ICL7107CPL+ - 3.5-Digit Display ADC | Maxim Integrated
N.º da peça: ICL7107CPL+ ✓ AtivoICL7107CPL+ Visão geral
An analog-to-digital converter, or ADC, converts an analog input voltage into a digital value that can be processed, displayed, or transmitted. The ICL7107CPL+ belongs to the broader ADC > data-converter > semiconductor hierarchy. Its integrated dual-slope conversion system is intended for instrumentation applications where moderate resolution, low component count, and direct display output are more important than high-speed sampling.
The ICL7107CPL+ includes polarity and digit drivers, segment decoders, an internal voltage reference, and a clock circuit. According to the Analog Devices product page, the dual-slope conversion technique automatically rejects interference signals commonly encountered in industrial environments. True differential input and reference connections also support ratiometric measurements such as resistance and bridge-transducer measurements.
The ICL7107CPL+ supports approximately 3 samples per second and includes a zero-integrator phase that improves settling behavior. Its integrated display interface reduces the number of external components needed for a complete measurement panel. The 40-pin PDIP package is suitable for through-hole industrial, laboratory, educational, and legacy control equipment where a large DIP footprint and direct LED display connection are practical.
Typical uses include digital panel meters, laboratory voltmeters, temperature indicators, process monitoring instruments, and low-speed sensor interfaces. Because the converter is display-oriented rather than a high-speed sampling ADC, it is most appropriate for continuously updated numerical measurements rather than waveform acquisition, communication receivers, or precision automation channels.
A successful design must provide suitable input, reference, and supply bypassing while following the manufacturer’s recommended component values and timing arrangement. LED displays impose load-dependent supply current, so the power source and decoupling should be checked at minimum operating voltage and maximum digit current. For a substitute, verify the complete 40-pin assignment, LED versus LCD output type, reference behavior, sampling interval, and timing before approving a drop-in replacement.
This page combines the verified product, distributor, and cross-reference information with a drop-in-focused comparison, practical design guidance, and explicit data gaps. It highlights where published sources confirm package and function and where engineers must consult the detailed datasheet before production substitution.
Alternativas drop-in para ICL7107CPL+ — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ICL7107CPL+ (mesmo formato e footprint) — diferindo em Display Output, Input Impedance.
ICL7107CPL
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ICL7107CJL
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TC7107CPL
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TC7107IPL
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ICL7106CPL+
✅ Drop-InConsulte o preço
Ver ficha técnica →ICL7107CPL+ Classificações máximas e características elétricas
| Product Type | 3.5-digit display-driving analog-to-digital converter |
| Conversion Resolution | 3.5 digits |
| Conversion Rate | 3 samples per second |
| Encapsulamento | 40-pin PDIP |
| Número de pinos | 40 pins |
| Tipo de montagem | Through-hole |
| Display Output | Seven-segment LED display driver |
| Integrated Functions | Seven-segment decoder, display driver, voltage reference, clock, polarity driver, and digit driver |
| Conversion Technique | Dual-slope conversion |
| Input Configuration | True differential input |
| Reference Configuration | True differential reference |
| Input Impedance | Very high; numeric value not provided |
| External Display Drive Circuitry | Not required |
| Zero-Integrator Phase | Included |
Guia de Configuração de Pinos do ICL7107CPL+ 40-pin pdip
Configuração de pinos para ICL7107CPL+ (pacote 40-pin pdip). Este componente analógico possui pinos de entrada, saída e alimentação. Consulte o datasheet do fabricante para configurações de offset null, compensação e pino de enable. Ideal para circuitos de condicionamento de sinal e amplificadores.
Nenhum dado detalhado de pinagem disponível para ICL7107CPL+.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
ICL7107CPL+ é adequado para 6 aplicaçãos: Digital Panel Meters, Laboratory Voltmeters, Temperature Measurement Instruments, Industrial Process Monitoring, Resistance and Bridge Measurement, Educational and Bench Instruments.
Digital Panel Meters
The ICL7107CPL+ fits digital panel meters because it combines a 3.5-digit ADC with seven-segment decoding, digit and polarity drivers, an internal reference, and a clock in one 40-pin PDIP device. Its approximately 3 samples per second update rate is suitable for continuously refreshed numerical readings rather than waveform capture. Integrating the display interface reduces the board area and external component count compared with a separate ADC and display controller. In an industrial instrument, the dual-slope conversion method also provides inherent rejection of interference common in industrial environments. Designers should still account for LED current, supply bypassing, reference stability, and input conditioning, and they should confirm the complete pin assignments in the official Analog Devices data sheet before layout release.
Recomendado
Laboratory Voltmeters
The ICL7107CPL+ is suitable for laboratory voltmeter front ends that require a stable numerical display and relatively slow measurement updates. Its true differential input and reference architecture supports measurement arrangements in which signal and reference behavior must be considered together, while the integrated reference and clock simplify a self-contained instrument. The approximately 3 samples per second rate is appropriate for meters displaying settled voltage values, not for capturing high-frequency waveforms. High input impedance helps minimize loading of the measured source, although the front-end still needs suitable input protection and filtering. Because the verified snippets do not publish the complete electrical limits, the engineer should use the manufacturer data sheet to establish input ranges, settling time, accuracy, and bypass-component requirements.
Recomendado
Temperature Measurement Instruments
The ICL7107CPL+ can form the measurement core of a temperature display when the sensor is conditioned into a voltage compatible with the converter’s input and reference arrangement. The integrated seven-segment decoder and LED driver permit a compact numerical instrument without a separate display controller, while the approximately 3 samples per second update rate is adequate for continuously refreshed temperature readings. Differential input and reference capability can be useful when designing ratiometric or bridge-based temperature detection. The measurement accuracy will depend on the sensor, reference network, input filter, layout, and calibration method rather than on display resolution alone. Thermal drift of the complete signal chain and LED loading should therefore be evaluated carefully, with the manufacturer’s recommended reference and bypass components implemented close to the device.
Recomendado
Industrial Process Monitoring
The ICL7107CPL+ is appropriate for slow industrial process indicators that display a measurement from sensors, potentiometers, or transducers. According to the Analog Devices product page, its dual-slope conversion technique automatically rejects interference signals common in industrial environments, while the approximately 3 samples per second rate supports a readable panel display. Integrated display-drive circuitry reduces subsystem complexity and component count. For reliable operation, the signal and reference paths should be protected from transients, routed away from display-current returns, and supported by the prescribed bypass network. Engineers must verify the actual input range, reference limits, timing, and allowable temperature from the full data sheet because those numerical limits were not present in the supplied verification snippets.
Recomendado
Resistance and Bridge Measurement
The ICL7107CPL+ supports resistance and bridge-transducer measurement because the family provides true differential input and reference connections, which are particularly useful for ratiometric sensing. A bridge output can be measured relative to its excitation-derived reference, while the integrated decoder and display driver present the resulting value directly to a seven-segment LED display. The approximately 3 samples per second conversion rate suits slowly changing physical quantities such as temperature, pressure, or load. Actual measurement resolution and accuracy still depend on excitation stability, input protection, reference routing, and calibration. Designers should follow the manufacturer’s recommended layouts and component values and should not infer bridge excitation capability or permissible common-mode voltage from the abbreviated product summaries.
Recomendado
Educational and Bench Instruments
The ICL7107CPL+ is well matched to educational meters, bench instruments, and legacy laboratory equipment because it provides a complete measurement and display function in one through-hole package. Its 40-pin PDIP format is convenient for prototyping, repair, and manually wired educational panels, while the approximately 3 samples per second update rate produces a clear numerical display for slowly changing inputs. The integrated seven-segment decoder, polarity and digit drivers, voltage reference, and clock reduce the number of discrete functions a student or technician must assemble. For dependable demonstrations, the prototype board should preserve the manufacturer’s component values, provide adequate input protection, and separate display-current paths from sensitive reference routing. Any substitute should be checked against the original 40-pin assignment and LED display-polarity requirements.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ICL7107CPL+ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ICL7107CPL | ICL7107CJL | TC7107CPL | TC7107IPL | ICL7106CPL+ |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Microchip Technology | Microchip Technology | Analog Devices |
| Package | 40-pin PDIP | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same |
| Pin Count | 40 pins | 40 pins | 40 pins | 40 pins | 40 pins | 40 pins |
Principais diferenciais
- Complete integrated display subsystem (vs ICL7106CPL+)
- Direct seven-segment LED implementation (vs TC7107CPL)
- True differential measurement architecture (vs ICL7107CPL)
Notas de projeto
Budget the supply for the converter and all driven LED segments at the minimum operating voltage, maximum display duty cycle, and worst-case digit pattern. LED current can vary significantly between an all-dark display and a display containing several illuminated digits. Place the manufacturer-recommended supply bypass capacitor close to the device and route display-current returns away from sensitive reference and analog-input paths. The verified material identifies a low-power converter but does not provide numerical supply-current limits, so those values must be taken from the official data sheet.
Keep the analog input, reference, and timing-component connections compact and physically separated from the seven-segment display outputs. Dual-slope conversion can reject periodic interference, but it does not remove layout-generated errors such as reference coupling or common-impedance disturbance. Use the manufacturer’s application diagram for component placement and grounding. If the substitute is not the exact ICL7107 die or grade, compare the complete 40-pin table before changing a PCB because an apparently identical PDIP outline does not guarantee identical pin functions.
Do not substitute the ICL7106CPL+ without redesigning the display interface because the verified sources distinguish the ICL7106 as an LCD-driver version and the ICL7107 as an LED display driver. Likewise, do not approve a TC7107 candidate solely from its 40-pin DIP description. Check supply limits, differential input polarity, reference behavior, conversion timing, segment and digit drive polarity, external-component requirements, and display-current capability. Production equivalence should be recorded against the specific manufacturer data sheet and, where appropriate, validated on prototype hardware.
Informações de conformidade
The supplied verified results do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations for ICL7107CPL+. The ICL7107 is an industrial and instrumentation A/D converter rather than an automotive-qualified device, so AEC-Q100 is recorded as not applicable.