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參數(shù)資料
| 型號： | AD7478WARTZ-RL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/25頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 8BIT 1MSPS SOT23-6 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 位數(shù)： | 8 |
| 采樣率（每秒）： | 1M |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 17.5mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-6 |
| 供應(yīng)商設(shè)備封裝： | SOT-23-6 |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 輸入數(shù)目和類型： | 1 個單端，單極 |
| 產(chǎn)品目錄頁面： | 778 (CN2011-ZH PDF) |
| 其它名稱： | AD7478WARTZ-RL7DKR |
1 MSPS, 12-/10-/8-Bit ADCs
in 6-Lead SOT-23
AD7476/AD7477/AD7478
Rev. F
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
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
2000–2009 Analog Devices, Inc. All rights reserved.
FEATURES
Fast throughput rate: 1 MSPS
Specified for VDD of 2.35 V to 5.25 V
Low power
3.6 mW at 1 MSPS with 3 V supplies
15 mW at 1 MSPS with 5 V supplies
Wide input bandwidth
70 dB SNR at 100 kHz input frequency
Flexible power/serial clock speed management
No pipeline delays
High speed serial interface
SPI-/QSPI-/MICROWIRE-/DSP-compatible
Standby mode: 1 μA maximum
6-lead SOT-23 package
APPLICATIONS
Battery-powered systems
Personal digital assistants
Medical instruments
Mobile communications
Instrumentation and control systems
Data acquisition systems
High speed modems
Optical sensors
FUNCTIONAL BLOCK DIAGRAM
01
024
-00
1
CONTROL
LOGIC
12-/10-/8-BIT
SUCCESSIVE-
APPROXIMATION
ADC
VIN
SCLK
SDATA
CS
VDD
GND
AD7476/AD7477/AD7478
Figure 1.
GENERAL DESCRIPTION
The AD7476/AD7477/AD74781 are, respectively, 12-bit, 10-bit,
and 8-bit, high speed, low power, successive approximation
ADCs. The parts operate from a single 2.35 V to 5.25 V power
supply and feature throughput rates up to 1 MSPS. Each part
contains a low noise, wide bandwidth track-and-hold amplifier
that can handle input frequencies in excess of 6 MHz.
The conversion process and data acquisition are controlled
using CS and the serial clock, allowing the devices to interface
with microprocessors or DSPs. The input signal is sampled on
the falling edge of CS and the conversion is initiated at this
point. There are no pipeline delays associated with these parts.
The AD7476/AD7477/AD7478 use advanced design techniques
to achieve very low power dissipation at high throughput rates.
The reference for the parts is taken internally from VDD. This
allows the widest dynamic input range to the ADC. Thus, the
analog input range for the parts are 0 V to VDD. The conversion
rate is determined by the SCLK.
1 Protected by U.S. Patent No. 6,681,332.
PRODUCT HIGHLIGHTS
1.
First 12-/10-/8-Bit ADCs in SOT-23 Packages.
2.
High Throughput with Low Power Consumption.
3.
Flexible Power/Serial Clock Speed Management. The
conversion rate is determined by the serial clock, allowing
the conversion time to be reduced through the serial clock
speed increase. This allows the average power consumption
to be reduced while not converting. The parts also feature a
shutdown mode to maximize power efficiency at lower
throughput rates. Current consumption is 1 μA maximum
when in shutdown mode.
4.
Reference Derived from the Power Supply.
5.
No Pipeline Delay. The parts feature a standard successive-
approximation ADC with accurate control of the sampling
instant via a CS input and once-off conversion control.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7478WARTZ-RL734 | 制造商:AD 制造商全稱:Analog Devices 功能描述:1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SOT-23 |
| AD7482 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3MSPS, 12-Bit SAR ADC |
| AD7482AST | 制造商:Rochester Electronics LLC 功能描述:12 BIT 3.5 MEG ADC IC - Tape and Reel 制造商:Analog Devices 功能描述:IC 12BIT ADC SMD 7482 LQFP48 |
| AD7482ASTZ | 功能描述:IC ADC 12BIT SAR 3MSPS 48LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):12 采樣率（每秒）:3M 數(shù)據(jù)接口:- 轉(zhuǎn)換器數(shù)目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:- |
| AD7482BST | 制造商:Analog Devices 功能描述:ADC Single SAR 3Msps 12-bit Parallel 48-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:12 BIT 3.5 MEG ADC IC - Tape and Reel 制造商:Analog Devices 功能描述:A/D Converter (A-D) IC |
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