Datasheet

ADN2872
Rev. 0 | Page 3 of 20
SPECIFICATIONS
V
CC
= 3.0 V to 3.6 V. All specifications T
MIN
to T
MAX
, 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, I
BIAS
2 100 mA
Compliance Voltage 1.2 V
CC
V
IBIAS when ALS High 0.2 mA
CCBIAS Compliance Voltage 1.2 V
MODULATION CURRENT (IMODP, IMODN)
2
Output Current, I
MOD
5 90 mA
Compliance Voltage 1.5 V
CC
V
I
MOD
when ALS High 0.05 mA
Rise Time
2, 3
60 104 ps
Fall Time
2, 3
60 96 ps
Random Jitter
2, 3
0.8 1.1 ps rms
Deterministic Jitter
2, 3
35 ps 20 mA < I
MOD
< 90 mA
Pulse Width Distortion
2, 3
30 ps 20 mA < I
MOD
< 90 mA
AVERAGE POWER SET (PAVSET)
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 0.1 1 V Voltage setpoint mode (R
ERSET
fixed at 1 kΩ)
DATA INPUTS (DATAP, DATAN)
4
Input Voltage Swing (Differential) 0.4 2.4 V p-p AC-coupled
Input Impedance (Single-Ended) 50 Ω
LOGIC INPUTS (ALS)
V
IH
2 V
V
IL
0.8 V
ALARM OUTPUT (FAIL)
5
V
OFF
>1.8 V
Voltage required at FAIL for I
BIAS
and I
MOD
to
turn off when FAIL asserted
V
ON
<1.3 V
Voltage required at FAIL for I
BIAS
and I
MOD
to
stay on when FAIL asserted
IBMON, IMMON DIVISION RATIO
I
BIAS
/I
BMON
3
85 100 115 A/A 11 mA < I
BIAS
< 50 mA
I
BIAS
/I
BMON
3
92 100 108 A/A 50 mA < I
BIAS
< 100 mA
I
BIAS
/I
BMON
Stability
3, 6
±5 % 10 mA < I
BIAS
< 100 mA
I
MOD
/I
MMON
50 A/A
I
BMON
Compliance Voltage 0 1.3 V