© 2008 Microchip Technology Inc.

DS21811E-page 11

MCP6281/1R/2/3/4/5

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

For the MCP6285 only, the output of op amp A is

connected directly to the non-inverting input of

makes it possible to provide a Chip Select pin for duals

in 8-pin packages.

3.4

Chip Select Digital Input (CS)

This is a CMOS, Schmitt-triggered input that places the

part into a low-power mode of operation.

3.5

Power Supply Pins

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

need bypass capacitors.

MCP6281

MCP6281R

MCP6283

Symbol

Description

PDIP, SOIC,

MSOP

SOT-23-5

SOT-23-5

PDIP, SOIC,

MSOP

SOT-23-6

61

1

6

1

Analog Output

24

4

2

4

Inverting Input

33

3

3

3

Non-inverting Input

75

2

7

6

Positive Power Supply

42

5

4

2

Negative Power Supply

——

—

8

5

CS

Chip Select

1,5,8

—

—

1,5

—

NC

No Internal Connection

MCP6282

MCP6284

MCP6285

Symbol

Description

PDIP, SOIC, MSOP

PDIP, SOIC, TSSOP

PDIP, SOIC, MSOP

11

—

Analog Output (op amp A)

22

2

Inverting Input (op amp A)

33

3

Non-inverting Input (op amp A)

84

8

Positive Power Supply

55

—

Non-inverting Input (op amp B)

66

6

Inverting Input (op amp B)

77

7

Analog Output (op amp B)

—8—

—9—

Inverting Input (op amp C)

—10—

Non-inverting Input (op amp C)

411

4

Negative Power Supply

—12—

Non-inverting Input (op amp D)

—13—

Inverting Input (op amp D)

—14—

——

1

Analog Output (op amp A)/Non-

inverting Input (op amp B)

——

5

CS

Chip Select