MX7821

微处理器兼容、660ns、8位ADC,带有采样/保持


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说明

The MX7821 high-speed, microprocessor-compatible (μP), 8-bit analog-to-digital converter (ADC) is a plug-in upgrade fro the industry-standard 7820. The MX7821 uses a half-flash technique, resulting in a 660ns conversion time vs. 1.36μs for the 7820. A VSS pin, not supplied by the 7820, supports dual power supplies and bipolar analog inputs.

The MX7821 has track-and-hold function capable of digitizing a 100kHz signal, and is tested for both its static and dynamic capability. The converter-μP interface appears as a memory location or input/output port that requires no external interface logic. The data outputs use latched, three-state buffered circuitry for direct connection to a μP data bus or system input port. The MX7821 has an overflow output for cascading devices to attain higher resolution. The ADC's input/reference arrangement enables ratiometric operation. For a detailed description of MX7821 operation, refer to the MX7820 data sheet.
MX7821:功能框图 MX7821:功能框图 放大+

关键特性

  • 660ns Conversion Time
  • 20-Pin Narrow DIP Package
  • No External Clock
  • Pin-Compatible Upgrade for Industry-Standard 7820
  • 100kHz Input Signal Bandwidth
  • Bipolar/Unipolar Inputs
  • Single +5V or Dual ±5V Supplies
  • Ratiometric Reference Inputs
  • Static and Dynamic Tested
  • Internal Track/Hold

应用

  • 音频系统
  • null
  • 高速数据采集器
  • 高速伺服环路
  • 电信
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
Unipolar VIN
(V)
SNR
(dB)
THD
(dB)
Package/PinsBudgetary
Price
ADCmaxnominalmaxSee Notes
MX7821 81500SARµP/8S.E. Only5545-50
PDIP/20
PLCC/20
SOIC (W)/20
$8.98 @1k
查看所有Precision ADCs (< 5Msps) (443)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

质量和环境数据

申请可靠性报告: MX7821 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

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