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CS3002-ISZ Equivalent & Substitute Parts Reference
Part Overview
The CS3002-ISZ is a general-purpose operational amplifier manufactured by Cirrus Logic Inc., configured as a dual-channel (2 circuit) rail-to-rail amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of active equivalent and substitute components for new designs and production continuity.
The CS3002-ISZ operates across a supply voltage range of 2.7 V to 6.7 V with a slew rate of 5 V/µs, making it suitable for low-to-medium speed signal conditioning applications. The obsolete status requires engineers to evaluate functionally compatible alternatives that maintain electrical and mechanical compatibility while offering active product support and extended availability.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | CS3002-ISZ | — |
| Manufacturer | Cirrus Logic Inc. | — |
| Product Status | Obsolete | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Slew Rate | 5 | V/µs |
| Voltage - Supply Span (Min) | 2.7 | V |
| Voltage - Supply Span (Max) | 6.7 | V |
| Current - Input Bias | 100 | pA |
| Voltage - Input Offset | 10 | µV |
| Operating Temperature | -40 to 85 | °C |
| RoHS Status | RoHS Compliant | — |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) | — |
Substitute Part Grouping Explanation
Substitution of the CS3002-ISZ is determined by strict adherence to the following electrical and mechanical parameters:
Primary Compatibility Criteria:
- Package / Case: 8-SOIC (0.154", 3.90mm Width) — mandatory for PCB layout compatibility
- Number of Circuits: 2 — functional requirement for dual-channel operation
- Output Type: Rail-to-Rail — essential for signal swing requirements
- Mounting Type: Surface Mount — assembly process compatibility
- Voltage - Supply Span: Minimum 2.7 V and maximum ≥ 6.7 V — power supply compatibility
Secondary Electrical Parameters:
- Slew Rate: ≥ 5 V/µs — bandwidth and transient response capability
- Current - Input Bias: ≤ 100 pA — input impedance characteristics
- Voltage - Input Offset: ≤ 10 µV — DC accuracy requirements
- Operating Temperature: -40°C to 85°C minimum — thermal operating range
Substitute parts are grouped into two categories based on their ability to meet these criteria:
Category A (Direct Substitutes): Parts meeting all primary and secondary criteria with active product status and modern compliance certifications (RoHS3, REACH Unaffected).
Category B (Conditional Substitutes): Parts meeting primary criteria but with variations in secondary parameters, requiring application-level verification of performance impact.
Parameter Comparison
| Parameter | CS3002-ISZ | AD8532ARZ | MCP6002T-I/SN | MCP6272T-E/SN | OPA2333AID | TLC4502AID | TLC4502AIDR |
|---|---|---|---|---|---|---|---|
| Manufacturer | Cirrus Logic | Analog Devices | Microchip | Microchip | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail |
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Slew Rate (V/µs) | 5 | 5 | 0.6 | 0.9 | 0.16 | 2.5 | 2.5 |
| Gain Bandwidth Product (MHz) | — | 3 | 1 | 2 | 0.35 | 4.7 | 4.7 |
| Current - Input Bias (pA) | 100 | 5 | 1 | 1 | 70 | 1 | 1 |
| Voltage - Input Offset (µV) | 10 | 25 | 4.5 | 3 | 2 | 10 | 10 |
| Voltage - Supply Span Min (V) | 2.7 | 2.7 | 1.8 | 2 | 1.8 | 4 | 4 |
| Voltage - Supply Span Max (V) | 6.7 | 6 | 6 | 6 | 5.5 | 6 | 6 |
| Operating Temperature (°C) | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| Current - Supply per Channel (µA) | — | 375 | 50 | 85 | 8.5 | 1.25 | 1.25 |
| Current - Output per Channel (mA) | — | 250 | 23 | 25 | 5 | 50 | 50 |
| RoHS Status | RoHS Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant |
| MSL Rating | 2 (1 Year) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
AD8532ARZ (Analog Devices Inc.)
The AD8532ARZ is an active general-purpose dual operational amplifier that maintains electrical compatibility with the CS3002-ISZ across all primary parameters. It operates within the required 2.7 V to 6 V supply range and achieves the 5 V/µs slew rate specification. The device carries RoHS3 compliance and MSL 1 rating, providing superior moisture handling compared to the obsolete CS3002-ISZ. The AD8532ARZ is suitable for direct replacement in applications where the maximum supply voltage requirement does not exceed 6 V.
MCP6002T-I/SN (Microchip Technology)
The MCP6002T-I/SN is an active CMOS dual operational amplifier with extended supply voltage range (1.8 V to 6 V) and superior input bias current characteristics (1 pA). However, the slew rate is reduced to 0.6 V/µs, which is below the CS3002-ISZ specification. This device is suitable for low-speed, low-power applications where bandwidth is not critical. RoHS3 compliance and MSL 1 rating are provided. Selection requires verification that the reduced slew rate does not impact application performance.
MCP6272T-E/SN (Microchip Technology)
The MCP6272T-E/SN is an active CMOS dual operational amplifier with extended operating temperature range (-40°C to 125°C) and improved input offset voltage (3 µV). The slew rate of 0.9 V/µs remains below the CS3002-ISZ specification. This device is suitable for temperature-extended applications where the reduced bandwidth is acceptable. RoHS3 compliance and MSL 1 rating are provided.
OPA2333AID (Texas Instruments)
The OPA2333AID is an active zero-drift CMOS dual operational amplifier with exceptional input offset voltage (2 µV) and extended operating temperature range (-40°C to 125°C). However, the slew rate of 0.16 V/µs and maximum supply voltage of 5.5 V represent significant deviations from the CS3002-ISZ specification. This device is suitable only for precision DC and very low-frequency applications. RoHS3 compliance and MSL 1 rating are provided.
TLC4502AID (Texas Instruments)
The TLC4502AID is an active CMOS dual operational amplifier with slew rate of 2.5 V/µs and extended operating temperature range (-40°C to 125°C). The minimum supply voltage requirement of 4 V exceeds the CS3002-ISZ minimum of 2.7 V, restricting use in low-voltage applications. The device provides RoHS3 compliance and MSL 1 rating. Selection requires verification that the application supply voltage remains ≥ 4 V.
TLC4502AIDR (Texas Instruments)
The TLC4502AIDR is functionally identical to the TLC4502AID, differentiated only by tape and reel packaging. It is suitable for high-volume production environments. The same supply voltage and slew rate constraints apply.
TLC4502ACD (Texas Instruments)
The TLC4502ACD is a CMOS dual operational amplifier with slew rate of 2.5 V/µs. The operating temperature range is restricted to 0°C to 70°C, and the minimum supply voltage is 4 V. This device is suitable only for commercial-temperature applications with supply voltages ≥ 4 V. RoHS3 compliance and MSL 1 rating are provided.
TLC4502ACDR (Texas Instruments)
The TLC4502ACDR is functionally identical to the TLC4502ACD, differentiated by tape and reel packaging. The same temperature and supply voltage constraints apply.
TLC4502AMD (Texas Instruments)
The TLC4502AMD is a CMOS dual operational amplifier with extended military-grade operating temperature range (-55°C to 125°C) and slew rate of 2.5 V/µs. The minimum supply voltage is 4 V. This device is classified as Last Time Buy, indicating discontinued production. Selection of this device is not recommended for new designs.
OPA2333AQDRQ1 (Texas Instruments)
The OPA2333AQDRQ1 is an automotive-grade zero-drift CMOS dual operational amplifier with AEC-Q100 qualification. It is functionally identical to the OPA2333AID with the addition of automotive qualification. The same slew rate and supply voltage constraints apply. This device is suitable only for automotive applications requiring zero-drift performance.
Frequently Asked Questions (FAQ)
Q1: Can the CS3002-ISZ be directly replaced with any of these substitute parts without circuit modification?
A: Direct replacement without circuit modification is possible only with the AD8532ARZ, provided the application supply voltage does not exceed 6 V. All other substitutes require application-level verification due to variations in slew rate, supply voltage range, or operating temperature specifications.
Q2: What is the primary reason the CS3002-ISZ requires substitution?
A: The CS3002-ISZ is classified as obsolete, meaning the manufacturer has discontinued production and support. Substitute parts are necessary to ensure long-term design support, component availability, and compliance with current regulatory standards (RoHS3, REACH).
Q3: Which substitute part offers the closest electrical match to the CS3002-ISZ?
A: The AD8532ARZ provides the closest electrical match, maintaining the 5 V/µs slew rate and 2.7 V minimum supply voltage. It is the recommended choice for applications where the CS3002-ISZ performance envelope is critical.
Q4: Are all substitute parts available in the same 8-SOIC package?
A: Yes, all substitute parts listed are available in the 8-SOIC (0.154", 3.90mm Width) surface mount package, ensuring PCB layout compatibility.
Q5: What is the difference between TLC4502AID and TLC4502AIDR?
A: Both parts are functionally identical CMOS dual operational amplifiers. The difference is packaging: TLC4502AID is supplied in tube packaging, while TLC4502AIDR is supplied in tape and reel format. Tape and reel packaging is preferred for automated assembly processes.
Q6: Can the OPA2333AID be used in high-speed applications?
A: No. The OPA2333AID has a slew rate of 0.16 V/µs and gain bandwidth product of 350 kHz, making it unsuitable for high-speed applications. It is designed for precision DC and very low-frequency signal conditioning where input offset voltage accuracy is critical.
Q7: What is the significance of the MSL (Moisture Sensitivity Level) rating?
A: MSL rating indicates the component's sensitivity to moisture absorption during storage and handling. The CS3002-ISZ has MSL 2 (1 Year), requiring storage in dry conditions. All substitute parts have MSL 1 (Unlimited), providing superior moisture tolerance and extended shelf life without special storage requirements.
Q8: Which substitute parts support the full -40°C to 85°C operating temperature range of the CS3002-ISZ?
A: The AD8532ARZ and MCP6002T-I/SN support the -40°C to 85°C range. All other substitutes extend the upper temperature limit to 125°C, providing enhanced thermal capability for demanding applications.
Q9: Are there supply voltage compatibility issues with any substitute parts?
A: Yes. The TLC4502 series (TLC4502AID, TLC4502AIDR, TLC4502ACD, TLC4502ACDR, TLC4502AMD) require a minimum supply voltage of 4 V, compared to the CS3002-ISZ minimum of 2.7 V. Applications using supply voltages below 4 V cannot use these devices. The OPA2333 series has a maximum supply voltage of 5.5 V, compared to the CS3002-ISZ maximum of 6.7 V.
Q10: What compliance certifications should be verified for new designs?
A: All active substitute parts carry RoHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements. The CS3002-ISZ carries only RoHS Compliant status (RoHS 2), which is superseded by RoHS3. Verification of compliance requirements with your specific regulatory jurisdiction is recommended.
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