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属于集成电路（IC） > ADC/DAC - 特殊用途。亚德诺半导体技术有限公司制造生产的AD7874AQADC/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。