Datasheet
© 2009 Microchip Technology Inc. DS21881E-page 9
MCP6231/1R/1U/2/4
3.0 PIN DESCRIPTIONS
Descriptions of the pins are listed in Table 3-1 (single op amps) and Table 3-2 (dual and quad op amps).
TABLE 3-1: PIN FUNCTION TABLE FOR SINGLE OP AMPS
TABLE 3-2: PIN FUNCTION TABLE FOR DUAL AND QUAD OP AMPS
3.1 Analog Outputs
The output pins are low-impedance voltage sources.
3.2 Analog Inputs
The non-inverting and inverting inputs are
high-impedance CMOS inputs with low bias currents.
3.3 Power Supply (V
SS
and V
DD
)
The positive power supply (V
DD
) is 1.8V to 6.0V higher
than the negative power supply (V
SS
). For normal
operation, the other pins are 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 bypass capacitors.
3.4 Exposed Thermal Pad (EP)
There is an internal electrical connection between the
Exposed Thermal Pad (EP) and the V
SS
pin; they must
be connected to the same potential on the Printed
Circuit Board (PCB).
MCP6231 MCP6231R MCP6231U
Symbol Description
DFN, MSOP,
PDIP, SOIC
SOT-23-5 SOT-23-5
SOT-23-5
SC70
6114V
OUT
Analog Output
2443V
IN
– Inverting Input
3331V
IN
+ Non-inverting Input
7525V
DD
Positive Power Supply
4252V
SS
Negative Power Supply
1, 5, 8 — — — NC No Internal Connection
9 — — — EP Exposed Thermal Pad (EP); must be
connected to V
SS
.
MCP6232 MCP6234
Symbol Description
MSOP, PDIP,
SOIC, TDFN
PDIP, SOIC, TSSOP
11V
OUTA
Analog Output (op amp A)
22V
INA
– Inverting Input (op amp A)
33V
INA
+ Non-inverting Input (op amp A)
84V
DD
Positive Power Supply
55V
INB
+ Non-inverting Input (op amp B)
66V
INB
– Inverting Input (op amp B)
77V
OUTB
Analog Output (op amp B)
—8V
OUTC
Analog Output (op amp C)
—9V
INC
– Inverting Input (op amp C)
—10V
INC
+ Non-inverting Input (op amp C)
411V
SS
Negative Power Supply
—12V
IND
+ Non-inverting Input (op amp D)
—13V
IND
– Inverting Input (op amp D)
—14V
OUTD
Analog Output (op amp D)
9 — — Exposed Thermal Pad (EP); must be connected to V
SS
.