AD7679AST

更新时间： 2024-11-08 23:16:19

品牌	Logo	应用领域
亚德诺 - ADI		转换器模数转换器
页数	文件大小	规格书
28页	1076K
描述
18-Bit, 2.5 LSB INL, 570 kSPS SAR ADC

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AD7679AST 数据手册

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(±_REFup 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

IN+

IN–

SWITCHED

CAP DAC

D[17:0]

BUSY

PARALLEL

INTERFACE

CLOCK

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

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AD7679AST 替代型号

型号	品牌	替代类型	描述	数据表
AD7674ASTZ	ADI	完全替代	18-Bit, 2.5 LSB INL, 800 kSPS, SAR ADC
AD7678ASTZ	ADI	完全替代	18-Bit,100 kSPS PulSAR® A/D Converter
AD7679ASTZ	ADI	完全替代	18-Bit, 2.5 LSB INL, 570 kSPS SAR ADC

与AD7679AST相关器件

型号	品牌	获取价格	描述	数据表
AD7679ASTRL	ADI	获取价格	18-Bit, 2.5 LSB INL, 570 kSPS SAR ADC
AD7679ASTZ	ADI	获取价格	18-Bit, 2.5 LSB INL, 570 kSPS SAR ADC
AD7679ASTZRL	ADI	获取价格	暂无描述
AD7679CB1	ADI	获取价格	18-Bit, 2.5 LSB INL, 570 kSPS SAR ADC
AD767A	ADI	获取价格	Microprocessor-Compatible 12-Bit D/A Converter
AD767ACHIPS	ADI	获取价格	Microprocessor-Compatible 12-Bit D/A Converter
AD767AD	ADI	获取价格	Microprocessor-Compatible 12-Bit D/A Converter
AD767BD	ADI	获取价格	Microprocessor-Compatible 12-Bit D/A Converter
AD767BD	ROCHESTER	获取价格	SERIAL INPUT LOADING, 3 us SETTLING TIME, 12-BIT DAC, CDIP24, CERAMIC, DIP-24
AD767JN	ADI	获取价格	Microprocessor-Compatible 12-Bit D/A Converter

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