TLE2425 Datasheet, PDF (10/16 Pages) Texas Instruments – PRECISION VIRTUAL GROUND

TLE2425
PRECISION VIRTUAL GROUND
SLOS065D – MARCH 1991 – REVISED APRIL 2002
TYPICAL CHARACTERISTICS
1.5 V
OUTPUT VOLTAGE RESPONSE
TO OUTPUT CURRENT STEP
vs
TIME
4
VI = 5 V
3
CL = 100 pF
0.1 % TA = 25°C
2
1
0.01 %
0
VO Response
–1
–2
10 mA
–3
IO Step
0
0.01 %
0.1 %
–4
– 10 mA
– 1.5 V
0
150 300
m 450 600 750 900 1050
t – Time – s
Figure 13
OUTPUT VOLTAGE RESPONSE
TO INPUT VOLTAGE STEP
vs
TIME
500
4 _{IO = 0}
3 ^{CL = 100 pF}
TA = 25°C
2
0.1 %
1
0
VO Response
–1
–2
–3
VI = 4.5 V
–4
VI Step
– 500
0
50
0.01 %
VI = 5.5 V
0.1 %
VI = 4.5 V
100
150
200
t – Time - ms
Figure 14
OUTPUT VOLTAGE POWER-UP RESPONSE
vs
TIME
3 _{IO = 0}
CL = 100 pF
TA = 25°C
0.1 %
2
Output Voltage Response
1
0
5
Input Voltage Step
0
0
10
20
130
t – Time - ms
Figure 15
STABILITY RANGE
OUTPUT CURRENT
vs
LOAD CAPACITANCE
20
15
VI = 5 V
TA = 25°C
Unstable
10
5
0
–5
Stable
– 10
– 15
– 20
10 ^{– 610 – 5} 10 ^{– 4} 10 ^{– 3} 10 ^{– 2} 10 ^{– 1} 10 ⁰ 10 ¹ 10 ²
m CL– Load Capacitance – F
Figure 16
10
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