ICL7136C/D Equivalent & Substitute Parts

Part Overview

The ICL7136C/D is a low-power, 3½ digit analog-to-digital converter manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications. This component is classified as obsolete, indicating it is no longer in active production. The identification of equivalent and substitute parts is necessary to support legacy system maintenance, design updates, and procurement continuity for applications currently utilizing this converter.

Substiute Parts

ICL7136C/D

Analog Devices Inc./Maxim IntegratedIn Stock: 1179ICL7136C/D Datasheet

Current PartRFQ

ICM7228CIPIZ

Renesas Electronics CorporationIn Stock: 1697ICM7228CIPIZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution analysis for the ICL7136C/D is constrained by the following critical parameters:

Functional Category Mismatch: The ICL7136C/D is classified as a Data Acquisition component (analog-to-digital converter), while the identified substitute part ICM7228CIPIZ is classified as Power Management (PMIC) with LED driver functionality. This represents a fundamental functional divergence.

Packaging Incompatibility: The main part is supplied as a Die (bare semiconductor), while the substitute is packaged as 28-DIP (0.600", 15.24mm) through-hole component. These packaging formats are not mechanically or electrically interchangeable without significant circuit redesign.

Supply Voltage Incompatibility: The ICL7136C/D operates at 9V supply voltage, whereas the ICM7228CIPIZ operates within 4V ~ 6V range. This voltage differential prevents direct substitution without additional power conditioning circuitry.

Operating Temperature Range Divergence: The main part operates from 0°C ~ 70°C, while the substitute operates from -40°C ~ 85°C. Although the substitute has a wider range, this does not establish functional equivalence.

Mounting Type Incompatibility: Surface mount (Die) versus through-hole (28-DIP) mounting types require different PCB design and assembly processes.

Based on the provided parameters, the ICM7228CIPIZ does not meet the substitution criteria for the ICL7136C/D due to fundamental functional, electrical, and mechanical incompatibilities.

Parameter Comparison

Engineering Selection Recommendations

Based on the provided parameter data, the ICM7228CIPIZ is not a suitable substitute for the ICL7136C/D. The parts differ fundamentally in product category, functional purpose, electrical specifications, and physical packaging.

Both components maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, indicating equivalent environmental and regulatory standing. However, these compliance attributes alone do not establish functional or electrical substitutability.

For applications requiring replacement of the obsolete ICL7136C/D, component selection must be based on:

1. Functional requirements (analog-to-digital conversion specifications)
2. Supply voltage compatibility (9V operation)
3. Operating temperature range requirements (0°C ~ 70°C minimum)
4. Packaging and mounting constraints (surface mount Die format)

Selection of alternative components should be performed through direct consultation of manufacturer datasheets and technical specifications aligned with the original application requirements.

Frequently Asked Questions (FAQ)

Q: Can the ICM7228CIPIZ directly replace the ICL7136C/D in existing designs?

A: No. The ICM7228CIPIZ cannot directly replace the ICL7136C/D. The parts operate at different supply voltages (4V-6V versus 9V), use incompatible packaging formats (28-DIP through-hole versus Die surface mount), and serve different functional purposes (LED driver versus analog-to-digital converter).

Q: What is the primary reason these parts are not interchangeable?

A: The ICL7136C/D is a data acquisition component (ADC), while the ICM7228CIPIZ is a power management component (LED driver). These represent fundamentally different product categories with distinct electrical and functional characteristics.

Q: Are there any compatible compliance or regulatory attributes between these parts?

A: Yes. Both components are ROHS3 compliant, carry MSL Level 1 (Unlimited) moisture sensitivity ratings, and maintain REACH unaffected status. These regulatory and environmental attributes are equivalent, but do not establish functional substitutability.

Q: What parameters must be matched for a valid substitute to the ICL7136C/D?

A: Valid substitutes must match the following critical parameters: product category (data acquisition), supply voltage (9V), operating temperature range (0°C ~ 70°C minimum), mounting type (surface mount), and package format (Die). Functional specifications including resolution, conversion speed, and input impedance must also be evaluated against application requirements.

Q: Why is the ICL7136C/D classified as obsolete?

A: Obsolete status indicates the component is no longer manufactured or supported by the original supplier. This classification necessitates identification of alternative components for ongoing system support and new design implementations.