Datasheet > ADUM7701BRWZ-RL7

ADUM7701BRWZ-RL7

更新时间： 2024-11-25 01:00:27

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
22页	485K
描述
16-Bit, Isolated, Sigma-Delta Modulator

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ADUM7701BRWZ-RL7 数据手册

16-Bit, Isolated,

Sigma-Delta Modulator

ADuM7701

Data Sheet

FEATURES

FUN°TIONAL BLO°K DIAGRAM

DD2

DD1

5 MHz to 21 MHz master clock input frequency

Offset drift vs. temperature: 0.6 ꢀμV/° maximum

SNR: 86 dB typical

ADuM7701

CLK

DECODER

CLK

ENCODER

MCLKIN

MDAT

16 bits, no missing codes

Full-scale analog input voltage range: 320 mμ

ENOB: 14 bits typical

IN+

DATA

ENCODER

DATA

DECODER

_DD1: 10 mA maximum

GAIN

Σ-Δ ADC

IN–

On-board digital isolator

Operating temperature range: −40/° to +125/°

High common-mode transient immunity: 150 kμVꢀs minimum,

GND

μ_DD2= 3.3 μ

Figure 1.

Wide-body SOI°s

16-lead SOI°_W

8-lead SOI°_I° with increased creepage

Safety and regulatory approvals (pending)

UL recognition

5700 μ rms for 1 minute per UL 1577

°SA °omponent Acceptance Notice 5A

μDE °ertificate of °onformity

DIN μ μDE μ 0884-10: μ_IORM= 1270 μ_PEAK

DIN μ μDE μ 0884-11: μ_IORM= 1060 μ_PEAK

APPLI°ATIONS

Shunt current monitoring

A° motor controls

Power and solar inverters

Wind turbine inverters

Analog-to-digital and optoisolator replacement

GENERAL DES°RIPTION

The ADuM7701 is a high performance, second-order, Σ-Δ

modulator that converts an analog input signal into a high

speed, single-bit data stream, with on-chip digital isolation

based on Analog Devices, Inc., iCoupler® technology. The

device operates from a 4.5 V to 5.5 V power supply range

(V_DD1) and accepts a pseudo differential input signal of

±±50 mV (±ꢀ±0 mV full-scale). The pseudo differential input

is ideally suited to shunt voltage monitoring in high voltage

applications where galvanic isolation is required.

can be reconstructed with an appropriate sincꢀ digital filter to

achieve an 86 dB signal-to-noise ratio (SNR) at 78.1 kSPS with a

±56 decimation rate and a ±0 MHz master clock. The serial

input and output operates from a 5 V or a ꢀ V supply (V_DD±).

The serial interface is digitally isolated. High speed complementary

metal-oxide semiconductor (CMOS) technology, combined with

monolithic transformer technology, results in the on-chip

isolation providing outstanding performance characteristics,

superior to alternatives such as optocoupler devices. The

ADuM7701 device is available in both a 16-lead and an 8-lead

wide-body SOIC and has an operating temperature range of

−40°C to +1±5°C.

The analog input is continuously sampled by a high performance

analog modulator and converted to a ones density digital output

stream with a data rate of up to ±1 MHz. The original information

Rev. 0

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 registeredtrademarks are theproperty 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

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