General Description

The MAX11047/MAX11048/MAX11049 and MAX11057/

MAX11058/MAX11059 16-bit/14-bit ADCs offer 4, 6, or 8

independent input channels. Featuring independent track

and hold (T/H) and SAR circuitry, these parts provide

simultaneous sampling at 250ksps for each channel.

The devices accept a 0 to +5V input. All inputs are

overrange protected with internal ±20mA input clamps

providing overrange protection with a simple external

resistor. Other features include a 4MHz T/H input band-

width, internal clock, and internal or external reference.

A 20MHz, bidirectional, parallel interface provides the

conversion results and accepts digital configuration

inputs.

The devices operate with a 4.75V to 5.25V analog supply

and a separate flexible 2.7V to 5.25V digital supply for

interfacing with the host without a level shifter. The

MAX11047/MAX11048/MAX11049 are available in a 56-pin

TQFN and 64-pin TQFP packages while the MAX11057/

MAX11058/MAX11059 are available in TQFP only. All

devices operate over the extended -40°C to +85°C tem-

perature range.

Applications

Automatic Test Equipment

Power-Factor Monitoring and Correction

Power-Grid Protection

Multiphase Motor Control

Vibration and Waveform Analysis

Features

o 16-Bit ADC (MAX11047/MAX11048/MAX11049)

o 14-Bit ADC (MAX11057/MAX11058/MAX11059)

o 8-Channel ADC (MAX11047/MAX11057)

o 6-Channel ADC (MAX11048/MAX11058)

o 4-Channel ADC (MAX11049/MAX11059)

o Single Analog and Digital Supply

o High-Impedance Inputs Up to 1GΩ

o On-Chip T/H Circuit for Each Channel

o Fast 3µs Conversion Time

o High Throughput: 250ksps for Each Channel

o 16-/14-Bit, High-Speed, Parallel Interface

o Internal Clocked Conversions

o 10ns Aperture Delay

o 100ps Channel-to-Channel T/H Matching

o Low Drift, Accurate 4.096V Internal Reference

Providing an Input Range of 0 to 5V

o External Reference Range of 3.0V to 4.25V,

Allowing Full-Scale Input Ranges of +3.7V to

+5.2V

o 56-Pin TQFN (8mm x 8mm) and 64-Pin TQFP

(10mm x 10mm) Packages

o Evaluation Kit Available (MAX11046EVKIT+)

4-/6-/8-Channel, 16-/14-Bit,

Simultaneous-Sampling ADCs

________________________________________________________________

Maxim Integrated Products

1

Ordering Information

19-5106; Rev 2; 1/11

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

PIN-PACKAGE

CHANNELS

MAX11047ETN+

56 TQFN-EP*

4

MAX11047ECB+

64 TQFP-EP*

4

MAX11048ETN+

56 TQFN-EP*

6

MAX11048ECB+

64 TQFP-EP*

6

MAX11049ETN+

56 TQFN-EP*

8

MAX11049ECB+

64 TQFP-EP*

8

MAX11057ECB+

64 TQFP-EP*

4

MAX11058ECB+

64 TQFP-EP*

6

MAX11059ECB+

64 TQFP-EP*

8

Note: All devices are specified over the -40°C to +85°C operating

temperature range.

+

Denotes a lead(Pb)-free/RoHS-compliant package.

*

EP = Exposed pad.

Functional Diagram

CLAMP

S/H

16-/14-BIT ADCs

CLAMP

S/H

16-/14-BIT ADCs

REF

BUF

CONFIGURATION

REGISTERS

INTERFACE

AND

CONTROL

BANDGAP

REFERENCE

CH0

AVDD

AGNDS

AGND

DB15**

DB0/CR0

DB3/CR3

DB4

EOCb

SHDN

CONVST

CSb

RDb

WRb

DGND

DVDD

RDC

RDC_SENSE*

REFIO

INT REF

10k

Ω

EXT REF

*CONNECTED INTERNALLY ON THE TQFN PARTS

**MAX11047/MAX11048/MAX11049

MAX11047/MAX11048/MAX11049/

MAX11057/MAX11058/MAX11059