Datasheet > MAX14001

MAX14001

更新时间： 2023-12-20 18:44:34

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
34页	1469K
描述
可配置、隔离型10位ADC，用于多范围二进制输入

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中文翻译

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数据手册

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MAX14001 数据手册

EVALUATION KIT AVAILABLE

MAX14001/MAX14002

Conﬁgurable, Isolated 10-bit ADCs for

Multi-Range Binary Inputs

General Description

The MAX14001/MAX14002 are isolated, single-channel

analog-to-digital converters (ADCs) with programmable

voltage comparators and inrush current control optimized

Beneﬁts and Features

● Enables Robust Detection of Binary Inputs

• Programmable Input Bias Current Rejects Line Noise

• 3.75kV

of Isolation for 60 Seconds

RMS

• 5.5mm of Creepage and Clearance

• Group II CTI Package Material

for configurable binary input applications. 3.75kV

RMS

of integrated isolation is provided between the binary

input side (field-side) and the comparator output/SPI-side

(logic-side) of the MAX14001/MAX14002. An integrated,

isolated, DC-DC converter powers all field-side circuitry,

and this allows running field-side diagnostics even when

no input signal is present. The 20-pin SSOP package

provides 5.5mm of creepage and clearance with group II

CTI rating.

● Reduces BOM and Board Space Through High

Integration

• 10-bit, 10ksps ADC

• Binary Threshold Comparators

• Control Circuit for Driving a Depletion Mode FET

• Isolation for Both Data and DC-DC Supply

• 20-SSOP Package

These devices continually digitize the input voltage on

the field-side of an isolation barrier and transmit the data

across the isolation barrier to the logic-side of the device

where the magnitude of the input voltage is compared to

programmable thresholds. The binary comparator output

pin is high when the input voltage is above the upper

threshold and low when it is below the lower threshold.

Response time of the comparator to an input change

is less than 150µs with filtering disabled. With filtering

enabled, the comparator uses the moving average of the

last 2, 4, or 8 ADC readings. Both filtered and unfiltered

ADC readings are available through the 5MHz SPI port,

which is also used to set comparator thresholds and other

device configuration.

● Increases Equipment “Up Time” and Simplifies

System Maintenance

• Enables Field-Side Diagnostics

• Automatic Self-Diagnostics

● Provides Unparalleled Flexibility

• Programmable Upper and Lower Input Thresholds

• Programmable Inrush Current Activation Threshold,

Magnitude, and Duration

• Daisy-Chainable SPI Interface

Applications

● High-Voltage Binary Input (12V–300V)

● Distribution Automation

● Substation Automation

The MAX14001/MAX14002 control the current of a binary

input through an external, high-voltage FET. This current

cleans relay contacts and attenuates input noise.An inrush

comparatormonitoringtheADCreadingstriggerstheinrush

current, or wetting pulse. The inrush trigger threshold, cur-

rent magnitude, and current duration are all programmable

in the MAX14001 but are fixed in the MAX14002. When

the high-voltage FET is not providing inrush current, it

switches to bias mode. Bias mode places a small current

load on the binary input to attenuate capacitively coupled

noise. The level of bias current is programmable between

50µA and 3.75mA in both the MAX14001 and MAX14002.

This allows optimization of the tradeoff between noise

attenuation and power dissipation.

● Industrial Control, Multi-Range, Digital Input Modules

with Individually Isolated Inputs

Safety Regulatory Approvals

● UL According to UL1577

Ordering Information appears at end of data sheet.

19-8514; Rev 1; 8/17

12 3 4 5 6 7...34

中文翻译

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与MAX14001相关器件

型号	品牌	获取价格	描述	数据表
MAX14001AAP+	MAXIM	获取价格	Configurable, Isolated 10-bit ADCs for Multi-Range Binary Inputs
MAX14001AAP+T	MAXIM	获取价格	ADC, Proprietary Method,
MAX14002	MAXIM	获取价格	Configurable, Isolated 10-bit ADCs for Multi-Range Binary Inputs
MAX14002	ADI	获取价格	可配置、隔离型10位ADC，用于多范围二进制输入
MAX14002AAP+	MAXIM	获取价格	Configurable, Isolated 10-bit ADCs for Multi-Range Binary Inputs
MAX1400CAI	MAXIM	获取价格	%V, 18-Bit, Low-Power, Multichannel, Oversampling Sigma-Delta ADC
MAX1400CAI+	MAXIM	获取价格	ADC, Delta-Sigma, 18-Bit, 1 Func, 5 Channel, Serial Access, CMOS, PDSO28, 5.30 MM, SSOP-28
MAX1400CAI-T	MAXIM	获取价格	ADC, Delta-Sigma, 18-Bit, 1 Func, 5 Channel, Serial Access, CMOS, PDSO28, 5.30 MM, SSOP-28
MAX1400EAI	MAXIM	获取价格	%V, 18-Bit, Low-Power, Multichannel, Oversampling Sigma-Delta ADC
MAX1400EAI+T	MAXIM	获取价格	ADC, Delta-Sigma, 18-Bit, 1 Func, 5 Channel, Serial Access, CMOS, PDSO28, 5.30 MM, SSOP-28

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