AD7764BRUZ

更新时间： 2024-02-05 23:50:25

品牌	Logo	应用领域
亚德诺 - ADI		转换器模数转换器光电二极管 PC
页数	文件大小	规格书
21页	325K
描述
24-Bit 312 kSPS 109dB ADC With On-Chip Buffers Serial Interface

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技术参数
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AD7764BRUZ 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	TSSOP
包装说明：	ROHS COMPLIANT, MO-153AE, TSSOP-28	针数：	28
Reach Compliance Code：	unknown	风险等级：	5.77
最大模拟输入电压：	3.276 V	最小模拟输入电压：	-3.276 V
转换器类型：	ADC, DELTA-SIGMA	JESD-30 代码：	R-PDSO-G28
JESD-609代码：	e3	长度：	9.7 mm
湿度敏感等级：	1	模拟输入通道数量：	1
位数：	24	功能数量：	1
端子数量：	28	最高工作温度：	85 °C
最低工作温度：	-40 °C	输出位码：	BINARY
输出格式：	SERIAL	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
采样速率：	0.312 MHz	座面最大高度：	1.2 mm
标称供电电压：	5 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	MATTE TIN
端子形式：	GULL WING	端子节距：	0.65 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	4.4 mm	Base Number Matches：	1

AD7764BRUZ 数据手册

24-Bit, 312 kSPS,109dB Σ∆ ADC,

With On-Chip Buffers, Serial Interface

Preliminary Technical Data

AD7764

FUNCTIONAL BLOCK DIAGRAM

FEATURES

High performance 24-bit Sigma-Delta ADC

112dB SNR at 78kHz output data rate

106dB SNR at 312 kHz output data rate

312 kHz maximum fully filtered output word rate

Pin-selectable over-sampling rate (64x to 256x)

Flexible SPI serial interface

Fully differential modulator input

On-chip differential amplifier for signal buffering

On-chip Reference Buffer

Low pass FIR filter

Over-range alert pin

Digital gain correction registers

Power down mode

A- V A+

OUT OUT

+ V

MCLK

IN IN

DD1

DD2

DD3

A+

A-

DIFF

Multi-Bit

Sigma-Delta

Modulator

REF

BUF

Reconstruction

Decimation

OVERRANGE

DEC_RATE

DECAP

REFGND

AD7764

Interface Logic

and

SYNC

FIR Filter

Engine

Offset & Gain Correction

RESET/PWRDN

Registers

BIAS

SYNC

Synchronization of multiple devices via

Daisy Chaining

Figure 1.

APPLICATIONS

Data acquisition systems

Vibration analysis

Instrumentation

The differential input is sampled at up to 40MS/s by an analog

modulator. The modulator output is processed by a series of

low-pass filters. The sample rate, filter corner frequencies and

output word rate are determined by the external clock

frequency supplied to the AD7764.

PRODUCT OVERVIEW

The AD7764 high performance, 24-bit, sigma delta analog to

digital converter combines wide input bandwidth, high speed

and performance of 109dB at a 312Khz output data rate with

the benefits of sigma delta conversion, while, also offering

excellent DC specifications which make the converter ideal for

high speed data acquisition of AC signals where DC data is also

a requirement.

The reference voltage supplied to the AD7764 determines the

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

is 3.2V differential biased around a common mode of 2V. This

common mode biasing can be achieved using the on-chip

differential amplifiers, further reducing the external signal

conditioning requirements.

A wide dynamic range combined with significantly reduced

anti-aliasing requirements simplifies the design process. The

AD7764 offers pin-selectable decimation rates of 64x, 128x,

and 256x. Other features include an integrated buffer to drive

the reference, a differential amplifier for signal buffering and

level shifting.

The AD7764 is available in a 28-lead TSSOP package and is

specified over the industrial temperature range from -40°C to

+85°C

RELATED DEVICES

The addition of an internal gain register, an over-range alert

pin, and a low-pass digital FIR filter make the AD7764 a

compact highly integrated data acquisition device requiring

minimal peripheral component selection. The AD7764 is

ideally suited to applications demanding high SNR without

necessitating design of complex front end signal processing.

Part no.

AD7760

AD7762

AD7763

AD7765

Description

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

24-bit, 625ksps, 109dB Σ∆, parallel interface

24-bit, 625ksps, 109dB Σ∆, serial interface

24-bit, 156kSPS, 109dB Σ∆, serial interface

Rev. PrC

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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中文翻译

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AD7764BRUZ 替代型号

型号	品牌	替代类型	描述	数据表
AD7764BRUZ-REEL7	ADI	完全替代	24-Bit, 312 kSPS, 109 dB ヒ-ツ ADC with On-Chip
AD7765BRUZ-REEL7	ADI	类似代替	24-Bit, 156 kSPS, 112 dB ヒ-ツ ADC with On-Chip
AD7765BRUZ	ADI	类似代替	24-Bit, 156 kSPS,112dB ADC, With On-Chip Buffers, Serial Interface

与AD7764BRUZ相关器件

型号	品牌	获取价格	描述	数据表
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
AD7765BRUZ	ADI	获取价格	24-Bit, 156 kSPS,112dB ADC, With On-Chip Buffers, Serial Interface
AD7765BRUZ-REEL7	ADI	获取价格	24-Bit, 156 kSPS, 112 dB ヒ-ツ ADC with On-Chip
AD7766	ADI	获取价格	24-Bit, 10mW, 125ksps Analog to Digital Converter in 16 lead TSSOP
AD7766_17	ADI	获取价格	128 kSPS/64 kSPS/32 kSPS ADCs
AD7766-1	ADI	获取价格	24-Bit, 8.5 mW, 109 dB, 128/64/32 kSPS ADCs
AD7766-2	ADI	获取价格	24-Bit, 8.5 mW, 109 dB, 128/64/32 kSPS ADCs
AD7766BRUZ	ADI	获取价格	24-Bit, 10mW, 125ksps Analog to Digital Converter in 16 lead TSSOP

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