MCP6021 datasheet(12/34 Pages) MICROCHIP

12 / 34 page

MCP6021/1R/2/3/4

DS21685C-page 12

3.0

PIN DESCRIPTIONS

Descriptions of the pins are listed in Table 3-1.

TABLE 3-1:

PIN FUNCTION TABLE

3.1

Analog Outputs

The op amp output pins are low-impedance voltage

sources.

3.2

Analog Inputs

The op amp non-inverting and inverting inputs are high-

impedance CMOS inputs with low bias currents.

3.3

VREF Output (MCP6021 and

MCP6023)

Mid-supply reference voltage provided by the single op

amps (except in SOT-23-5 package). This is an

unbuffered, resistor voltage divider internal to the part.

3.4

CS Digital Input

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

part into a low power mode of operation.

3.5

Power Supply (VSS and VDD)

The positive power supply pin (VDD) is 2.5V to 5.5V

higher than the negative power supply pin (VSS). For

normal operation, the other pins are at voltages

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 a local bypass capacitor (typically 0.01 µF to

0.1 µF) within 2 mm of the VDD pin. These parts need

to use a bulk capacitor (typically 1 µF or larger) within

100 mm of the VDD pin; it can be shared with nearby

analog parts.

MCP6021

(PDIP,

SOIC,

MSOP,

TSSOP)

(Note 1)

MCP6021

(SOT-23-5)

(Note 1)

MCP6021R

(SOT-23-5)

(Note 2)

MCP6022 MCP6023 MCP6024

Symbol

Description

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)

5—

—

VREF

Reference Voltage

——

—

Chip Select

1, 8

—

No Internal Connection

Note

The MCP6021 in the 8-pin MSOP package is only available for E-temp (Extended Temperature) parts. The MCP6021

in the 8-pin TSSOP package is only available for I-temp (Industrial Temperature) parts.

The MCP6021R is only available in the 5-pin SOT-23 package, and for E-temp (Extended Temperature) parts.

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