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MCP6542-I/SN 参数 Datasheet PDF下载

MCP6542-I/SN图片预览

型号：	MCP6542-I/SN
PDF下载：	下载PDF文件查看货源
内容描述：	推挽输出亚微安比较 [Push-Pull Output Sub-Microamp Comparators]
分类和应用：	比较器放大器放大器电路光电二极管PC
文件页数/大小：	34 页 / 1169 K
品牌：	MICROCHIP [ MICROCHIP ]

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MCP6541/1R/1U/2/3/4

3.0

PIN DESCRIPTIONS

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

TABLE 3-1:

PIN FUNCTION TABLE

MCP6541

(PDIP,

SOIC,

MCP6541

(SOT-23-5,

MSOP)

SC-70-5)

Symbol

Description

6

2

1

1

4

1

2

6

2

1

2

OUT, OUTA Digital Output (comparator A)

V_IN–, V_INA– Inverting Input (comparator A)

V_IN+, V_INA+ Non-inverting Input (comparator A)

4

4

1

3

3

3

3

3

3

3

7

5

2

5

8

7

4

V_DD

Positive Power Supply

—

—

—

—

—

—

4

—

—

—

—

—

—

2

—

—

—

—

—

—

5

—

—

—

—

—

—

2

5

—

—

—

—

—

—

4

5

V_INB

+

Non-inverting Input (comparator B)

Inverting Input (comparator B)

Digital Output (comparator B)

Digital Output (comparator C)

Inverting Input (comparator C)

Non-inverting Input (comparator C)

Negative Power Supply

6

6

V_INB

–

7

7

OUTB

OUTC

—

—

—

4

8

9

V_INC

–

+

10

11

12

13

14

—

—

V_INC

V_SS

—

—

—

—

1, 5, 8

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

8

V_IND

V_IND

+

Non-inverting Input (comparator D)

Inverting Input (comparator D)

Digital Output (comparator D)

Chip Select

–

OUTD

CS

1, 5

NC

No Internal Connection

3.1

Analog Inputs

3.4

Power Supply (V_SSand V_DD)

The comparator non-inverting and inverting inputs are

high-impedance CMOS inputs with low bias currents.

The positive power supply pin (V_DD) is 1.6V to 5.5V

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

normal operation, the other pins are at voltages

between V_SSand V_DD

.

3.2

CS Digital Input

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

supply configuration. In this case, V_SSis connected to

ground and V_DDis connected to the supply. V_DDwill

need a local bypass capacitor (typically 0.01 µF to

0.1 µF) within 2 mm of the V_DDpin. These can share a

bulk capacitor with nearby analog parts (within

100 mm), but it is not required.

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

part into a low power mode of operation.

3.3

Digital Outputs

The comparator outputs are CMOS, push-pull digital

outputs. They are designed to be compatible with

CMOS and TTL logic and are capable of driving heavy

DC or capacitive loads.

© 2006 Microchip Technology Inc.

DS21696E-page 13

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