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AD7888AR

更新时间： 2024-11-15 22:38:35
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
16页 167K
描述
+2.7 V to +5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP

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AD7888AR 数据手册

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+2.7 V to +5.25 V, Micropower, 8-Channel,  
125 kSPS, 12-Bit ADC in 16-Lead TSSOP  
a
AD7888  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
Specified for VDD of +2.7 V to +5.25 V  
Flexible Power/Throughput Rate Management  
Shutdown Mode: 1 ␮A Max  
Eight Single-Ended Inputs  
Serial Interface: SPI™/QSPI™/MICROWIRE™/DSP  
Compatible  
16-Lead Narrow SOIC and TSSOP Packages  
AD7888  
AIN1  
AIN8  
I/P  
MUX  
T/H  
V
DD  
2.5V  
REF  
COMP  
APPLICATIONS  
REF IN/REF OUT  
BUF  
Battery-Powered Systems (Personal Digital Assistants,  
Medical Instruments, Mobile Communications)  
Instrumentation and Control Systems  
High Speed Modems  
CHARGE  
REDISTRIBUTION  
DAC  
SAR + ADC  
CONTROL LOGIC  
AGND  
AGND  
GENERAL DESCRIPTION  
SPORT  
The AD7888 is a high speed, low power, 12-bit ADC that oper-  
ates from a single +2.7 V to +5.25 V power supply. The AD7888  
is capable of a 125 kSPS throughput rate. The input track-and-  
hold acquires a signal in 500 ns and features a single-ended  
sampling scheme. The AD7888 contains eight single-ended  
analog inputs, AIN1 through AIN8. The analog input on each  
of these channels is from 0 to VREF. The part is capable of con-  
verting full power signals up to 2.5 MHz.  
DIN  
DOUT SCLK  
CS  
PRODUCT HIGHLIGHTS  
1. Smallest 12-bit 8-channel ADC; 16-lead TSSOP is the same  
area as an 8-lead SOIC and less than half the height.  
The AD7888 features an on-chip 2.5 V reference that can be  
used as the reference source for the A/D converter. The REF  
IN/REF OUT pin allows the user access to this reference. Alter-  
natively, this pin can be overdriven to provide an external refer-  
ence voltage for the AD7888. The voltage range for this external  
2. Lowest Power 12-bit 8-channel ADC.  
3. Flexible power management options including automatic  
power-down after conversion.  
4. Analog input range from 0 V to VREF (VDD).  
reference is from 1.2 V to VDD  
.
5. Versatile serial I/O port (SPI/QSPI/MICROWIRE/DSP  
Compatible).  
CMOS construction ensures low power dissipation of typically  
2 mW for normal operation and 3 µW in power-down mode.  
The part is available in a 16-lead narrow body small outline  
(SOIC) and a 16-lead thin shrink small outline (TSSOP) package.  
SPI and QSPI are trademarks of Motorola, Inc.  
MICROWIRE is a trademark of National Semiconductor Corporation.  
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 rights of third parties  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1999  
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AD7888AR 替代型号

型号 品牌 替代类型 描述 数据表
AD7888BR-REEL7 ADI

完全替代

 2.7 V to 5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP
AD7888ARZ-REEL7 ADI

完全替代

 2.7 V to 5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP

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AD7888AR-REEL ROCHESTER

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AD7888AR-REEL7 ROCHESTER

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AD7888ARU ADI

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AD7888ARU ROCHESTER

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 		8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16, TSSOP-16
AD7888ARU-REEL ADI

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 		2.7 V to 5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP
AD7888ARU-REEL ROCHESTER

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 		8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16, TSSOP-16
AD7888ARU-REEL7 ADI

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 		2.7 V to 5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP
AD7888ARU-REEL7 ROCHESTER

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 		8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16, TSSOP-16
AD7888ARUZ ADI

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 		2.7 V to 5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP

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