TLE2426 Datasheet, PDF (15/22 Pages) Texas Instruments – THE RAIL SPLITTER PRECISION VIRTUAL GROUND

TLE2426, TLE2426Y
THE “RAIL SPLITTER”
PRECISION VIRTUAL GROUND
SLOS098D – AUGUST 1991 – REVISED MAY 1998
TYPICAL CHARACTERISTICS
RIPPLE REJECTION
vs
FREQUENCY
100
90
VI = 5 V or 12 V
∆VI(PP) = 1 V
80 ^{IO = 0}
TA = 25°C
70
CNR = 1 µF
60
50
40
30
20
10
CNR = 0
0
10
100
1k
10 k
100 k
1M
f – Frequency – Hz
Figure 13
SPECTRAL NOISE VOLTAGE DENSITY
vs
FREQUENCY
400
VI = 5 V or 12 V
TA = 25°C
300
200
100
0
1
CNR = 0
CNR = 1 µF
10
100
1k
10 k
f – Frequency – Hz
Figure 14
100 k
1.5 V
4
3
2
1
0
–1
–2
–3
–4
–1.5 V
OUTPUT VOLTAGE RESPONSE
TO OUTPUT CURRENT STEP
0.1%
VI = 5 V
CL = 100 pF
TA = 25°C
0.01%
0.01%
10 mA
IO Step
0.1%
– 10 mA
0
1000
2000
3000
4000
Time – µs
Figure 15
OUTPUT VOLTAGE POWER-UP RESPONSE
3
0.1%
2.5
0.01%
Output Voltage Response
2
1.5
1
IO = 0
CL = 100 pF
TA = 25°C
0.5
0
5
Input Voltage Step
0
0
50
100
150
200
Time – µs
Figure 16
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