MCP6231 datasheet(9/40 Pages) MICROCHIP

9 / 40 page

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 (VSS and VDD)

The positive power supply (VDD) is 1.8V to 6.0V higher

than the negative power supply (VSS). For normal

operation, the other pins are between VSS and VDD.

Typically, these parts are used in a single (positive)

supply configuration. In this case, VSS is connected to

ground and VDD is connected to the supply. VDD will

need bypass capacitors.

3.4

Exposed Thermal Pad (EP)

There is an internal electrical connection between the

Exposed Thermal Pad (EP) and the VSS 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

SC70

VOUT

Analog Output

VIN–

Inverting Input

VIN+

Non-inverting Input

VDD

Positive Power Supply

VSS

Negative Power Supply

1, 5, 8

—

No Internal Connection

—

Exposed Thermal Pad (EP); must be

connected to VSS.

MCP6232

MCP6234

Symbol

Description

MSOP, PDIP,

SOIC, TDFN

PDIP, SOIC, TSSOP

VOUTA

Analog Output (op amp A)

VINA–

Inverting Input (op amp A)

VINA+

Non-inverting Input (op amp A)

VDD

Positive Power Supply

VINB+

Non-inverting Input (op amp B)

VINB–

Inverting Input (op amp B)

VOUTB

Analog Output (op amp B)

—8

VOUTC

Analog Output (op amp C)

—9

VINC–

Inverting Input (op amp C)

—10

VINC+

Non-inverting Input (op amp C)

411

VSS

Negative Power Supply

—12

VIND+

Non-inverting Input (op amp D)

—13

VIND–

Inverting Input (op amp D)

—14

VOUTD

Analog Output (op amp D)

—

Exposed Thermal Pad (EP); must be connected to VSS.

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