MAX1057BETM datasheet(1/47 Pages) MAXIM

Part #	MAX1057BETM

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

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Manufacturer	MAXIM [Maxim Integrated Products]

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General Description

The MAX1020–MAX1023/MAX1057/MAX1058 integrate a

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

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

single IC. These devices also include a temperature sen-

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

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

serial interface. The ADC is available in 8/12/16 input-

channel versions. The octal 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 the DAC allow the use of an internal refer-

ence, 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 con-

sumption and processor requirements. The low glitch

energy (4nV•s) and low digital feedthrough (0.5nV•s) of

the integrated octal 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 (MAX1021/MAX1023/MAX1057)

and from +4.75V to +5.25V (MAX1020/MAX1022/

MAX1058). The devices consume 2.5mA at 300ksps

throughput, only 22µA at 1ksps throughput, and under

0.2µA in the shutdown mode. The MAX1057/MAX1058

feature 12 GPIOs, while the MAX1020/MAX1021 offer 4

GPIOs that can be configured as inputs or outputs.

The MAX1057/MAX1058 are available in 48-pin thin QFN

packages. The MAX1020–MAX1023 are available in 36-

pin thin QFN packages. All devices are specified over the

-40°C to +85°C temperature range.

Applications

Controls for Optical Components

Base-Station Control Loops

System Supervision and Control

Data-Acquisition Systems

Features

♦ 10-Bit, 300ksps ADC

Analog Multiplexer with True-Differential

Track/Hold (T/H)

16 Single-Ended Channels or 8 Differential

Channels (Unipolar or Bipolar)

12 Single-Ended Channels or 6 Differential

Channels (Unipolar or Bipolar)

8 Single-Ended Channels or 4 Differential

Channels (Unipolar or Bipolar)

Excellent Accuracy: ±0.5 LSB INL, ±0.5 LSB DNL

♦ 10-Bit, Octal, 2µs Settling DAC

Ultra-Low Glitch Energy (4nV•s)

Power-Up Options from Zero Scale or Full Scale

Excellent Accuracy: ±1 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)

10-Bit, Multichannel ADCs/DACs with FIFO,

Temperature Sensing, and GPIO Ports

________________________________________________________________ Maxim Integrated Products

1

Ordering Information/Selector Guide

19-3280; Rev 2; 8/04

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.

EVALUATION

KIT

AVAILABLE

Pin Configurations appear at end of data sheet.

PART

TEMP RANGE

PIN-PACKAGE

REF

VOLTAGE

(V)

ANALOG

SUPPLY

VOLTAGE (V)

RESOLUTION

BITS***

ADC

CHANNELS

DAC

CHANNELS

GPIOs

MAX1020BETX

-40

°C to +85°C 36 Thin QFN-EP**

4.096

4.75 to 5.25

10

8

4

MAX1021BETX* -40

°C to +85°C 36 Thin QFN-EP**

2.5

2.7 to 3.6

10

8

4

MAX1022BETX* -40

°C to +85°C 36 Thin QFN-EP**

4.096

4.75 to 5.25

10

12

8

0

MAX1023BETX* -40

°C to +85°C 36 Thin QFN-EP**

2.5

2.7 to 3.6

10

12

8

0

MAX1057BETM

-40

°C to +85°C 48 Thin QFN-EP**

2.5

2.7 to 3.6

10

16

8

12

MAX1058BETM

-40

°C to +85°C 48 Thin QFN-EP**

4.096

4.75 to 5.25

10

16

8

12

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.

*Future product—contact factory for availability.

**EP = Exposed pad.

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

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