ad8401
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ad8401

8-Bit I/O Port

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The AD8401 is a complete data acquisition and control system containing ADC, DAC, 4-channel MUX, and internal voltage reference. Built using CBCMOS, this monolithic circuit offers the user a complete system with very high package density and reliability.

The converter is a successive approximation ADC with T/H, and is capable of operating with conversion times as short as 2µs. Analog input bandwidth is 200 kHz, and DAC output voltage settling time is less than 4µs, making the AD8401 capable of controlling servo loops with speed and precision.

The 8-bit data interface provides both read and write operation for parallel bus interfaces to microcontrollers and DSP processors. An external 5 MHz clock sets the 2µs conversion rate. Slower clocks reduce the conversion time and the internal power dissipation. The standard control lines: Reset, Busy, Interrupt, Read and Write complete the handshaking signals for microprocessor communication. A start trigger ST input allows precise sampling intervals in synchronous sampling applications.

The input multiplexer addressing is designed for direct interface to the AD899 hard-disk drive, read-channel device with no extra hardware or special software. Analog input range levels are likewise compatible with the AD899.

The AD8401 is designed to operate from a single +5 volt supply, which will give an ADC input range of 0V to 3.0V, and DAC output range of 0V to 2.5V.

The AD8401 is offered in the SOIC-28 surface mount package, and is guaranteed to operate over the extended industrial temperature range of -40 °C to +85 °C.

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ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许,也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

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