MCP6H71 datasheet(15/42 Pages) MICROCHIP

15 / 42 page

 2012 Microchip Technology Inc.

DS22325B-page 15

MCP6H71/2/4

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 (VDD) is 3.5V to 12V higher

than the negative power supply (VSS). For normal

operation, the other pins are at voltages between VSS

and VDD.

Typically, these parts can be used in single-supply

operation or dual-supply operation. Also, 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).

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

MCP6H71

MCP6H72

MCP6H74

Symbol

Description

SOIC

2x3 TDFN

SOIC

2x3 TDFN

SOIC,

TSSOP

VOUT, VOUTA

Analog Output (op amp A)

VIN–, VINA–

Inverting Input (op amp A)

VIN+, 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)

——

—

VOUTC

Analog Output (op amp C)

——

—

VINC–

Inverting Input (op amp C)

——

—

VINC+

Non-Inverting Input (op amp C)

VSS

Negative Power Supply

——

—

VIND+

Non-Inverting Input (op amp D)

——

—

VIND–

Inverting Input (op amp D)

——

—

VOUTD

Analog Output (op amp D)

1, 5, 8

—

No Internal Connection

—

Exposed Thermal Pad (EP);

must be connected to VSS.

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