ICL7106CPL+ - 3.5-Digit LCD ADC | Analog Devices
Teilenummer: ICL7106CPL+ ✓ AktivICL7106CPL+ Übersicht
An A/D converter transforms an analog input voltage into a numeric representation. The ICL7106 integrates the functions needed for a basic digital panel meter: input conditioning, conversion, seven-segment decoding, polarity indication, display drivers, an internal reference, and an oscillator. In the electronic-component hierarchy, it is an ADC, a data-conversion IC, and a mixed-signal instrument integrated circuit. It differs from the ICL7107 because the ICL7106 includes multiplexed backplane drive for an LCD rather than direct drive for a larger LED display.
The verified sources describe the ICL7106 as a high-performance, low-power 3.5-digit converter with very high input impedance. On-chip active components include polarity and digit drivers, segment decoders, a voltage reference, and a clock circuit. These integrated functions reduce the number of external components required in a panel-meter design while providing a direct interface to a nonmultiplexed liquid-crystal display.
The C designation and PL package identify a temperature-grade and packaging arrangement within the ICL7106 product family, while the trailing plus denotes the lead-free ordering code used by current distributor records. The device is supplied in a 40-pin PDIP package identified by distributor listings as 40-PDIP or 40-DIP. The manufacturer product page lists the ICL7106 as a production 3.5-digit A/D converter and provides its family documentation.
Typical uses include digital panel meters, laboratory instruments, temperature indicators, process-monitoring displays, weighing scales, and other instruments that measure an analog voltage and present the result on a seven-segment LCD. Because the converter includes the display decoder and driver, it is especially useful where a compact instrument display is required without building a separate display interface.
The principal design consideration is to follow the manufacturer's recommended input, reference, clock, display, and bypass connections. Because the exact pin names, input limits, conversion timing, reference characteristics, and electrical ratings are not included in the supplied excerpts, engineers should verify those values and the complete pinout in the manufacturer datasheet before final PCB or firmware design.
This product page consolidates current distributor availability, verified pricing, source links, package information, replacement context, and practical design considerations. It distinguishes the ICL7106's LCD-focused role from the LED-oriented ICL7107 and makes missing technical data explicit rather than estimating values that are not supported by the retrieved sources.
Drop-in-Alternativen für ICL7106CPL+ – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit ICL7106CPL+ (gleiche Bauform und Footprint) – abweichend in Display Output, Input Impedance.
ICL7106CPL
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ICL7106CPLZ
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ICL7106CPL+3
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ICL7107CPL+
✅ Drop-InPreis auf Anfrage
Datenblatt ansehen →ICL7107CPL
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ICL7106CPL+ Grenzwerte & elektrische Eigenschaften
| ADC Resolution | 3.5 digits |
| Converter Architecture | Monolithic successive-approximation A/D converter |
| Input Impedance | Very high; numerical value not provided |
| Display Output | Direct drive for a nonmultiplexed liquid-crystal display |
| Integrated Display Decoder | Seven-segment decoder |
| Integrated Display Driver | Multiplexed LCD backplane driver |
| Integrated Reference | Yes; voltage reference included |
| Integrated Clock | Yes; clock circuit included |
| Polarity Output | Yes; polarity driver included |
| Digit Drivers | Yes; digit drivers included |
| External Display Drive Circuitry | Not required |
| Gehäuse | 40-pin PDIP |
| Package Type | Through-hole PDIP |
| Production Status | Production |
| Power Class | Low power |
ICL7106CPL+ through-hole pdip Pinbelegungsleitfaden
Pinbelegung für ICL7106CPL+ (through-hole pdip-Gehäuse). Dieses analoge Bauteil verfügt über Eingangs-, Ausgangs- und Versorgungspins. Offset-Null-, Kompensations- und Enable-Pin-Konfigurationen entnehmen Sie dem Herstellerdatenblatt. Ideal für Signalaufbereitung und Verstärkerschaltungen.
Keine detaillierten Pinbelegungsdaten verfügbar für ICL7106CPL+.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
ICL7106CPL+ ist geeignet für 6 Anwendungs: Digital Panel Meter, Laboratory Voltage Measurement, Industrial Process Monitor, Temperature Indicator, Weighing Scale Display, Bench Supply Readout.
Digital Panel Meter
ICL7106CPL+ fits a three-and-one-half-digit digital panel meter because it combines an analog-to-digital converter, seven-segment decoder, LCD driver, reference, and clock in one 40-pin PDIP device. The integrated display path removes the need for a separate seven-segment decoder and driver, reducing the component count in a compact instrument enclosure. Its nonmultiplexed LCD interface is also more directly aligned with a conventional meter display than the LED-oriented ICL7107 family. The measured input range and required accuracy must still be confirmed from the family datasheet before selecting the divider, reference, and display components.
Empfohlen
Laboratory Voltage Measurement
ICL7106CPL+ can serve as the measurement and display engine in a laboratory voltage instrument because the ICL7106 family provides a 3.5-digit conversion result, internal reference, clock, polarity drive, segment decoding, and direct LCD drive. The very high input impedance described by Analog Devices helps prevent the converter from unnecessarily loading a high-impedance source or divider. A practical design still needs an input-protection network, an appropriately scaled divider, and layout review against the manufacturer's reference circuit to maintain usable accuracy and stable readings.
Empfohlen
Industrial Process Monitor
ICL7106CPL+ is appropriate for a compact industrial process monitor that converts a scaled sensor voltage and presents the value on an LCD. The integrated clock, reference, segment decoder, and display driver allow the instrument to avoid a separate display-interface subsystem, which can simplify enclosure space and assembly. The 3.5-digit format provides useful panel-meter resolution for many temperature, pressure, and level measurements. Because the excerpts do not provide the complete noise, accuracy, or common-mode specifications, industrial use should follow the manufacturer ratings and required calibration procedure.
Empfohlen
Temperature Indicator
ICL7106CPL+ can implement the conversion and display portion of a temperature indicator using a suitable external sensor and scaling network. Its integrated seven-segment decoder and LCD driver make it useful where the desired result is a direct numeric temperature reading rather than a value sent to a host controller. The internal reference and clock remove several support blocks from the signal path. Designers should verify the temperature range, accuracy, and compensation strategy of the sensor separately and confirm the converter's allowed input and reference behavior against the ICL7106 datasheet.
Empfohlen
Weighing Scale Display
ICL7106CPL+ is suited to a basic weighing-scale readout because a three-and-one-half-digit result, polarity indication, and integrated seven-segment display drive are central panel-meter functions. The converter's integrated reference and clock reduce the number of discrete blocks needed around the analog load-cell signal path. The instrument designer must still provide excitation, analog filtering, gain calibration, and overload protection appropriate to the load cell. Exact resolution, conversion rate, and input-common-mode limits should be taken from the manufacturer datasheet before setting the system calibration.
Empfohlen
Bench Supply Readout
ICL7106CPL+ can provide a standalone digital voltage readout for a laboratory power supply by converting a scaled output voltage and driving a seven-segment LCD. Integrating the converter and display interface in the same 40-pin PDIP device is useful for a simple instrument built around the ICL7106's documented function. A production design needs stable input scaling, protection against supply transients, and an appropriate display arrangement. The ICL7107 should not be selected when the existing board expects the ICL7106's multiplexed LCD backplane behavior.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ICL7106CPL+ – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | ICL7106CPL | ICL7106CPLZ | ICL7106CPL+3 | ICL7107CPL+ | ICL7107CPL |
|---|---|---|---|---|---|---|
| Package | 40-pin PDIP | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| ADC Resolution | 3.5 digits | 3.5 digits | 3.5 digits | 3.5 digits | 3.5 digits | 3.5 digits |
| Display Type | Liquid-crystal display | Liquid-crystal display | Liquid-crystal display | Liquid-crystal display | LED display | LED display |
| Display Drive | Multiplexed LCD backplane drive | Multiplexed LCD backplane drive | Multiplexed LCD backplane drive | Multiplexed LCD backplane drive | Direct LED display drive | Direct LED display drive |
| Integrated Reference | Yes | Yes | Yes | Yes | Yes | Yes |
| Integrated Clock | Yes | Yes | Yes | Yes | Yes | Yes |
| External Display Drive Circuitry | Not required | Not required | Not required | Not required | Not required | Not required |
Wichtigste Unterscheidungsmerkmale
- Purpose-built multiplexed LCD backplane drive (vs. ICL7107CPL+)
- Complete integrated instrument conversion path (vs. ICL7106CPL)
- Production-family sourcing through current distributors (vs. ICL7106CPL+3)
- Direct nonmultiplexed LCD interface (vs. ICL7107CPL)
Designhinweise
Route the analog input, reference, and ground connections according to the ICL7106 family reference circuit, keeping the measurement path away from display-driver switching lines. Because the verified sources state that the device has very high input impedance, avoid unnecessary long traces and leakage-prone board surfaces around the analog input. The LCD output and digit-driver nets should remain separated from the analog input path to minimize conversion error. Verify the exact pin locations and recommended grounding topology in the manufacturer datasheet before routing the 40-pin PDIP.
Follow the manufacturer-recommended supply voltage and bypass-capacitor arrangement for the ICL7106 before adding external filtering. The supplied excerpts do not provide operating-voltage limits, quiescent current, or capacitor values, so none should be guessed. Place required bypass capacitors close to their associated supply pins, maintain a common ground reference between the converter and display, and validate startup and display readability across the intended input range. The integrated clock and reference make the device simple to use, but they do not eliminate supply-quality requirements.
Do not substitute the ICL7107-family device solely because it also uses a 40-pin PDIP package. The ICL7106 is documented for an LCD with multiplexed backplane drive, whereas the ICL7107 is documented for direct LED display drive. Even when the package and pin count match, display currents, segment behavior, timing, and board expectations can differ. Confirm every relevant pin and application waveform in the manufacturer datasheet and use an ICL7106-family ordering code when the existing circuit requires LCD backplane operation.
Treat the displayed 3.5 digits as a resolution statement, not as a guarantee of overall measurement accuracy. Real panel-meter accuracy also depends on the reference quality, analog input scaling, resistor tolerances, noise filtering, front-panel design, and calibration method. Use the family datasheet to establish the allowable input and reference ranges, then size and qualify the divider network. Do not infer full-scale voltage, conversion time, or accuracy from the distributor category labels alone.
Compliance-Informationen
The supplied excerpts do not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. The trailing plus is an ordering-code notation and was not treated as sufficient evidence of regulatory compliance. AEC-Q100 is not applicable to this general-purpose instrument ADC based on the available product information.