CPC7232K Equivalent & Substitute Parts

Part Overview

The CPC7232K is an 8-channel analog switch IC manufactured by IXYS Integrated Circuits Division, designed for ultrasound applications. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The CPC7232K operates as a 1:1 multiplexer/demultiplexer with SPST (Single Pole Single Throw) switch configuration, featuring buffered output and 38Ω maximum on-state resistance in a 48-LQFP surface mount package.

Key Parameters

Parameter	CPC7232K
Manufacturer	IXYS Integrated Circuits Division
Product Status	Obsolete
Package / Case	48-LQFP
Number of Channels	8
Switch Circuit	SPST
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	38Ω
Voltage - Supply, Single (V+)	4.5V ~ 6V
Operating Temperature	0°C ~ 70°C (TA)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CPC7232K is based on the following critical parameters that must be maintained for functional compatibility:

Package / Case: 48-LQFP (7x7) — identical footprint and pin count required
Number of Channels: 8 circuits
Switch Circuit: SPST configuration
Multiplexer/Demultiplexer Circuit: 1:1 topology
On-State Resistance (Max): 38Ω
Operating Temperature Range: 0°C ~ 70°C (TA)
Mounting Type: Surface Mount
RoHS Compliance: ROHS3 Compliant

The substitute parts listed below are manufactured by Analog Devices Inc./Maxim Integrated under the MAX4802 base product family. All substitutes maintain identical package geometry, channel configuration, switch topology, and on-state resistance specifications. The MAX4802 series offers active product status with extended supply voltage ranges and improved electrical performance characteristics compared to the obsolete CPC7232K.

Parameter Comparison

Parameter	CPC7232K	MAX4802ACCM+	MAX4802ACCM+T	MAX4802CCM+	MAX4802CCM+T
Manufacturer	IXYS	Analog Devices Inc./Maxim	Analog Devices Inc./Maxim	Analog Devices Inc./Maxim	Analog Devices Inc./Maxim
Product Status	Obsolete	Active	Active	Active	Active
Package / Case	48-LQFP	48-LQFP (7x7)	48-LQFP (7x7)	48-LQFP (7x7)	48-LQFP (7x7)
Packaging Type	Bulk	Bulk	Tape & Reel (TR)	Bulk	Tape & Reel (TR)
Number of Channels	8	8	8	8	8
Switch Circuit	SPST	SPST - NO	SPST - NO	SPST - NO	SPST - NO
Multiplexer/Demultiplexer Circuit	1:1	1:1	1:1	1:1	1:1
On-State Resistance (Max)	38Ω	38Ω	38Ω	38Ω	38Ω
Channel-to-Channel Matching (ΔRon)	—	1.9Ω	1.9Ω	1.9Ω	1.9Ω
Voltage - Supply, Single (V+)	4.5V ~ 6V	2.7V ~ 6V	2.7V ~ 6V	2.7V ~ 13.2V	2.7V ~ 13.2V
Switch Time (Ton, Toff) (Max)	—	5µs, 5µs	5µs, 5µs	5µs, 5µs	5µs, 5µs
Channel Capacitance (CS(off), CD(off))	—	18pF	18pF	18pF	18pF
Current - Leakage (IS(off)) (Max)	—	2µA	2µA	4µA	4µA
Crosstalk	—	-80dB @ 5MHz	-80dB @ 5MHz	-80dB @ 5MHz	-80dB @ 5MHz
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All four MAX4802 variants are direct functional substitutes for the CPC7232K and maintain full compliance with ROHS3 and REACH regulations. Selection among the substitute options depends on supply voltage requirements and packaging format:

MAX4802ACCM+ and MAX4802ACCM+T are suitable for applications requiring supply voltages between 2.7V and 6V. These variants feature lower maximum leakage current (2µA) and are available in both bulk and Tape & Reel packaging formats.

MAX4802CCM+ and MAX4802CCM+T support extended supply voltage range from 2.7V to 13.2V, accommodating higher voltage applications. These variants feature maximum leakage current of 4µA and are available in both bulk and Tape & Reel packaging formats.

The CPC7232K original supply voltage range of 4.5V ~ 6V is compatible with all four MAX4802 substitutes. For applications operating within the 4.5V ~ 6V range, MAX4802ACCM+ or MAX4802ACCM+T are recommended due to lower leakage specifications. For applications requiring extended voltage capability or future design flexibility, MAX4802CCM+ or MAX4802CCM+T are appropriate selections.

Packaging format selection (bulk versus Tape & Reel) depends on production volume and assembly requirements. Tape & Reel variants (+T suffix) are standard for automated pick-and-place assembly operations.

Frequently Asked Questions (FAQ)

Q: Can MAX4802 variants be used as direct replacements for CPC7232K without PCB modifications?

A: Yes. All MAX4802 variants are pin-compatible with identical 48-LQFP (7x7) package geometry and footprint. No PCB layout changes are required for substitution.

Q: What is the difference between MAX4802ACCM+ and MAX4802CCM+ variants?

A: The primary differences are supply voltage range and leakage current specifications. MAX4802ACCM+ operates from 2.7V to 6V with maximum leakage of 2µA. MAX4802CCM+ operates from 2.7V to 13.2V with maximum leakage of 4µA. Both maintain identical on-state resistance (38Ω) and channel configuration (8 channels, 1:1 multiplexer).

Q: What is the significance of the +T suffix in part numbers?

A: The +T suffix indicates Tape & Reel packaging format, suitable for automated assembly processes. Parts without the +T suffix are supplied in bulk packaging. Electrical specifications and performance are identical between bulk and Tape & Reel variants.

Q: Are all substitute parts currently in active production status?

A: Yes. All four MAX4802 variants (MAX4802ACCM+, MAX4802ACCM+T, MAX4802CCM+, MAX4802CCM+T) are classified as active products with current manufacturing support, ensuring long-term availability compared to the obsolete CPC7232K.

Q: Do the MAX4802 substitutes maintain the same operating temperature range as CPC7232K?

A: Yes. All MAX4802 variants operate across the identical temperature range of 0°C to 70°C (TA), matching the CPC7232K specification.

Q: What compliance certifications apply to the substitute parts?

A: All MAX4802 variants are ROHS3 compliant and REACH unaffected, matching the regulatory compliance status of the original CPC7232K. Moisture sensitivity level is MSL 1 (Unlimited) for all parts.

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