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参数资料
型号： AD7476ART
厂商： ANALOG DEVICES INC
元件分类： ADC
英文描述： 1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SOT-23
中文描述： 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO6
封装： PLASTIC, MO-178AB, SOT-23, 6 PIN
文件页数： 1/20页
文件大小： 360K
代理商： AD7476ART
REV. D
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 owners.
Tel: 781/329-4700
Fax: 781/326-8703
AD7476/AD7477/AD7478
*
1 MSPS, 12-/10-/8-Bit ADCs
in 6-Lead SOT-23
*
Protected by U.S.Patent No. 6,681,332.
FEATURES
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
15 mW Typ 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 A Max
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
T/H
AD7476/AD7477/AD7478
SCLK
SDATA
CS
V
IN
V
DD
GND
8-/10-/12-BIT
SUCCESSIVE-
APPROXIMATION
ADC
CONTROL
LOGIC
GENERAL DESCRIPTION
The AD7476/AD7477/AD7478 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. The parts
contain 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 also initiated at this
point. There are no pipeline delays associated with the part.
The AD7476/AD7477/AD7478 use advanced design techniques
to achieve very 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 V to V
DD
. The conversion
rate is determined by the SCLK.
PRODUCT HIGHLIGHTS
1. First 12-/10-/8-Bit ADCs in a SOT-23 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 conversion time to be reduced through the serial clock
speed increase. This allows the average power consumption
to be reduced while not converting. The part also features a
shutdown mode to maximize power efficiency at lower
throughput rates. Current consumption is 1
μ
A maximum
when in shutdown.
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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相关代理商/技术参数
参数描述
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AD7476ART-REEL 制造商:Analog Devices 功能描述:ADC SGL SAR 1MSPS 12-BIT SERL 6PIN SOT-23 - Tape and Reel
AD7476ART-REEL7 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 12-bit Serial 6-Pin SOT-23 T/R
AD7476ARTZ 制造商:Analog Devices 功能描述:ADC,AD7476A 12bit 1MSPS SPI SOT23
AD7476ARTZ-500RL7 功能描述:IC ADC 12BIT 1MSPS SOT-23-6 RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6
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