Datasheet > AD7768BSTZ

AD7768BSTZ

更新时间： 2024-11-11 14:17:43

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
100页	2326K
描述
8-Channel, 24-Bit, Simultaneous Sampling ADC, Power Scaling, 110.8 kHz BW

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替代型号

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AD7768BSTZ 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...100

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AD7768BSTZ 替代型号

型号	品牌	替代类型	描述	数据表
AD7768BSTZ-RL	ADI	类似代替	8-/4-Channel, 24-Bit, Simultaneous Sampling ADCs with Power Scaling, 110.8 kHz BW

与AD7768BSTZ相关器件

型号	品牌	获取价格	描述	数据表
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
AD7769JP	ADI	获取价格	LC2MOS Analog I/O Port
AD7769KN	ETC	获取价格	CODEC， Single
AD7769KP	ETC	获取价格	CODEC， Single
AD776AQ	ADI	获取价格	16-Bit 100 kSPS Oversampling ADC

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