ADC0820-N - 具有跟踪/保持功能的 A/D 转换器，兼容 8 位高速 μP

ADC0820-N是TI德州仪器公司的一款精密ADC(<=10MSPS)产品，ADC0820-N是具有跟踪/保持功能的 A/D 转换器，兼容 8 位高速 μP，本站介绍了ADC0820-N的封装应用图解、特点和优点、功能等，并给出了与ADC0820-N相关的TI元器件型号供参考。

ADC0820-N - 具有跟踪/保持功能的 A/D 转换器，兼容 8 位高速 μP - 精密ADC(<=10MSPS) - 模数转换器 - 德州仪器

产品描述

By using a half-flash conversion technique, the 8-bit ADC0820-N CMOS A/D offers a 1.5 µs conversion time and dissipates only 75 mW of power. The half-flash technique consists of 32 comparators, a most significant 4-bit ADC and a least significant 4-bit ADC.

The input to the ADC0820-N is tracked and held by the input sampling circuitry eliminating the need for an external sample-and-hold for signals moving at less than 100 mV/µs.

For ease of interface to microprocessors, the ADC0820-N has been designed to appear as a memory location or I/O port without the need for external interfacing logic.

产品特性

Built-In Track-and-Hold Function
No Missing Codes
No External Clocking
Single Supply—5 VDC
Easy Interface to All Microprocessors, or Operates Stand-Alone
Latched TRI-STATE Output
Logic Inputs and Outputs Meet Both MOS and T2L Voltage Level Specifications
Operates Ratiometrically or with any Reference Value Equal to or Less than VCC
0V to 5V Analog Input Voltage Range with Single 5V Supply
No Zero or Full-Scale Adjust Required
Overflow Output Available for Cascading
0.3 in. Standard Width 20-Pin PDIP
20-Pin PLCC
20-Pin SOIC

Key Specifications

Resolution: 8 Bits
Conversion Time
- 2.5 µs Max (RD Mode)
- 1.5 µs Max (WR-RD Mode)
Low Power: 75 mW Max
Total Unadjusted Error: ±½ LSB and ± 1 LSB

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