Datasheet

 2012 Microchip Technology Inc. DS25138B-page 15
MCP6H91/2/4
3.0 PIN DESCRIPTIONS
Descriptions of the pins are listed in Table 3-1.
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 Pins
The positive power supply (V
DD
) is 3.5V to 12V 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 can be used in single-supply
operation or dual-supply operation. Also, 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).
This pad can be connected to a PCB ground plane to
provide a larger heat sink. This improves the package
thermal resistance (
JA
).
TABLE 3-1: PIN FUNCTION TABLE
MCP6H91 MCP6H92 MCP6H94
Symbol Description
SOIC 2x3 TDFN SOIC 2x3 TDFN
SOIC,
TSSOP
661 1 1V
OUT
, V
OUTA
Analog Output (op amp A)
222 2 2V
IN
–, V
INA
– Inverting Input (op amp A)
333 3 3V
IN
+, V
INA
+ Non-inverting Input (op amp A)
778 8 4 V
DD
Positive Power Supply
—— 5 5 5 V
INB
+ Non-inverting Input (op amp B)
—— 6 6 6
V
INB
–
Inverting Input (op amp B)
—— 7 7 7 V
OUTB
Analog Output (op amp B)
——— — 8 V
OUTC
Analog Output (op amp C)
——— — 9 V
INC
– Inverting Input (op amp C)
——— — 10 V
INC
+ Non-inverting Input (op amp C)
444 4 11 V
SS
Negative Power Supply
——— — 12 V
IND
+ Non-inverting Input (op amp D)
——— — 13 V
IND
– Inverting Input (op amp D)
——— — 14 V
OUTD
Analog Output (op amp D)
1, 5, 8 1, 5, 8 — — — NC No Internal Connection
— 9 — 9 — EP Exposed Thermal Pad (EP);
must be connected to V
SS
.