CPC7220K Equivalent & Substitute Parts

Part Overview

The CPC7220K is an active, ROHS3-compliant analog switch IC manufactured by IXYS Integrated Circuits Division. This 8-channel ultrasound switch operates in a 1:1 multiplexer/demultiplexer configuration with SPST switching topology. The device is designed for ultrasound applications requiring buffered switching with low on-state resistance. Finding equivalent parts is necessary when primary inventory is unavailable or when design requirements demand alternative electrical specifications within the same functional category.

Substiute Parts

CPC7220K

IXYS Integrated Circuits DivisionIn Stock: 923CPC7220K Datasheet

Current PartRFQ

HV20220FG-G

Microchip TechnologyIn Stock: 4723HV20220FG-G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CPC7220K is determined by the following critical parameters:

• Functional Configuration: 8-channel SPST switch with 1:1 multiplexer/demultiplexer topology
• Package Compatibility: 48-LQFP surface mount package
• On-State Resistance: Maximum 38 Ohm
• Operating Temperature Range: 0°C ~ 70°C (TA)
• Compliance Requirements: ROHS3 compliance and EAR99 ECCN classification

The HV20220FG-G from Microchip Technology meets all functional and package requirements. While this substitute operates at significantly higher voltage levels (40V ~ 200V single supply, ±40V ~ 160V dual supply) compared to the CPC7220K (4.5V ~ 6V), it maintains identical channel count, switch topology, on-state resistance specification, and package form factor. The substitute is suitable for applications where higher voltage operation is required within the same ultrasound switching application domain.

Parameter Comparison

Engineering Selection Recommendations

Both the CPC7220K and HV20220FG-G are active products with ROHS3 compliance and EAR99 ECCN classification, meeting regulatory requirements for equivalent component selection. The primary distinction lies in supply voltage specifications: the CPC7220K operates at low voltage (4.5V ~ 6V), while the HV20220FG-G is rated for high voltage operation (40V ~ 200V single supply or ±40V ~ 160V dual supply).

Selection between these parts depends on circuit voltage requirements. The CPC7220K is appropriate for low-voltage ultrasound switching applications. The HV20220FG-G is suitable for high-voltage ultrasound applications where the elevated voltage rating is required. Both devices maintain identical channel count, switch topology, on-state resistance, and package footprint, ensuring functional and mechanical compatibility within their respective voltage domains.

The HV20220FG-G specifies a -3dB bandwidth of 50 MHz, providing additional frequency response information not documented for the CPC7220K. The HV20220FG-G carries a higher moisture sensitivity level (MSL 3, 168 hours) compared to the CPC7220K (MSL 1, unlimited), which may affect storage and handling requirements in moisture-sensitive environments.

Frequently Asked Questions (FAQ)

Q: Can the HV20220FG-G be used as a direct replacement for the CPC7220K in a 5V circuit?

A: No. The HV20220FG-G is rated for minimum 40V supply voltage. Using it in a 4.5V ~ 6V circuit violates the device's electrical specifications and will result in improper operation.

Q: Are the CPC7220K and HV20220FG-G pin-compatible?

A: Both devices use the 48-LQFP package with identical pin count and footprint. Pin compatibility is confirmed for mechanical and electrical PCB layout purposes.

Q: What is the significance of the different MSL ratings?

A: The CPC7220K (MSL 1) has unlimited moisture exposure tolerance, while the HV20220FG-G (MSL 3) requires storage in controlled humidity conditions for up to 168 hours before soldering. MSL 3 components require more stringent moisture control during manufacturing and assembly.

Q: Can both parts be used interchangeably in ultrasound applications?

A: Interchangeability is limited to applications where voltage requirements align. In low-voltage ultrasound circuits (4.5V ~ 6V), only the CPC7220K is appropriate. In high-voltage ultrasound circuits (40V ~ 200V), only the HV20220FG-G is appropriate. Voltage domain determines substitution validity.

Q: What does the 1:1 multiplexer/demultiplexer configuration mean?

A: The 1:1 configuration indicates a single-pole switching topology where each of the 8 channels operates as an independent SPST (Single-Pole Single-Throw) switch, enabling one-to-one signal routing without multiplexing multiple inputs to a single output.