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MAX1474
Miniature Electronically Trimmable Capacitor
Industry's Smallest Digitally Programmable Capacitor
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Status
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.
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Data Sheet
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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)
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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
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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 |
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5.3 |
$1.14 @1k |
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See All Programmable Capacitors (1)
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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.
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Diagram
Functional Diagram
Application Notes
Reliability Reports
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX1474AXT+
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Active |
SC70;6 pin;5.3 mm²
Outline Drawing:21-0077 (PDF)
Land Pattern: 90-0189 (PDF)
Use pkgcode/variation: X6SN+1*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1474AXT+T
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Active |
SC70;6 pin;5.3 mm²
Outline Drawing:21-0077 (PDF)
Land Pattern: 90-0189 (PDF)
Use pkgcode/variation: X6SN+1*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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More Information
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Information Index
Document Ref.: 19-1948
Rev 1;
2001-09-07
This page last modified: 2009-10-26
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