TYPICAL PERFORMANCE CURVES
At TA = +25°C, VS = +15V, unless otherwise noted.
CURRENT SOURCE
TEMPERATURE DRIFT DISTRIBUTION
CURRENT SOURCE
TYPICAL DRIFT vs TEMPERATURE
100.1
600
500
400
300
200
501
100
99.9
99.8
454
Distribution of three
production lots —
1284 Current Sources.
Drift specified by
85°C
“box method”
(See text)
99.7
117
86
99.6
99.5
100
0
66
30
15
6
5
2
0
1
1
–50
–25
0
25
50
75
100
125
0
5
10 15 20 25 30 35 40 45 50 55 60 65
Temperature Drift (ppm/°C)
Temperature (°C)
CURRENT SOURCE
CURRENT SOURCE
OUTPUT CURRENT vs VOLTAGE
OUTPUT CURRENT vs VOLTAGE
101
100.8
100.6
100.4
100.2
100
100.5
100.4
100.3
100.2
100.1
100
25°C
99.8
99.9
99.6
99.8
–55°C
125°C
99.4
99.7
99.2
99
99.6
99.5
0
5
10
15
20
25
30
35
40
0
1
2
3
4
5
Voltage (V)
Voltage (V)
CURRENT SOURCE
REVERSE CURRENT vs REVERSE VOLTAGE
CURRENT SOURCE
CURRENT NOISE (0.1Hz to 10Hz)
1000
900
800
700
600
500
400
300
200
12kΩ
7V
Reverse Voltage
Circuit Model
5kΩ
Safe Reverse Current
Safe Reverse Voltage
100
0
–10
0
–2
–4
–6
–8
–12
Time (500ms/div)
Reverse Voltage (V)
®
3
REF200