ICL7117 - 3 1/2位ADC，可直接驱动LCD显示/保持

ICL7117是Maxim美信半导体公司的一款数据转换器和采样-保持电路产品，ICL7117是3 1/2位ADC，可直接驱动LCD显示/保持，本站介绍了ICL7117的封装应用图解、特点和优点、功能等，并给出了与ICL7117相关的Maxim元器件型号供参考。

ICL7117 - 3 1/2位ADC，可直接驱动LCD显示/保持 - 数据转换器和采样-保持电路 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The Maxim ICL7116 and ICL7117 are 3½ digit monolithic analog-to-digital converters. They differ from the Maxim ICL7106 and ICL7107 in that the ICL7116 and ICL7117 have a Hold pin, which makes it possible to hold or “freeze” a reading. These integrating ADCs have very high input impedances and directly drive LCD (ICL7116) and LED (ICL7117) displays.

Versatility and accuracy are inherent features of these converters. The dual-slope conversion technique automatically rejects interference signals common in industrial environments. The true differential input is particularly useful when making ratiometric measurements (ohms or bridge transducers). Maxim has added a zero-integrator phase to the ICL7116 and ICL7117, eliminating overrange hangover and hysteresis effects. Finally, these devices offer high accuracy by lowering rollover error to less than one count and zero reading drift to less than 1µV/°C.

关键特性

以下关键特性由Maxim美信半导体提供：

Improved 2nd Source!

Hold Pin Allows Indefinite Display Hold

Guaranteed First Reading Recovery from Overrange

On-Board Display Drive Capability—No ExternalCircuitry Required: LCD (ICL7116), LED (ICL7117)

High-Impedance CMOS Differential Inputs

Low Noise (< 15µVP-P) Without Hysteresis or Overrange Hangover

Clock and Reference On-Chip

Zero Input Gives Zero Reading

True Polarity Indication for Precision Null Applications

热门应用

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