ADN2870 查看數據表（PDF） - Analog Devices

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ADN2870

3.3 V Dual-Loop, 50 Mbps to 3.3 Gbps Laser Diode Driver

Analog Devices 

ADN2870

Parameter

IBMON, IMMON DIVISION RATIO

IBIAS/IBMON3

IBIAS/IBMON3

IBIAS/IBMON STABILITY3, 6

IMOD/IMMON

IBMON Compliance Voltage

SUPPLY

ICC7

VCC (w.r.t. GND)8

Min Typ Max Unit Conditions/Comments

85

100 115 A/A 11 mA < IBIAS < 50 mA

92

100 108 A/A 50 mA < IBIAS < 100 mA

±5

%

10 mA < IBIAS < 100 mA

50

A/A

0

1.3 V

30

mA When IBIAS = IMOD = 0

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.

VCC

VCC

ADN2870 R

22Ω

IMODP

L

C

BIAS TEE

80kHz → 27GHz

TO HIGH SPEED

DIGITAL

OSCILLOSCOPE

50Ω INPUT

Figure 2. High Speed Electrical Test Output Circuit

Rev. 0 | Page 4 of 20

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