Datasheet

MCP6281/1R/2/3/4/5
DS21811E-page 8 © 2008 Microchip Technology Inc.
TYPICAL PERFORMANCE CURVES (CONTINUED)
Note: Unless otherwise indicated, T
A
= +25°C, V
DD
= +2.2V to +6.0V, V
SS
= GND, V
CM
= V
DD
/2, V
OUT
≈ V
DD
/2,
V
L
= V
DD
/2, R
L
= 10 kΩ to V
L
, C
L
= 60 pF and CS is tied low.
FIGURE 2-19: Input Noise Voltage Density
vs. Frequency.
FIGURE 2-20: Output Short Circuit Current
vs. Power Supply Voltage.
FIGURE 2-21: Quiescent Current vs.
Chip Select (CS
) Voltage at V
DD
= 2.2V
(MCP6283 and MCP6285 only).
FIGURE 2-22: Input Noise Voltage Density
vs. Common Mode Input Voltage at 1 kHz.
FIGURE 2-23: Channel-to-Channel
Separation vs. Frequency (MCP6282 and
MCP6284 only).
FIGURE 2-24: Quiescent Current vs.
Chip Select (CS) Voltage at V
DD
= 5.5V
(MCP6283 and MCP6285 only).
10
100
1,000
1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
Frequency (Hz)
Input Noise Voltage Density
(nV/
√
Hz)
0.1 10010 1k 100k10k 1M1
0
5
10
15
20
25
30
35
0.00.51.01.52.02.53.03.54.04.55.05.5
Power Supply Voltage (V)
Ouptut Short Circuit Current
(mA)
T
A
= +125°C
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
0
50
100
150
200
250
300
350
400
450
500
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2
Chip Select Voltage (V)
Quiescent Current
(µA/Amplifier)
Hysteresis
Op-Amp shuts off here
Op-Amp turns on here
V
DD
= 2.2V
CS swept
high to low
CS swept
low to high
0
5
10
15
20
25
30
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Common Mode Input Voltage (V)
Input Noise Voltage Density
(nV/
√
Hz)
f = 1 kHz
V
DD
= 5.0V
100
110
120
130
140
1 10 100
Frequency (kHz)
Channel-to-Channel Separation
(dB)
0
100
200
300
400
500
600
700
800
900
1000
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
Chip Select Voltage (V)
Quiescent Current
(µA/Amplifier)
Hysteresis
Op Amp toggles On/Off here
V
DD
= 5.5V
CS swept
low to high
CS swept
high to low