回到顶部

4 1/2位ADC,带有复用的BCD输出

产品详情

主要特征

Parametric specs for Display-Oriented ADCs
Resolution (±Counts) 20000
# Input Channels 1
Data Bus µP/4
UART
Diff/S.E. Input Diff. Only
External VREF (V) (min) -5
External VREF (V) (max) 5
Bipolar VIN (±V) (max) 2
Package/Pins MQFP/44
PDIP/28
PLCC/28
SSOP/28
Budgetary
Price (See Notes)
10.62
缩小

简化框图

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心

参量

Parametric specs for Display-Oriented ADCs
Resolution (±Counts) 20000
# Input Channels 1
Data Bus µP/4
UART
Diff/S.E. Input Diff. Only
External VREF (V) (min) -5
External VREF (V) (max) 5
Bipolar VIN (±V) (max) 2
Package/Pins MQFP/44
PDIP/28
PLCC/28
SSOP/28
Budgetary
Price (See Notes)
10.62

主要特征

  • Improved 2nd Source (See our “Maxim Advantage™” Page 3)
  • ±20,000 Count Resolution
  • Guaranteed ±1 Count accuracy
  • Over-range, under-range signals for auto-range capability
  • Easy interface to UARTs and µPs
  • TTL compatible, Multiplexed BCD outputs
  • True differential input. Zero reading guaranteed for 0 volt Input
  • True polarity at zero for precise null detection
  • Monolithic CMOS Design

应用/用途

  • Current
  • Material Thickness
  • Pressure
  • Resistance
  • Speed
  • Temperature
  • Voltage
  • Weight

描述

The Maxim ICL7135 is a high precision monolithic 41/2 digit A/D converter. Dual slope conversion reliability is combined with ±1 in 20,000 count accuracy and a 2.0000V full scale capability. It features high impedance differential inputs, nearly ideal differential linearity, true ratiometric operation, auto zero and auto-polarity. The multiplexed BCD outputs and digit drivers provide easy interface to external display drivers like the Maxim ICM7211A. The only other external components needed to make precision DVM/DPMs are a reference and a clock. For more complex systems the BCD outputs are enhanced by Active-Low STROBE, OVERRANGE, UNDERRANGE, RUN/Active-Low HOLD and BUSY lines providing easy interface to microprocessors and UARTs. This interfacing capability makes the ICL7135 an ideal device for use in microprocessor based data acquisition and control systems.

The ICL7135 has auto-zero accuracy better than 10µV, zero drift of 0.5µV/°C, input bias current of 10pA max. and rollover error of less than 1 count.

简化框图

ICL7135:典型工作电路 ICL7135:典型工作电路 Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心