MAX6608IUK-T [MAXIM]
Low-Voltage Analog Temperature Sensors in SC70 and SOT23 Packages; 低电压，模拟温度传感器，SC70及SOT23封装
| 型号： | MAX6608IUK-T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Low-Voltage Analog Temperature Sensors in SC70 and SOT23 Packages |
| 文件： | 总6页 (文件大小：137K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-2040; Rev 1; 6/01
Low-Voltage Analog Temperature Sensors
in SC70 and SOT23 Packages
General Description
Features
The MAX6607/MAX6608 precision, low-voltage, analog
output temperature sensors are available in 5-pin SC70
and SOT23 packages. The devices have a +1.8V to
+3.6V supply voltage range and 8µA supply current
over the -20°C to +85°C temperature range. Accuracy
o Operate Down to 1.8V Supply
o Low Current Consumption (15µA max)
o Small SC70 and SOT23 Packages
o
2.0°C (max) Accuracy from +20°C to +50°C
is 0.6ꢀC ꢁtypꢂ ꢃrom T = +20°C to +50°C and is
A
0.7°C ꢁtypꢂ ꢃrom T = 0°C to +70°C.
A
o Optimized to Drive Capacitive Loads Up to
The MAX6607/MAX6608 output voltage depends on its
die temperature and has a slope oꢃ 10mV/°C and an
oꢃꢃset oꢃ 500mV at 0°C.
1000pF
Ordering Information
________________________Applications
Cellular Phones
Battery Packs
GPS Equipment
Digital Cameras
PART
TEMP. RANGE
-20°C to +85°C
-20°C to +85°C
PIN-PACKAGE
5-SC70-5
Portable Equipment
MAX6607IXK-T
MAX6608IUK-T
5-SOT23-5
Typical Application Circuit
Pin Configurations
TOP VIEW
V
CC
V
A
V
CC
CC
MAX6607
MAX6608
OUT
OUT
N.C.
A
1
2
3
5
4
GND
N.C.
GND
A
1
2
3
5
4
OUT
C = 0.2µF
S
ADC IN
MAX6607
MAX6608
µC
GND
V
V
CC
CC
1nF
GND
SC70
SOT23
GND
________________________________________________________________ Maxim Integrated Products
1
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.
Low-Voltage Analog Temperature Sensors
in SC70 and SOT23 Packages
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND..............................................................-0.3V to +6V
Operating Temperature Range .........................-55°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
OUT, A to GND...........................................-0.3V to (V
+ 0.3V)
CC
ESD Protection (Human Body Model) .............................>2000V
Current into Any Pin ............................................................10mA
Output Short-Circuit Duration.....................................Continuous
Continuous Power Dissipation (T = +70ꢀC)
A
5-Pin SC70 (derate 3.1mW/ꢀC above +70ꢀC)..............245mW
5-Pin SOT23 (derate 7.1mW/ꢀC above +70ꢀC)............571mW
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
(V = +1.8V to +3.6V, C = 1nF, T = -20°C to +85°C, typical values are at T = +25°C, unless otherwise noted.) (Note 1)
CC
L
A
A
PARAMETER
SYMBOL
CONDITIONS
MIN
-2.0
-3.5
-5.0
-6.0
1.8
TYP
0.6
0.7
1.0
1.5
MAX
+2.0
+3.5
+5.0
+6.0
3.6
UNITS
T
T
T
T
= +20ꢀC to +50ꢀC
= 0ꢀC to +70ꢀC
= -10ꢀC to +85ꢀC
= -20ꢀC to -10ꢀC
A
A
A
A
Temperature Error
Supply Voltage
V
V
= +2.4V
ꢀC
CC
V
V
CC
T
T
T
= +70ꢀC
= +80ꢀC
= +85ꢀC
1000
500
100
8
A
A
A
Maximum Rate of Rise of Supply
Voltage (Note 2)
< 2.8V
V/s
CC
Supply Current
I
No load
= 0ꢀC
15
µA
mV
Q
Output Voltage
V
T
500
10
OUT
A
Sensor Gain (Average Slope)
Maximum Capacitive Load
Load Regulation
mV/ꢀC
nF
1
I
= -1.2µA to +20µA
0.15
0.3
0.2
0.9
ꢀC/µA
ꢀC/V
OUT
Line Regulation
Note 1: All parameters are measured at T = +25°C. Specifications over temperature range are guaranteed by design.
A
Note 2: Not production tested, guaranteed by design.
2
_______________________________________________________________________________________
Low-Voltage Analog Temperature Sensors
in SC70 and SOT23 Packages
Typical Operating Characteristics
(V
= +1.8V, C = 0.1µF, C = 1nF, unless otherwise noted.)
S L
CC
OUTPUT VOLTAGE
vs. TEMPERATURE
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
TEMPERATURE ERROR
vs. TEMPERATURE
1400
14
12
10
8
T
A
= +25°C
1200
1000
800
600
400
200
0
1.0
0.6
0.2
6
-0.2
4
-0.6
-1.0
2
0
10 20 40 50 60 70 80
30
-20 -10
0
-20
-5
10
25
40
55
70
85
0
1
2
3
4
5
TEMPERATURE (°C)
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
SUPPLY CURRENT
vs. TEMPERATURE
OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
STEP RESPONSE FROM +25°C TO +80°C
FLOURINERT BATH
MAX6607/08 toc06
12
11
10
9
770
760
750
740
730
720
710
700
T
A
= +25°C
V
CC
= +3.3V
OUT
200mV/div
V
CC
= +1.8V
8
7
6
0
5
-25 -10
-40
5
20 35 50 65 80
0
1
2
3
4
5
6
1s/div
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________
3
Low-Voltage Analog Temperature Sensors
in SC70 and SOT23 Packages
Pin Description
Applications Information
Sensing Circuit Board and
Ambient Temperatures
PIN
NAME
FUNCTION
Temperature sensor ICs like the MAX6607/MAX6608
that sense their own die temperatures must be mount-
ed on, or close to, the object whose temperature they
are intended to measure. Because there is a good ther-
mal path between the package’s metal leads and the
IC die, the MAX6607/MAX6608 can accurately measure
the temperature of the circuit board to which it is sol-
dered. If the sensor is intended to measure the tempera-
ture of a heat-generating component on the circuit board,
it should be mounted as close as possible to that compo-
nent and should share supply and ground traces (if they
are not noisy) with that component where possible. This
maximizes the heat transfer from the component to the
sensor.
SC70
SOT23
1
5
OUT
Temperature Sensor Output
2
3
1
3
N.C.
A
Not Connected
Must be connected to GND.
Supply Input. Decouple with
a 0.1µF capacitor to GND.
4
5
4
2
V
CC
GND
Ground
Detailed Description
The MAX6607/MAX6608 analog output temperature
sensors’ output voltage is a linear function of its die
temperature. The slope of the output voltage is
10mV/ꢀC, and there is a 500mV offset at 0ꢀC to allow
measurement of negative temperatures. The maximum
supply current is 15µA, and the supply voltage range is
from +1.8V to +3.6V for the -20ꢀC to +85ꢀC tempera-
ture range.
The thermal path between the plastic package and the
die is not as good as the path through the leads, so the
MAX6607/MAX6608, like all temperature sensors in plas-
tic packages, are less sensitive to the temperature of the
surrounding air than they are to the temperature of their
leads. They can be successfully used to sense ambient
temperature if the circuit board is designed to track the
ambient temperature.
Transfer Function
The temperature-to-voltage transfer function has an
approximately linear positive slope and can be
described by the equation:
As with any IC, the wiring and circuits must be kept insu-
lated and dry to avoid leakage and corrosion, especially if
the part is operated at cold temperatures where conden-
sation can occur.
✕
V
= 500mV + (T 10mV/°C)
OUT
The error introduced by the part self-heating is negligible.
where T is the die temperature of the MAX6607/
MAX6608 in °C.
Chip Information
TRANSISTOR COUNT: 111
Therefore:
T (°C) = (V
- 500mV) / 10mV/°C
OUT
PROCESS: BiCMOS
4
_______________________________________________________________________________________
Low-Voltage Analog Temperature Sensors
in SC70 and SOT23 Packages
Package Information
_______________________________________________________________________________________
5
Low-Voltage Analog Temperature Sensors
in SC70 and SOT23 Packages
Package Information (contnued)
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
© 2001 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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