參數(shù)資料
型號(hào)： ADT7411ARQ-REEL
廠商： Analog Devices, Inc.
元件分類(lèi)： 圓形連接器
英文描述： Circular Connector; No. of Contacts:26; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:17; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:17-26
中文描述： SPI/I2C兼容，10位數(shù)字溫度傳感器和8通道ADC
文件頁(yè)數(shù)： 17/36頁(yè)
文件大?。?/td> 456K
代理商： ADT7411ARQ-REEL
ADT7411
V
DD
Monitoring
The ADT7411 also has the capability of monitoring its own
power supply. The part measures the voltage on its V
DD
pin to a
resolution of 10 bits. The resulting value is stored in two 8-bit
registers, with the 2 LSBs stored in register Address 03h and the
8 MSBs stored in register Address 06h. This allows the user to
have the option of just doing a 1-byte read if 10-bit resolution is
not important. The measured result is compared with the V
HIGH
and V
LOW
limits. If the V
DD
interrupt is not masked out then any
out-of-limit comparison generates a flag in the Interrupt Status
2 register, and one or more out-of-limit results will cause the
INT/INT output to pull either high or low, depending on the
output polarity setting.
Rev. A | Page 17 of 36
Measuring the voltage on the V
DD
pin is regarded as monitoring
a channel along with the internal, external, and AIN channels.
The user can select the V
DD
channel for single-channel measure-
ment by setting Bit C4 = 1 and setting Bits C0 to C2 to all 0s in
the Control Configuration 2 register.
When measuring the V
DD
value, the reference for the ADC is
sourced from the internal reference. Table 5 shows the data
format. As the max V
DD
voltage measurable is 7 V, internal
scaling is performed on the V
DD
voltage to match the 2.25 V
internal reference value. The following is an example of how the
transfer function works:
V
ference
e
R
ADC
25
.
=
mV
ference
e
R
ADC
LSB
197
.
1024
25
.
2
1
10
=
=
=
11
.
25
.
7
e
=
=
=
ference
R
ADC
V
Fullscale
Factor
Scale
CC
Conversion Result = VDD/(Scale Factor × LSB Size)
(
mV
197
.
11
.
5
×
=
=
Table 5. V
DD
Data Format, V
REF
= 2.25 V
V
DD
Value (V)
2.5
2.7
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
)
DBh
2
Digital Output
Binary
01 0110 1110
01 1000 1011
01 1011 0111
10 0000 0000
10 0100 1001
10 1001 0010
10 1101 1011
11 0010 0100
11 0110 1101
11 1011 0110
11 1111 1111
Hex
16E
18B
1B7
200
249
292
2DB
324
36D
3B6
3FF
On-Chip Reference
The ADT7411 has an on-chip 1.125 V band gap reference that is
gained up by a switched capacitor amplifier to give an output of
2.25 V. The amplifier is powered up for the duration of the
device monitoring phase and is powered down once monitoring
is disabled. This saves on current consumption. The internal
reference is used as the reference for the ADC.
Round Robin Measurement
Upon power-up, the ADT7411 goes into round robin mode, but
monitoring is disabled. Setting Bit C0 of the Configuration 1
register to 1 enables conversions. It sequences through all
available channels, taking a measurement from each in the
following order: V
DD
, internal temperature sensor, external
temperature sensor/(AIN1 and AIN2), AIN3, AIN4, AIN5,
AIN6, AIN7, and AIN8. Pin 7 and Pin 8 can be configured as
either external temperature sensor pins or standalone analog
input pins. Once conversion is completed on the AIN8 channel,
the device loops around for another measurement cycle. This
method of taking a measurement on all the channels in one
cycle is called round robin. Setting Bit 4 of the Control
Configuration 2 register (Address 19h) disables the round robin
mode and in turn sets up the single-channel mode. The single-
channel mode is where only one channel, e.g., the internal
temperature sensor, is measured in each conversion cycle.
The time taken to monitor all channels will normally not be of
interest, as the most recently measured value can be read at any
time. For applications where the round robin time is important,
typical times at 25°C are given in the specification pages.
Single-Channel Measurement
Setting Bit C4 of the Control Configuration 2 register enables
the single-channel mode and allows the ADT7411 to focus on
one channel only. A channel is selected by writing to Bits C0:C3
in the Control Configuration 2 register. For example, to select
the V
DD
channel for monitoring, write to the Control
Configuration 2 register and set C4 to 1 (if not done so already),
then write all 0s to Bits C0 to C3. All subsequent conversions
will be done on the V
DD
channel only. To change the channel
selection to the internal temperature channel, write to the
Control Configuration 2 register and set C0 = 1. When
measuring in single-channel mode, conversions on the channel
selected occur directly after each other. Any communication to
the ADT7411 stops the conversions, but they are restarted once
the read or write operation is completed.
Temperature Measurement Method
Internal Temperature Measurement
The ADT7411 contains an on-chip, band gap temperature
sensor whose output is digitized by the on-chip ADC. The
temperature data is stored in the internal temperature value
register. As both positive and negative temperatures can be
measured, the temperature data is stored in twos complement
format, as shown in Table 6. The thermal characteristics of the
相關(guān)PDF資料
PDF描述
ADT7411ARQ-REEL7 Circular Connector; No. of Contacts:55; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:17; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:17-35
ADT7411ARQZ-REEL Circular Connector; No. of Contacts:55; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:17; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:17-35
ADT7411ARQZ-REEL7 Circular Connector; No. of Contacts:55; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:17; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:17-35
ADT7411ARQZ10 LJT 6C 6#12 SKT RECP
ADuC812(中文) 12-Bit ADC with Embedded FLASH MCU(12位8通道A/D轉(zhuǎn)換器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADT7411ARQ-REEL7 功能描述:IC SENSOR TEMP 10BIT ADC 16QSOP RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:SilentSense™ 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類(lèi)型:內(nèi)部和外部 感應(yīng)溫度:-55°C ~ 125°C，外部傳感器 精確度:±2°C 本地（最大），±3°C 遠(yuǎn)程（最大） 拓?fù)?ADC（三角積分型），比較器，寄存器庫(kù) 輸出類(lèi)型:I²C?/SMBus? 輸出警報(bào):是 輸出風(fēng)扇:是 電源電壓:2.7 V ~ 5.5 V 工作溫度:-55°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MSOP 包裝:帶卷 (TR) 其它名稱(chēng):MIC284-2BMMTRMIC284-2BMMTR-ND
ADT7411ARQZ 功能描述:IC DGTL TEMP SNSR 8CH ADC 16QSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 功能:溫度開(kāi)關(guān) 傳感器類(lèi)型:內(nèi)部 感應(yīng)溫度:85°C 分界點(diǎn) 精確度:±6°C（最小值） 拓?fù)?ADC（三角積分型），比較器，寄存器庫(kù) 輸出類(lèi)型:開(kāi)路漏極 輸出警報(bào):是 輸出風(fēng)扇:是 電源電壓:2.7 V ~ 5.5 V 工作溫度:-55°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:帶卷 (TR) 其它名稱(chēng):ADT6501SRJZP085RL7-ND
ADT7411ARQZ 制造商:Analog Devices 功能描述:Temperature Sensor IC
ADT7411ARQZ1 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:SPI??-/I2C??-Compatible, 10-Bit Digital Temperature Sensor and 8-Channel ADC
ADT7411ARQZ10 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:SPI/I2C Compatible, 10-Bit Digital Temperature Sensor and 8-Channel ADC
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*