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MAX1474

Miniature Electronically Trimmable Capacitor

Industry's Smallest Digitally Programmable Capacitor

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Status Explanations for product status codes

Active: In Production.

Description

The MAX1474 is a fine-line (geometry) electronically trimmable 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 (see Table 1). The quartz dielectric capacitance is highly stable and exhibits a very low voltage 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.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 1 (PDF, 152kB)
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Key Features

  • 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)
 

Applications/Uses

  • Accelerometer Measurements
  • Automotive Sensors
  • Cell Phones
  • Force Sensors
  • Humidity Sensors
  • Industrial Sensor Transmitters/Transducers
  • Industrial Sensor Transmitters/Transducers
  • Mobile Radios
  • Piezoresistive Transducers
  • Temperature Sensing and Monitoring
   

Key Specifications:

Programmable Capacitors
Part Number C
(pF)
C
(pF)
Prog. Step
(pF)
Prog. Steps Accuracy
(%)
VSUPPLY
(V)
ICC
(µA)
Digital Interface Package/Pins Smallest Available Pckg.
(mm2)
Budgetary Price
min max typ max max w/pins See Notes
MAX1474  6.4 13.3 0.22 32 15 2.7 to 5.5 10 Pulse Increment
SC70/6
5.3 $5.05 @1k
See All Programmable Capacitors (1)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

MAX1474: Functional Diagram
Functional Diagram

More Information

Topmark Coding MAX1474
New Product Press Release 2001-02-05 ]

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Document Ref.: 19-1948 Rev 1; 2001-09-07
This page last modified: 2009-10-26




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