GENERAL DESCRIPTION

The AD7874 is a four-channel simultaneous sampling, 12-bit data acquisition system. The part contains a high speed 12-bit ADC, on-chip reference, on-chip clock and four track/hold amplifiers. This latter feature allows the four input channels to be sampled simultaneously, thus preserving the relative phase information of the four input channels, which is not possible if all four channels share a single track/hold amplifier. This makes the AD7874 ideal for applications such as phased-array sonar and ac motor controllers where the relative phase information is important.

FEATURES

Four On-Chip Track/Hold Amplifiers

Simultaneous Sampling of 4 Channels

Fast 12-Bit ADC with 8 μs Conversion Time/Channel

29 kHz Sample Rate for All Four Channels

On-Chip Reference

±10 V Input Range

±5 V Supplies

APPLICATIONS

Sonar

Motor Controllers

Adaptive Filters

Digital Signal Processing

AD7874AQ屬于集成電路（IC） > ADC/DAC - 特殊用途。亞德諾半導體技術有限公司制造生產(chǎn)的AD7874AQADC/DAC - 特殊用途該產(chǎn)品族中的產(chǎn)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(chǎn)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。