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AD7923WYRUZ-REEL7 PDF预览

AD7923WYRUZ-REEL7

更新时间： 2024-01-29 12:17:17
品牌 Logo 应用领域
亚德诺 - ADI 转换器模数转换器光电二极管
页数 文件大小 规格书
24页 380K
描述
4-Channel, 200 kSPS 12-Bit ADC with Sequencer in 16-Lead TSSOP

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AD7923WYRUZ-REEL7 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：TSSOP
包装说明：TSSOP, TSSOP16,.25针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：2.22
Is Samacsys：N最大模拟输入电压：2.5 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：-40 °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
封装等效代码：TSSOP16,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：NOT SPECIFIED
电源：3/5 V认证状态：Not Qualified
采样速率：0.2 MHz采样并保持/跟踪并保持：TRACK
筛选级别：AEC-Q100座面最大高度：1.2 mm
子类别：Analog to Digital Converters标称供电电压：3 V
表面贴装：YES技术：CMOS
温度等级：AUTOMOTIVE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：NOT SPECIFIED宽度：4.4 mm
Base Number Matches：1

AD7923WYRUZ-REEL7 数据手册

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4-Channel, 200 kSPS 12-Bit ADC  
with Sequencer in 16-Lead TSSOP  
AD7923  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
Fast throughput rate: 200 kSPS  
Specified for AVDD of 2.7 V to 5.25 V  
Low power  
AV  
DD  
REF  
IN  
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  
70 dB Min SNR at 50 kHz input frequency  
Flexible power/serial clock speed management  
No pipeline delays  
High speed serial interface SPI®-/QSPITM-/  
MICROWIRETM-/DSP-compatible  
Shutdown mode: 0.5 μA max  
V
0
IN  
•
•
•
•
•
•
•
•
•
•
•
•
•
T/H  
12-BIT  
SUCCESSIVE  
APPROXIMATION  
ADC  
I/P  
MUX  
V
3
IN  
SCLK  
DOUT  
DIN  
16-lead TSSOP package  
Qualified for automotive applications  
CONTROL LOGIC  
SEQUENCER  
CS  
AD7923  
GENERAL DESCRIPTION  
V
DRIVE  
The AD7923 is a 12-bit, high speed, low power, 4-channel, suc-  
cessive 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.  
GND  
Figure 1.  
PRODUCT HIGHLIGHTS  
1. High Throughput with Low Power Consumption.  
The AD7923 offers up to 200 kSPS throughput rates. At the  
maximum throughput rate with 3 V supplies, the AD7923  
dissipates just 3.6 mW of power.  
The conversion process and data acquisition are controlled by  
CS  
and the serial clock, allowing the device to easily interface  
with microprocessors or DSPs. The input signal is sampled on  
2. Four Single-Ended Inputs with a Channel Sequencer.  
CS  
the falling edge of ; the conversion is also initiated at this  
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  
point.  
The AD7923 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 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  
The conversion time for the AD7923 is determined by the serial  
clock, SCLK, frequency, since this is used as the master clock to  
control the conversion. The conversion time can be as short as  
800 ns with a 20 MHz SCLK.  
CS  
sampling instant via a  
control.  
input and once off conversion  
Rev. C  
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.  
Specifications subject to change without notice. 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.  
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 ©2002–2011 Analog Devices, Inc. All rights reserved.  
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