Datasheet

MCP6V11/1U
DS25124A-page 14 © 2012 Microchip Technology Inc.
Note: Unless otherwise indicated, T
A
=+25°C, V
DD
= +1.6V to 5.5V, V
SS
= GND, V
CM
=V
DD
/3, V
OUT
=V
DD
/2,
V
L
=V
DD
/2, R
L
=100kΩ to V
L
and C
L
= 20 pF.
2.4 Input Noise and Distortion
FIGURE 2-34: Input Noise Voltage Density
and Integrated Input Noise Voltage vs.
Frequency.
FIGURE 2-35: Input Noise Voltage Density
vs. Input Common Mode Voltage.
FIGURE 2-36: Inter-Modulation Distortion
vs. Frequency with V
CM
Disturbance (see
Figure 1-6).
FIGURE 2-37: Inter-Modulation Distortion
vs. Frequency with V
DD
Disturbance
(see Figure 1-6).
FIGURE 2-38: Input Noise vs. Time with
1 Hz and 10 Hz Filters and V
DD
=1.6V.
FIGURE 2-39: Input Noise vs. Time with
1 Hz and 10 Hz Filters and V
DD
=5.5V.
10
100
1000
10
100
1000
d
Input Noise Voltage;
E
ni
(μV
P-P
)
o
ise Voltage Density;
e
ni
(nV/¥Hz)
e
ni
V
DD
= 5.5V
V
DD
= 1.6V
1
10
1
10
1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05
Integrate
d
Input No
Frequency (Hz)
E
ni
(0 Hz to f)
1 10 100 1k 10k 100k
140
160
y
f < 500 Hz
120
140
D
ensit
y
V
DD
= 1.6V
80
100
o
ltage
D
¥
Hz)
V
DD
= 5.5V
60
80
o
ise V
o
(nV/
¥
20
40
n
put N
o
0
20
I
n
-0.5
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Common Mode Input Voltage (V)
1000
G
DM
= 1 V/V
V
CM
tone = 50 mV
PK
, f = 100 Hz
(
μV
PK
)
CM
PK
100
m
, RTI
(
IMD tone at DC
residual 100 Hz tone
10
p
ectru
m
V
DD
= 1.6V
V
DD
= 5.5V
10
MD S
p
1
I
1
1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05
Frequency (Hz)
1 100 100k10k10 1k
1000
G
DM
= 1 V/V
V
DD
tone = 50 mV
PK
,
f = 100 Hz
(
μV
PK
)
DD
PK
,
100
m
, RTI
(
IMD tone at DC
10
p
ectru
m
100 Hz tone
V
DD
= 5.5V
V
DD
= 1.6V
10
MD S
p
1
I
1
1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05
Frequency (Hz)
10 100 10k1k
N
oise Voltage; e
ni
(t)
(0.5 μV/div)
V
DD
= 1.6V
NPBW = 10 Hz
0 102030405060708090100
Input
N
Time (s)
NPBW = 10 Hz
NPBW = 1 Hz
0.0
0.5
1.0
1.5
2.0
2.5
3.0
N
oise Voltage; e
ni
(t)
(0.5 μV/div)
V
DD
= 5.5V
NPBW = 1
0
Hz
-2.0
-1.5
-1.0
-0.5
0 102030405060708090100
Input
N
Time (s)
0
NPBW = 1 Hz