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MAX1047BETX

10-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports

Maxim Integrated 

19-3294; Rev 1; 8/04

EVAALVUAAILTAIOBNLEKIT

10-Bit, Multichannel ADCs/DACs with FIFO,

Temperature Sensing, and GPIO Ports

General Description

The MAX1040–MAX1043/MAX1046–MAX1049 integrate a

multichannel, 10-bit, analog-to-digital converter (ADC)

and a quad, 10-bit, digital-to-analog converter (DAC) in a

single IC. The devices also include a temperature sensor

and configurable general-purpose I/O ports (GPIOs) with

a 25MHz SPI™-/QSPI™-/MICROWIRE™-compatible seri-

al interface. The ADC is available in a 4 or an 8 input-

channel version. The four DAC outputs settle within 2.0µs,

and the ADC has a 300ksps conversion rate.

All devices include an internal reference (2.5V or 4.096V)

providing a well-regulated, low-noise reference for both

the ADC and DAC. Programmable reference modes for

the ADC and DAC allow the use of an internal reference,

an external reference, or a combination of both. Features

such as an internal ±1°C accurate temperature sensor,

FIFO, scan modes, programmable internal or external

clock modes, data averaging, and AutoShutdown™ allow

users to minimize both power consumption and proces-

sor requirements. The low glitch energy (4nV•s) and low

digital feedthrough (0.5nV•s) of the integrated quad

DACs make these devices ideal for digital control of fast-

response closed-loop systems.

The devices are guaranteed to operate with a supply volt-

age from +2.7V to +3.6V (MAX1041/MAX1043/MAX1047/

MAX1049) and from +4.75V to +5.25V (MAX1040/

MAX1042/MAX1046/MAX1048). These devices consume

2.5mA at 300ksps throughput, only 22µA at 1ksps

throughput, and under 0.2µA in the shutdown mode. The

MAX1042/MAX1043/MAX1048/MAX1049 offer four GPIOs

that can be configured as inputs or outputs.

The MAX1040–MAX1043/MAX1046–MAX1049 are avail-

able in 36-pin thin QFN packages. All devices are speci-

fied over the -40°C to +85°C temperature range.

Features

♦ 10-Bit, 300ksps ADC

Analog Multiplexer with True-Differential

Track/Hold (T/H)

8 Single-Ended Channels or 4 Differential

Channels (Unipolar or Bipolar)

4 Single-Ended Channels or 2 Differential

Channels (Unipolar or Bipolar)

Excellent Accuracy: ±0.5 LSB INL, ±0.5 LSB

DNL, No Missing Codes Over Temperature

♦ 10-Bit, Quad, 2µs Settling DAC

Ultra-Low-Glitch Energy (4nV•s)

Power-Up Options from Zero Scale or Full Scale

Excellent Accuracy: ±0.5 LSB INL

♦ Internal Reference or External Single-Ended/

Differential Reference

Internal Reference Voltage 2.5V or 4.096V

♦ Internal ±1°C Accurate Temperature Sensor

♦ On-Chip FIFO Capable of Storing 16 ADC

Conversion Results and One Temperature Result

♦ On-Chip Channel-Scan Mode and Internal

Data-Averaging Features

♦ Analog Single-Supply Operation

+2.7V to +3.6V or +4.75V to +5.25V

♦ 25MHz, SPI/QSPI/MICROWIRE Serial Interface

♦ AutoShutdown Between Conversions

♦ Low-Power ADC

2.5mA at 300ksps

22µA at 1ksps

0.2µA at Shutdown

♦ Low-Power DAC: 1.5µA

♦ Evaluation Kit Available (Order MAX1258EVKIT)

Applications

Closed-Loop Controls for Optical Components

and Base Stations

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

System Supervision and Control

Data-Acquisition Systems

Ordering Information/Selector Guide

PART

TEMP RANGE

PIN-PACKAGE

REF

VOLTAGE

(V)

ANALOG

SUPPLY

VOLTAGE (V)

RESOLUTION

BITS***

ADC

CHANNELS

DAC

CHANNELS

GPIOs

MAX1040BETX -40°C to +85°C 36 Thin QFN-EP** 4.096 4.75 to 5.25

10

8

4

0

MAX1041BETX* -40°C to +85°C 36 Thin QFN-EP** 2.5

2.7 to 3.6

10

8

4

0

MAX1042BETX -40°C to +85°C 36 Thin QFN-EP** 4.096 4.75 to 5.25

10

8

4

4

MAX1043BETX* -40°C to +85°C 36 Thin QFN-EP** 2.5

*Future product—contact factory for availability.

**EP = Exposed pad.

***Number of resolution bits refers to both DAC and ADC.

2.7 to 3.6

10

8

4

4

Ordering Information/Selector Guide continued on last page.

Pin Configurations appear at end of data sheet.

________________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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