Typical operating characteristics (continued) – Rainbow Electronics MAX15031 User Manual
Page 6
MAX15031
80V, 300mW Boost Converter and Current
Monitor for APD Bias Applications
6
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
PWR
= V
IN
= 3.3V, V
OUT
= 70V, circuit of Figure 3 (Figure 4 for V
IN
> 5.5V), unless otherwise noted.)
BIAS CURRENT
vs. APD CURRENT
MAX15031 toc17
APD CURRENT (mA)
BIAS CURRENT (mA)
1
0.1
0.01
0.001
0.1
1
10
0.01
0.0001
10
V
BIAS
= 70V
BIAS CURRENT
vs. TEMPERATURE
MAX15031 toc18
TEMPERATURE (
°C)
BIAS CURRENT (mA)
110
95
80
65
50
35
20
5
-10
-25
0.1
1
10
0.01
-40
125
I
APD
= 2mA
I
APD
= 500nA
GAIN ERROR
vs. APD CURRENT
MAX15031 toc19
I
APD
(
µA)
GAIN ERROR (%)
1000
100
10
1
-4
-3
-2
-1
0
1
2
3
4
5
-5
0.1
10,000
V
BIAS
= 70V
GAIN ERROR
vs. TEMPERATURE
MAX15031 toc20
TEMPERATURE (
°C)
GAIN ERROR (%)
110
95
-25 -10 5
35 50 65
20
80
-2.5
-2.0
-1.5
-1.0
-0.5
0
0.5
1.0
-3.0
-40
125
V
BIAS
= 70V
I
APD
= 500nA
I
APD
= 50
µA
I
APD
= 5
µA
I
APD
= 2mA
I
APD
= 500
µA
GAIN ERROR
vs. BIAS VOLTAGE
MAX15031 toc21
BIAS VOLTAGE (V)
GAIN ERROR (%)
70
60
20
30
40
50
-0.60
-0.40
-0.20
0
0.20
0.40
0.60
0.80
-0.80
10
80
I
APD
= 500nA
I
APD
= 50
µA
I
APD
= 5
µA
I
APD
= 2mA
I
APD
= 500
µA
APD TRANSIENT RESPONSE
MAX15031 toc22
20
µs/div
V
APD
AC-COUPLED
70V
2V/div
I
APD
2.5mA/div
I
MOUT
0.25mA/div
0mA
0mA
STARTUP DELAY
MAX15031 toc23
200
µs/div
V
BIAS
20V/div
I
MOUT
20nA/div
3V
0nA
I
APD
= 500nA