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AD7357BCPZ

更新时间： 2024-01-22 08:29:45
品牌 Logo 应用领域
亚德诺 - ADI 转换器
页数 文件大小 规格书
25页 690K
描述
Differential Input, Dual, Simultaneous Sampling

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AD7357BCPZ 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：HVQCCN,
针数：18Reach Compliance Code：compliant
风险等级：2.17最大模拟输入电压：2.975 V
转换器类型：ADC, SUCCESSIVE APPROXIMATIONJESD-30 代码：R-XQCC-N18
JESD-609代码：e3长度：5 mm
最大线性误差 (EL)：0.0183%湿度敏感等级：3
模拟输入通道数量：2位数：14
功能数量：1端子数量：18
最高工作温度：125 °C最低工作温度：-40 °C
输出位码：BINARY输出格式：SERIAL
封装主体材料：UNSPECIFIED封装代码：HVQCCN
封装形状：RECTANGULAR封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260采样速率：4.2 MHz
采样并保持/跟踪并保持：SAMPLE座面最大高度：0.8 mm
标称供电电压：2.5 V表面贴装：YES
温度等级：AUTOMOTIVE端子面层：Tin (Sn)
端子形式：NO LEAD端子节距：0.65 mm
端子位置：QUAD处于峰值回流温度下的最长时间：30
宽度：4 mmBase Number Matches：1

AD7357BCPZ 数据手册

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Differential Input, Dual, Simultaneous  
Sampling, 4.2 MSPS, 14-Bit, SAR ADC  
Data Sheet  
AD7357  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
V
V
DRIVE  
DD  
Dual 14-bit SAR ADC  
Simultaneous sampling  
AD7357  
V
V
INA+  
Throughput rate: 4.2 MSPS per channel  
Specified for a VDD of 2.5 V  
14-BIT  
SUCCESSIVE  
APPROXIMATION  
ADC  
T/H  
SDATA  
INA–  
A
REF  
A
Power dissipation: 36 mW at 4.2 MSPS  
On-chip reference: 2.048 V 0.25%, 6 ppm/°C  
Dual conversion with read  
BUF  
SCLK  
CS  
CONTROL  
LOGIC  
REF  
High speed serial interface  
BUF  
SPI-/QSPI-/MICROWIRE-/DSP-compatible  
−40°C to +125°C Y grade operation, −40°C to +85°C B grade  
operation  
16-lead TSSOP and 18-lead LFCSP packages  
Qualified for automotive applications  
REF  
V
B
14-BIT  
SUCCESSIVE  
APPROXIMATION  
ADC  
SDATA  
B
INB+  
INB–  
T/H  
V
AGND  
AGND  
REFGND  
DGND  
APPLICATIONS  
Figure 1.  
Automotive radar  
Data acquisition systems  
Motion control  
I and Q demodulation  
RFID readers  
GENERAL DESCRIPTION  
PRODUCT HIGHLIGHTS  
The AD73571 is a dual, 14-bit, high speed, low power, successive  
approximation analog-to-digital converter (ADC) that operates  
from a single 2.5 V power supply and features throughput rates  
up to 4.2 MSPS. The device contains two ADCs, each preceded  
by a low noise, wide bandwidth track-and-hold circuit that can  
handle input frequencies in excess of 110 MHz.  
The conversion process and data acquisition use standard control  
inputs allowing for easy interfacing to microprocessors or  
digital signal processors (DSPs). The input signal is sampled on  
1. Two Complete ADC Functions.  
These functions allow simultaneous sampling and conversion  
of two channels. The conversion result of both channels  
is simultaneously available on separate data lines or in  
succession on one data line if only one serial port is available.  
2. High Throughput with Low Power Consumption.  
The AD7357 offers a 4.2 MSPS throughput rate with 36 mW  
power consumption.  
3. Simultaneous Sampling.  
The device features two standard successive approximation  
ADCs with accurate control of the sampling instant via a  
input and once off conversion control.  
CS  
the falling edge of ; a conversion is also initiated at this point.  
CS  
The conversion time is determined by the SCLK frequency.  
The AD7357 uses advanced design techniques to achieve very  
low power dissipation at high throughput rates. With a 2.5 V  
supply and a 4.2 MSPS throughput rate, the device consumes  
14 mA typically. The device also offers flexible power and  
throughput rate management options.  
Table 1. Related Devices  
Generic Resolution Throughput Analog Input  
AD7356  
AD7352  
AD7266  
12-bit  
12-bit  
12-bit  
5 MSPS  
3 MSPS  
2 MSPS  
Differential  
Differential  
The analog input range for the device is the differential common  
Differential/single-  
ended  
mode  
VREF/2. The AD7357 has an on-chip 2.048 V reference  
that can be overdriven when an external reference is preferred.  
AD7866  
AD7366  
AD7367  
12-bit  
12-bit  
14-bit  
1 MSPS  
1 MSPS  
1 MSPS  
Single-ended  
Single-ended bipolar  
Single-ended bipolar  
The AD7357 is available in a 16-lead thin shrink small outline  
package (TSSOP) and an 18-lead lead frame chip scale package  
(LFCSP).  
1 Protected by U.S. Patent No. 6,681,332.  
Rev. E  
Document Feedback  
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 ©2009–2015 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
 
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