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AD7650ACPRL

更新时间： 2024-11-06 13:00:47
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亚德诺 - ADI /
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28页 1076K
描述
1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, QCC48, LFCSP-48

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18-Bit, 2.5 LSB INL, 570 kSPS SAR ADC  
AD7679  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
PDBUF  
REF  
REFGND  
DVDD DGND  
18-bit resolution with no missing codes  
No pipeline delay (SAR architecture)  
Differential input range: ±±REF (±REF up to 5 ±)  
Throughput: 570 kSPS  
AGND  
AVDD  
OVDD  
OGND  
AD7679  
SERIAL  
REFBUFIN  
PORT  
INL: ±2.5 LSB max (±9.5 ppm of full scale)  
Dynamic range : 103 dB typ (±REF = 5 ±)  
S/(N+D): 100 dB typ @ 2 kHz (±REF = 5 ±)  
Parallel (18-,16-, or 8-bit bus) and serial 5 ±/3 ± interface  
SPI®/QSPI™/MICROWIRE™/DSP compatible  
On-board reference buffer  
18  
IN+  
IN–  
SWITCHED  
CAP DAC  
D[17:0]  
BUSY  
PARALLEL  
INTERFACE  
RD  
CS  
CLOCK  
PD  
CONTROL LOGIC AND  
MODE0  
MODE1  
CALIBRATION CIRCUITRY  
RESET  
Single 5 ± supply operation  
Power dissipation:76 mW @ 500 kSPS  
150 µW @ 1 kSPS  
CNVST  
03085–0–001  
48-lead LQFP or 48-lead LFCSP package  
Pin-to-pin compatible upgrade of AD7674/AD7676/AD7678  
Figure 1. Functional Block Diagram  
Table 1. PulSAR Selection  
APPLICATIONS  
800–  
1000  
CT scanners  
Type/kSPS  
100–250  
500–570  
High dynamic data acquisition  
Geophone and hydrophone sensors  
Σ-∆ replacement (low power, multichannel)  
Instrumentation  
Spectrum analysis  
Medical instruments  
Pseudo-  
Differential  
AD7651  
AD7650/AD7652 AD7653  
AD7660/AD7661 AD7664/AD7666 AD7667  
True Bipolar  
AD7663  
AD7675  
AD7665  
AD7676  
AD7671  
AD7677  
True  
Differential  
18-Bit  
AD7678  
AD7679  
AD7674  
Multichannel/  
Simultaneous  
AD7654  
AD7655  
GENERAL DESCRIPTION  
The AD7679 is an 18-bit, 570 kSPS, charge redistribution SAR,  
fully differential analog-to-digital converter that operates on a  
single 5 V power supply. The part contains a high speed 18-bit  
sampling ADC, an internal conversion clock, an internal  
reference buffer, error correction circuits, and both serial and  
parallel system interface ports.  
PRODUCT HIGHLIGHTS  
1. High Resolution, Fast Throughput.  
The AD7679 is a 570 kSPS, charge redistribution, 18-bit  
SAR ADC (no latency).  
2. Excellent Accuracy.  
The part is available in a 48-lead LQFP or 48-lead LFCSP with  
operation specified from –40°C to +85°C.  
The AD7679 has a maximum integral nonlinearity of  
2.5 LSB with no missing 18-bit codes.  
3. Serial or Parallel Interface.  
Versatile parallel (18-, 16-, or 8-bit bus) or 3-wire serial  
interface arrangement compatible with both 3 V and  
5 V logic.  
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 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 companies.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.326.8703  
www.analog.com  
© 2003 Analog Devices, Inc. All rights reserved.  
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AD7650ACPRL 替代型号

型号 品牌 替代类型 描述 数据表
AD7650ACPZRL ADI

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 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, QCC48, 7 X 7 MM, MO-220V
AD7650ACPZ ADI

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 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, QCC48, LFCSP-48

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AD7650ASTRL ROCHESTER

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 		1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP48, LQFP-48
AD7650ASTZ ADI

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 		16-Bit, 570 kSPS, Unipolar CMOS Successive Approximation ADC
AD7650ASTZ ROCHESTER

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 		1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP48, LQFP-48
AD7650ASTZRL ADI

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