- 您現(xiàn)在的位置：買賣IC網(wǎng) > Datasheet目錄38 > AD7818ARZ (Analog Devices Inc)IC ADC 10BIT W/TEMP SENSOR 8SOIC Datasheet資料下載
參數(shù)資料
| 型號： | AD7818ARZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 15/20頁 |
| 文件大?。?/td> | 279K |
| 描述： | IC ADC 10BIT W/TEMP SENSOR 8SOIC |
| 產(chǎn)品變化通告： | Product Discontinuance 27/Oct/2011 |
| 標準包裝： | 98 |
| 功能： | 溫度監(jiān)控系統(tǒng)（傳感器） |
| 傳感器類型： | 內(nèi)部 |
| 感應(yīng)溫度： | -55°C ~ 125°C |
| 精確度： | ±2°C |
| 拓撲： | ADC，多路復(fù)用器，寄存器庫 |
| 輸出類型： | MICROWIRE?，QSPI?，SPI? |
| 輸出警報： | 是 |
| 輸出風(fēng)扇： | 是 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 管件 |
REV. C
AD7816/AD7817/AD7818
15
THR
HP T kHz
10
1
0.01
0
80
10
0.1
20
30
40
50
60
70
Figure 19. Power vs. Throughput Rate
AD7817 SERIAL INTERFACE
The serial interface on the AD7817 is a 5-wire interface with
read and write capabilities, with data being read from the output
register via the D
OUT
line and data being written to the control
register via the D
IN
line. The part operates in a slave mode and
requires an externally applied serial clock to the SCLK input to
access data from the data register or write to the control byte.
The RD/WR line is used to determine whether data is being
written to or read from the AD7817. When data is being written
to the AD7817, the RD/WR line is set logic low and when data
is being read from the part the line is set logic high (see Figure
20). The serial interface on the AD7817 is designed to allow the
part to be interfaced to systems that provide a serial clock that is
synchronized to the serial data, such as the 80C51, 87C51,
68HC11, 68HC05, and PIC16Cxx microcontrollers.
DB7 DB0
DB7(DB9) DB0
D
OUT
CONVST
SCLK
BUSY
CS
RD/WR
D
IN
OTI
t
15
t
16
t
3
t
POWER-UP
t
1
Figure 17. Mode 2 Operation
POWER VS. THROUGHPUT
Superior power performance can be achieved by using the Auto-
matic Power-Down (Mode 2) at the end of a conversion (see
Operating Modes section of this data sheet).
t
POWER-UP
t
CONVERT
CONVST
BUSY
2s
8s
t
CYCLE
100s @ 10kSPS
Figure 18. Automatic Power-Down
Figure 18 shows how the Automatic Power-Down is imple-
mented to achieve the optimum power performance from the
AD7816, AD7817, and AD7818. The devices are operated in
Mode 2 and the duration of CONVST pulse is set to be equal to
the power-up time (2 祍). As the throughput rate of the device is
reduced the device remains in its power-down state longer, and
the average power consumption over time drops accordingly.
For example, if the AD7817 is operated in a continuous sam-
pling mode with a throughput rate of 10 kSPS, the power con-
sumption is calculated as follows. The power dissipation during
normal operation is 4.8 mW, V
DD
= 3 V. If the power up time is
2 祍 and the conversion time is 9 祍, the AD7817 can be said to
dissipate 4.8 mW typically for 11 祍 (worst case) during each
conversion cycle. If the throughput rate is 10 kSPS, the cycle
time is 100 祍 and the power dissipated while powered up dur-
ing each cycle is (11/100) ?(4.8 mW) = 528 礧 typ. Power
dissipated while powered down during each cycle is (89/100) ?/DIV>
(3 V ?2 礎(chǔ)) = 5.34 礧 typ. Overall power dissipated is 528 礧
+ 5.34 礧 = 533 礧.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD8210WYRZ-R7 | IC CURRENT MONITOR 0.5% 8SOIC |
| AD8211YRJZ-R2 | IC CURRENT MONITOR 0.25% SOT23-5 |
| AD8213WYRMZ | IC CURRENT MONITOR 0.25% 10MSOP |
| AD8214WYRMZ | IC CURRENT SHUNT COMP OUT 8MSOP |
| AD8215WYRZ | IC CURRENT MONITOR 0.15% 8SOIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7818ARZ-REEL7 | 功能描述:IC ADC 10BIT W/TEMP SENSOR 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標準包裝:2,500 系列:SilentSense™ 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類型: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 遠程（最大） 拓撲:ADC（三角積分型），比較器，寄存器庫 輸出類型:I²C?/SMBus? 輸出警報: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:MIC284-2BMMTRMIC284-2BMMTR-ND |
| AD7819 | 制造商:AD 制造商全稱:Analog Devices 功能描述:+2.7 V to +5.5 V, 200 kSPS 8-Bit Sampling ADC |
| AD7819YN | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 8-bit Parallel 16-Pin PDIP 制造商:Analog Devices 功能描述:IC 8BIT ADC 7819 DIP16 |
| AD7819YNZ | 功能描述:IC ADC 8BIT SAMPLING PAR 16-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個單端，單極；2 個差分，單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD7819YR | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 8-bit Parallel 16-Pin SOIC N 制造商:Rochester Electronics LLC 功能描述:8 BIT,SINGLE,PARALLEL ADC I.C. - Bulk 制造商:Analog Devices 功能描述:IC SEMICONDUTOR ((NS)) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。