ADN2873ACPZ-RL datasheet(4/20 Pages) AD

Part #	ADN2873ACPZ-RL

Description	3.3 V, 50 Mbps to 4.25 Gbps, Single-Loop, Laser Diode Driver

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ADN2873

Rev. 0 | Page 4 of 20

Parameter

Min

Typ

Max

Unit

Conditions/Comments

IBMON, IMMON DIVISION RATIO

IBIAS/IBMON3

76

98

112

A/A

2 mA < IBIAS < 11 mA

IBIAS/IBMON3

85

98

115

A/A

11 mA < IBIAS < 50 mA

IBIAS/IBMON3

92

100

108

A/A

50 mA < IBIAS < 100 mA

IBIAS/IBMON STABILITY3, 10

±5

%

10 mA < IBIAS < 100 mA

IMOD/IMMON

42

A/A

IBMON Compliance Voltage

0

1.3

V

SUPPLY

ICC11

31

mA

When IBIAS = IMOD = 0 mA

VCC (with Respect to GND)12

3.0

3.3

3.6

V

1 Temperature range is from −40°C to +85°C.

2 Measured into a single-ended 15 Ω load (22 Ω resistor in parallel with digital scope 50 Ω input) using a 1111111100000000 pattern at 2.5 Gbps, shown in Figure 2.

3 Guaranteed by design and characterization. Not production tested.

4 Measured into a single-ended 15 Ω load using a K28.5 pattern at 2.5 Gbps, shown in Figure 2.

5 Measured into a differential 30 Ω (43 Ω differential resistor in parallel with a digital scope of 50 Ω input) load using a 1111111100000000 pattern at 4.25 Gbps, as

shown in Figure 3.

6 Measured into a differential 30 Ω load using a K28.5 pattern at 4.25 Gbps, as shown in Figure 3.

7 Measured into a differential 30 Ω load using a K28.5 pattern at 2.7 Gbps, as shown in Figure 3.

8 When the voltage on DATAP is greater than the voltage on DATAN, the modulation current flows into the IMODP pin.

9 Guaranteed by design. Not production tested.

10 IBIAS/IBMON ratio stability is defined in SFF-8472 Revision 9 over temperature and supply variation.

11 See the ICC minimum for power calculation in the Power Consumption section.

12 All VCC pins should be shorted together.

ADN2873

IMODP

BIAS TEE

80kHz → 27GHz

VCC

TO HIGH SPEED

DIGITAL

OSCILLOSCOPE

50Ω INPUT

R

22Ω

C

L

Figure 2. High Speed Electrical Test Single-Ended Output Circuit

ADN2873

IMODN

BIAS TEE

80kHz → 27GHz

VCC

TO HIGH SPEED

DIGITAL

OSCILLOSCOPE

50Ω DIFFERENTIAL INPUT

R

43Ω

C

L

VCC

IMODP

L

C

BIAS TEE

80kHz → 27GHz

Figure 3. High Speed Electrical Test Differential Output Circuit

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ADN2873ACPZ-RL Datasheet(PDF) 4 Page - Analog Devices

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