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參數(shù)資料
| 型號(hào)： | MAX6577 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類(lèi)： | 溫度/濕度傳感器 |
| 英文描述： | SOT Temperature Sensors with Period/Frequency Output |
| 中文描述： | SOT溫度傳感器，周期時(shí)間/頻率輸出 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 136K |
| 代理商： | MAX6577 |
Table 1. MAX6576 Time-Select Pin
Configuration
Table 2. MAX6577 Time-Select Pin
Configuration
M
S OT Temperature S ensors with
Period/Frequenc y Output
4
_______________________________________________________________________________________
Pin Desc ription
Detailed Desc ription
The MAX6576/MAX6577 low-cost, low-current (140μA
typ) temperature sensors are ideal for interfacing with
microcontrollers (μCs) or microprocessors (μPs). The
MAX6576 converts ambient temperature into a 50% duty-
cycle square wave with a period proportional to absolute
temperature. The MAX6577 converts ambient tempera-
ture into a 50% duty-cycle square wave with a frequency
proportional to absolute temperature. Time-select pins
(TS1, TS0) permit the internal temperature-controlled
oscillator (TCO) to be scaled by four preset multipliers.
The MAX6576/MAX6577 feature a single-wire interface to
minimize the number of port pins necessary for interfac-
ing with a μP.
MAX 6576 Charac teristic s
The MAX6576 temperature sensor converts tempera-
ture to period. The output of the device is a free-
running, 50% duty-cycle square wave with a period that
is proportional to the absolute temperature (°K) of the
device (Figure 1). The MAX6576 has a push/pull CMOS
output with sharp edges. The speed of the output
square wave can be selected by hard-wiring TS1 and
TS0 as shown in Table 1. One of four scaled output
periods can be selected using TS1 and TS0.
MAX 6577 Charac teristic s
The MAX6577 temperature sensor converts tempera-
ture to frequency. The output of the device is a free-
running, 50% duty-cycle square wave with a frequency
that is proportional to the absolute temperature (°K) of
the device (Figure 2). The MAX6577 has a push/pull
CMOS output with sharp edges. The speed of the out-
put square wave can be selected by hard-wiring TS1
and TS0 as shown in Table 2. One of four scaled output
frequencies can be selected using TS1 and TS0.
GND
GND
V
DD
V
DD
GND
V
DD
V
DD
GND
10
40
160
640
TS1
TS0
SCALAR MULTIPLIER
(μs/°K)
Note:
The temperature, in °C, may be calculated as follows:
GND
GND
V
DD
V
DD
GND
V
DD
V
DD
GND
4
1
1/4
1/16
TS1
TS0
SCALAR MULTIPLIER
(Hz/°K)
1
2
3
Positive Supply Voltage
Ground
No Connection. Connect pin to GND or leave open.
FUNCTION
4, 5
Time-Select Pins. TS1 and TS0 set the temperature scale factor by connecting TS1 and TS0 to
either V
DD
or GND. See Tables 1 and 2.
Square-Wave Output with a Clock Period Proportional to Absolute Temperature (°K) (MAX6576)
PIN
N.C.
GND
V
DD
NAME
TS1, TS0
Note:
The temperature, in °C, may be calculated as follows:
T( C)
period( s)
scalar mulitplier( s/ K)
273.15 K
=
T( C)
frequency(Hz)
scalar mulitplier(Hz/ K)
273.15 K
=
6
Square-Wave Output with a Clock Frequency Proportional to Absolute Temperature (°K) (MAX6577)
OUT
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相關(guān)代理商/技術(shù)參數(shù) |
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| MAX657CPD | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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