使用改进的FLASH技术高级LinCMOS TM高速8位模拟数字转换器 Advanced LinCMOS TM HIGH-SPEED 8-BIT ANALOG-TO-DIGITAL CONVERTERS USING MODIFIED FLASH TECHNIQUES
description
The TLC0820AC and the TLC0820AI are Advanced LinCMOS 8-bit analog-to-digital converters each consisting of two 4-bit flash converters, a 4-bit digital-to-analog converter, a summing error amplifier, control logic, and a result latch circuit. The modified flash technique allows low-power integrated circuitry to complete an 8-bit conversion in 1.18 µs over temperature. The on-chip track-and-hold circuit has a 100-ns sample window and allows these devices to convert continuous analog signals having slew rates of up to 100 mV/µs without external sampling components.
• Advanced LinCMOS™ Silicon-Gate Technology
• 8-Bit Resolution
• Differential Reference Inputs
• Parallel Microprocessor Interface
• Conversion and Access Time Over Temperature Range
Read Mode . . . 2.5 µs Max
• No External Clock or Oscillator Components Required
• On-Chip Track and Hold
• Single 5-V Supply
• TLC0820A Is Direct Replacement for National Semiconductor ADC0820C/CC and Analog Devices AD7820K/B/T