MAX1042 판매점 - (MAX1040 - MAX1049) Multichannel ADCs/DACs

MAX1042 반도체 회로 부품 판매점

(MAX1040 - MAX1049) Multichannel ADCs/DACs

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

8 40

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

2.7 to 3.6

8 40

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

8 44

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

*Future product—contact factory for availability.

**EP = Exposed pad.

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

2.5

2.7 to 3.6

8 44

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.

Free Datasheet http://www.datasheet4u.com/

10-Bit, Multichannel ADCs/DACs with FIFO,

Temperature Sensing, and GPIO Ports

ABSOLUTE MAXIMUM RATINGS

AVDD to AGND .........................................................-0.3V to +6V

DGND to AGND.....................................................-0.3V to +0.3V

DVDD to AVDD .......................................................-3.0V to +0.3V

Digital Inputs to DGND.............................................-0.3V to +6V

Digital Outputs to DGND .........................-0.3V to (DVDD + 0.3V)

Analog Inputs, Analog Outputs and REF_

to AGND ...............................................-0.3V to (AVDD + 0.3V)

Maximum Current into Any Pin (except AGND, DGND, AVDD,

DVDD, and OUT_) ...........................................................50mA

Maximum Current into OUT_.............................................100mA

Continuous Power Dissipation (TA = +70°C)

36-Pin Thin QFN (6mm x 6mm)

(derate 26.3mW/°C above +70°C) ..........................2105.3mW

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-60°C to +150°C

Junction Temperature ......................................................+150°C

Lead Temperature (soldering, 10s) .................................+300°C

Note: If the package power dissipation is not exceeded, one output at a time can be shorted to AVDD, DVDD, AGND, or DGND

indefinitely.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(AVDD = DVDD = 2.7V to 3.6V (MAX1041/MAX1043/MAX1047/MAX1049), external reference VREF = 2.5V (MAX1041/MAX1043/

MAX1047/MAX1049), AVDD = DVDD = 4.75V to 5.25V (MAX1040/MAX1042/MAX1046/MAX1048), external reference VREF = 4.096V

(MAX1040/MAX1042/MAX1046/MAX1048), fSCLK = 4.8MHz (50% duty cycle), TA = -40°C to +85°C, unless otherwise noted. Typical

values are at AVDD = DVDD = 3V (MAX1041/MAX1043/MAX1047/MAX1049), AVDD = DVDD = 5V (MAX1040/MAX1042/

MAX1046/MAX1048), TA = +25°C. Outputs are unloaded, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

ADC

DC ACCURACY (Note 1)

Resolution

10 Bits

Integral Nonlinearity

INL

±0.5

±1.0

LSB

Differential Nonlinearity

DNL

±0.5

±1

LSB

Offset Error

±0.25 ±2.0

LSB

Gain Error

(Note 2)

±0.025 ±2.0

LSB

Gain Temperature Coefficient

±1.4

ppm/°C

Channel-to-Channel Offset

±0.1

LSB

DYNAMIC SPECIFICATIONS (10kHz sine wave input, VIN = 2.5VP-P (MAX1041/MAX1043/MAX1047/MAX1049), VIN = 4.096VP-P

(MAX1040/MAX1042/MAX1046/MAX1048), 300ksps, fSCLK = 4.8MHz)

Signal-to-Noise Plus Distortion

SINAD

61 dB

Total Harmonic Distortion

(Up to the Fifth Harmonic)

THD

-70 dBc

Spurious-Free Dynamic Range

Intermodulation Distortion

Full-Linear Bandwidth

Full-Power Bandwidth

CONVERSION RATE (Note 3)

SFDR

IMD

fIN1 = 9.9kHz, fIN2 = 10.2kHz

SINAD > 70dB

-3dB point

External reference

66 dBc

72 dBc

100 kHz

1 MHz

0.8 µs

Power-Up Time

tPU

Internal reference (Note 4)

Conversion

218 clock

cycles

2 _______________________________________________________________________________________

Free Datasheet http://www.datasheet4u.com/

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MAX1042 반도체 회로 부품 판매점

(MAX1040 - MAX1049) Multichannel ADCs/DACs

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