MAX1068 Maxim Integrated Products, MAX1068 Datasheet

MAX1068

Manufacturer Part Number

MAX1068

Description

(MAX1067 / MAX1068) 200ksps Analog-to-Digital Converters

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX1068.pdf (30 pages)

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The MAX1067/MAX1068 low-power, multichannel, 14-

bit analog-to-digital converters (ADCs) feature a suc-

cessive-approximation ADC, integrated +4.096V

reference, a reference buffer, an internal oscillator,

automatic power-down, and a high-speed SPI™/

QSPI™/MICROWIRE™-compatible interface. The

MAX1067/MAX1068 operate with a single +5V analog

supply and feature a separate digital supply, allowing

direct interfacing with +2.7V to +5.5V digital logic.

The MAX1067/MAX1068 consume only 3.6mA (AV

ence. AutoShutdown™ reduces the supply current to

185µA at 10ksps and to less than 10µA at reduced sam-

pling rates.

The MAX1067 includes a 4-channel input multiplexer, and

the MAX1068 accepts up to eight analog inputs.

In addition, digital signal processor (DSP)-initiated con-

versions are simplified with the DSP frame-sync input and

output featured in the MAX1068. The MAX1068 includes a

data-bit transfer input to select between 8-bit-wide or 16-

bit-wide data-transfer modes. Both devices feature a scan

mode that converts each channel sequentially or one

channel continuously.

Excellent dynamic performance and low power, com-

bined with ease of use and an integrated reference,

make the MAX1067/MAX1068 ideal for control and data-

acquisition operations or for other applications with

demanding power consumption and space require-

ments. The MAX1067 is available in a 16-pin QSOP

package, and the MAX1068 is available in a 24-pin

QSOP package. Both devices are guaranteed over the

commercial (0°C to +70°C) and extended (-40°C to

+85°C) temperature ranges. Use the MAX1168 evalua-

tion kit to evaluate the MAX1068.

19-2955; Rev 1; 8/07

SPI/QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

For pricing delivery, and ordering information please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Multichannel, 14-Bit, 200ksps Analog-to-Digital

= +5V) at 200ksps when using an external refer-

Motor Control

Industrial Process Control

Industrial I/O Modules

Data-Acquisition Systems

Thermocouple Measurements

Accelerometer Measurements

________________________________________________________________ Maxim Integrated Products

General Description

Applications

♦ 14-Bit Resolution, ±0.5 LSB INL and

♦ +5V Single-Supply Operation

♦ Adjustable Logic Level (+2.7V to +5.25V)

♦ Input Voltage Range: 0 to V

♦ Internal (+4.096V) or External (+3.8V to AV

♦ Internal Track/Hold, 4MHz Input Bandwidth

♦ Internal or External Clock

♦ SPI/QSPI/MICROWIRE-Compatible Serial

♦ 8-Bit-Wide or 16-Bit-Wide Data-Transfer Mode

♦ 4-Channel (MAX1067) or 8-Channel (MAX1068)

♦ Low Power

♦ Small Package Size

Ordering Information continued at end of data sheet.

Pin Configurations appear at end of data sheet.

MAX1067ACEE

MAX1067BCEE

MAX1067CCEE

MAX1067AEEE

MAX1067BEEE

MAX1067CEEE

±1 LSB DNL (max)

Reference

Interface, MAX1068 Performs DSP-Initiated

Conversions

(MAX1068 Only)

Input Mux

Scan Mode Sequentially Converts Multiple

Channels or One Channel Continuously

3.6mA at 200ksps

1.85mA at 100ksps

185µA at 10ksps

0.6µA in Full Power-Down Mode

16-Pin QSOP (MAX1067)

24-Pin QSOP (MAX1068)

PART

-40°C to +85°C

TEMP RANGE

0°C to +70°C

Ordering Information

Converters

REF

PIN-

PACKAGE

16 QSOP

Features

(LSB)

±0.5

)

INL

±1

±2

±1

±2

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