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AD7657YSTZ-REEL

更新时间： 2024-11-21 12:26:31
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亚德诺 - ADI /
页数 文件大小 规格书
32页 588K
描述
250 kSPS, 6-Channel, Simultaneous Sampling, Bipolar 16-/14-/12-Bit ADC

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AD7657YSTZ-REEL 数据手册

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250 kSPS, 6-Channel, Simultaneous  
Sampling, Bipolar 16-/14-/12-Bit ADC  
Data Sheet  
AD7656/AD7657/AD7658  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
V
CONVST A  
CONVST B CONVST C AV  
DV  
DD  
CC  
CC  
6 independent ADCs  
True bipolar analog inputs  
CS  
Pin-/software-selectable ranges: 10 V, 5 V  
Fast throughput rate: 250 kSPS  
iCMOS process technology  
Low power  
140 mW at 250 kSPS with 5 V supplies  
Wide input bandwidth  
86.5 dB SNR at 50 kHz input frequency  
On-chip reference and reference buffers  
Parallel, serial, and daisy-chain interface modes  
High speed serial interface  
SPI-/QSPI™-/MICROWIRE™-/DSP-compatible  
Standby mode: 100 µW maximum  
64-lead LQFP  
CLK  
REF  
SER/PAR  
CONTROL  
LOGIC  
OSC  
V
DRIVE  
STBY  
BUF  
BUF  
BUF  
OUTPUT  
DRIVERS  
DOUT A  
16-/14-/12-BIT SAR  
16-/14-/12-BIT SAR  
16-/14-/12-BIT SAR  
T/H  
V1  
V2  
V3  
V4  
V5  
V6  
SCLK  
T/H  
T/H  
T/H  
T/H  
OUTPUT  
DRIVERS  
DOUT B  
OUTPUT  
DRIVERS  
DOUT C  
16-/14-/12-BIT SAR  
16-/14-/12-BIT SAR  
16-/14-/12-BIT SAR  
DATA/  
CONTROL  
LINES  
OUTPUT  
DRIVERS  
RD  
WR  
T/H  
V
APPLICATIONS  
AD7656/AD7657/AD7658  
AGND  
DGND  
Power line monitoring systems  
Instrumentation and control systems  
Multi-axis positioning systems  
SS  
Figure 1.  
GENERAL DESCRIPTION  
The AD7656/AD7657/AD76581 contain six 16-/14-/12-bit,  
fast, low power, successive approximation ADCs all in the one  
package that is designed on the iCMOS™ process (industrial  
CMOS). iCMOS is a process combining high voltage silicon  
with submicron CMOS and complementary bipolar technol-  
ogies. It enables the development of a wide range of high  
performance analog ICs, capable of 33 V operation in a  
footprint that no previous generation of high voltage parts  
could achieve. Unlike analog ICs using conventional CMOS  
processes, iCMOS components can accept bipolar input signals  
while providing increased performance, which dramatically  
reduces power consumption and package size.  
The conversion process and data acquisition are controlled  
using CONVST signals and an internal oscillator. Three  
CONVST pins allow independent, simultaneous sampling of  
the three ADC pairs. The AD7656/AD7657/AD7658 all have  
a high speed parallel and serial interface, allowing the devices  
to interface with microprocessors or DSPs. In serial interface  
mode, the parts have a daisy-chain feature that allows multiple  
ADCs to connect to a single serial interface. The AD7656/  
AD7657/AD7658 can accommodate true bipolar input signals  
in the 4 × VREF range and 2 × VREF range. The AD7656/  
AD7657/AD7658 also contain an on-chip 2.5 V reference.  
PRODUCT HIGHLIGHTS  
The AD7656/AD7657/AD7658 feature throughput rates up  
to 250 kSPS. The parts contain low noise, wide bandwidth,  
track-and-hold amplifiers that can handle input frequencies  
up to 12 MHz.  
1. Six 16-/14-/12-bit, 250 kSPS ADCs on board.  
2. Six true bipolar, high impedance analog inputs.  
3. Parallel and high speed serial interfaces.  
1 Protected by U.S. Patent No. 6,731,232.  
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  
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  
www.analog.com  
Fax: 781.461.3113 ©2006–2012 Analog Devices, Inc. All rights reserved.  
 
 
 
 
 
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AD7657YSTZ-REEL 替代型号

型号 品牌 替代类型 描述 数据表
AD7657BSTZ-REEL ADI

完全替代

 250 kSPS, 6-Channel,Simultaneous Sampling, Bipolar 12/14/16-Bit ADC
AD7657YSTZ ADI

类似代替

 250 kSPS, 6-Channel, Simultaneous Sampling, Bipolar 16-/14-/12-Bit ADC
AD7657BSTZ ADI

类似代替

 250 kSPS, 6-Channel,Simultaneous Sampling, Bipolar 12/14/16-Bit ADC

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