01/2006
AMT8650
10 Gb/s 1310/1550nm PIN-TIA
ADVANCED PRODUCT INFORMATION Rev 0.0
FEATURES
10 Gb/s differential output TIA
8.5 GHz Bandwidth
-19 dBm Typical Sensitivity
+3 dBm Optical Overload
1250-1620nm PIN Photodetector
Transimpedance gain of 10K and 600mVpp output
APPLICATIONS
SONET OC-192/SDH STM-64
10Gb/s Ethernet
High speed 5-pin package
Product Description
The ANADIGICS AMT8650 is a low cost optical
receiver capable of operation to 10Gb/s. A high
performance PIN photodiode and a low noise, high
gain transimpedance pre-amplifier (TIA) are
incorporated in a hermetic, high speed header. The
bandwidth is 8.5Ghz and dynamic range is over 22dB.
High gain of the TIA eliminates the need for a
separate post amplifier in most applications. These
devices are readily designed into receivers,
transceivers and transponders for SONET OC-
192/SDH STM-64 and 10 Gigabit Ethernet.
Figure 1: Functional Block Diagram
VOUTN
V
PD
VOUTP
R
F
P
IN
1
2 3
4
Vref
V
TIA
5
AMT8650
ADVANCED PRODUCT INFORMATION Rev 0.0
2
01/2006
ELECTRICAL CHARACTERISTICS
Table 1: Absolute Maximum Ratings
PARAMETER
MIN
MAX
UNIT
Supply Voltage
-0.5
5.5
V
Photodiode bias Voltage
2.5
10
V
Optical Input Power
-
+ 4
dBm
Storage Temperature
- 40
+ 85
oC
Stresses in excess of the absolute ratings may cause permanent damage. Functional
operation is not implied under these conditions. Exposure to absolute ratings for extended
periods of time may adversely affect reliability.
Table 2: Electrical Specifications
PARAMETER
MIN
TYP
MAX
UNIT
Wavelength 1250
-
1620
nm
Sensitivity
(1)
-
-19
-
dB
Overload -
3
-
dBm
Responsivity 1550nm
0.80
0.90
-
A/W
Responsivity 1310nm
0.75
0.85
-
A/W
Dark current
-
0.2
5
nA
Small signal transimpedance gain (differential)
-
10
-
K
Small signal 3dB bandwidth
-
8.5
-
GHz
Low frequency cutoff
-
30
-
KHz
Output return loss (differential)
(2)
-
9
-
dB
Output voltage swing (differential)
-
600
-
mV
P-P
Optical return loss
50
55
-
dB
Photodiode bias voltage
4
5
9
V
TIA supply voltage
4.7
5
5.3
V
TIA supply current
-
48
-
mA
Power consumption
-
240
-
mW
Operating temperature -40
25
85
oC
(1) 10Gb/s PRBS 2
31
-, 1550nm, ER >12dB
(2) (S
11
- S
21
+ S
22
- S
12
), 100MHz 9GHz
Figure 2: Pin location
1
2
3
4
5
Table 3: Pin description
PIN
NAME
DESCRIPTION
1
VOUTP
Non-inverted output voltage. Logical `1' with
an optical input. Output is not AC coupled.
2
V
PD
Photodiode bias: 5V
3
V
TIA
Amplifier supply voltage: 5V
4
VOUTN
Inverted output voltage: Logical `0' with an
optical input. Output is not AC coupled
5 Ground
Ground
AMT8650
ADVANCED PRODUCT INFORMATION Rev 0.0
3
01/2006
PERFORMANCE
-6
-4
-2
0
2
4
6
8
10
12
0
1
2
3
4
5
6
7
8
9
10
11
12
GHz
dB
Figure 3: Frequency response of AMT8650-T46L-EVA (-20dBm optical input)
Figure 4: Optical input power: 5dBm,
extinction ratio: 12dB. (100mV/Div, 20ps/Div)
Figure 5: Optical input power: 10dBm,
extinction ratio: 12dB. (100mV/Div, 20ps/Div)
Figure 6: Optical input power: 15dBm,
extinction ratio: 12dB. (50mV/Div, 20ps/Div)
Figure 7: Optical input power: 20dBm,
extinction ratio: 12dB. (20mV/Div, 20ps/Div)
AMT8650
ADVANCED PRODUCT INFORMATION Rev 0.0
4
01/2006
PACKAGE DIMENSIONS
(mm [Inches])
1.23 [0.0485]
5.41 [0.2132]
4.76 [0.1875]
0.38 [0.0150]
3.18 [0.1251]
3.66 [0.1440]
4.71 [0.1857]
1.32 [0.0520]
0.56 [0.0219]
R0.23 [R0.0089]
R0.12 [R0.0049]
R0.23 [R0.0089]
0.89 [0.0351]
2.54 [0.1001]
1.17 [0.0461]
4x
EVALUATION BOARD
VPD
VTIA
100nF
100nF
GND
GND
100nF
100nF
RF out (P)
RF out (N)
22uF/20V
22uF/20V
GND
GND
180nH
180nH
10nF
10nF
GND
GND
330R
10nF
GND
GND
GND
VOUTP
VOUTN
V P
D
V T
I
A
GND
ORDERING INFORMATION
Part Number
PACKAGE DESCRIPTION
AMT8650-T46L
5V High speed 5 pin package with ball lens
AMT8650-H1
5V High speed 5 pin package with SC/APC pigtail
AMT8650-T46L-EVA
5V High speed 5 pin package with ball lens mounted on evaluation board
AMT8650-H1-EVA
5V High speed 5 pin package with pigtail mounted on evaluation board
ANADIGICS, Inc.
829 Flynn Road
Camarillo, California 93012, U.S.A.
Tel: +1 (805) 445-4500
Fax: +1 (805) 445-4502
URL:
http://www.anadigics.com
E-mail:
Mktg@anadigics.com
IMPORTANT NOTICE
ANADIGICS, Inc. reserves the right to make changes to its products or discontinue any product at any time without notice. The product specifications
contained in Advanced Product Information sheets and Preliminary Data sheets are subject to change prior to a product's formal introduction.
Information in Data Sheets have been carefully checked and are assumed to be reliable; however, ANADIGICS assumes no responsibility for
inaccuracies. ANADIGICS strongly urges customers to verify that the information they are using is current before placing orders.
WARNING
ANADIGICS products are not intended for use in life support appliances, devices, or systems. Use of an ANADIGICS product in any such application
without written consent is prohibited.
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