Datasheet

MCP6V01/2/3
DS22058C-page 14 © 2008 Microchip Technology Inc.
Note: Unless otherwise indicated, T
A
= +25°C, V
DD
= +1.8V to 5.5V, V
SS
= GND, V
CM
=V
DD
/3, V
OUT
=V
DD
/2,
V
L
=V
DD
/2, R
L
=20kΩ to V
L
, C
L
= 60 pF, and CS = GND.
2.4 Input Noise and Distortion
FIGURE 2-35: Input Noise Voltage Density
vs. Frequency.
FIGURE 2-36: Input Noise Voltage Density
vs. Input Common Mode Voltage.
FIGURE 2-37: Inter-Modulation Distortion
vs. Frequency with V
CM
Disturbance (see
Figure 1-7).
FIGURE 2-38: Inter-Modulation Distortion
vs. Frequency with V
DD
Disturbance (see
Figure 1-7).
FIGURE 2-39: Input Noise vs. Time with
1 Hz and 10 Hz Filters and V
DD
=1.8V.
FIGURE 2-40: Input Noise vs. Time with
1 Hz and 10 Hz Filters and V
DD
=5.5V.
10
100
1000
1.E+01 1.E+02 1.E+03 1.E+04 1.E+05
Frequency (Hz)
10
100
1000
Input Noise Voltage;
E
ni
(µV
P-P
)
10 1k 10k 100k
e
ni
E
ni
(0 Hz to f)
Input Noise Voltage Density;
e
ni
(nV/
√
Hz)
100
V
DD
= 1.8V
V
DD
= 5.5V
0
20
40
60
80
100
120
140
160
-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)
V
DD
= 5.5
V
V
DD
= 1.8V
Input Noise Voltage Density
(nV/
√
Hz)
1
10
100
1.E+02 1.E+03 1.E+04 1.E+05
Frequency (Hz)
IMD Spectrum, RTI (µV
PK
)
G
DM
= 1 V/V
V
CM
tone = 50 mV
PK
, f = 1 kHz
100 1k 10k
100k
IMD tone at DC
residual 1 kHz tone
V
DD
= 1.8V
V
DD
= 5.5V
1
10
100
1.E+02 1.E+03 1.E+04 1.E+05
Frequency (Hz)
IMD Spectrum, RTI (µV
PK
)
100 1k 10k
100k
G
DM
= 1 V/V
V
DD
tone = 50 mV
P-P
, f = 1 kHz
IMD tone at DC
1 kHz tone
V
DD
= 5.5V
V
DD
= 1.8V
0 102030405060708090100
t (s)
Input Noise Voltage; e
ni
(t)
(0.5 µV/div)
V
DD
= 1.8V
NPBW = 10 Hz
NPBW = 1 Hz
0 102030405060708090100
t (s)
Input Noise Voltage; e
ni
(t)
(0.5 µV/div)
V
DD
= 5.5V
NPBW = 10 Hz
NPBW = 1 Hz