Datasheet

 
  
    
SLOS197A − AUGUST1997 − REVISED MARCH 2001
22
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 43
− Equivalent Input Noise Voltage −
f − Frequency − Hz
EQUIVALENT INPUT NOISE VOLTAGE
†
vs
FREQUENCY
V
n
nV/
Hz
10
1
10
2
10
3
10
4
120
V
DD
= 3 V
R
S
= 20 Ω
T
A
= 25°C
100
80
60
40
20
0
Figure 44
− Equivalent Input Noise Voltage −
f − Frequency − Hz
EQUIVALENT INPUT NOISE VOLTAGE
†
vs
FREQUENCY
V
n
nV/ Hz
V
DD
= 5 V
R
S
= 20 Ω
T
A
= 25°C
10
1
10
2
10
3
10
4
120
100
80
60
40
20
0
Figure 45
Input Noise Voltage − nV
t − Time − s
INPUT NOISE VOLTAGE OVER
A 10-SECOND PERIOD
†
0246
750
1000
810
500
−250
−500
−750
−1000
250
V
DD
= 5 V
f = 0.1 Hz to 10 Hz
T
A
= 25°C
0
Figure 46
THD + N − Total Harmonic Distortion Plus Noise − %
f − Frequency − Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
†
vs
FREQUENCY
10
1
10
2
10
3
10
4
10
5
0.1
10
0.01
1
A
V
= 1
A
V
= 10
A
V
= 1
A
V
= 10
V
DD
= 5 V
T
A
= 25°C
R
L
= 2 kΩ Tied to 2.5 V
R
L
= 2 kΩ Tied to 0 V
†
For all curves where V
DD
= 5 V, all loads are referenced to 2.5 V. For all curves where V
DD
= 3 V, all loads are referenced to 1.5 V.