MAX11040

更新时间： 2024-10-01 05:48:59

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
31页	353K
描述
24-Bit, 4-Channel, Simultaneous-Sampling, Cascadable, Sigma-Delta ADC

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MAX11040 数据手册

19-4302; Rev 0; 5/09

24-Bit, 4-Channel, Simultaneous-Sampling,

Cascadable, Sigma-Delta ADC

MAX140

General Description

Features

♦ Four Fully Differential Simultaneously Sampled

The MAX11040 is a 24-bit, 4-channel, simultaneous-

sampling, sigma-delta analog-to-digital converter

(ADC). The device allows simultaneous sampling of as

many as 32 channels using a built-in cascade feature

to synchronize as many as eight devices. The serial

interface of the MAX11040 allows reading data from all

the cascaded devices using a single command. Four

modulators simultaneously convert each fully differen-

tial analog input with a programmable data output rate

ranging from 0.25ksps to 64ksps. The device achieves

106dB SNR at 16ksps and 117dB SNR at 1ksps. The

MAX11040 operates from a single +3V supply. The dif-

ferential analog input range is 2.2V when using the

internal reference, an external reference is optional.

Each input is overvoltage protected up to 6V without

damage. The device uses an internal crystal oscillator

or an external source for clock.

Channels

♦ Cascadable for Up to 32 Channels of

Simultaneous Sampling

♦ 106dB SNR at 16ksps

♦ 117dB SNR at 1ksps

♦ 0.25% Error Over a 1000:1 Dynamic Range,

Processed Over 16.7ms

♦

2.2ꢀ FullꢁScale ꢂnput Range

6ꢀ Overvoltage Protected ꢂnputs

♦ ꢂnternal Crystal Oscillator

♦ 2.5ꢀ, 50ppm/°C ꢂnternal Reference or External

Reference

♦ Programmable Output Data Rate

0.25ksps to 64ksps Range

0.065% Resolution

♦ Programmable Sampling Phase

0 to 333µs Delay in 1.33µs Steps

The MAX11040 is compatible with SPI™, QSPI™,

MICROWIRE™, and DSP-compatible 4-wire serial inter-

faces. An on-board interface logic allows one serial inter-

face (with a single chip select) to control up to eight

cascaded devices or 32 simultaneous sampling analog

input channels.

♦ SPꢂꢁ/QSPꢂꢁ/MꢂCROWꢂREꢁ/DSPꢁCompatible 4ꢁWire

Serial ꢂnterface

♦ Cascadable ꢂnterface Allows Control of Up to

Eight Devices with a Single CS Signal

♦ 3.0ꢀ to 3.6ꢀ Analog Supply ꢀoltage

The MAX11040 is ideally suited for power-management

systems. Each channel includes an adjustable sam-

pling phase enabling internal compensation for phase

shift due to external dividers, transformers, or filters at

the inputs. The output data rate is adjustable with a

0.065% resolution (at 16ksps or below) to track the

varying frequency of a periodic input. A SYNC input

allows periodic alignment of the conversion timing of

multiple devices with a remote timing source.

♦ 2.7ꢀ to ꢀ

Digital Supply ꢀoltage

AꢀDD

♦ 38ꢁPin TSSOP Package

Functional Diagram

OVRFLW FAULT

The MAX11040 is available in a 38-pin TSSOP package

specified over the -40°C to +105°C industrial tempera-

ture range.

AIN0+

AIN0-

SYNC

24-BIT

ADC

DIGITAL

FILTER

DRDYIN

REF0

AIN1+

AIN1-

Applications

Power Protection Relay Equipment

Multiphase Power Systems

DRDYOUT

24-BIT

ADC

DIGITAL

FILTER

REGISTERS AND

DIGITAL

CONTROL

CASCIN

SERIAL

INTERFACE

CASCOUT

REF1

AIN2+

24-BIT

ADC

DIGITAL

FILTER

AIN2-

SCLK

Industrial Data-Acquisition Systems

Medical Instrumentation

REF2

AIN3+

DIN

24-BIT

ADC

DIGITAL

FILTER

AIN3-

REF3

DOUT

Ordering Information

MAX11040

PART

TEMP RANGE

PꢂNꢁPACKAGE

2.5V

REFERENCE

CRYSTAL

OSCILLATOR

REFIO

MAX11040GUU+

-40°C to +105°C

38 TSSOP

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

AGND

XIN

XOUT

CLKOUT

DGND

MICROWIRE is a trademark of National Semiconductor Corp.

SPI/QSPI are trademarks of Motorola Inc.

Pin Configuration appears at end of data sheet.

________________________________________________________________ Maxim ꢂntegrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1ꢁ888ꢁ629ꢁ4642,

or visit Maxim’s website at www.maximꢁic.com.

12 3 4 5 6 7...31

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与MAX11040相关器件

型号	品牌	获取价格	描述	数据表
MAX11040_10	MAXIM	获取价格	24-Bit, 4-Channel, Simultaneous-Sampling,Cascadable,Sigma-Delta ADC
MAX11040DB	MAXIM	获取价格	MAX11040 Evaluation Kit/Daughterboard
MAX11040DBEVKIT+	MAXIM	获取价格	MAX11040 Evaluation Kit/Daughterboard
MAX11040EVKIT+	MAXIM	获取价格	MAX11040 Evaluation Kit/Daughterboard
MAX11040GUU+	MAXIM	获取价格	24-Bit, 4-Channel, Simultaneous-Sampling, Cascadable, Sigma-Delta ADC
MAX11040GUU+T	MAXIM	获取价格	A/D Converter, 24-Bit, 4 Func, BICMOS, PDSO38
MAX11040K	MAXIM	获取价格	24-/16-Bit, 4-Channel, Simultaneous-Sampling, Cascadable, Sigma-Delta ADCs
MAX11040K	ADI	获取价格	24/16位、4通道、同时采样、可级联的Σ-Δ ADC
MAX11040K_1111	MAXIM	获取价格	24-/16-Bit, 4-Channel, Simultaneous-Sampling, Cascadable, Sigma-Delta ADCs
MAX11040K_12	MAXIM	获取价格	MAX11040K Evaluation Kit/Daughterboard

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