MAX1474AXT+

更新时间： 2024-10-03 13:10:19

品牌	Logo	应用领域
美信 - MAXIM		电容器电子
页数	文件大小	规格书
8页	139K
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MAX1474AXT+ 数据手册

19-1948; Rev 1; 3/01

Miniature Electronically Trimmable Capacitor

General Description

Features

The MAX1474 is a fine-line (geometry) electronically trim-

mable capacitor (FLECAP) programmable through a

simple digital interface. There are 32 programmable

capacitance values ranging from 6.4pF to 13.3pF in

0.22pF increments (Table 1). The quartz dielectric

capacitance is highly stable and exhibits a very low volt-

age coefficient. It has virtually no dielectric absorption

and has a very low temperature drift coefficient

(<33ppm/°C). The MAX1474 is programmed through two

digital interface pins, which have Schmidt triggers and

pulldown resistors to secure capacitance programming.

ꢀ Tiny SC70 Package (1.1mm x 2.2mm x 2.4mm)

ꢀ High-Performance Electronically Trimmable

Capacitance

ꢀ Very Simple Digital Interface

ꢀ Eliminates the Need for Mechanical Tuning

ꢀ Enabling Technology for Low-Cost Production

Line Automation

ꢀ Fully Static Operation After Programming

(No Switching)

Customization

Maxim can customize the MAX1474 for specific high-

volume applications. Contact Maxim for further informa-

tion.

Applications

Post-Trim of Low-Cost Regenerative Receivers

Ordering Information

PIN-

TOP

MARK

AAT

PART

TEMP. RANGE

Tunable RF Stages

PACKAGE

MAX1474AXT-T -40°C to +125°C 6 SC70-6

Low-Cost, Low-Temperature Drift Oscillators

Garage Door Openers

Keyless Entry

Functional Diagram

Industrial Wireless Control

Capacitive Sensor Trimming

RFID Tags

0.2pF

0.4pF

6pF

Pin Configuration

0.8pF

1.6pF

TOP VIEW

MAX1474

3.2pF

DAT

LOGIC INTERFACE

DAT

SC70

________________________________________________________________ Maxim Integrated Products

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.

12 3 4 5 6 7 8

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