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CA5260M Equivalent & Substitute Parts
Part Overview
The CA5260M is a general purpose operational amplifier manufactured by Renesas Electronics Corporation, configured as a dual-circuit (2-channel) rail-to-rail amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, indicating that Renesas has discontinued production and support. The CA5260M operates across a wide supply voltage range of 4.5 V to 16 V and is rated for industrial temperature applications from -55°C to 125°C.
Due to the obsolete status of the CA5260M, identification of equivalent and substitute parts is necessary for ongoing design support, production continuity, and component procurement. Substitute parts must maintain functional compatibility through matching electrical characteristics, package form factor, and operational parameters while preferably offering active product status and improved compliance certifications.
Substiute Parts
Key Parameters
| Parameter | CA5260M Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | Channels |
| Output Type | Rail-to-Rail | — |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Slew Rate | 5 | V/µs |
| Gain Bandwidth Product | 3 | MHz |
| Current - Input Bias | 5 | pA |
| Voltage - Input Offset | 2 | mV |
| Current - Supply | 9 | mA (x2 Channels) |
| Current - Output / Channel | 45 | mA |
| Voltage - Supply Span (Min) | 4.5 | V |
| Voltage - Supply Span (Max) | 16 | V |
| Operating Temperature | -55°C ~ 125°C | — |
| RoHS Status | RoHS non-compliant | — |
| Product Status | Obsolete | — |
Substitute Part Grouping Explanation
Substitution of the CA5260M is determined by strict adherence to the following critical parameters:
Primary Compatibility Criteria:
- Package form factor: 8-SOIC (0.154", 3.90mm Width) surface mount configuration
- Dual-circuit configuration: 2 independent amplifier channels
- Output architecture: Rail-to-rail output capability
- Amplifier classification: General purpose operational amplifier
Secondary Electrical Compatibility Criteria:
- Supply voltage range: Minimum 4.5 V to maximum 16 V (CA5260M specification)
- Operating temperature range: Minimum -55°C to maximum 125°C (CA5260M specification)
- Slew rate: 5 V/µs (CA5260M specification)
- Gain bandwidth product: 3 MHz (CA5260M specification)
- Output current capability: 45 mA per channel (CA5260M specification)
Substitute parts are grouped into two categories based on functional alignment:
Category 1: Direct General Purpose Substitutes — Parts maintaining general purpose amplifier classification with electrical parameters within or exceeding CA5260M specifications. These include AD8666WARZ-R7, MCP6H02-E/SN, MCP6H02T-E/SN, and NCS20072DR2G.
Category 2: Alternative Topology Substitutes — Parts offering different amplifier topologies (chopper/zero-drift or CMOS) that provide enhanced performance in specific parameters while maintaining dual-circuit, rail-to-rail, 8-SOIC configuration. These include AD8639WARZ, AD8639WARZ-R7, AD8639WARZ-RL, ICL7621DCSA+, ICL7621DCSA+T, and ICL7621DESA+.
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Input Bias (pA) | Input Offset (mV) | Supply Current (mA) | Output Current (mA) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CA5260M | Renesas | General Purpose | 5 | 3 | 5 | 2 | 9 | 45 | 4.5 | 16 | -55 ~ 125 | Obsolete | Non-compliant |
| AD8639WARZ | Analog Devices | Chopper (Zero-Drift) | 2 | 1.5 | 1 | 0.003 | 1.25 | 37 | 5 | 16 | -40 ~ 125 | Active | ROHS3 Compliant |
| AD8639WARZ-R7 | Analog Devices | Chopper (Zero-Drift) | 2 | 1.5 | 1 | 0.003 | 1.25 | 37 | 5 | 16 | -40 ~ 125 | Active | ROHS3 Compliant |
| AD8639WARZ-RL | Analog Devices | Chopper (Zero-Drift) | 2 | 1.5 | 1 | 0.003 | 1.25 | 37 | 5 | 16 | -40 ~ 125 | Active | ROHS3 Compliant |
| AD8666WARZ-R7 | Analog Devices | General Purpose | 3.5 | 4 | 0.2 | 0.6 | 1.15 | 140 | 5 | 16 | -40 ~ 125 | Active | ROHS3 Compliant |
| ICL7621DCSA+ | Analog Devices / Maxim | CMOS | 1.6 | 1.4 | 1 | 15 | 1 | Not specified | 2 | 16 | 0 ~ 70 | Active | ROHS3 Compliant |
| ICL7621DCSA+T | Analog Devices / Maxim | CMOS | 1.6 | 1.4 | 1 | 15 | 1 | Not specified | 2 | 16 | 0 ~ 70 | Active | ROHS3 Compliant |
| ICL7621DESA+ | Analog Devices / Maxim | CMOS | 1.6 | 1.4 | 1 | 15 | 1 | Not specified | 2 | 16 | -40 ~ 85 | Active | ROHS3 Compliant |
| MCP6H02-E/SN | Microchip Technology | General Purpose | 0.8 | 1.2 | 10 | 0.7 | 0.135 | 50 | 3.5 | 16 | -40 ~ 125 | Active | ROHS3 Compliant |
| MCP6H02T-E/SN | Microchip Technology | General Purpose | 0.8 | 1.2 | 10 | 0.7 | 0.135 | 50 | 3.5 | 16 | -40 ~ 125 | Active | ROHS3 Compliant |
| NCS20072DR2G | onsemi | General Purpose | 2.4 | 3.2 | 5 | 1.3 | 0.42 | 65 | 2.7 | 36 | -40 ~ 125 | Active | ROHS3 Compliant |
Engineering Selection Recommendations
For Direct Functional Replacement with Enhanced Performance:
The AD8666WARZ-R7 (Analog Devices) provides the closest functional alignment to the CA5260M as a general purpose dual-channel rail-to-rail amplifier in 8-SOIC package. This part offers active product status, ROHS3 compliance, and superior electrical performance including higher gain bandwidth product (4 MHz versus 3 MHz), lower input offset voltage (0.6 mV versus 2 mV), and significantly higher output current capability (140 mA versus 45 mA per channel). The operating temperature range (-40°C to 125°C) covers the upper portion of the CA5260M specification (-55°C to 125°C), with the minimum temperature difference of 15°C acceptable for most industrial applications.
For Low-Power Applications:
The NCS20072DR2G (onsemi) offers active status and ROHS3 compliance with comparable slew rate (2.4 V/µs) and gain bandwidth product (3.2 MHz) to the CA5260M. This part provides extended supply voltage range (2.7 V to 36 V) and full industrial temperature coverage (-40°C to 125°C). Supply current consumption is significantly reduced (0.42 mA versus 9 mA), making this selection suitable for power-constrained applications.
For Ultra-Low Input Offset Voltage Applications:
The AD8639WARZ, AD8639WARZ-R7, and AD8639WARZ-RL (Analog Devices) employ chopper (zero-drift) topology, delivering input offset voltage of 3 µV compared to the CA5260M's 2 mV specification. These parts maintain active status and ROHS3 compliance. Trade-offs include reduced slew rate (2 V/µs versus 5 V/µs) and lower gain bandwidth product (1.5 MHz versus 3 MHz). Minimum operating temperature is -40°C, representing a 15°C constraint relative to CA5260M specification.
For Extended Temperature Range with Low Supply Current:
The ICL7621DESA+ (Analog Devices/Maxim) provides CMOS topology with operating temperature range of -40°C to 85°C and ultra-low supply current (1 mA). This part maintains active status and ROHS3 compliance. The extended lower temperature limit (-40°C) and reduced upper temperature limit (85°C) relative to CA5260M (-55°C to 125°C) require application-specific thermal evaluation.
For Cost-Optimized General Purpose Applications:
The MCP6H02-E/SN and MCP6H02T-E/SN (Microchip Technology) offer active status, ROHS3 compliance, and ultra-low supply current (0.135 mA). These parts support full industrial temperature range (-40°C to 125°C) and extended lower supply voltage (3.5 V minimum). Trade-offs include reduced slew rate (0.8 V/µs) and lower gain bandwidth product (1.2 MHz).
All recommended substitutes maintain dual-circuit configuration, rail-to-rail output architecture, and 8-SOIC surface mount package compatibility with the CA5260M. Selection should be based on specific application requirements for slew rate, bandwidth, supply current, temperature range, and output current capability.
Frequently Asked Questions (FAQ)
Q: Can the AD8666WARZ-R7 directly replace the CA5260M without circuit modification?
A: The AD8666WARZ-R7 maintains identical package form factor (8-SOIC), dual-circuit configuration, rail-to-rail output, and supply voltage range (5 V to 16 V maximum). Pin-to-pin compatibility is preserved. However, the minimum operating temperature differs: AD8666WARZ-R7 operates from -40°C while CA5260M operates from -55°C. Applications requiring operation below -40°C require alternative selection or thermal management verification. Electrical parameter differences (higher slew rate, lower input offset, higher output current) generally improve circuit performance without requiring modification.
Q: What is the primary difference between the AD8639WARZ and AD8666WARZ-R7 substitutes?
A: The AD8639WARZ employs chopper (zero-drift) amplifier topology, delivering extremely low input offset voltage (3 µV) at the cost of reduced slew rate (2 V/µs) and lower gain bandwidth product (1.5 MHz). The AD8666WARZ-R7 uses conventional general purpose topology, matching the CA5260M's amplifier classification, with higher slew rate (3.5 V/µs), higher gain bandwidth product (4 MHz), and higher output current (140 mA). Selection depends on whether the application prioritizes offset voltage stability (AD8639WARZ) or bandwidth and slew rate performance (AD8666WARZ-R7).
Q: Are the ICL7621 series parts suitable for high-speed applications?
A: The ICL7621 series (ICL7621DCSA+, ICL7621DCSA+T, ICL7621DESA+) employ CMOS topology with slew rate of 1.6 V/µs and gain bandwidth product of 1.4 MHz, both lower than the CA5260M specification (5 V/µs and 3 MHz respectively). These parts are optimized for ultra-low power consumption (1 mA supply current) and extended supply voltage range (2 V to 16 V). Applications requiring slew rates exceeding 1.6 V/µs or bandwidth exceeding 1.4 MHz should select alternative substitutes such as AD8666WARZ-R7 or NCS20072DR2G.
Q: What packaging options are available for substitute parts?
A: All substitute parts maintain the 8-SOIC (0.154", 3.90mm Width) surface mount package form factor. Packaging variants differ by tape format: AD8639WARZ and AD8639WARZ-RL are supplied in Tape & Reel (TR) format; AD8639WARZ-R7 is supplied in Tape & Reel (TR) format; AD8666WARZ-R7 is supplied in Tape & Reel (TR) format; ICL7621DCSA+ is supplied in Tube format; ICL7621DCSA+T is supplied in Tape & Reel (TR) format; ICL7621DESA+ is supplied in Tube format; MCP6H02-E/SN is supplied in Tube format; MCP6H02T-E/SN is supplied in Cut Tape (CT) & Digi-Reel® format; NCS20072DR2G is supplied in Cut Tape (CT) & Digi-Reel® format. Packaging selection does not affect electrical compatibility but influences procurement and assembly processes.
Q: Which substitute offers the lowest supply current consumption?
A: The MCP6H02-E/SN and MCP6H02T-E/SN (Microchip Technology) offer the lowest supply current at 0.135 mA per dual-channel configuration, compared to the CA5260M's 9 mA. The ICL7621 series provides 1 mA supply current. The NCS20072DR2G provides 0.42 mA. These ultra-low power options are suitable for battery-powered and energy-constrained applications. Trade-offs include reduced slew rate and gain bandwidth product relative to the CA5260M.
Q: Is RoHS compliance a critical factor in substitute selection?
A: The CA5260M is RoHS non-compliant. All substitute parts listed are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and assembly. For applications subject to RoHS directives or customer specifications requiring RoHS compliance, all listed substitutes satisfy this requirement. For legacy applications without RoHS requirements, RoHS compliance status does not affect functional compatibility.
Q: Can the NCS20072DR2G operate at the CA5260M's minimum supply voltage of 4.5 V?
A: The NCS20072DR2G operates across a supply voltage range of 2.7 V to 36 V, which encompasses the CA5260M's 4.5 V minimum specification. The NCS20072DR2G actually provides extended lower supply voltage capability (2.7 V), allowing operation in applications with reduced supply voltage. The extended upper supply voltage limit (36 V versus 16 V for CA5260M) provides additional design flexibility for higher-voltage applications.
Q: What is the temperature range limitation for the ICL7621DCSA+ variant?
A: The ICL7621DCSA+ operates across 0°C to 70°C, which is narrower than the CA5260M specification of -55°C to 125°C. This variant is suitable for commercial and industrial applications within the 0°C to 70°C range. For extended temperature applications, the ICL7621DESA+ variant provides -40°C to 85°C range, and the MCP6H02 series provides -40°C to 125°C range, offering better alignment with CA5260M temperature specifications.
Q: Are all substitute parts available in current inventory?
A: Inventory availability varies by part number and supplier. AD8639WARZ-R7 has 3,100 units in stock; AD8666WARZ-R7 has 3,125 units; ICL7621DCSA+T has 27,559 units; MCP6H02T-E/SN has 12,900 units; NCS20072DR2G has 60,300 units. Inventory status should be verified with component suppliers prior to design commitment, as availability fluctuates based on market demand and production schedules.
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