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AD7927BRU-REEL PDF预览

AD7927BRU-REEL

更新时间： 2024-01-30 23:14:53
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
28页 458K
描述
8-Channel, 200 kSPS, 12-Bit ADC with Sequencer in 20-Lead TSSOP

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AD7927BRU-REEL 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：TSSOP
包装说明：TSSOP, TSSOP20,.25针数：20
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.3
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 APPROXIMATION
JESD-30 代码：R-PDSO-G20JESD-609代码：e0
长度：6.5 mm最大线性误差 (EL)：0.0244%
湿度敏感等级：1模拟输入通道数量：8
位数：12功能数量：1
端子数量：20最高工作温度：85 °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：TSSOP20,.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）：240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温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn85Pb15)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

AD7927BRU-REEL 数据手册

 浏览型号AD7927BRU-REEL的Datasheet PDF文件第2页浏览型号AD7927BRU-REEL的Datasheet PDF文件第3页浏览型号AD7927BRU-REEL的Datasheet PDF文件第4页浏览型号AD7927BRU-REEL的Datasheet PDF文件第5页浏览型号AD7927BRU-REEL的Datasheet PDF文件第6页浏览型号AD7927BRU-REEL的Datasheet PDF文件第7页 
8-Channel, 200 kSPS, 12-Bit ADC  
with Sequencer in 20-Lead TSSOP  
AD7927  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
AV  
DD  
Fast throughput rate: 200 kSPS  
Specified for AVDD of 2.7 V to 5.25 V  
Low power  
3.6 mW maximum at 200 kSPS with 3 V supply  
7.5 mW maximum at 200 kSPS with 5 V supply  
8 (single-ended) inputs with sequencer  
Wide input bandwidth  
REF  
IN  
V
0
IN  
12-BIT  
SUCCESSIVE  
APPROXIMATION  
ADC  
T/H  
INPUT  
MUX  
70 dB minimum SINAD at 50 kHz input frequency  
Flexible power/serial clock speed management  
No pipeline delays  
High speed serial interface SPI™-, QSPI™-, MICROWIRE™-,  
DSP-compatible  
V
7
IN  
SCLK  
DOUT  
DIN  
CONTROL LOGIC  
SEQUENCER  
Shutdown mode: 0.5 μA maximum  
20-lead TSSOP  
CS  
AD7927  
V
DRIVE  
GENERAL DESCRIPTION  
AGND  
Figure 1.  
The AD7927 is a 12-bit, high speed, low power, 8-channel,  
successive approximation ADC. The part operates from a  
single 2.7 V to 5.25 V power supply and features throughput  
rates up to 200 kSPS. The part 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 AD7927 offers up to 200 kSPS throughput rates. At the  
maximum throughput rate with 3 V supplies, the AD7927  
dissipates 3.6 mW of power maximum.  
The conversion process and data acquisition are controlled using  
2. Eight Single-Ended Inputs with a Channel Sequencer.  
A consecutive sequence of channels can be selected on  
which the ADC cycles and converts.  
CS  
and the serial clock signal, allowing the device to easily interface  
with microprocessors or DSPs. The input signal is sampled on the  
CS  
falling edge of  
and the conversion is also initiated at this  
point. There are no pipeline delays associated with the part.  
3. Single-Supply Operation with VDRIVE Function.  
The AD7927 operates from a single 2.7 V to 5.25 V supply.  
The VDRIVE function allows the serial interface to connect  
directly to either 3 V or 5 V processor systems independent  
The AD7927 uses advanced design techniques to achieve  
very low power dissipation at maximum throughput rates. At  
maximum throughput rates, the AD7927 consumes 1.2 mA  
maximum with 3 V supplies; with 5 V supplies, the current  
consumption is 1.5 mA maximum.  
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 maxi-  
mum when in full shutdown.  
Through the configuration of the control register, the analog  
input range for the part can be selected as 0 V to REFIN or 0 V  
to 2 × REFIN, with either straight binary or twos complement  
output coding. The AD7927 features eight single-ended analog  
inputs with a channel sequencer to allow a preprogrammed  
selection of channels to be converted sequentially.  
5. No Pipeline Delay.  
The conversion time for the AD7927 is determined by the  
SCLK frequency, as this is also used as the master clock to  
control the conversion. The conversion time may be as short  
as 800 ns with a 20 MHz SCLK.  
The part features a standard successive approximation ADC  
CS  
with a  
input pin, which allows for accurate control of  
each sampling instant.  
Rev. B  
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 registeredtrademarks arethe 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 ©2003–2008 Analog Devices, Inc. All rights reserved.  
 
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AD7927BRU-REEL 替代型号

型号 品牌 替代类型 描述 数据表
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