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AD7762BSVZ-REEL

更新时间： 2024-11-26 04:30:47

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	566K
描述
625 kSPS, 24-Bit, 109 dB ADC With On-Chip Buffer

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数据手册
替代型号

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AD7762BSVZ-REEL 数据手册

625 kSPS, 24-Bit, 109 dB Σ−Δ ADC

With On-Chip Buffer

AD7762

FEATURES

FUNCTIONAL BLOCK DIAGRAM

120 dB dynamic range at 78 kHz output data rate

109 dB dynamic range at 625 kHz output data rate

112 dB SNR at 78 kHz output data rate

106 dB SNR at 625 kHz output data rate

625 kHz maximum fully filtered output word rate

Programmable over-sampling rate (32× to 256×)

Fully differential modulator input

IN– IN+

MULTIBIT

DD1

DD2

DD3

DD4

DIFF

Σ-Δ

MODULATOR

REF+

RECONSTRUCTION

BUF

DECAPA/B

BIAS

On-chip differential amplifier for signal buffering

Low-pass finite impulse response (FIR) filter with default or

user-programmable coefficients

Overrange alert bit

Digital offset and gain correction registers

Filter bypass modes

PROGRAMMABLE

DECIMATION

AD7762

AGND

DRIVE

MCLK

SYNC

CONTROL LOGIC

I/O

OFFSET AND GAIN

REGISTERS

DGND

FIR FILTER

ENGINE

RESET

Low power and power-down modes

Synchronization of multiple devices via SYNC pin

CS RD/WR DRDY DB0 TO DB15

Figure 1.

APPLICATIONS

Data acquisition systems

Vibration analysis

Instrumentation

GENERAL DESCRIPTION

The AD7762 is a high performance, 24-bit Σ-Δ analog-to-

digital converter (ADC). It combines wide input bandwidth

and high speed with the benefits of Σ-Δ conversion with a

performance of 106 dB SNR at 625 kSPS, making it ideal for

high speed data acquisition. Wide dynamic range combined

with significantly reduced antialiasing requirements simplify

the design process. An integrated buffer to drive the reference,

a differential amplifier for signal buffering and level shifting, an

overrange flag, internal gain and offset registers, and a low-pass

digital FIR filter make the AD7762 a compact, highly integrated

data acquisition device requiring minimal peripheral com-

ponent selection. In addition, the device offers programmable

decimation rates, and the digital FIR filter can be adjusted if

the default characteristics are not appropriate to the application.

The AD7762 is ideal for applications demanding high SNR

without a complex front end signal processing design.

coefficients. The sample rate, filter corner frequencies, and output

word rate are set by a combination of the external clock frequency

and the configuration registers of the AD7762.

The reference voltage supplied to the AD7762 determines the

analog input range. With a 4 V reference, the analog input range

is ±±.2 V differential biased around a common mode of 2 V.

This common-mode biasing can be achieved using the on-chip

differential amplifier, further reducing the external signal

conditioning requirements.

The AD7762 is available in an exposed paddle, 64-lead TQFP

and is specified over the industrial temperature range from

−40°C to +85°C.

Table 1. Related Devices

Part No.

AD7760

AD7763

Description

24-bit, 2.5 MSPS, 100 dB Σ-Δ, parallel interface

24-bit, 625 kSPS, 109 dB Σ-Δ, serial interface

The differential input is sampled at up to 40 MSPS by an analog

modulator. The modulator output is processed by a series of low-

pass filters, the final filter having default or user-programmable

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 registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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AD7762BSVZ-REEL 替代型号

型号	品牌	替代类型	描述	数据表
AD7762BSVZ	ADI	类似代替	625 kSPS, 24-Bit, 109 dB ADC With On-Chip Buffer

与AD7762BSVZ-REEL相关器件

型号	品牌	获取价格	描述	数据表
AD7763	ADI	获取价格	24-Bit, 625 kSPS, 109 dB ヒ-ツ ADC with On-Chip
AD7763BCP	ADI	获取价格	IC 1-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, QCC48, LFCSP-48, Analog to Digital Converte
AD7763BSVZ	ADI	获取价格	24-Bit, 625 kSPS, 109 dB ヒ-ツ ADC with On-Chip
AD7763BSVZ-REEL	ADI	获取价格	24-Bit, 625 kSPS, 109 dB ヒ-ツ ADC with On-Chip
AD7764	ADI	获取价格	24-Bit 312 kSPS 109dB ADC With On-Chip Buffers Serial Interface
AD7764_07	ADI	获取价格	24-Bit, 312 kSPS, 109 dB ヒ-ツ ADC with On-Chip
AD7764BRUZ	ADI	获取价格	24-Bit 312 kSPS 109dB ADC With On-Chip Buffers Serial Interface
AD7764BRUZ-REEL7	ADI	获取价格	24-Bit, 312 kSPS, 109 dB ヒ-ツ ADC with On-Chip
AD7765	ADI	获取价格	24-Bit, 156 kSPS,112dB ADC, With On-Chip Buffers, Serial Interface
AD7765_07	ADI	获取价格	24-Bit, 156 kSPS, 112 dB ヒ-ツ ADC with On-Chip

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