Datasheet > AD7768-4

AD7768-4

更新时间： 2023-09-23 06:49:14

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
99页	2306K
描述
4通道、24位同步采样ADC，具备功耗调节功能、110.8 kHz带宽

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技术参数
数据手册

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AD7768-4 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	LFQFP,
针数：	64	Reach Compliance Code：	compliant
风险等级：	2.32	最大模拟输入电压：	5.5 V
最小模拟输入电压：	-1 V	转换器类型：	ADC, DELTA-SIGMA
JESD-30 代码：	S-PQFP-G64	长度：	10 mm
最大线性误差 (EL)：	0.0007%	湿度敏感等级：	3
模拟输入通道数量：	4	位数：	24
功能数量：	1	端子数量：	64
最高工作温度：	105 °C	最低工作温度：	-40 °C
输出位码：	2'S COMPLEMENT BINARY	输出格式：	SERIAL, PARALLEL, WORD
封装主体材料：	PLASTIC/EPOXY	封装代码：	LFQFP
封装形状：	SQUARE	封装形式：	FLATPACK, LOW PROFILE, FINE PITCH
峰值回流温度（摄氏度）：	260	采样速率：	0.256 MHz
座面最大高度：	1.6 mm	标称供电电压：	5 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	30
宽度：	10 mm	Base Number Matches：	1

AD7768-4 数据手册

8-/4-Channel, 24-Bit, Simultaneous Sampling

ADCs with Power Scaling, 110.8 kHz BW

Data Sheet

AD7768/AD7768-4

Low latency sinc5 filter

FEATURES

Wideband brick wall filter: 0.005 dB pass-band ripple

from dc to 102.4 kHz

Analog input precharge buffers

Precision ac and dc performance

8-/4-channel simultaneous sampling

256 kSPS maximum ADC output data rate per channel

108 dB dynamic range

Power supply

AVDD1 = 5.0 V, AVDD2 = 2.25 V to 5.0 V

IOVDD = 2.5 V to 3.3 V or IOVDD = 1.8 V

64-lead LQFP package, no exposed pad

Temperature range: −40°C to +105°C

110.8 kHz maximum input bandwidth (−3 dB bandwidth)

−120 dB total harmonic distortion (THD) typical

2 ppm of full-scale range (FSR) integral nonlinearity

(INL), 50 µV offset error, 30 ppm gain error

Optimized power dissipation vs. noise vs. input bandwidth

Selectable power, speed, and input bandwidth (BW) modes

Fast: highest speed; 110.8 kHz BW, 51.5 mW per channel

Median: half speed, 55.4 kHz BW, 27.5 mW per channel

Eco: lowest power, 13.8 kHz BW, 9.375 mW per channel

Input BW range: dc to 110.8 kHz

APPLICATIONS

Data acquisition systems: USB/PXI/Ethernet

Instrumentation and industrial control loops

Audio test and measurement

Vibration and asset condition monitoring

3-phase power quality analysis

Programmable input bandwidth/sampling rates

Cyclic redundancy check (CRC) error checking on data interface

Daisy-chaining

Sonar

High precision medical electroencephalogram (EEG)/

electromyography (EMG)/electrocardiogram (ECG)

Linear phase digital filter

FUNCTIONAL BLOCK DIAGRAM

AVDD1A,

AVDD1B

AVDD2A, REGCAPA,

REFx+ REFx–

AVDD2B REGCAPB DGND

IOVDD

DREGCAP

BUFFERED

VCM

1.8V

LDO

1.8V

LDO

PRECHARGE

REFERENCE

BUFFERS

VCM

×8

VCM

SYNC_IN

SYNC_OUT

START

AIN0+

AIN0–

AIN1+

AIN1–

OFFSET,

Σ-Δ

RESET

DIGITAL

FILTER

ENGINE

CH 0

GAIN PHASE

CORRECTION

ADC

FORMAT1*

FORMAT0

OFFSET,

GAIN PHASE

CORRECTION

Σ-Δ

ADC

CH 1

ADC

OUTPUT

DATA

DRDY

SINC5

LOW LATENCY

FILTER

AIN2+

AIN2–

DCLK

SERIAL

OFFSET,

GAIN PHASE

CORRECTION

Σ-Δ

ADC

CH 2

INTERFACE

DOUT0

DOUT1

DOUT2

DOUT3

DOUT4*

DOUT5*

DOUT6*, DIN

DOUT7*

AIN3+

AIN3–

AIN4+

AIN4–

OFFSET,

GAIN PHASE

CORRECTION

Σ-Δ

ADC

CH 3

CH 4*

CH 5*

WIDEBAND

LOW RIPPLE

FILTER

OFFSET,

GAIN PHASE

CORRECTION

Σ-Δ

ADC

AIN5+

AIN5–

OFFSET,

GAIN PHASE

CORRECTION

Σ-Δ

ADC

ST0/CS

SPI

ST1*/SCLK

DEC0/SDO

DEC1/SDI

CONTROL

INTERFACE

AIN6+

AIN6–

OFFSET,

Σ-Δ

CH 6*

CH 7*

GAIN PHASE

CORRECTION

ADC

AIN7+

AIN7–

OFFSET,

GAIN PHASE

CORRECTION

Σ-Δ

ADC

PIN/SPI

×16 ANALOG INPUT

PRECHARGE BUFFERS (P)

AD7768/AD7768-4

AVSS

XTAL2/MCLK XTAL1

MODE3/GPIO3 FILTER/GPIO4

*THESE CHANNELS/PINS EXIST ONLY ON THE AD7768.

MODE0/GPIO0

Figure 1.

Rev. A

Document Feedback

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 owners.

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

Tel: 781.329.4700

Technical Support

www.analog.com

12 3 4 5 6 7...99

中文翻译

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与AD7768-4相关器件

型号	品牌	获取价格	描述	数据表
AD7768-4BSTZ	ADI	获取价格	4-Channel, 24-Bit, Simultaneous Sampling ADC, Power Scaling, 110.8 kHz BW
AD7768-4BSTZ-RL	ADI	获取价格	8-/4-Channel, 24-Bit, Simultaneous Sampling ADCs with Power Scaling, 110.8 kHz BW
AD7768-4BSTZ-RL7	ADI	获取价格	8-/4-Channel, 24-Bit, Simultaneous Sampling ADCs with Power Scaling, 110.8 kHz BW
AD7768BSTZ	ADI	获取价格	8-Channel, 24-Bit, Simultaneous Sampling ADC, Power Scaling, 110.8 kHz BW
AD7768BSTZ-RL	ADI	获取价格	8-/4-Channel, 24-Bit, Simultaneous Sampling ADCs with Power Scaling, 110.8 kHz BW
AD7768BSTZ-RL7	ADI	获取价格	8-/4-Channel, 24-Bit, Simultaneous Sampling ADCs with Power Scaling, 110.8 kHz BW
AD7769	ADI	获取价格	LC2MOS Analog I/O Port
AD7769AN	ADI	获取价格	LC2MOS Analog I/O Port
AD7769AP	ADI	获取价格	LC2MOS Analog I/O Port
AD7769JN	ADI	获取价格	LC2MOS Analog I/O Port

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