Datasheet

LM199/LM399
LM199A/LM399A
4
LM199399fb
Zener Noise Voltage Response Time Limiting Surge Current
TYPICAL PERFOR A CE CHARACTERISTICS
UW
FREQUENCY (Hz)
10
50
100
150
200
100 1k 10k 100k
LM199 G07
NOISE (nV/√Hz)
T
J
= 25°C
STABILIZED
(T
J
≈ 90°C)
TIME (µs)
0
VOLTAGE SWING (V)
2
4
6
8
400
LM199 G08
0
10
1
3
5
7
20
0
100
200
300
T
J
= 25°C
OUTPUT
INPUT
STABILIZED
(T
J
≈ 90°C)
INPUT
OUTPUT
7.5k
MINIMUM SUPPLY VOLTAGE (V)
0
MAXIMUM SURGE LIMITING RESISTOR (Ω)
400
600
40
LM199 G09
200
0
10
20
30
800
25°C (46mA)
5°C (60mA)
–15°C (71mA)
–35°C (87mA)
–55°C (105mA)
300
500
100
700
HEATER MUST BE BYPASSED WITH A 2µF OR LARGER
TANTALUM CAPACITOR IF RESISTORS ARE USED
Long-Term Reference
Performance, 44 Units Tested
Low Frequency Noise Voltage
MONTHS
2
0
DRIFT (ppm)
2
4
6
8
10
12
46810
LM199 G10
12
3 SIGMA
MEAN
TIME (SECONDS)
0
NOISE(10µV/DIV)
200
LM199 G11
50
100
150
250