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AD7923SRUZ-EP PDF预览

AD7923SRUZ-EP

更新时间： 2024-02-05 08:15:31
品牌 Logo 应用领域
亚德诺 - ADI 光电二极管转换器
页数 文件大小 规格书
12页 218K
描述
4-Channel 200 kSPS, 12-Bit A/D Converter with Sequencer in 16-Lead TSSOP

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中文翻译

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AD7923SRUZ-EP 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active包装说明：TSSOP,
针数：16Reach Compliance Code：compliant
风险等级：5.66最大模拟输入电压：5.05 V
最小模拟输入电压：最长转换时间：0.8 µs
转换器类型：ADC, SUCCESSIVE APPROXIMATIONJESD-30 代码：R-PDSO-G16
长度：5 mm最大线性误差 (EL)：0.0244%
模拟输入通道数量：4位数：12
功能数量：1端子数量：16
最高工作温度：125 °C最低工作温度：-55 °C
输出位码：BINARY, 2'S COMPLEMENT BINARY输出格式：SERIAL
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260采样速率：0.2 MHz
采样并保持/跟踪并保持：TRACK座面最大高度：1.2 mm
标称供电电压：3 V表面贴装：YES
温度等级：MILITARY端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：4.4 mm
Base Number Matches：1

AD7923SRUZ-EP 数据手册

 浏览型号AD7923SRUZ-EP的Datasheet PDF文件第2页浏览型号AD7923SRUZ-EP的Datasheet PDF文件第3页浏览型号AD7923SRUZ-EP的Datasheet PDF文件第4页浏览型号AD7923SRUZ-EP的Datasheet PDF文件第5页浏览型号AD7923SRUZ-EP的Datasheet PDF文件第6页浏览型号AD7923SRUZ-EP的Datasheet PDF文件第7页 
4-Channel, 200 kSPS 12-Bit ADC  
with Sequencer in 16-Lead TSSOP  
AD7923-EP  
Enhanced Product  
clock to control the conversion. The conversion time can be as  
short as 800 ns with a 20 MHz SCLK.  
FEATURES  
Fast throughput rate: 200 kSPS  
Specified for AVDD of 2.7 V to 5.25 V  
Low power  
Additional application and technical information can be found  
in the AD7923 data sheet.  
3.6 mW max at 200 kSPS with 3 V supply  
7.5 mW max at 200 kSPS with 5 V supply  
4 (single-ended) inputs with sequencer  
Wide input bandwidth  
FUNCTIONAL BLOCK DIAGRAM  
AV  
DD  
REF  
IN  
70 dB min SNR at 50 kHz input frequency  
Flexible power/serial clock speed management  
No pipeline delays  
High speed serial interface SPI®-/QSPI™-/  
MICROWIRE™-/DSP-compatible  
Shutdown mode: 0.5 µA max  
V
0
IN  
•
•
•
•
•
•
•
•
•
•
•
•
T/H  
12-BIT  
SUCCESSIVE  
APPROXIMATION  
ADC  
INPUT  
MUX  
16-lead TSSOP package  
Support defense and aerospace applications (AQEC)  
Military temperature range (−55°C to +125°C)  
Controlled manufacturing baseline  
One assembly/test site  
•
V
3
IN  
SCLK  
DOUT  
DIN  
CONTROL LOGIC  
SEQUENCER  
One fabrication site  
Enhanced product change notification  
Qualification data available on request  
CS  
AD7923-EP  
V
DRIVE  
GENERAL DESCRIPTION  
GND  
Figure 1.  
The AD7923-EP is a 12-bit, high speed, low power, 4-channel,  
successive approximation (SAR) ADC. It operates from a single  
2.7 V to 5.25 V power supply and features throughput rates up to  
200 kSPS. It contains a low noise, wide bandwidth track-and-hold  
amplifier that can handle input frequencies in excess of 8 MHz.  
PRODUCT HIGHLIGHTS  
1. High Throughput with Low Power Consumption.  
The AD7923-EP offers up to 200 kSPS throughput rates.  
At the maximum throughput rate with 3 V supplies, the  
AD7923-EP dissipates just 3.6 mW of power.  
The conversion process and data acquisition are controlled by  
2. Four Single-Ended Inputs with a Channel Sequencer.  
3. Single-Supply Operation with VDRIVE Function.  
The VDRIVE function allows the serial interface to connect  
directly to either 3 V or 5 V processor systems independent  
CS  
and the serial clock, allowing the device to easily interface  
with microprocessors or DSPs. The input signal is sampled on  
CS  
the falling edge of ; the conversion is also initiated at this point.  
The AD7923-EP uses advanced design techniques to achieve  
very low power dissipation at maximum throughput rates. At  
maximum throughput rates, it consumes 1.2 mA maximum  
with 3 V supplies and 1.5 mA maximum with 5 V supplies.  
of AVDD  
.
4. 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. The part also features various  
shutdown modes to maximize power efficiency at lower  
throughput rates. Current consumption is 0.5 µA maximum  
when in full shutdown.  
Through the configuration of the control register, the analog  
input range can be selected as 0 V to REFIN or 0 V to 2 × REFIN,  
with either straight binary or twos complement output coding.  
The AD7923-EP features four single-ended analog inputs with a  
channel sequencer to allow a preprogrammed selection of  
channels to be converted sequentially.  
5. No Pipeline Delay.  
The part features a SAR ADC with accurate control of the  
CS  
sampling instant via a  
control.  
input and once off conversion  
The conversion time for the AD7923-EP is determined by the  
serial clock, SCLK, frequency, since this is used as the master  
Rev. 0  
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  
rightsof third parties that may result fromits use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks andregisteredtrademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2011 Analog Devices, Inc. All rights reserved.  
 
 
 
 
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