MAX6603ATB+T Maxim Integrated Products, MAX6603ATB+T Datasheet

IC COND RTD-VOLT 10-TDFN

MAX6603ATB+T

Manufacturer Part Number
MAX6603ATB+T
Description
IC COND RTD-VOLT 10-TDFN
Manufacturer
Maxim Integrated Products
Type
Signal Conditionerr
Datasheet

Specifications of MAX6603ATB+T

Input Type
Voltage
Output Type
Logic
Current - Supply
5.5mA
Mounting Type
Surface Mount
Package / Case
10-TDFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Interface
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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 resis-
tors 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 ampli-
fies signals from two RTDs operating over the -40°C to
+1000°C temperature range and provides the tempera-
ture 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 ana-
log voltage outputs can be readily connected to a vari-
ety of microcontrollers.
The MAX6603 is available in a small, 10-pin TDFN-EP
package and operates over the -40°C to +125°C auto-
motive temperature range from a single +3V to +5.5V
power supply.
19-3975; Rev 0; 4/06
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Automotive Exhaust Temperature Monitoring
Engine Control Management to Meet EURO IV
Regulations
Braking Systems
Industrial Temperature Sensors
Food Transportation Monitoring Systems
Industrial Process Measurements
________________________________________________________________ Maxim Integrated Products
General Description
RTD-to-Voltage Signal Conditioner
Applications
Dual-Channel, Platinum
♦ Amplifies Pt RTD Temperature Signals
♦ ±5kV ESD Protection on RTD Inputs
♦ +16V Overvoltage Fault Protection on RTD Inputs
♦ Low RTD Excitation Current Minimizes Self-
♦ 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
Note:
ture range.
*EP = Exposed pad.
+Denotes lead-free package.
**Other base resistance values can be accommodated.
Contact the factory for more information.
MAX6603ATB+
Heating Errors
TOP VIEW
Device is specified over the -40°C to +125°C tempera-
PART
RS2+
RS1+
RS2-
RS1-
V
CC
1
2
3
4
5
3mm x 3mm x 0.8mm
+
PIN-PACKAGE
10 TDFN-EP*
Ordering Information
MAX6603
TDFN
Pin Configuration
200Ω**
10
RTD
9
8
7
6
Features
DG2
OUT2
OUT1
DG1
GND
T1033-1
CODE
PKG
1

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MAX6603ATB+T Summary of contents

Page 1

... Regulations Braking Systems Industrial Temperature Sensors Food Transportation Monitoring Systems Industrial Process Measurements ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Dual-Channel, Platinum ♦ Amplifies Pt RTD Temperature Signals ♦ ±5kV ESD Protection on RTD Inputs ♦ ...

Page 2

Dual-Channel, Platinum RTD-to-Voltage Signal Conditioner ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND, unless otherwise noted.) V ........................................................................-0.3V to +6.0V CC RS1+, RS1-, RS2+, RS2- .....................................-0.3V to +18.0V OUT1, OUT2, DG1, DG2 ............................-0. Continuous Power Dissipation (T = ...

Page 3

Dual-Channel, Platinum RTD-to-Voltage ELECTRICAL CHARACTERISTICS (continued 3.0V to 5.5V, resistor connected between RS1+ and RS1- = 560Ω, resistor connected between RS2+ and RS2- = 560Ω -40°C to +125°C, unless otherwise noted. Typical values are at ...

Page 4

Dual-Channel, Platinum RTD-to-Voltage Signal Conditioner (V = 5.0V +25°C, unless otherwise noted SUPPLY CURRENT vs. SUPPLY VOLTAGE 3 +125° +85° +25°C A 2.9 T 2.6 T ...

Page 5

Dual-Channel, Platinum RTD-to-Voltage PIN NAME 1 V Power-Supply Input. Bypass to GND with a 0.1µF capacitor as close RS2- Sense Resistor 2 Negative Input 3 RS2+ Sense Resistor 2 Positive Input 4 RS1+ Sense Resistor 1 ...

Page 6

Dual-Channel, Platinum RTD-to-Voltage Signal Conditioner 200Ω Pt RTD 1000 900 800 700 600 500 400 300 200 100 0 0 200 400 600 TEMPERATURE (°C) Figure 1. Typical 200Ω Pt RTD Representation by the Simplified Callender-Van Dusen Equation microcontrollers that ...

Page 7

Dual-Channel, Platinum RTD-to-Voltage ±5kV ESD SHORT TO BAT SHORT TO GND OPEN (16V) RTD SENSOR OPEN SHORT TO BAT SHORT TOGETHER (16V) SHORT TO GND Figure 2. The various fault conditions that cause the diagnostic output to assert low are ...

Page 8

Dual-Channel, Platinum RTD-to-Voltage Signal Conditioner Pt RTD PROBE Pt RTD PROBE Figure 3. A Typical Application Circuit with Ratiometric Output Coupled to Ratiometric Microcontroller ADC 8 _______________________________________________________________________________________ 0.1µ SRC RS1+ ESD CLAMP RS1- ESD I ...

Page 9

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 9 © 2006 Maxim Integrated Products PACKAGE VARIATIONS PKG ...

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