General 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 (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.

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
Post-Trim of Low-Cost Regenerative Receivers
Tunable RF Stages
Low-Cost, Low-Temperature Drift Oscillators
Garage Door Openers
Keyless Entry
Industrial Wireless Control
Capacitive Sensor Trimming
RFID Tags