MAX6613_10 [MAXIM]
Low-Voltage Analog Temperature Sensor in an SC70 Package; 低电压，模拟温度传感器，SC70封装
| 型号： | MAX6613_10 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Low-Voltage Analog Temperature Sensor in an SC70 Package |
| 文件： | 总6页 (文件大小：110K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-2±77; Rev 3; 12/10
Low-Voltage Analog Temperature
Sensor in an SC70 Package
MAX613
General Description
Features
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.
♦ 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
The MAX6613 provides an analog voltage output pro-
portional to temperature. Accuracy is ±±.0ꢀC ꢁmaxꢂ
♦ Pin Compatible to LM20
over a range of T = 0ꢀC to +50ꢀC and ±±.±ꢀC ꢁmaxꢂ
A
from T = -20ꢀC to +80ꢀC. Self-heating effects are neg-
A
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 -55ꢀC to
+130ꢀC 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 +25ꢀC to +130ꢀC tem-
perature range.
Ordering Information
PIN-
TOP
PART
TEMP RANGE
PACKAGE
MARK
MAX6613MXK+T
-55°C to +130°C 5 SC70-5
ADJ
ADJ
Applications
MAX6613MXK/V+T -55°C to +130°C 5 SC70-5
Cellular Phones
GPS Equipment
Medical Instruments
Battery Management
Appliances
Disk Drives
Printers
+Denotes a leadꢁPbꢂ-free/RoHS-compliant package.
/V denotes an automotive qualified part.
Fax Machines
HVAC
Typical Application Circuit
Pin Configuration
V
CC
TOP VIEW
V
CC
+
MICROCONTROLLER
ADC IN
V
CC
N.C.
GND
OUT
1
2
3
5
4
GND
VOUT
0.1μF
MAX6613
MAX6613
GND
GND
100pF
V
CC
GND
SC70
________________________________________________________________ Maxim Integrated Products
1
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.
Low-Voltage Analog Temperature
Sensor in an SC70 Package
ABSOLUTE MAXIMUM RATINGS
ꢁAll voltages referenced to GND, unless otherwise noted.ꢂ
Continuous Power Dissipation ꢁT = +70ꢀCꢂ
A
V
to GND..............................................................-0.3V to +6V
5-Pin SC70 ꢁderate 3.1mW/ꢀC above +70ꢀCꢂ...........2±6.9mW
CC
All Other Pins to GND.................................-0.3V to ꢁV
+ 0.3Vꢂ
Operating Temperature Range .........................-55°C to +130°C
Junction Temperature......................................................+150ꢀC
Storage Temperature Range.............................-65ꢀC to +150ꢀC
Lead Temperature ꢁsoldering 10sꢂ ..................................+300ꢀC
Soldering Temperature ꢁreflowꢂ .......................................+260ꢀC
CC
OUT Short to GND......................................................Continuous
Output Current ....................................................-1mA to +50mA
ESD Protection ꢁHuman Body Modelꢂ................................2000V
MAX613
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.
DC ELECTRICAL CHARACTERISTICS
ꢁV
CC
= 1.8V to 5.5V, T = -55ꢀC to +130ꢀC. Typical values are at T = +25ꢀC, unless otherwise noted.ꢂ ꢁNote 1ꢂ
A
A
PARAMETER
SYMBOL
CONDITIONS
MIN
-±
TYP
MAX
+±
UNITS
V
V
V
V
V
= 2.7V, T = 0ꢀC to +50ꢀC
A
CC
CC
CC
CC
CC
= 2.7V, T = -20ꢀC to +85ꢀC
-±.±
-±.5
-±.7
-5
+±.±
+±.5
+±.7
+5
A
Temperature-to-Voltage Error
ꢁNotes 2, 3ꢂ
= 2.7V, T = -55ꢀC to +100ꢀC
ꢀC
A
= 2.7V, T = +100ꢀC to +125ꢀC
A
= 2.7V, T = +125ꢀC to +130ꢀC
A
Output Voltage
Nonlinearity
T
T
= 0ꢀC
1.8±55
0.±
V
A
A
= -55ꢀC to +100ꢀC
%
Sensor Gain ꢁTemperature
Sensitivity or Average Slopeꢂ
T
= -20ꢀC to +100ꢀC ꢁNote 3ꢂ
-10.98 -11.23 -11.±7
mV/°C
Ω
A
0 < I < 16µA, T = -55ꢀC to +125ꢀC
160
300
-2.5
-±.8
L
A
Maximum Output Impedance
Load Regulation
0 < I < 16µA, T = +125ꢀC to +130ꢀC
L
A
0 < I < 16µA, T = -55ꢀC to +125ꢀC
L
A
mV
0 < I < 16µA, T = 125ꢀC to 130ꢀC
L
A
T
T
T
= -20ꢀC to +130ꢀC, V
≤ 5.5V
CC
1
1
3.3
±.7
A
A
A
Supply Sensitivity ꢁNote 3ꢂ
= -55ꢀC to -20ꢀC, V
= -55ꢀC to -20ꢀC, V
≤ ±.5V
mV/V
CC
CC
≤ 5.5V
1
Quiescent Current
Capacitive Load
Long-Term Stability
I
No load
7.5
13
µA
pF
Q
No sustained oscillations for capacitive
loads in this range ꢁNote ±ꢂ
0
1000
T
= room temperature for 1000hr ꢁNote ±ꢂ
0.1
15
°C
A
Temperature Coefficient of
Supply Current
nA/°C
µA
Power-Down Supply Current
V
< 0.8V
0.1
CC
Note 1: All parameters tested at room temperature. Values through temperature limits are guaranteed by design.
2
✕
✕
Note 2: V
= -0.0000022 T - 0.01105 T + 1.8±55 ꢁT = temperature in degrees Celsiusꢂ.
OUT
Note 3: Guaranteed by design to 3 sigma.
Note 4: Guaranteed by design.
2
_______________________________________________________________________________________
Low-Voltage Analog Temperature
Sensor in an SC70 Package
MAX613
Typical Operating Characteristics
ꢁR = ∞Ω, T = +30°C, unless otherwise noted.ꢂ
L
A
OUTPUT VOLTAGE vs. SUPPLY VOLTAGE
SUPPLY CURRENT vs. SUPPLY VOLTAGE
OUTPUT VOLTAGE vs. TEMPERATURE
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
1.510
1.508
1.506
1.504
1.502
1.500
1.498
1.496
1.494
1.492
1.490
1.488
1.486
1.484
1.482
1.480
10
9
8
7
6
5
4
3
2
1
0
-40 -25 -10
5
20 35 50 65 80 95 110 125
0
1.0
2.0
3.0
4.0
5.0
6.0
0
1.0
2.0
3.0
4.0
5.0
6.0
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. TEMPERATURE
STEP RESPONSE FROM +25°C TO +125°C
MAX6613 toc05
10.0
9.5
9.0
8.5
8.0
7.5
7.0
6.5
6.0
5.5
5.0
V
OUT
1.55V
V
CC
= 3.3V
V
CC
= 5V
200mV/div
V
= 2.7V
CC
430mV
-40 -25 -10
5
20 35 50 65 80 95 110 125
1s/div
TEMPERATURE (°C)
Pin Description
PIN
1
NAME
N.C.
FUNCTION
No Connection. Must be connected to ground or left unconnected.
Ground. Should be connected to pin 5. May be left unconnected, if desired.
Voltage Output
2
GND
OUT
3
4
V
Supply Voltage. Bypass to GND with a 0.1μF capacitor.
Ground
CC
5
GND
_______________________________________________________________________________________
3
Low-Voltage Analog Temperature
Sensor in an SC70 Package
Table 1. Linear and Quadratic Output Equation
PARAMETER
SYMBOL
CONDITIONS
MIN
0.6
TYP
MAX
7.9
UNITS
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
= 2.7V, T = -55ꢀC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
A
= 2.7V, T = -20ꢀC
-0.±
-0.9
-2.6
-3.6
-±.0
-±.8
-5.1
-0.±
-0.6
-0.9
-3.5
-6.1
-7.±
-10.1
-10.8
+5.8
+±.5
+3.0
+3.5
+3.7
+±.2
+±.2
+6.9
+5.7
+±.5
+2.1
+1.0
+0.±
-1.0
A
= 2.7V, T = 0ꢀC
A
Temperature Error
Based on:
OUT = 1.8639 - 0.0115 x Temp
ꢁNote ±ꢂ
= 2.7V, T = +50ꢀC
A
ꢀC
= 2.7V, T = +85ꢀC
A
MAX613
= 2.7V, T = +100ꢀC
A
= 2.7V, T = +125ꢀC
A
= 2.7V, T = +130ꢀC
A
= 2.7V, T = -55ꢀC
A
= 2.7V, T = -20ꢀC
A
= 2.7V, T = 0ꢀC
A
Temperature Error
Based on:
OUT = 1.8639 - 0.0115 x Temp -
0.00000388 x Temp ꢁNote ±ꢂ
= 2.7V, T = +50ꢀC
A
ꢀC
= 2.7V, T = +85ꢀC
A
= 2.7V, T = +100ꢀC
A
2
= 2.7V, T = +125ꢀC
A
= 2.7V, T = +130ꢀC
-1.5
A
where T is the die temperature of the MAX6613 in ꢀC.
Therefore:
Detailed Description
The MAX6613 analog output temperature sensor’s out-
put voltage is a discrete function of its die temperature.
The maximum supply current is 13µA, and the supply
voltage range is from 2.5V to 5.5V for the -55ꢀC to
+130ꢀC temperature range, or 1.8V to 5.5V for the
+25ꢀC to +130ꢀC temperature range.
T = ꢁ1.8±55 - V
ꢂ / 0.01123V
OUT
Compatibility with Other Temperature
Sensors
The MAX6613 can be used to replace temperature sen-
sors using other output algorithms. Table 1 provides
information for a linear and quadratic output equation.
Contact the factory for performance information about
another equation.
Transfer Function
The temperature-to-voltage transfer function is approxi-
mately linear and can be described by the quadratic
equation:
2
✕
✕
V
OUT
= -0.0000022 T - 0.01105 T + 1.8±55V
In many cases, a linear approximation can be applied:
✕
V
OUT
= -0.01123 T + 1.8±55V
4
_______________________________________________________________________________________
Low-Voltage Analog Temperature
Sensor in an SC70 Package
MAX613
As with any IC, the wiring and circuits must be kept
Applications Information
insulated and dry to avoid leakage and corrosion,
especially if the part is operated at cold temperatures
where condensation can occur.
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 mea-
sure. 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. If the sensor is intended
to measure the temperature of a heat-generating com-
ponent on the circuit board, it should be mounted as
close as possible to that component and should share
supply and ground traces ꢁif they are not noisyꢂ with
that component where possible. This optimizes the
thermal connection from the component to the sensor.
The change in die temperature introduced by the part
due to self-heating is negligible.
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns,
go to www.maxim-ic.com/packages. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
The thermal path between the plastic package and the
die is not as good as the path through the lead, so the
MAX6613, like all temperature sensors in plastic pack-
ages, is less sensitive to the temperature of the sur-
rounding air than to the temperature of its leads. It can
be successfully used to sense ambient temperature if
the circuit board is designed to track the ambient tem-
perature.
PACKAGE
TYPE
5 SC70
PACKAGE
CODE
OUTLINE
NO.
21-0076
LAND
PATTERN NO.
X5+1
90-0188
_______________________________________________________________________________________
5
Low-Voltage Analog Temperature
Sensor in an SC70 Package
Revision History
REVISION REVISION
DESCRIPTION
PAGES
CHANGED
NUMBER
DATE
5/02
0
1
2
3
Initial release
—
11/03
1/06
Fix error in equation
4
Update spec in table
2
12/10
Add lead-free and automotive part, style edits
1, 2, 3, 5, 6
MAX613
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.
6 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2010 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
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