Datasheet

 2004 Microchip Technology Inc. DS21908A-page 11
MCP6S91/2/3
Note: Unless otherwise indicated, T
A
= +25°C, V
DD
= +2.5V to +5.5V, V
SS
= GND, V
REF
=V
SS
, G = +1 V/V,
Input = CH0 = (0.3V)/G, CH1 = 0.3V, R
L
=10kΩ to V
DD
/2 and C
L
= 60 pF.
FIGURE 2-7: Input Offset Voltage,
V
DD
=4.0V.
FIGURE 2-8: Input Offset Voltage
Mismatch.
FIGURE 2-9: Input Noise Voltage Density
vs. Frequency.
FIGURE 2-10: Input Offset Voltage Drift.
FIGURE 2-11: Input Offset Voltage vs.
V
REF
Voltage.
FIGURE 2-12: Input Noise Voltage Density
vs. Gain.
0%
5%
10%
15%
20%
25%
30%
-3 -2 -1 0 1 2 3
Input Offset Voltage (mV)
Percentage of Occurrences
600 Samples
G = +1
V
DD
= 4.0V
0%
5%
10%
15%
20%
25%
30%
35%
-30 -20 -10
0
10 20 30
Input Offset Voltage Mismatch (µV)
Percentage of Occurrences
32 Samples
V
DD
= 5.5V
V
IN
= 0.3V
σ
= 10.0 µV
RMS
Measurement
Repeatability:
10.4 µV
RMS
1
10
100
1000
0.1 1 10 100 1000 10000 100000
Frequency (Hz)
Input Noise Voltage Density
(nV/

Hz)
1k 10k 100k1 10 1000.1
0%
2%
4%
6%
8%
10%
12%
14%
16%
18%
20%
22%
24%
-10
-8 -6 -4 -2
0 2 4 6 8
10
Input Offset Voltage Drift (µV/°C)
Percentage of Occurrences
600 Samples
T
A
= -40 to +125°C
G = +1
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
V
REF
Voltage (V)
Input Offset Voltage (mV)
V
DD
= 5.5V
V
DD
= 2.5V
G = +1
V
IN
= V
REF
0
1
2
3
4
5
6
7
8
9
10
11
12
13
12458101632
Gain (V/V)
Input Noise Voltage Density
(nV/

Hz)
f = 10 kHz