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MAX6603

Maxim Integrated Products
Part Number MAX6603
Manufacturer Maxim Integrated Products
Description Platinum RTD-to-Voltage Signal Conditioner
Published May 31, 2010
Detailed Description 19-3975; Rev 0; 4/06 Dual-Channel, Platinum RTD-to-Voltage Signal Conditioner General Description The MAX6603 dual-chan...
Datasheet PDF File MAX6603 PDF File

MAX6603
MAX6603

Overview
19-3975; Rev 0; 4/06 Dual-Channel, Platinum RTD-to-Voltage Signal Conditioner General Description The MAX6603 dual-channel, platinum RTD-to-voltage signal conditioner excites and amplifies the signal from two external 200 Ω platinum-resistive temperature devices (Pt RTD) to achieve high-voltage, level-filtered signals for temperature measurements.
The MAX6603 provides a direct ratiometric output voltage to simplify the interface to microcontrollers with integrated analogto-digital converters (ADCs).
External precision resistors and calibration processes are not needed.
The MAX6603 provides the necessary signal-conditioning www.
DataSheet4U.
com functions, including ratiometric excitation current, amplification, buffered voltage outputs, diagnostic fault detections, and input protection.
The MAX6603 amplifies signals from two RTDs operating over the -40°C to +1000°C temperature range and provides the temperature information as two independent analog voltages.
The MAX6603 features a ±6°C (max) accuracy over the +400°C to +600°C temperature range.
The MAX6603 has overvoltage protection up to +16V on RTD inputs, and ±5kV electrostatic discharge (ESD) protection at RTD input pins for reliable operation where RTD temperature-sensing probes are used.
The MAX6603 monitors the RTD for faults and asserts the respective DG output low for fault conditions.
The analog voltage outputs can be readily connected to a variety of microcontrollers.
The MAX6603 is available in a small, 10-pin TDFN-EP package and operates over the -40°C to +125°C automotive temperature range from a single +3V to +5.
5V power supply.
♦ ±5kV ESD Protection on RTD Inputs ♦ +16V Overvoltage Fault Protection on RTD Inputs ♦ Low RTD Excitation Current Minimizes SelfHeating Errors ♦ Small, 10-Pin TDFN Package ♦ Fully Ratiometric Operation ♦ No Calibration Required for Standard RTDs ♦ RTD Diagnostic Check ♦ High Accuracy: ±6°C (max) from +400°C to +600°C Features ♦ Amplifies Pt RTD Temperature Signals MAX6603 O...


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