Datasheet

© 2010-2012 Microchip Technology Inc. DS22257C-page 11
MCP6441/2/4
3.0 PIN DESCRIPTIONS
Descriptions of the pins are listed in Table 3-1.
3.1 Analog Output (V
OUT
)
The output pin is a low-impedance voltage source.
3.2 Power Supply Pins (V
DD
, V
SS
)
The positive power supply (V
DD
) is 1.4V to 6.0V higher
than the negative power supply (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 bypass capacitors.
3.3 Analog Inputs (V
IN
+, V
IN
-)
The non-inverting and inverting inputs are high-
impedance CMOS inputs with low bias currents.
3.4 Exposed Thermal Pad (EP)
There is an internal connection between the Exposed
Thermal Pad (EP) and the V
SS
pin; they must be con-
nected to the same potential on the Printed Circuit
Board (PCB).
This pad can be connected to a PCB ground plane to
provide a larger heat sink. This improves the package
thermal resistance (θ
JA
).
TABLE 3-1: PIN FUNCTION TABLE
MCP6441 MCP6442 MCP6444
Symbol Description
SC70-5,
SOT-23-5
SOIC,
MSOP
2x3 TDFN
SOIC,
TSSOP
1111V
OUT,
V
OUTA
Analog Output (op amp A)
4222V
IN
–, V
INA
– Inverting Input (op amp A)
3333V
IN
+, V
INA
+ Non-inverting Input (op amp A)
5884V
DD
Positive Power Supply
—555V
INB
+ Non-inverting Input (op amp B)
—666V
INB
- Inverting Input (op amp B)
—777V
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)
24411V
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 — EP Exposed Thermal Pad (EP);
must be connected to V
SS