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MAX1474
Miniature Electronically Trimmable Capacitor

Industry's Smallest Digitally Programmable Capacitor


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Description
FULL DATA SHEET (PDF, 152kB)
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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.

Key Features   Applications/Uses
  • 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)

 
  • 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 Min. C (pF) Max. C (pF) Prog. Step (pF) Number of Program Steps Typ. Accuracy (%) Supply Voltage (V) Max. Supply Current (µA) Digital Interface RoHS Available Package Smallest Available Package (max w/pins) (mm2) Price**
    MAX1474  6.4 13.3 0.22 32 15 2.7 to 5.5 10 Pulse Increment Yes SC-70/6 5 $0.57 @ 1k
    See All Programmable Capacitors (1)
    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.

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    Document Ref.: 19-1948; Rev 1; 2001-09-07
    This page last modified: 2007-06-14



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