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RTD analog conditioner offers 5kV ESD protection

Posted: 17 May 2006 ?? ?Print Version ?Bookmark and Share

Keywords:MAX6603? analog conditioner? resistive temperature devices? RTD? Maxim?

Maxim Integrated Products introduced the MAX6603, a small analog conditioner for interfacing resistive temperature devices (RTDs) to microcontrollers. It amplifies platinum RTD signals for ADC conversion and provides up to 5kV ESD protection. The MAX6603 is targeted for next-generation automotive engine-control systems that use exhaust temperature monitoring for EURO-IV emissions compliance.

The MAX6603 replaces expensive discrete solutions, reduces board space and protects sensitive microcontroller inputs, said Maxim. External RTD faults and system diagnostic status are indicated by a simple digital interface pin. The MA6603 has low RD excitation current, which is said to minimize self-heating errors and does not require calibration.

Housed in a small 10-pin TDFN, the MAX6603 offers 6C (max) accuracy from 400C to 600C with no calibration required. It operates from a 3V to 5.5V supply voltage range and over the -40C to 125C automotive temperature range. Pricing begins at $1.50 in quantities of 1,000 and up.

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