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General Description

The MAX6613 is a low-power precision analog output

temperature sensor in a tiny 5-pin SC70 package. The

MAX6613 operates over a 1.8V to 5.5V supply voltage

range, with a typical current consumption of only 7.5µA.

It is particularly well suited for portable applications

where minimizing battery cost and maximizing useful

battery life are crucial.

The MAX6613 provides an analog voltage output pro-

portional to temperature. Accuracy is ±4.0°C (max)

over a range of T

= 0°C to +50°C and ±4.4°C (max)

from T

= -20°C to +80°C. Self-heating effects are neg-

ligible due to the low current consumption of the part.

Unlike many analog temperature sensors, the MAX6613

is stable with any capacitive load from 0pF to 1000pF,

providing broad flexibility in board-level design.

The operating temperature range varies with the volt-

age supply. The MAX6613 can be used over a -55°C to

+130°C range with a 2.5V to 5.5V supply voltage. For

applications with a supply voltage of 1.8V, the

MAX6613 can be used over a +25°C to +130°C tem-

perature range.

Applications

Features

♦ 1.8V to 5.5V Supply Voltage

♦ 4.0°C Accuracy

♦ Low Supply Consumption, 7.5µA (typ)

♦ -55°C to +130°C Temperature Range

♦ SC70 Package

♦ Pin Compatible to LM20

MAX6613

Low-Voltage Analog Temperature

Sensor in an SC70 Package

________________________________________________________________

Maxim Integrated Products

19-2477; Rev 3; 12/10

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

PART TEMP RANGE

PIN-

PACKAGE

TOP

MARK

MAX6613MXK+T -55°C to +130°C 5 SC70-5 ADJ

MAX6613MXK/V+T -55°C to +130°C 5 SC70-5 ADJ

GND

VOUT

100pF

0.1μF

MICROCONTROLLER

GND

ADC IN

GND

MAX6613

Typical Application Circuit

GND

OUT

15GNDN.C.

MAX6613

SC70

TOP VIEW

Pin Configuration

Cellular Phones

GPS Equipment

Medical Instruments

Battery Management

Appliances

Disk Drives

Printers

Fax Machines

HVAC

Denotes a lead(Pb)-free/RoHS-compliant package.

/V denotes an automotive qualified part.

Summary of content (6 pages)

PAGE 1
9-2477; Rev 3; 12/10 Low-Voltage Analog Temperature Sensor in an SC70 Package The MAX6613 is a low-power precision analog output temperature sensor in a tiny 5-pin SC70 package. The MAX6613 operates over a 1.8V to 5.5V supply voltage range, with a typical current consumption of only 7.5µA. It is particularly well suited for portable applications where minimizing battery cost and maximizing useful battery life are crucial. The MAX6613 provides an analog voltage output proportional to temperature.
PAGE 2
MAX6613 Low-Voltage Analog Temperature Sensor in an SC70 Package ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND, unless otherwise noted.) VCC to GND ..............................................................-0.3V to +6V All Other Pins to GND.................................-0.3V to (VCC + 0.3V) OUT Short to GND......................................................Continuous Output Current ....................................................-1mA to +50mA ESD Protection (Human Body Model)......
PAGE 3
Low-Voltage Analog Temperature Sensor in an SC70 Package OUTPUT VOLTAGE vs. SUPPLY VOLTAGE MAX6613 toc03 MAX6613 toc02 8 7 6 5 4 3 1 0 0 1.0 2.0 3.0 4.0 5.0 6.0 0 1.0 SUPPLY VOLTAGE (V) SUPPLY CURRENT vs. TEMPERATURE 2.0 3.0 4.0 5.0 6.0 SUPPLY VOLTAGE (V) STEP RESPONSE FROM +25°C TO +125°C MAX6613 toc05 MAX6613 toc04 10.0 9.5 9.0 8.0 9 2 TEMPERATURE (°C) 8.5 SUPPLY CURRENT vs. SUPPLY VOLTAGE 10 SUPPLY CURRENT (μA) OUTPUT VOLTAGE (V) MAX6613 toc01 1.510 1.508 1.506 1.504 1.
PAGE 4
MAX6613 Low-Voltage Analog Temperature Sensor in an SC70 Package Table 1. Linear and Quadratic Output Equation PARAMETER SYMBOL Temperature Error Based on: OUT = 1.8639 - 0.0115 x Temp (Note 4) Temperature Error Based on: OUT = 1.8639 - 0.0115 x Temp 0.00000388 x Temp2 (Note 4) CONDITIONS MIN TYP VCC = 2.7V, TA = -55°C 0.6 7.9 VCC = 2.7V, TA = -20°C -0.4 +5.8 VCC = 2.7V, TA = 0°C -0.9 +4.5 VCC = 2.7V, TA = +50°C -2.6 +3.0 VCC = 2.7V, TA = +85°C -3.6 +3.5 VCC = 2.7V, TA = +100°C -4.
PAGE 5
Low-Voltage Analog Temperature Sensor in an SC70 Package Sensing Circuit Board and Ambient Temperature A temperature sensor IC like the MAX6613 that senses its own die temperature must be mounted on, or close to, the object whose temperature it is intended to measure. Because there is a good thermal path between the package’s metal lead and the IC die, the MAX6613 can accurately measure the temperature of the circuit board to which it is soldered.
PAGE 6
MAX6613 Low-Voltage Analog Temperature Sensor in an SC70 Package Revision History REVISION NUMBER REVISION DATE 0 5/02 1 11/03 2 1/06 3 12/10 DESCRIPTION PAGES CHANGED Initial release — Fix error in equation 4 Update spec in table 2 Add lead-free and automotive part, style edits 1, 2, 3, 5, 6 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.