- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1980 > AD7291BCPZ-RL7 (Analog Devices Inc)IC ADC I2C/SRL 22.22K 20LFCSP PDF資料下載
參數(shù)資料
| 型號： | AD7291BCPZ-RL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/29頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC I2C/SRL 22.22K 20LFCSP |
| 標(biāo)準(zhǔn)包裝： | 1,500 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 22.22k |
| 數(shù)據(jù)接口： | I²C，串行 |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 12.6mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-WFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 20-LFCSP-WQ（4x4） |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 8 個單端，單極 |
| 配用： | EVAL-AD7291SDZ-ND - BOARD EVAL FOR AD7291 |
當(dāng)前第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁
8-Channel, I2C, 12-Bit SAR ADC
with Temperature Sensor
Data Sheet
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2011 Analog Devices, Inc. All rights reserved.
FEATURES
12-bit SAR ADC
8 single-ended analog input channels
Analog input range: 0 V to 2.5 V
12-bit temperature-to-digital converter
Temperature sensor accuracy of ±1°C typical
Channel sequencer operation
Specified for VDD of 2.8 V to 3.6 V
Logic voltage VDRIVE = 1.65 V to 3.6 V
Internal 2.5 V reference
I2C-compatible serial interface supports standard and
fast speed modes
Out of range indicator/alert function
Autocycle mode
Power-down current: 12 μA maximum
Temperature range: 40°C to +125°C
20-lead LFCSP package
FUNCTIONAL BLOCK DIAGRAM
TEMP
SENSOR
12-BIT
SUCCESSIVE
APPROXIMATION
ADC
INPUT
MUX
T/H
VDD
GND
PD/RST
SCL
SDA
AS1
AS0
VDRIVE
VIN7
VIN0
CONTROL LOGIC
I2C INTERFACE
SEQUENCER
VREF
BUF
REF
AD7291
0
87
1
1-
00
1
ALERT
Figure 1.
GENERAL DESCRIPTION
The AD7291 is a 12-bit, low power, 8-channel, successive
approximation analog-to-digital converter (ADC) with an
internal temperature sensor.
The part operates from a single 3.3 V power supply and features
an I2C-compatible interface. The part contains a 9-channel
multiplexer and a track-and-hold amplifier than can handle
frequencies up to 30 MHz. The device has an on-chip 2.5 V
reference that can be disabled to allow the use of an external
reference.
The AD7291 provides a 2-wire serial interface compatible with
I2C interfaces. The I2C interface supports standard and fast I2C
interface modes. The AD7291 normally remains in a partial
power-down state while not converting and powers up for
conversions. The conversion process can be controlled by a
command mode where conversions occur across I2C write
operations or an autocycle mode selected through software
control.
The AD7291 includes a high accuracy band gap temperature
sensor, which is monitored and digitized by the 12-bit ADC to
give a resolution of 0.25°C.
The AD7291 offers a programmable sequencer, which enables
the selection of a preprogrammable sequence of channels for
conversion.
On-chip limit registers can be programmed with high and low
limits for the conversion results; an out-of-range indicator
output (ALERT) becomes active when the programmed high
or low limits are violated by the conversion result. This output
can be used as an interrupt.
PRODUCT HIGHLIGHTS
1.
Ideally suited to monitoring system variables in a variety
of systems including telecommunications, process control,
and industrial control.
2.
I2C-compatible serial interface, which supports standard
and fast modes.
3.
Automatic partial power-down while not converting to
maximize power efficiency.
4.
Channel sequencer operation.
5.
Integrated temperature sensor with 0.25°C resolution.
6.
Out of range indicator that can be software disabled or
enabled.
Table 1. AD7291 and Related Products
Device
Resolution
Interface
Features
12-bit
I2C
8-channel, I2C, 12-bit SAR
ADC with temperature sensor
12-bit
SPI
8-channel, 1 MSPS, 12-bit SAR
ADC with temperature sensor
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD7298-1BCPZ-RL | IC ADC 10BIT SPI/SRL 8CH 20LFCSP |
| AD7298BCPZ-RL7 | IC ADC 10BIT SPI/SRL 8CH 20LFCSP |
| AD7302BRUZ-REEL7 | IC DAC 8BIT DUAL R-R 20-TSSOP |
| AD7303BRM | IC DAC 8BIT DUAL R-R 8-MSOP |
| AD7305BRU | IC DAC 8BIT QUAD R-R 20-TSSOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7291TCPZ-EP | 功能描述:CH 12 BIT SAR WT INTERNAL TEMP S 制造商:analog devices inc. 系列:- 包裝:托盤 零件狀態(tài):在售 位數(shù):12 采樣率（每秒）:22.22k 輸入數(shù):8 輸入類型:單端 數(shù)據(jù)接口:I2C 配置:MUX-S/H-ADC 無線電 - S/H:ADC:1:1 A/D 轉(zhuǎn)換器數(shù):1 架構(gòu):SAR 參考類型:外部， 內(nèi)部 電壓 - 電源，模擬:2.8 V ~ 3.6 V 電壓 - 電源，數(shù)字:2.8 V ~ 3.6 V 特性:溫度傳感器 工作溫度:-55°C ~ 125°C（TA） 封裝/外殼:20-WFQFN 裸露焊盤，CSP 供應(yīng)商器件封裝:20-LFCSP（4x4） 標(biāo)準(zhǔn)包裝:1 |
| AD7291TCPZ-EP-RL7 | 功能描述:8 CH 12 BIT SAR WT INTERNAL TEMP 制造商:analog devices inc. 系列:- 包裝:帶卷（TR） 零件狀態(tài):在售 位數(shù):12 采樣率（每秒）:22.22k 輸入數(shù):8 輸入類型:單端 數(shù)據(jù)接口:I2C 配置:MUX-S/H-ADC 無線電 - S/H:ADC:1:1 A/D 轉(zhuǎn)換器數(shù):1 架構(gòu):SAR 參考類型:外部， 內(nèi)部 電壓 - 電源，模擬:2.8 V ~ 3.6 V 電壓 - 電源，數(shù)字:2.8 V ~ 3.6 V 特性:溫度傳感器 工作溫度:-55°C ~ 125°C（TA） 封裝/外殼:20-WFQFN 裸露焊盤，CSP 供應(yīng)商器件封裝:20-LFCSP（4x4） 標(biāo)準(zhǔn)包裝:1,500 |
| AD7292BCPZ | 制造商:Analog Devices 功能描述:Monitor and Control System 36-Pin LFCSP EP Tray 制造商:Analog Devices 功能描述:12-BIT,MULTI-CHANNEL, ADC,DAC WT TEMP IC - Trays 制造商:Analog Devices 功能描述:IC ADC 10BIT SPI/SRL 36-LFCSP 制造商:Analog Devices 功能描述:ADC DAC TEMP SENSOR GPIO 3 制造商:Analog Devices 功能描述:ADC, DAC, TEMP SENSOR, GPIO, 36LFCSP 制造商:Analog Devices Inc. 功能描述:Analog to Digital Converters - ADC 12-Bit Multi-Channel ADC DAC wt Temp IC 制造商:Analog Devices 功能描述:ANALOGUE MONITORING & CONTROL CIRCUIT, LFCSP-36; IC Function:Analogue Monitoring and Control Circuit; Supply Voltage Min:1.8V; Supply Voltage Max:5.25V; Operating Temperature Min:-40C; Operating Temperature Max:125C; No. of Pins:36;RoHS Compliant: Yes |
| AD7292BCPZ-RL | 制造商:Analog Devices 功能描述:Monitor and Control System 36-Pin LFCSP EP T/R 制造商:Analog Devices 功能描述:12-BIT,MULTI-CHANNEL, ADC,DAC WT TEMP IC - Tape and Reel 制造商:Analog Devices 功能描述:IC ADC 10BIT SPI/SRL 36LFCSP 制造商:Analog Devices Inc. 功能描述:Analog to Digital Converters - ADC 12-Bit Multi-Channel ADC DAC wt Temp IC 制造商:Analog Devices Inc. 功能描述:Analog to Digital Converters - ADC 10B Monitor & Cntrl System w/ Temp Sensr |
| AD7293BCPZ | 功能描述:12-BIT POWER AMPLIFIER CURRENT C 制造商:analog devices inc. 系列:* 零件狀態(tài):有效 標(biāo)準(zhǔn)包裝:1 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。