AD7405BRIZ集成电路（IC）的ADC/DAC-特殊用途规格书PDF中文资料

AD7405BRIZ属于集成电路（IC）的ADC/DAC-特殊用途。由亚德诺半导体技术有限公司制造生产的AD7405BRIZADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。

GENERAL DESCRIPTION

The AD74051 is a high performance, second-order, Σ-Δ modulator that converts an analog input signal into a high speed, single-bit LVDS data stream, with on-chip digital isolation based on Analog Devices, Inc., iCoupler® technology. The AD7405 operates from a 4.5 V to 5.5 V (VDD1) power supply and accepts a differential input signal of ±250 mV (±320 mV full-scale). The differential input is ideally suited to shunt voltage monitoring in high voltage applications where galvanic isolation is required.

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 20 MHz. The original information

can be reconstructed with an appropriate digital filter to achieve 88 dB SNR at 78.1 kSPS. The LVDS input/output can use a 3 V to 5.5 V supply (VDD2).

The LVDS interface is digitally isolated. The LVDS interface technology, combined with monolithic transformer technology, means the on-chip isolation provides outstanding performance characteristics, superior to alternatives such as optocoupler devices. The AD7405 device is offered in a 16-lead, wide-body SOIC_IC package and has an operating temperature range of −40°C to +125°C.

FEATURES

5 MHz to 20 MHz external clock input rate

16 bits, no missing codes

Signal-to-noise ratio (SNR): 88 dB typical

Effective number of bits (ENOB): 14.2 bits typical

Typical offset drift vs. temperature: 1.6 μV/°C

Low voltage differential signaling (LVDS) interface

On-board digital isolator

On-board reference

Full-scale analog input voltage range: ±320 mV

−40°C to + 125°C operating temperature range

High common-mode transient immunity: >25 kV/μs

16-lead, wide-body SOIC_IC, with increased creepage package

Safety and regulatory approvals

UL recognition

5000 V rms for 1 minute per UL 1577

CSA Component Acceptance Notice 5A

VDE Certificate of Conformity

DIN V VDE V 0884-10 (VDE V 0884-10):2006-12

Maximum working insulation voltage (VIORM): 1250 VPEAK

APPLICATIONS

Shunt current monitoring

AC motor controls

Power and solar inverters

Wind turbine inverters

Data acquisition systems

Analog-to-digital and opto-isolator replacements