MAX6603ATB+

MAX6603ATB+ Datasheet

MAX6603

Part	Datasheet
MAX6603ATB+	MAX6603ATB+ (pdf)

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MAX6603 EVALUATION KIT AVAILABLE Dual-Channel, Platinum RTD-to-Voltage Signal Conditioner The MAX6603 dual-channel, platinum RTD-to-voltage signal conditioner excites and amplifies the signal from two external 200Ω 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 analog-to-digital converters ADCs . External precision resistors and calibration processes are not needed. The MAX6603 provides the necessary signal-conditioning 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. ●● Engine Control Management to Meet EURO IV Regulations ●● Braking Systems ●● Industrial Temperature Sensors ●● Food Transportation Monitoring Systems ●● Industrial Process Measurements ●● Amplifies Pt RTD Temperature Signals ●● ±5kV ESD Protection on RTD Inputs ●● +16V Overvoltage Fault Protection on RTD Inputs ●● Low RTD Excitation Current Minimizes Self-Heating 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 Ordering Information PART PIN-PACKAGE PKG CODE MAX6603ATB+ 10 TDFN-EP* T1033-1 Note Device is specified over the -40°C to +125°C temperature range. EP = Exposed pad. +Denotes a lead Pb -free/RoHS-compliant package. *Other base resistance values can be accommodated. Contact the factory for more information. Pin Configuration TOP VIEW VCC 1 + RS2- 2 RS2+ 3 MAX6603 RS1+ 4 RS1- 5 10 DG2 9 OUT2 8 OUT1 7 DG1 6 GND TDFN 3mm x 3mm x 0.8mm MAX6603 Dual-Channel, Platinum RTD-to-Voltage Signal Conditioner Absolute Maximum Ratings All voltages referenced to GND, unless otherwise noted. to +6.0V RS1+, RS1-, RS2+, to +18.0V OUT1, OUT2, DG1, DG2.......................... -0.3V to VCC + 0.3V Continuous Power Dissipation TA = +70°C 10-Pin TDFN Single-Layer Board derate mW/°C above +70°C .........................1481.5mW 10-Pin TDFN Multilayer Board derate mW/°C above +70°C .........................1951.2mW ESD Protection OUT1, OUT2, DG1, DG2, Human Body ESD Protection RS1+, RS2+, RS1-, RS2-, VCC, GND, Human Body Operating Temperature Range.......................... -40°C to +125°C Junction Storage Temperature Range............................. -65°C to +150°C Lead Temperature soldering, 10s .................................. +300°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics VCC = 3.0V to 5.5V, resistor connected between RS1+ and RS1- = 560Ω, resistor connected between RS2+ and RS2- = 560Ω, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VCC = 5.0V, RL = 47kΩ between OUT_ and GND, TA = +25°C. Note 1 PARAMETER Supply Voltage Input Over Voltage SYMBOL VCC VRS CONDITIONS RS1+, RS1-, RS2+, RS2- Supply Current CURRENT SOURCES Excitation Current Excitation-Current Temperature Coefficient IEXC TCIEXC Minimum RS_- Voltage VRS_- Maximum RS_+ Voltage VRS_+ Supply Ratiometric IRATIO For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values min and max limits shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. 2014 Maxim Integrated Products, Inc. 9

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MAX6603

EVALUATION KIT AVAILABLE

Dual-Channel, Platinum RTD-to-Voltage Signal Conditioner

The MAX6603 dual-channel, platinum RTD-to-voltage signal conditioner excites and amplifies the signal from two external 200Ω 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 analog-to-digital converters ADCs . External precision resistors and calibration processes are not needed. The MAX6603 provides the necessary signal-conditioning 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.
●● Engine Control Management to Meet EURO IV Regulations
●● Braking Systems ●● Industrial Temperature Sensors ●● Food Transportation Monitoring Systems ●● Industrial Process Measurements
●● Amplifies Pt RTD Temperature Signals ●● ±5kV ESD Protection on RTD Inputs ●● +16V Overvoltage Fault Protection on RTD Inputs ●● Low RTD Excitation Current Minimizes Self-Heating

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
Ordering Information

PART

PIN-PACKAGE

PKG CODE

MAX6603ATB+ 10 TDFN-EP*

T1033-1

Note Device is specified over the -40°C to +125°C temperature range. *EP = Exposed pad. +Denotes a lead Pb -free/RoHS-compliant package. **Other base resistance values can be accommodated. Contact the factory for more information.

Pin Configuration

TOP VIEW

VCC 1 +

RS2- 2 RS2+ 3

MAX6603

RS1+ 4

RS1- 5
10 DG2 9 OUT2 8 OUT1 7 DG1 6 GND

TDFN 3mm x 3mm x 0.8mm

MAX6603

Dual-Channel, Platinum RTD-to-Voltage Signal Conditioner

Absolute Maximum Ratings

All voltages referenced to GND, unless otherwise noted. to +6.0V RS1+, RS1-, RS2+, to +18.0V OUT1, OUT2, DG1, DG2.......................... -0.3V to VCC + 0.3V Continuous Power Dissipation TA = +70°C
10-Pin TDFN Single-Layer Board derate mW/°C above +70°C .........................1481.5mW 10-Pin TDFN Multilayer Board derate mW/°C above +70°C .........................1951.2mW

ESD Protection OUT1, OUT2, DG1, DG2, Human Body

ESD Protection RS1+, RS2+, RS1-, RS2-, VCC, GND, Human Body

Operating Temperature Range.......................... -40°C to +125°C Junction Storage Temperature Range............................. -65°C to +150°C Lead Temperature soldering, 10s .................................. +300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Electrical Characteristics

VCC = 3.0V to 5.5V, resistor connected between RS1+ and RS1- = 560Ω, resistor connected between RS2+ and RS2- = 560Ω, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VCC = 5.0V, RL = 47kΩ between OUT_ and GND, TA = +25°C. Note 1

PARAMETER Supply Voltage Input Over Voltage

SYMBOL VCC VRS

CONDITIONS RS1+, RS1-, RS2+, RS2-

Supply Current

CURRENT SOURCES

Excitation Current

Excitation-Current Temperature Coefficient

IEXC TCIEXC

Minimum RS_- Voltage

VRS_-

Maximum RS_+ Voltage

VRS_+

Supply Ratiometric

IRATIO
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at

Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values min and max limits shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.

Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2014 Maxim Integrated Products, Inc. 9

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MAX6603ATB+ Datasheet file may be downloaded here without warranties.

Datasheet ID: MAX6603ATB+ 647378