LT1004 Datasheet, PDF (6/13 Pages) Texas Instruments – MICROPOWER INTEGRATED VOLTAGE REFERENCES

LT1004-1.2, LT1004-2.5
MICROPOWER INTEGRATED VOLTAGE REFERENCES
SLVS022H – JANUARY 1989 – REVISED JULY 1999
TYPICAL CHARACTERISTICS^†
LT1004x-1.2
LT1004x-1.2
REFERENCE IMPEDANCE
NOISE VOLTAGE
vs
vs
REFERENCE CURRENT
FREQUENCY
100
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ f = 25 Hz
TA = –55°C to 125°C
ÎÎÎÎÎÎÎÎÎÎ 700
IZ = 100 µA
600 TA = 25°C
500
10
400
300
1
200
100
0.1
0.01
0.1
1
10
100
IZ – Reference Current – mA
Figure 5
TL1004x-1.2
FILTERED OUTPUT NOISE VOLTAGE
vs
CUTOFF FREQUENCY
70
ÎÎÎÎÎÎÎÎÎ ^{IZ = 100 µA}
60
TA = 25°C
ÎÎÎÎÎÎÎÎÎÎ ^{RC Low Pass}
50
100 µA
R
40
C
30
20
0
10
100
1k
10 k
100 k
f – Frequency – Hz
Figure 6
LT1004x-2.5
TRANSIENT RESPONSE
2
1.5
ÎÎÎ ^Output
1
36 kΩ
0.5
VI
VO
0
10
0
0.1
1
10
100
Cutoff Frequency – kHz
Figure 7
5
ÎÎÎ^Input
0
0
100
500
600
t – Time – µs
Figure 8
†Data _{at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.}
6
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