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ADN2870 Datasheet(PDF) 4 Page - Analog Devices

Part No. ADN2870
Description  3.3 V Dual-Loop, 50 Mbps to 3.3 Gbps Laser Diode Driver
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADN2870 Datasheet(HTML) 4 Page - Analog Devices

 
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ADN2870
Rev. 0 | Page 4 of 20
Parameter
Min
Typ
Max
Unit
Conditions/Comments
IBMON, IMMON DIVISION RATIO
IBIAS/IBMON3
85
100
115
A/A
11 mA < IBIAS < 50 mA
IBIAS/IBMON3
92
100
108
A/A
50 mA < IBIAS < 100 mA
IBIAS/IBMON STABILITY3, 6
±5
%
10 mA < IBIAS < 100 mA
IMOD/IMMON
50
A/A
IBMON Compliance Voltage
0
1.3
V
SUPPLY
ICC7
30
mA
When IBIAS = IMOD = 0
VCC (w.r.t. GND)8
3.0
3.3
3.6
V
1 Temperature range: –40°C to +85°C.
2 Measured into a 15 Ω load (22 Ω resistor in parallel with digital scope 50 Ω input) using a 11110000 pattern at 2.5 Gbps, shown in Figure 2.
3 Guaranteed by design and characterization. Not production tested.
4 When the voltage on DATAP is greater than the voltage on DATAN, the modulation current flows in the IMODP pin.
5 Guaranteed by design. Not production tested.
6 IBIAS/IBMON ratio stability is defined in SFF-8472 revision 9 over temperature and supply variation.
7 ICC min for power calculation in the Power Consumption section.
8 All VCC pins should be shorted together.
ADN2870
IMODP
BIAS TEE
80kHz
→ 27GHz
VCC
VCC
TO HIGH SPEED
DIGITAL
OSCILLOSCOPE
50
Ω INPUT
R
22
C
L
Figure 2. High Speed Electrical Test Output Circuit


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