CPC7220WTR Equivalent & Substitute Parts

Part Overview

The CPC7220WTR is an 8-channel analog switch IC manufactured by IXYS Integrated Circuits Division, designed for ultrasound applications. This interface component features buffered switching capability with SPST (Single Pole Single Throw) configuration in a 28-PLCC package. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain compatibility with existing circuit designs while meeting the same electrical and mechanical specifications.

Substiute Parts

CPC7220WTR

IXYS Integrated Circuits DivisionIn Stock: 1201CPC7220WTR Datasheet

Current PartRFQ

CPC7220KTR

IXYS Integrated Circuits DivisionIn Stock: 663CPC7220KTR Datasheet

MFR RecommendedRFQ

MAX4800CQI+

Analog Devices Inc./Maxim IntegratedIn Stock: 1296MAX4800CQI+ Datasheet

MFR RecommendedRFQ

MAX4800CQI+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1970MAX4800CQI+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CPC7220WTR is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Number of Channels: 8
• Switch Circuit: SPST
• Multiplexer/Demultiplexer Circuit: 1:1
• On-State Resistance (Max): 38Ohm
• Operating Temperature Range: 0°C ~ 70°C (TA)
• Package / Case: 28-LCC (J-Lead) or 28-PLCC (11.51x11.51)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Identified Substitutes:

1. MAX4800CQI+ (Analog Devices Inc./Maxim Integrated) - Obsolete status; identical 28-PLCC package and electrical specifications; wider supply voltage range (2.7V ~ 13.2V) provides additional design flexibility.

2. MAX4800CQI+T (Analog Devices Inc./Maxim Integrated) - Active product status; identical 28-PLCC package and electrical specifications; wider supply voltage range (2.7V ~ 13.2V); preferred for new designs due to active availability.

3. CPC7220KTR (IXYS Integrated Circuits Division) - Same manufacturer, active product status; identical electrical specifications and channel configuration; different package format (48-LQFP) requires PCB layout modification.

Parameter Comparison

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement (No PCB Modification Required):

Select MAX4800CQI+T as the primary substitute. This part maintains identical 28-PLCC package geometry, matching pin configuration, and equivalent electrical performance. Active product status ensures long-term availability and supply chain stability. The extended supply voltage range (2.7V ~ 13.2V) accommodates the original 4.5V ~ 6V specification while providing additional operational margin.

Alternative for Existing Inventory:

MAX4800CQI+ provides identical electrical and package specifications but carries obsolete product status. Use only when MAX4800CQI+T availability is constrained and existing inventory is confirmed.

For New Designs with PCB Layout Flexibility:

CPC7220KTR offers active product status from the original manufacturer with identical electrical specifications. The 48-LQFP package requires PCB redesign but may provide advantages in space-constrained applications or when leveraging existing LQFP footprint libraries.

Frequently Asked Questions (FAQ)

Q: Can MAX4800CQI+ be used as a direct replacement for CPC7220WTR?

A: Yes. Both parts share identical 28-PLCC package dimensions (11.51x11.51mm), pin count, on-state resistance (38Ohm maximum), and 8-channel SPST configuration. The MAX4800CQI+ operates across a wider supply voltage range (2.7V ~ 13.2V) that encompasses the CPC7220WTR specification (4.5V ~ 6V). No PCB modification is required.

Q: What is the difference between MAX4800CQI+ and MAX4800CQI+T?

A: Both parts are electrically and mechanically identical. The primary distinction is product status: MAX4800CQI+ is obsolete, while MAX4800CQI+T is active. For new applications, MAX4800CQI+T is recommended due to ongoing manufacturer support and supply availability.

Q: Why does CPC7220KTR require PCB modification?

A: CPC7220KTR uses a 48-LQFP package instead of the 28-PLCC package of the CPC7220WTR. The different pin count (48 vs. 28) and package footprint necessitate PCB layout redesign. However, electrical specifications remain equivalent.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. CPC7220WTR, MAX4800CQI+, MAX4800CQI+T, and CPC7220KTR all meet ROHS3 compliance requirements.

Q: What is the operating temperature range for all listed parts?

A: All parts operate across 0°C ~ 70°C (TA), matching the original CPC7220WTR specification.

Q: Can I use CPC7220KTR in an existing CPC7220WTR circuit without modification?

A: No. CPC7220KTR requires PCB redesign due to its 48-LQFP package format versus the 28-PLCC format of CPC7220WTR. Use MAX4800CQI+T for direct replacement without PCB changes.