-9-400M-TO5
Description APD Hybrid
Maker First Sensor
Total Page 3 Pages
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