AD7400AYRWZ-RL屬于集成電路（IC）的ADC/DAC-特殊用途。由亞德諾半導體技術有限公司制造生產的AD7400AYRWZ-RLADC/DAC - 特殊用途該產品族中的產品可用于模擬和數(shù)字表示的信息轉換，適用于特定用例，或集成了通用數(shù)據(jù)轉換器中不常見的其他功能。例如針對超聲或汽車雷達應用集成了低噪聲放大器和可變增益級的器件、注重音頻和視頻的產品、在段碼式顯示器上集成顯示測量值功能的器件、集成輸入輸出電氣隔離的器件等。

GENERAL DESCRIPTION

The AD7400A1 is a second-order, Σ-Δ modulator that converts

an analog input signal into a high speed, 1-bit data stream with on-chip digital isolation based on Analog Devices, Inc., iCoupler? technology. The AD7400A operates from a 5 V power supply and accepts a differential input signal of ±250 mV (±320 mV

full-scale). The analog input is sampled continuously by the

analog modulator, eliminating the need for external sample-

and-hold circuitry. The input information is contained in the

output stream as a density of ones with a data rate of 10 MHz.

The original information can be reconstructed with an appropriate

digital filter. The serial I/O can use a 5 V or a 3 V supply (VDD2).

The serial interface is digitally isolated. High speed CMOS,

combined with monolithic air core transformer technology, means the on-chip isolation provides outstanding performance characteristics superior to alternatives such as optocoupler devices. The part contains an on-chip reference and has an

operating temperature range of ?40°C to +125°C. The AD7400A

is offered in a 16-lead SOIC package.

FEATURES 10 MHz clock rate Second-order modulator

16 bits, no missing codes

±2 LSB INL typical at 16 bits 1.5 μV/°C typical offset drift On-board digital isolator On-board reference ±250 mV analog input range Low power operation: 15.5 mA typical at 5.5 V ?40°C to +125°C operating range

16-lead SOIC package

AD7401A, external clock version in 16-lead SOIC

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

VIORM = 891 V peak

APPLICATIONS

AC motor controls

Shunt current monitoring

Data acquisition systems Analog-to-digital and opto-isolator replacements