Datasheet > MAX22005ALM+

MAX22005ALM+

更新时间： 2024-11-17 02:52:27

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描述
12-Channel Factory-Calibrated Configurable Industrial-Analog Input

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MAX22005

12-Channel Factory-Calibrated

Configurable Industrial-Analog Input

General Description

Benefits and Features

The MAX22005 is a twelve-channel industrial-grade ana-

log input voltage-mode device that can also be configured

as analog-input current-mode device using an external

precision resistor per channel. It can also operate as con-

figurable analog-input using an external precision resistor

and low-cost switch per channel. Input channels can be

used as twelve single-ended inputs, or six differential in-

puts, or up to eight multichannel configurable differential

inputs. In total, the device supports up to 26 different con-

figurations.

● Enables More Robust and Reliable Systems

• ±36V High-Voltage Protection for All Input Ports

• 2kV HBM ESD Protection of All Pins

• ±2kV Surge Protection (with External 5kΩ Resistor)

• CRC Detection for Robust Serial Communication

• Watchdog Timer

● Software Configurability

• ±12.5V Analog Input-Voltage Mode

• ±25mA Analog Input-Current Mode Using External

Sense Resistor

The MAX22005 features an integrated 24-bit delta-sigma

ADC that is shared between all channels. The ADC can

be used with either an integrated 5ppm/°C precision refer-

ence or an external reference. Standard industrial analog

input voltage ranges are converted to the ADC input volt-

age range using high-voltage, zero-drift input amplifiers.

All input ports are robustly protected up to ±36V reverse

polarity and ±2kV surge pulses without the need of TVS

diodes.

• Configurable Inputs Using External Sense Resistor

and Low-Cost Switches

● Best-in-Class System Accuracy

• 0.02% FSR at 25°C Factory Calibrated

• 0.05% FSR over ±50°C from 25°C Factory

Calibration

• Maximum of 30nA Input Leakage

• 5ppm/°C Internal Reference

● Additional Features

Eight general-purpose digital I/O (GPIO) ports are avail-

able for common use, or they can be used to control ex-

ternal switches for configurable inputs.

• Internal or External ADC Reference

• Eight GPIO Ports

• 48.5mW Low Power Dissipation with ±5V Supply

• 30MHz SPI/QSPI/DSP-Compatible Serial Interface

The MAX22005 is factory calibrated with best-in-class sys-

tem performance of less than 0.05% FSR Total-Unadjust-

ed-Error (TUE) over temperature.

● Operating Temperature -40°C to +125°C

● 7.5mm × 7mm 48-pin LGA package

The host communicates with the MAX22005 through a

high-speed 30MHz SPI bus for all configurations and infor-

mation management, as well as for acquiring conversion

results. An optional 8-bit CRC enhances the reliability of

the SPI interface, protecting against all 8-bit bursts, as well

as all double-bit errors.

Ordering Information appear at end of datasheet.

The MAX22005 operates from 2.7V to 3.6V analog and

digital supplies, and up to ±24V high-voltage supplies.

The MAX22005 is available in 48-pin LGA package and

operates over the -40°C to +125°C industrial temperature

range.

Applications

● Programmable Logic Controllers (PLC)

● Programmable Automation Controllers (PAC)

● Distributed Control Systems (DCS)

19-101026; Rev 0; 4/21

12 3 4 5 6 7...47

中文翻译

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与MAX22005ALM+相关器件

型号	品牌	获取价格	描述	数据表
MAX22005ALM+T	MAXIM	获取价格	12-Channel Factory-Calibrated Configurable Industrial-Analog Input
MAX22005EVKIT	MAXIM	获取价格	Access to Eight GPIO Channels
MAX22007	ADI	获取价格	集成基准电压源的四通道12位可配置模拟输出器件
MAX2202	MAXIM	获取价格	RMS Power Detector
MAX22025	ADI	获取价格	小尺寸、隔离型、半双工RS-485/RS-422收发器，带有AutoDirection (
MAX22025F	ADI	获取价格	小尺寸、隔离型、半双工RS-485/RS-422收发器，带有AutoDirection (
MAX22026	ADI	获取价格	小尺寸、隔离型、半双工RS-485/RS-422收发器，带有AutoDirection (
MAX22026F	ADI	获取价格	小尺寸、隔离型、半双工RS-485/RS-422收发器，带有AutoDirection (
MAX22027	ADI	获取价格	小尺寸、隔离型、半双工RS-485/RS-422收发器，带有AutoDirection (
MAX22027F	ADI	获取价格	小尺寸、隔离型、半双工RS-485/RS-422收发器，带有AutoDirection (

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