ADN2872(RevB) Просмотр технического описания (PDF) - Analog Devices
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ADN2872 Datasheet PDF : 20 Pages
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Data Sheet
ADN2872
SPECIFICATIONS
VCC = 3.0 V to 3.6 V. All specifications TMIN to TMAX, unless otherwise noted.1 Typical values as specified at 25°C.
Table 1.
Parameter
Min Typ Max Unit Conditions/Comments
LASER BIAS CURRENT (IBIAS)
Output Current, IBIAS
Compliance Voltage
IBIAS when ALS High
2
100 mA
1.2
VCC
V
0.2 mA
CCBIAS Compliance Voltage
1.2
V
MODULATION CURRENT (IMODP, IMODN)2
Output Current, IMOD
Compliance Voltage
IMOD when ALS High
Rise Time2, 3
Fall Time2, 3
5
1.5
60
60
90 mA
VCC
V
0.05 mA
104 ps
96 ps
Random Jitter2, 3
Deterministic Jitter2, 3
Pulse Width Distortion2, 3
AVERAGE POWER SET (PAVSET)
0.8 1.1 ps rms
35 ps
30 ps
20 mA < IMOD < 90 mA
20 mA < IMOD < 90 mA
Pin Capacitance
80 pF
Voltage
1.1 1.2 1.35 V
Photodiode Monitor Current (Average Current)
50
1200 µA
Resistor setpoint mode
EXTINCTION RATIO SET INPUT (ERSET)
Resistance Range
1.2
25 kΩ
Resistor setpoint mode
Voltage
1.1 1.2 1.35 V
Resistor setpoint mode
AVERAGE POWER REFERENCE VOLTAGE INPUT (PAVREF)
Voltage Range
0.12
1
V
Voltage setpoint mode (RPAV fixed at 1 kΩ)
Photodiode Monitor Current (Average Current)
120
1000 µA
Voltage setpoint mode (RPAV fixed at 1 kΩ)
EXTINCTION RATIO REFERENCE VOLTAGE INPUT (ERREF)
Voltage Range
DATA INPUTS (DATAP, DATAN)4
0.1
1
V
Voltage setpoint mode (RERSET fixed at 1 kΩ)
Input Voltage Swing (Differential)
0.4
2.4 V p-p AC-coupled
Input Impedance (Single-Ended)
50
Ω
LOGIC INPUTS (ALS)
VIH
VIL
ALARM OUTPUT (FAIL)5
2
V
0.8 V
VOFF
>1.8
V
Voltage required at FAIL for IBIAS and IMOD to
turn off when FAIL asserted
VON
<1.3
V
Voltage required at FAIL for IBIAS and IMOD to
stay on when FAIL asserted
IBMON, IMMON DIVISION RATIO
IBIAS/IBMON3
IBIAS/IBMON3
IBIAS/IBMON Stability3, 6
IMOD/IMMON
IBMON Compliance Voltage
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
Rev. B | Page 3 of 20
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