General Description

The MAX1167/MAX1168 low-power, multichannel, 16-

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

MAX1167/MAX1168 operate with a single +5V analog

supply and feature a separate digital supply, allowing

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

AutoShutdown™ reduces the supply current to 185µA at

10ksps and to less than 10µA at reduced sampling rates.

The MAX1167 includes a 4-channel input multiplexer, and

the MAX1168 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 MAX1168. The MAX1168 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 MAX1167/MAX1168 ideal for control and data-acqui-

sition operations or for other applications with demanding

power consumption and space requirements. The

MAX1167 is available in a 16-pin QSOP package and the

MAX1168 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 evaluation kit to evaluate the

MAX1168.

Applications

Motor Control

Industrial Process Control

Industrial I/O Modules

Data-Acquisition Systems

Thermocouple Measurements

Accelerometer Measurements

Features

♦ 16-Bit Resolution, No Missing Codes

♦ +5V Single-Supply Operation

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

Reference

♦ Internal Track/Hold, 4MHz Input Bandwidth

♦ Internal or External Clock

♦ SPI/QSPI/MICROWIRE-Compatible Serial

Interface, MAX1168 Performs DSP-Initiated

Conversions

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

(MAX1168 Only)

♦ 4-Channel (MAX1167) or 8-Channel (MAX1168)

Input Mux

Scan Mode Sequentially Converts Multiple

Channels or One Channel Continuously

♦ Low Power

3.6mA at 200ksps

1.85mA at 100ksps

185µA at 10ksps

0.6µA in Full Power-Down Mode

♦ Small Package Size

16-Pin QSOP (MAX1167)

24-Pin QSOP (MAX1168)

Multichannel, 16-Bit, 200ksps Analog-to-Digital

Converters

________________________________________________________________

Maxim Integrated Products

1

Ordering Information

19-2956; Rev 1; 10/09

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.

EVALUATION

KIT

AVAILABLE

PART

TEMP RANGE

PIN-

PACKAGE

INL

(LSB)

MAX1167BCEE

0°C to +70°C

16 QSOP

±3

MAX1167BEEE

-40°C to +85°C

16 QSOP

±3

MAX1168BCEG

0°C to +70°C

24 QSOP

±3

MAX1168BEEG

-40°C to +85°C

24 QSOP

±3

SPI/QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

Pin Configurations appear at end of data sheet.