Rainbow-electronics MAX1243 Manuel d'utilisateur télécharger pdf

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

For small orders, phone 408-737-7600 ext. 3468.

__________________General Description

The MAX1242/MAX1243 are low-power, 10-bit analog-

to-digital converters (ADCs) available in 8-pin pack-

ages. They operate with a single +2.7V to +5.25V

supply and feature a 7.5µs successive-approximation

ADC, a fast track/hold (1.5µs), an on-chip clock, and a

high-speed, 3-wire serial interface.

Power consumption is only 3mW (V

= 3V) at the

73ksps maximum sampling speed. A 2µA shutdown

mode reduces power at slower throughput rates.

The MAX1242 has an internal 2.5V reference, while the

MAX1243 requires an external reference. The MAX1243

accepts signals from 0V to V

REF

, and the reference

input range includes the positive supply rail. An exter-

nal clock accesses data from the 3-wire interface,

which connects directly to standard microcontroller I/O

ports. The interface is compatible with SPI™, QSPI™,

and Microwire™.

Excellent AC characteristics and very low power com-

bined with ease of use and small package size make

these converters ideal for remote-sensor and data-

acquisition applications, or for other circuits with

demanding power consumption and space require-

ments. The MAX1242/MAX1243 are available in 8-pin

DIP and SO packages.

Applications

Portable Data Logging Process Control Monitoring

Test Equipment Temperature Measurement

Isolated Data Acquisition

________________________________Features

♦ +2.7V to +5.25V Single-Supply Operation

♦ 10-Bit Resolution

♦ Internal 2.5V Reference (MAX1242)

♦ Small Footprint: 8-Pin DIP and SO Packages

♦ Low Power: 3.7mW (73ksps, MAX1242)

3mW (73ksps, MAX1243)

66µW (1ksps, MAX1243)

5µW (power-down mode)

♦ Internal Track/Hold

♦ SPI™/QSPI™/Microwire™ 3-Wire Serial Interface

♦ Pin-Compatible 12-Bit Upgrades:

MAX1240/MAX1241

MAX1242/MAX1243

+2.7V to +5.25V, Low-Power, 10-Bit

Serial ADCs in SO-8

________________________________________________________________

Maxim Integrated Products

19-1156; Rev 2; 6/98

SPI and QSPI are trademarks of Motorola, Inc. Microwire is a trademark of National Semiconductor Corp.

Ordering Information continued at end of data sheet.

Note:

Order the MAX1242A in place of the MAX1242C. Order the

MAX1242B in place of the MAX1242D.

________________Functional Diagram

AIN

T/H

DOUT

OUTPUT

SHIFT

CONTROL

LOGIC

2.5V

REFERENCE

MAX1242 ONLY

INT

CLOCK

10-BIT

SAR

REF

SHDN

SCLK

MAX1242

MAX1243

GND

TOP VIEW

SCLK

DOUT

GND

REF

SHDN

AIN

DIP/SO

MAX1242

MAX1243

Pin Configuration

_________________Ordering Information

±18 Plastic DIP-40°C to +85°CMAX1242BEPA

/28 Plastic DIP-40°C to +85°CMAX1242AEPA

/28 SO0°C to +70°CMAX1242ACSA

±1

INL

(LSB)

8 SO

8 Plastic DIP

PIN-

PACKAGE

TEMP. RANGE

0°C to +70°C

0°C to +70°CMAX1242BCSA

MAX1242BCPA

MAX1242ACPA

PART

1 2 3 4 5 6 ... 11 12

MAX1242/MAX1243 1
Serial ADCs in SO-8 1

Résumé du contenu

Page 1 - Serial ADCs in SO-8

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.For small orders, phone 408-737-7600 ext. 3468.________

Page 2

MAX1242/MAX1243+2.7V to +5.25V, Low-Power, 10-BitSerial ADCs in SO-810 _______________________________________________________________________________

Page 3

If a serial interface is available, set the CPU’s serialinterface in master mode so the CPU generates the ser-ial clock. Choose a clock frequency up t

Page 4

MAX1242/MAX1243+2.7V to +5.25V, Low-Power, 10-BitSerial ADCs in SO-8Maxim cannot assume responsibility for use of any circuitry other than circuitry e

Page 5

Gain Temperature CoefficientMAX1242/MAX1243+2.7V to +5.25V, Low-Power, 10-BitSerial ADCs in SO-82 ____________________________________________________

Page 6

+2.7V to +5.25V, Low-Power, 10-BitSerial ADCs in SO-8_______________________________________________________________________________________ 3ELECTRIC

Page 7

MAX1242/MAX1243+2.7V to +5.25V, Low-Power, 10-BitSerial ADCs in SO-84 ________________________________________________________________________________

Page 8

MAX1242/MAX1243+2.7V to +5.25V, Low-Power, 10-BitSerial ADCs in SO-8__________________________________________________________________________________

Page 9

MAX1242/MAX1243+2.7V to +5.25V, Low-Power, 10-BitSerial ADCs in SO-86 ________________________________________________________________________________

Page 10

MAX1242/MAX1243+2.7V to +5.25V, Low-Power, 10-BitSerial ADCs in SO-8__________________________________________________________________________________

Page 11

MAX1242/MAX1243+2.7V to +5.25V, Low-Power, 10-BitSerial ADCs in SO-88 ________________________________________________________________________________

Page 12

MAX1242/MAX1243+2.7V to +5.25V, Low-Power, 10-BitSerial ADCs in SO-8__________________________________________________________________________________

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Rainbow-electronics MAX1243 Manuel d'utilisateur

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