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AD8401 데이터시트(PDF) 1 Page - Analog Devices |
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AD8401 데이터시트(HTML) 1 Page - Analog Devices |
1 / 12 page REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a 8-Bit, 4-Channel Data Acquisition System AD8401 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 FUNCTIONAL BLOCK DIAGRAM V OUT DGND AG DAC AG ADC DATA I/O (8 BITS) M U X T/H 8-BIT ADC 1.25 REF 8-BIT DAC RS INT BUSY ST DAC REG ADC REG CONTROL LOGIC A0 A1 V DD (+5.0V) RD WR CLK CS AD8401 V A IN V B IN V C IN V D IN FEATURES 2 s ADC with T/H 4-Channel MUX AD899 Compatible +5 Volt Operation On-Chip Reference 4 s Voltage Output DAC Fast Bus Access Time—75 ns APPLICATIONS Servo Controls Digitally Controlled Calibration Process Control Equipment GENERAL DESCRIPTION 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 2 µs. Analog input bandwidth is 200 kHz, and DAC output volt- age settling time is less than 4 µs, 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 proces- sors. An external 5 MHz clock sets the 2 µs 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 micro- processor communication. A start trigger ST input allows pre- cise 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 like- wise compatible with the AD899. The AD8401 is designed to operate from a single +5 volt sup- ply, which will give an ADC input range of 0 V to 3.0 V, and DAC output range of 0 V to 2.5 V. The AD8401 is offered in the SOIC-28 surface mount package, and is guaranteed to operate over the extended industrial tem- perature range of –40 °C to +85°C. |
유사한 부품 번호 - AD8401_15 |
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유사한 설명 - AD8401_15 |
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