描述The TLV571 is an 8-bit data acquisition system that combines a high-speed 8-bit ADC and a parallel interface. The device contains two on-chip control registers allowing control of software conversion start and power down via the bidirectional parallel port. The control registers can be set to a default mode using a dummy RD\ while WR\ is tied low allowing the registers to be hardware configurable. The TLV571 operates from a single 2.7-V to 5.5-V power supply. It accepts an analog input range from 0 V to AVDD and digitizes the input at a maximum 1.25 MSPS throughput rate at 5 V. The power dissipations are only 12 mW with a 3-V supply or 35 mW with a 5-V supply. The device features an auto power-down mode that automatically powers down to 1 mA 50 ns after conversion is performed. In software power-down mode, the ADC is further powered down to only10 uA. Very high throughput rate, simple parallel interface, and low power consumption make the TLV571 an ideal choice for high-speed digital signal processing.特性Fast Throughput Rate: 1.25 MSPS at 5 V, 625 KSPS at 3 V Wide Analog Input: 0 V to AVDD Differential Nonlinearity Error: < ± 0.5 LSB Integral Nonlinearity Error: < ± 0.5 LSB Single 2.7-V to 5.5-V Supply Operation Low Power: 12 mW at 3 V and 35 mW at 5 V Auto Power Down of 1 mA Max Software Power Down: 10 uA Max Internal OSC Hardware Configurable DSP and Microcontroller Compatible Parallel Interface Binary/Twos Complement Output Hardware Controlled Extended Sampling Hardware or Software Start of Conversion Applications Mass Storage and HDD Automotive Digital Servos Process Control General-Purpose DSP Image Sensor Processing