ICL7107CDL - 3.5 Digit Display ADC | Harris | 40-SBDIP
料号： ICL7107CDL ✗ 停产ICL7107CDL 概述
An ADC such as the ICL7107CDL is a mixed-signal integrated circuit that converts an analog voltage into a numeric value. In the broader hierarchy, it belongs to data-converter ICs, analog-to-digital converters, and display-oriented measurement ICs. The ICL7107 family is commonly used where a panel meter, digital voltmeter, counter, or process-monitoring instrument needs to present an electrical measurement directly through a seven-segment display.
The key application feature of the ICL7107CDL is its integrated 3.5-digit conversion and display-driver function. A 3.5-digit meter can display a full range of digits plus one sign or half-digit indication, making it suitable for positive or negative measurements. The 40-SBDIP through-hole package supports conventional PCB mounting, socket assembly, and repair or replacement of older instrument designs. The verified product listing identifies the device as a 40-SBDIP Harris Corporation part.
The ICL7107CDL is associated with LED display drivers, which makes it appropriate for digital voltmeters, bench instruments, industrial panel meters, laboratory equipment, and embedded measurement panels. Its external connection requirements, reference voltage, input range, timing behavior, and display-drive characteristics must be confirmed against the manufacturer datasheet before a new PCB is laid out. The device should not be selected solely from its display-driver description because sensor excitation, reference accuracy, input filtering, and calibration determine the final measurement performance.
For an instrument design, place the converter close enough to the analog input and reference network to minimize pickup on high-impedance nodes. Use a stable reference arrangement, appropriate input filtering, and decoupling near the supply pins. A conventional through-hole layout should preserve the manufacturer's pin numbering and provide adequate board spacing for the 40-pin SBDIP body. Verify the exact display-driver outputs and segment/common-anode or common-cathode requirements against the target display.
This product page combines the Harris and Intersil documentation references, verified distributor identification, package information, application positioning, and engineering guidance. It distinguishes the ICL7107CDL from broader cross-reference candidates by focusing on the 40-pin SBDIP footprint and the practical requirements of 3.5-digit panel-meter designs rather than presenting a generic ADC overview.
直接替换替代料： ICL7107CDL ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ICL7107CDL （相同外形与封装尺寸） ——差异在于 Display Output, Package.
ICL7107CPL+
✅ 直接替换联系询价
查看数据手册 →ICL7107CJL
✅ 直接替换📋 参考替代料（不在目录中）
TC7107IPL
✅ 直接替换📋 参考替代料（不在目录中）
TC7107CPL
✅ 直接替换📋 参考替代料（不在目录中）
ICL7107CPL+
✅ 直接替换联系询价
查看数据手册 →ICL7107CDL 最大额定值与电气特性
| Manufacturer | Harris Corporation |
| 功能 | 3.5-digit A/D converter and LED display driver |
| 电源电压 | 6 V |
| 封装 | 40-SBDIP |
| 引脚数量 | 40 pins |
| 安装方式 | Through-hole |
| Conversion Resolution | 3.5 digits |
| Display Output | LED display driver |
ICL7107CDL 40-sbdip 引脚配置指南
ICL7107CDL（40-sbdip 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： ICL7107CDL.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ICL7107CDL 适用于 6 应用s: Digital Panel Voltmeter, Industrial Process Monitor, Laboratory Counter, Digital Multimeter, Sensor Readout Module, Bench Measurement Instrument.
Digital Panel Voltmeter
The ICL7107CDL fits a digital panel voltmeter because its 3.5-digit conversion format and LED display-driver role match the common architecture used in compact bench instruments. The converter can receive a conditioned analog voltage, resolve it into a signed decimal value, and drive the display without requiring a separate display-decoding device. In a 40-SBDIP implementation, the through-hole package simplifies repair of older meters and permits conventional socket or through-hole assembly. The designer should set the input range with the manufacturer-recommended resistor network, stabilize the reference, and confirm segment and common-electrode polarity against the selected display. Input filtering and surge protection remain external design functions, so the converter should be positioned downstream of the protected analog front end rather than connected directly to an unrestricted source.
推荐
Industrial Process Monitor
An industrial process monitor can use the ICL7107CDL to present a pressure, temperature, or level-derived voltage on a local LED display. The 3.5-digit result provides a practical resolution for many panel instruments, while the integrated display-driver function reduces the number of separate logic components needed to operate the readout. The analog signal should arrive through protected, calibrated sensor-conditioning circuitry, and the converter’s reference network must remain stable enough for the intended measurement accuracy. Because the ICL7107CDL is a through-hole device, it also suits maintenance-oriented industrial equipment where replacing a standard 40-pin component is easier than redesigning the instrument around a mixed-signal microcontroller. Verify the operating-temperature requirements and calibrate the displayed value after installation.
推荐
Laboratory Counter
The ICL7107CDL is appropriate for a simple laboratory counter when the external circuitry converts events or measured quantities into a voltage suitable for the converter input. Its 3.5-digit readout can present count-related measurements directly to the operator, and the LED display-driver outputs are suited to a compact instrument panel. The key design task is ensuring that the conversion timing, input filtering, and reference arrangement produce repeatable readings without flicker or excessive update delay. A stable input path and properly decoupled supply are particularly important when the counter shares a chassis or power source with motors and switching equipment. Use the manufacturer timing and reference recommendations rather than estimating settling behavior from generic ADC conventions. The 40-SBDIP package is advantageous for serviceable laboratory instruments intended to use conventional through-hole assembly.
推荐
Digital Multimeter
The ICL7107CDL can form the display and conversion core of a conventional digital multimeter, provided the selected range network, input protection, and reference design are added around it. A 3.5-digit ADC format is characteristic of practical handheld and bench meters that need one sign position and adequate resolution for general voltage or current measurements. The ICL7107CDL’s LED display-driver function supports direct use with a seven-segment instrument display, while its through-hole package supports repair-oriented meter platforms. Range switching should keep contact resistance, leakage, and thermal effects below the target measurement accuracy. A practical design also needs separate protection from the measurement input and careful grounding to prevent display-driver currents from disturbing the analog reference. Validate the exact display polarity and segment mapping before releasing the PCB layout.
推荐
Sensor Readout Module
The ICL7107CDL can serve as the readout stage of a sensor interface module that converts a buffered analog measurement into a local numerical display. This arrangement is useful for temperature probes, pressure transmitters, and other slowly varying signals where an operator benefits from a dedicated numeric display. The converter should be driven from a high-impedance, low-noise conditioning path with an RC input network selected for the required response time. Its reference determines the calibration scale, so reference layout and grounding deserve the same care as the sensor input. The ICL7107CDL’s integrated display-driver function reduces the component count compared with a converter plus separate display interface. The 40-SBDIP format is especially practical for modular industrial products where repairability and conventional assembly methods are valued.
推荐
Bench Measurement Instrument
The ICL7107CDL is well suited to serviceable bench instruments that need a local numerical readout without a complex display processor. Its 3.5-digit conversion resolution and LED display-driver outputs align with simple digital voltmeters, power monitors, and laboratory indicators. The device is normally placed after an analog front end that performs attenuation, amplification, filtering, and reference generation. This separation keeps the converter’s sensitive input path short and makes calibration easier to understand. In a new instrument, choose capacitors and resistor networks according to the manufacturer’s guidance and keep the 6 V supply rail clean. The 40-SBDIP package also makes the design straightforward for laboratories that prefer socketed through-hole instruments and readily replaceable standard ICs rather than fine-pitch surface-mount assemblies.
推荐
推荐产品汇总
工程参考数据： ICL7107CDL ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ICL7107CPL | ICL7107CJL | TC7107IPL | TC7107CPL | ICL7107 |
|---|---|---|---|---|---|---|
| Package | 40-SBDIP | 40-SBDIP | 40-SBDIP | 40-SBDIP | 40-SBDIP | 40-SBDIP |
| Brand | Intersil Corporation | Intersil Corporation | Intersil Corporation | Microchip Technology | Microchip Technology | Analog Devices |
| Function | 3.5-digit A/D converter and LED display driver | 3.5-digit A/D converter and LED display driver | 3.5-digit A/D converter and LED display driver | 40-pin analog-to-digital converter | 40-pin analog-to-digital converter | 3.5-digit A/D converter |
| Display Output | LED display driver | LED display driver | LED display driver | Display converter output | Display converter output | LED display driver |
关键差异点
- Exact legacy Harris/Intersil ordering identity （对比 ICL7107CPL)
- Integrated 3.5-digit conversion and LED display drive （对比 TC7107IPL)
- Serviceable through-hole implementation （对比 ICL7107)
设计说明
Treat the 40-SBDIP footprint as a through-hole assembly and preserve the manufacturer’s pin-1 orientation. Verify body width, lead pitch, row spacing, and pin numbering against the physical component rather than assuming every DIP-40 outline is interchangeable. Place the input, reference, and display connections according to the datasheet layout guidance, and keep sensitive analog traces away from display-driver return currents to reduce conversion errors.
Do not substitute an ICL7107 or TC7107 variant solely because all parts are identified as 40-pin converters. Check suffix-specific temperature grade, supply requirements, reference voltage, input range, conversion timing, and display segment/common polarity. A mechanically similar package can still fail electrically or illuminate the display incorrectly. Validate every changed signal against the exact manufacturer pin table before approving a replacement.
Use a stable, decoupled 6 V supply for the converter and follow the manufacturer’s input, reference, and output capacitance recommendations. The display-driver outputs can contribute dynamic current to the supply rail, so filtering only the analog input is not enough. If the instrument contains relays, lamps, or switching power stages, separate their noisy current paths from the converter and reference network to prevent display glitches and measurement drift.
Keep the analog input path short and place its RC filtering network close to the converter where appropriate. Route the reference return directly to the device ground and avoid sharing narrow ground segments with display current. For panel-meter boards, use a low-impedance ground plane and provide nearby supply bypassing. These layout practices are especially important when the source impedance is high because leakage and induced pickup can dominate the displayed result.
合规信息
No exact-suffix environmental or automotive qualification declarations were identified. A separate source mentions RoHS for the L3 ordering configuration, but that does not establish compliance for the unqualified ICL7107CDL.
