Datasheet > DS8500_V01

DS8500_V01

更新时间： 2024-11-25 02:52:59

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
7页	474K
描述
HART Modem

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中文翻译

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数据手册

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DS8500_V01 数据手册

EVALUATION KIT AVAILABLE

Click here for production status of speciﬁc part numbers.

DS8500

HART Modem

General Description

Beneﬁts and Features

● Single-Chip, Half-Duplex Modem Overlays 1200bps

FSK Digital Communication on Top of Installed 4mA–

20mA Current Loop Infrastructure

The DS8500 is a single-chip modem with Highway

Addressable Remote Transducer (HART) capabilities.

It has been fully tested and verified and has received a

HART Certificate of Registration. The device integrates

● Digital Signal Processing Provides Reliable Input

the modulation and demodulation of the 1200Hz/2200Hz

FSK signal, has very low power consumption, and needs

only a few external components due to the integrated

digital signal processing. The input signal is sampled by

an analog-to-digital converter (ADC), followed by a digi-

tal filter/demodulator. This architecture ensures reliable

signal detection in noisy environments. The output digital-

to-analog converter (DAC) generates a sine wave and

provides a clean signal with phase-continuous switching

between 1200Hz and 2200Hz. Low power is achieved

by disabling the receive circuits during transmit and vice

versa. The DS8500 is ideal for low-power process control

transmitters.

Signal Detection in Noisy Conditions

● Standard Component 3.6864MHz Crystal Reduces

System Cost

● Fully Tested and Verified as a HART-Registered

Modem IC

● Integrated Solution Requires Minimal Power and

Space

• 2.7V to 3.6V Operating Voltage

• 285μA (max) Current Consumption

• Space-Saving, 5mm x 5mm x 0.8mm, 20-Pin

TQFN Package

• Few External Components Required

Applications

Ordering Information

● 4mA–20mA Loop-Powered Transmitters for

Temperature, Pressure, Flow, and Level

Measurement

● HART Multiplexers

● HART Modem Interface Connectivity

PART

TEMP RANGE

PIN-PACKAGE

DS8500-JND+

-40°C to +85°C

20 TQFN-EP*

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

*EP = Exposed pad.

Pin Conﬁguration

TOP VIEW

DGND 16

MODE 17

DGND 18

D_OUT 19

D_IN 20

10 XCEN

DGND

XTAL2

XTAL1

RTS

DS8500

*EP

ꢇ

HART is a registered trademark of the HART Communication

Foundation. Membership in the HART Communication

Foundation does not guarantee a product has been verified or

received a HART Registration Certificate.

THꢀꢁ ꢂꢃꢁ

ꢄ5mm ꢅ 5mmꢆ

*EXPOSED PAD.

19-7581; Rev 3; 2/20

12 3 4 5 6 7

中文翻译

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