Datasheet

MCP3911
DS22286A-page 16 © 2012 Microchip Technology Inc.
Note: Unless otherwise indicated, AV
DD
= 3.3V, DV
DD
= 3.3V; T
A
= 25°C, MCLK = 4 MHz; PRESCALE = 1;
OSR = 256; GAIN = 1; Dithering = Maximum; V
IN
= -0.5 dBFS @ 60 Hz, VREFEXT = 0; CLKEXT = 1,
AZ_FREQ = 0; BOOST = 1X.
FIGURE 2-31: Channel 0 Offset vs.
Temperature.
FIGURE 2-32: Channel 1 Offset vs.
Temperature.
FIGURE 2-33: Channel to Channel Offset
Match vs. Temperature.
FIGURE 2-34: Gain Error vs. Temperature.
FIGURE 2-35: Internal Voltage Reference
vs. Temperature.
FIGURE 2-36: Internal Voltage Reference
vs. Supply Voltage.
50
100
150
200
250
300
350
400
a
nnel 0 Offset (
P
V)
G=32
G=16
G=8
G=4
-100
-50
0
50
-50 -25 0 25 50 75 100 125 150
Ch
a
Temperature (°C)
G=2
G=1
50
100
150
200
250
300
350
400
a
nnel 1 Offset (
P
V)
G=32
G=16
G=8
G=4
-100
-50
0
50
-50 -25 0 25 50 75 100 125 150
Ch
a
Temperature (°C)
G=2
G=1
-80
-60
-40
-20
0
O
ffset Error (
P
V)
CHANNEL 0
CHANNEL 1
-120
-100
-50 -25 0 25 50 75 100 125 150
O
Temperature (°C)
CHANNEL 0
1.1997
1.1998
1.1999
1.2000
1.2001
1.2002
1.2003
2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6
Internal Voltage Reference (V)
V
DD
(V)