MCP6141/2/3/4
3.0
PIN DESCRIPTIONS
Descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
Symbol
Description
MCP6143
MCP6141
(PDIP,
MCP6141
(PDIP,
MCP6143
MCP6142
MCP6144
SOIC,
(SOT-23-5)
SOIC,
(SOT-23-6)
MSOP)
MSOP)
6
2
3
7
—
—
—
—
—
—
4
—
—
—
—
1, 5, 8
1
4
3
5
—
—
—
—
—
—
2
—
—
—
—
—
1
2
3
8
5
6
7
—
—
—
4
—
—
—
—
—
6
2
3
7
—
—
—
—
—
—
4
—
—
—
8
1, 5
1
4
3
6
—
—
—
—
—
—
2
—
—
—
5
—
1
2
3
4
5
6
7
8
9
10
11
12
13
14
—
—
V
OUT
, V
OUTA
Analog Output (op amp A)
V
IN
–, V
INA
–
V
IN
+, V
INA
+
V
DD
V
INB
+
V
INB
–
V
OUTB
V
OUTC
V
INC
–
V
INC
+
V
SS
V
IND
+
V
IND
–
V
OUTD
CS
NC
Inverting Input (op amp A)
Non-inverting Input (op amp A)
Positive Power Supply
Non-inverting Input (op amp B)
Inverting Input (op amp B)
Analog Output (op amp B)
Analog Output (op amp C)
Inverting Input (op amp C)
Non-inverting Input (op amp C)
Negative Power Supply
Non-inverting Input (op amp D)
Inverting Input (op amp D)
Analog Output (op amp D)
Chip Select
No Internal Connection
3.1
Analog Outputs
3.4
Power Supply (V
SS
and V
DD
)
The output pins are low-impedance voltage sources.
3.2
Analog Inputs
The non-inverting and inverting inputs are high-imped-
ance CMOS inputs with low bias currents.
The positive power supply pin (V
DD
) is 1.4V to 5.5V
higher than the negative power supply pin (V
SS
). For
normal operation, the other pins are at voltages
between V
SS
and V
DD
.
Typically, these parts are used in a single (positive)
supply configuration. In this case, V
SS
is connected to
ground and V
DD
is connected to the supply. V
DD
will
need a local bypass capacitor (typically 0.01
μF
to
0.1
μF)
within 2 mm of the V
DD
pin. These can share a
bulk capacitor with nearby analog parts (within
100 mm), but it is not required.
3.3
CS Digital Input
This is a CMOS, Schmitt-triggered input that places the
part into a low-power mode of operation.
©
2005 Microchip Technology Inc.
DS21668B-page 11
MICROCHIP [ MICROCHIP TECHNOLOGY ]
