Analog Devices AD8401
The AD8401 is a complete data acquisition and control system containing ADC, DAC, 4-channel MUX, and internal voltage reference. The converter is a successive approximation ADC with T/H, and is capable of operating with conversion times as short as 2 µs. The 8-bit data interface provides both read and write operation for parallel bus interfaces to microcontrollers and DSP processors.| Part No. | AD8401 |
|---|---|
| Datasheet | AD8401 Download |
| Manufacturer |  Analog Devices |
| Description | 8-Bit/ 4-Channel Data Acquisition System |
| Buy | Stock & Price |
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 A0 A1 VI N A VIN B VI N C VI N D RS INT BUSY ST DGND M U X T/H 8-Bit, 4-Channel Data Acquisition System AD8401 FUNCTIONAL BLOCK DIAGRAM VDD (+5.0V) 8-BIT ADC 1.25 REF 8-BIT DAC VOUT DAC REG CONTROL LOGIC ADC REG AD8401 RD CLK CS WR DATA I/O (8 BITS) AG DAC AG ADCGENERAL DESCRIPTION
Built using CBCMOS, this monolithic circuit offers the user a complete system with very high package density and reliability. Analog input bandwidth is 200 kHz, and DAC output voltage settling time is less than 4 µs, making the AD8401 capable of controlling servo loops with speed and precision. 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 microprocessor communication.
