MAX681CPD Maxim Integrated Products, MAX681CPD Datasheet

MAX681CPD

Manufacturer Part Number

MAX681CPD

Description

Charge Pumps

Manufacturer

Maxim Integrated Products

Datasheets

1.MAX681CPD.pdf (8 pages)

2.MAX681CPD.pdf (8 pages)

Specifications of MAX681CPD

Function

Inverting, Step Up

Output Voltage

+/- 10 V

Output Current

10 mA

Maximum Operating Temperature

+ 70 C

Package / Case

PDIP-14 Narrow

Minimum Operating Temperature

0 C

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

MAX681CPD

Manufacturer:

MAXIM/美信

Quantity:

20 000

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________________General Description

The MAX680/MAX681 are monolithic, CMOS, dual

charge-pump voltage converters that provide ±10V out-

puts from a +5V input voltage. The MAX680/MAX681 pro-

vide both a positive step-up charge pump to develop

+10V from +5V input and an inverting charge pump to

generate the -10V output. Both parts have an on-chip,

8kHz oscillator. The MAX681 has the capacitors internal to

the package, and the MAX680 requires four external

capacitors to produce both positive and negative voltages

from a single supply.

The output source impedances are typically 150Ω, pro-

viding useful output currents up to 10mA. The low quies-

cent current and high efficiency make this device suitable

for a variety of applications that need both positive and

negative voltages generated from a single supply.

The MAX864/MAX865 are also recommended for new

designs. The MAX864 operates at up to 200kHz and uses

smaller capacitors. The MAX865 comes in the smaller

µMAX package.

________________________Applications

The MAX680/MAX681 can be used wherever a single

positive supply is available and where positive and nega-

tive voltages are required. Common applications include

generating ±6V from a 3V battery and generating ±10V

from the standard +5V logic supply (for use with analog

circuitry). Typical applications include:

19-0896; Rev 1; 7/96

±6V from 3V Lithium Cell

Hand-Held Instruments

Data-Acquisition Systems

Panel Meters

±10V from +5V Logic

Supply

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

_________________Pin Configurations

C2+

C1-

C2-

V-

TOP VIEW

DIP/SO

MAX680

________________________________________________________________ Maxim Integrated Products

V+

C1+

GND

Battery-Operated

Equipment

Operational Amplifier

Power Supplies

C2+

C1-

C2-

V+

V-

MAX681

+5V to ±10V Voltage Converters

DIP

GND

V+

_______________Ordering Information

____________________________Features

_________Typical Operating Circuits

MAX680CPA

MAX680CSA

MAX680C/D

MAX680EPA

MAX680ESA

MAX680MJA

MAX681CPD

MAX681EPD

95% Voltage-Conversion Efficiency

85% Power-Conversion Efficiency

+2V to +6V Voltage Range

Only Four External Capacitors Required (MAX680)

No Capacitors Required (MAX681)

500µA Supply Current

Monolithic CMOS Design

(MAX681 ONLY)

GND

FOUR PINS REQUIRED

GND

PART

+5V

4.7 F

-40°C to +85°C

-55°C to +125°C

-40°C to +85°C

+5V to ±10V CONVERTER

TEMP. RANGE

0°C to +70°C

C1-

C1+

C2-

C1+

MAX680

MAX681

GND

V+

V-

V+

V-

8 Plastic DIP

8 Narrow SO

Dice

8 Plastic DIP

8 Narrow SO

8 CERDIP

14 Plastic DIP

PIN-PACKAGE

4.7 F

+10V

-10V

GND

+10V

-10V

GND

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