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參數(shù)資料
| 型號： | AD7472 |
| 英文描述： | AD7470/AD7472: 1.75MSPS. 4mW 10-Bit/12-Bit SAR ADC Data Sheet (Rev. A. 3/00) |
| 中文描述： | AD7470/AD7472：1.75MSPS。 4mW變10-Bit/12-Bit SAR型ADC數(shù)據(jù)手冊（版本A 3 / 00） |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 729K |
| 代理商： | AD7472 |
REV. A
a
AD7476A/AD7477A/AD7478A
2.35 V to 5.25 V, 1 MSPS,
12-/10-/8-Bit ADCs in 6-Lead SC70
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
Tel: 781/329-4700 Fax: 781/326-8703
www.analog.comFEATURES
Fast Throughput Rate: 1 MSPS
Specified for V
DD
of 2.35 V to 5.25 V
Low Power:
3.6 mW Typ at 1 MSPS with 3 V Supplies
12.5 mW Typ at 1 MSPS with 5 V Supplies
Wide Input Bandwidth:
71 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 A Max
6-Lead SC70 Package
8-Lead MSOP 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
12-/10-/8-BIT
SUCCESSIVE
APPROXIMATION
ADC
CONTROL
LOGIC
AD7476A/AD7477A/AD7478A
GND
V
DD
V
IN
SCLK
SDATA
CS
T/H
GENERAL DESCRIPTION
The AD7476A/AD7477A/AD7478A are 12-bit, 10-bit, and 8-bit,
high speed, low power, successive approximation ADCs, respec-
tively. The parts operate from a single 2.35 V to 5.25 V power
supply and feature throughput rates up to 1 MSPS. The parts
contain a low noise, wide bandwidth track-and-hold amplifier
that can handle input frequencies in excess of 13 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 also initiated at this point.
There are no pipeline delays associated with the part.
The AD7476A/AD7477A/AD7478A use advanced design tech-
niques to achieve low power dissipation at high throughput rates.
The reference for the part is taken internally from V
DD.
This allows
the widest dynamic input range to the ADC. Thus, the analog
input range for the part is 0 to V
DD
. The conversion rate is deter-
mined by the SCLK.
PRODUCT HIGHLIGHTS
1. First 8-/10-/12-bit ADCs in an SC70 package.
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 conver-
sion time to be reduced through the serial clock speed increase.
This allows the average power consumption to be reduced
when a power-down mode is used while not converting. The
part also features a power-down mode to maximize power
efficiency at lower throughput rates. Current consumption is
1
μ
A max and 50 nA typically when in power-down 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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| AD7472AR | 功能描述:IC ADC 12BIT PARALLEL 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:- |
| AD7472AR-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 1.5Msps 12-bit Parallel 24-Pin SOIC W T/R 制造商:Rochester Electronics LLC 功能描述:12 BIT 1.5MSPS PARALLEL ADC I.C. - Tape and Reel |
| AD7472AR-REEL7 | 功能描述:IC ADC 12BIT PARALLEL 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7472ARU | 功能描述:IC ADC 12BIT PARALLEL 24-TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7472ARU-REEL | 功能描述:IC ADC 12BIT PARALLEL 24-TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:- |
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