User Manual

DS1862
XFP Laser Control and Digital Diagnostic IC
12 ____________________________________________________________________
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
DS1862 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
5.34.83.3 3.8 4.3
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
2.0
2.8
SRC_SINK_B = 1
SRC_SINK_B = 0
I
BMD
= 499.479
µ
A
SUPPLY CURRENT vs. TEMPERATURE
DS1862 toc02
TEMPERATURE (
°
C)
SUPPLY CURRENT (mA)
8560-15 10 35
3.0
3.5
4.0
4.5
5.0
5.5
6.0
-40
SRC_SINK_B = 1
SRC_SINK_B = 0
I
BMD
= 499.479
µ
A
V
CC3
= 5.5V, V
CC2
= 1.6V
I
BMD
DRIFT vs. TEMPERATURE
DS1862 toc03
TEMPERATURE (°C)
I
BMD
DRIFT (%)
8560-15 10 35
-2.5
-1.5
-2.0
-1.0
-0.5
0
0.5
1.0
-40
SRC_SINK_B = 1
SRC_SINK_B = 0
I
BMD
= 499.479µA
V
CC3
= 5.5V, V
CC2
= 1.6V
I
BMD
DRIFT vs. SUPPLY VOLTAGE
DS1862 toc04
SUPPLY VOLTAGE (V)
I
BMD
DRIFT (%)
5.23.6 4.4
-1.0
0
-0.2
0.2
-0.6
-0.8
-0.4
0.4
0.6
0.8
1.0
2.8
SRC_SINK_B = 1
SRC_SINK_B = 0
I
BMD
= 499.479µA
I
MODSET
DRIFT vs. TEMPERATURE
DS1862 toc05
TEMPERATURE (°C)
I
MODSET
DRIFT (%)
85-15 10 35 60
-2.0
-1.5
-1.0
-0.5
0
0.5
1.0
-40
I
BMD
= 499.479µAV
CC3
= 5.5V, V
CC2
= 1.6V
INTEGRAL NONLINEARITY
OF QUICK TRIPS
DS1862 toc06
CODE (0–255)
ERROR (LSB)
256128
-0.8
-0.2
0
-0.6
-0.4
0.2
0.4
0.6
0.8
0
DIFFERENTIAL NONLINEARITY
OF I
MODSET
DS1862 toc07
CODE (0–255)
ERROR (LSB)
256128
-0.20
-0.05
0
-0.15
-0.10
0.05
0.10
0.15
0.20
0
FSR = 75µA
V
CC3
= 4.2V, V
CC2
= 1.6V
INTEGRAL NONLINEARITY
OF I
MODSET
DS1862 toc08
CODE (0–255)
ERROR (LSB)
256128
-0.20
-0.05
0
-0.15
-0.10
0.05
0.10
0.15
0.20
0
FSR = 75µAV
CC3
= 4.2V, V
CC2
= 1.6V