ICL7106

3 1/2 Digit A/D Converters


Please check latest availability status for a specific part variant.

Description

The Maxim ICL7106/ICL7107 are monolithic analog-to-digital converters (ADCs). They have very high input impedances and require no external display drive circuitry. On-board active components include polarity and digit drivers, segment decoders, voltage reference and a clock circuit. The ICL7106 will directly drive a nonmultiplexed liquid crystal display (LCD), whereas the ICL7107 will directly drive a common anode light emitting diode (LED) display.

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 and reference are particularly useful when making ratiometric measurements (ohms or bridge transducers). Maxim has added a zero-integrator phase to the ICL7106 and ICL7107, 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.

These devices are used in a wide range of digital panel meter applications. Most applications, however, involve the measurement and display of analog data.

ICL7106, ICL7107: Typical Operating Circuit ICL7106, ICL7107: Typical Operating Circuit Enlarge+

Key Features

  • Improved 2nd Source (see Page 3 of the full data sheet for "Maxim Advantage")
  • Guaranteed First Reading Recovery from Overrange
  • On-Board Display Drive Capability—No External Circuitry Required
    • LCD—ICL7106
    • LED—ICL7107
  • High-Impedance CMOS Differential Inputs
  • Low Noise (< 15µVP-P) without Hysteresis or Overrange Hangover
  • Clock and Reference On-Chip
  • True Differential Reference and Input
  • True Polarity Indication for Precision Null Applications
  • Monolithic CMOS Design

Applications/Uses

  • Conductance
  • Current
  • Material Thickness
  • Pressure
  • Resistance
  • Speed
  • Temperature
  • Voltage
Part NumberResolution
(±Counts)
Conv. Rate
(ksps)
Data BusDiff/S.E. InputInternal VREF
(V)
External VREF
(V)
External VREF
(V)
Bipolar VIN
(±V)
Package/PinsBudgetary
Price
maxnominalminmaxmaxSee Notes
ICL7106 20000.0037-SegmentDiff. Only2.8-93.5
PDIP/40
PLCC/44
$6.09 @1k
ICL7107 -55
MQFP/44
PDIP/40
PLCC/44
See All Display-Oriented ADCs (28)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Technical Documents

Tutorial 2102 Delta-Sigma ADCs Replace Integrating ADCs for Panel Meters
Tutorial 2094 A Simple ADC Comparison Matrix
Tutorial 1041 Understanding Integrating ADCs

Quality and Environmental Data

Request Reliability Report for: ICL7106 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • ICL7106CJL
  • ICL7106CPL
  • ICL7106CPL+
  • ICL7106CPL+3
  • ICL7106CPL-3
  • ICL7106CQH+D
  • ICL7106CQH+TD
  • ICL7106CQH-D
  • ICL7106CQH-TD
  • ICL7106EJL
  • ICL7106EPL
  • ICL7106EPL+
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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    Environmental Management System >

     
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    Related Resources


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