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MCP6294-E/STVAO Equivalent & Substitute Parts
Part Overview
The MCP6294-E/STVAO is a general-purpose operational amplifier manufactured by Microchip Technology, configured as a quad (4-circuit) rail-to-rail output device in a 14-TSSOP surface mount package. This device is classified as Active product status and is designed for applications requiring low-power, general-purpose amplification across a wide supply voltage range of 2.4 V to 6 V. The MCP6294-E/STVAO is ROHS3 compliant with unlimited moisture sensitivity (MSL 1).
Substitute parts are necessary when the original MCP6294-E/STVAO is unavailable due to supply constraints, inventory limitations, or when alternative packaging formats are required for manufacturing processes. Equivalent devices must maintain functional compatibility through matching electrical parameters and identical mechanical packaging specifications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) | — |
| Mounting Type | Surface Mount | — |
| Slew Rate | 7 | V/µs |
| Gain Bandwidth Product | 10 | MHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 3 | mV |
| Current - Supply | 1 | mA (x4 Channels) |
| Current - Output / Channel | 25 | mA |
| Voltage - Supply Span (Min) | 2.4 | V |
| Voltage - Supply Span (Max) | 6 | V |
| Operating Temperature | -40 to 125 | °C |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution eligibility for the MCP6294-E/STVAO is determined by strict adherence to the following mandatory parameters:
Mechanical Compatibility Requirements:
- Package / Case: 14-TSSOP (0.173", 4.40mm Width)
- Mounting Type: Surface Mount
- Number of Circuits: 4
Functional Compatibility Requirements:
- Amplifier Type: General Purpose
- Output Type: Rail-to-Rail
- Operating Temperature Range: Minimum -40°C, Maximum ≥125°C
- Voltage Supply Span: Minimum ≤2.4 V, Maximum ≥6 V
Electrical Performance Parameters (Allowable Variation): Substitute parts may vary in slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current per channel, provided all other mandatory parameters are met. These variations are acceptable as they do not prevent functional substitution in general-purpose amplifier applications.
Compliance Requirements:
- RoHS3 Compliant
- REACH Unaffected
- ECCN: EAR99
All substitute parts listed below satisfy these mandatory criteria and are therefore electrically and mechanically interchangeable with the MCP6294-E/STVAO.
Parameter Comparison
| Part Number | Manufacturer | 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) | Packaging |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MCP6294-E/STVAO | Microchip Technology | 7 | 10 | 1 | 3 | 1 | 25 | 2.4 | 6 | -40 to 125 | 14-TSSOP |
| AD8694ARUZ | Analog Devices Inc. | 5 | 10 | 1 | 0.4 | 0.95 | 80 | 2.7 | 6 | -40 to 125 | 14-TSSOP (Tube) |
| AD8694ARUZ-REEL | Analog Devices Inc. | 5 | 10 | 1 | 0.4 | 0.95 | 80 | 2.7 | 6 | -40 to 125 | 14-TSSOP (CT & Digi-Reel) |
| AD8694WARUZ | Analog Devices Inc. | 5 | 10 | 1 | 0.4 | 0.95 | 80 | 2.7 | 6 | -40 to 125 | 14-TSSOP (Tube) |
| ISL28414FVZ | Renesas Electronics Corporation | 2.5 | 5 | 3 | 0.5 | 0.3 | 31 | 1.8 | 5.5 | -40 to 125 | 14-TSSOP (Tube) |
| LMV654MT/NOPB | Texas Instruments | 3 | 12 | 80 | 100 | 0.122 | 25 | 2.7 | 5.5 | -40 to 125 | 14-TSSOP (Bulk) |
| LMV654MTX/NOPB | Texas Instruments | 3 | 12 | 80 | 0.1 | 0.122 | 25 | 2.7 | 5.5 | -40 to 125 | 14-TSSOP (TR) |
| LMV824DTBR2G | onsemi | 2 | 5.6 | 119 | 1 | 1 | 45 | 2.7 | 5.5 | -40 to 85 | 14-TSSOP (TR) |
| LMV824MTX/NOPB | Texas Instruments | 2 | 5.6 | 40 | 1 | 1 | 45 | 2.5 | 5.5 | -40 to 85 | 14-TSSOP (CT & Digi-Reel) |
| LMV824Q1MTX/NOPB | Texas Instruments | 1.4 | 5.6 | 40 | 1 | 1 | 45 | 2.5 | 5.5 | -40 to 125 | 14-TSSOP (TR) |
| TLV2624IPW | Texas Instruments | 7 | 11 | 2 | 0.25 | 0.8 | 28 | 2.7 | 5.5 | -40 to 125 | 14-TSSOP (Tube) |
Engineering Selection Recommendations
Primary Substitutes (Highest Compatibility):
The AD8694ARUZ, AD8694ARUZ-REEL, and AD8694WARUZ devices from Analog Devices Inc. are direct functional equivalents to the MCP6294-E/STVAO. These parts maintain identical gain bandwidth product (10 MHz), matching number of circuits (4), rail-to-rail output configuration, and operating temperature range (-40°C to 125°C). All three variants are ROHS3 compliant with MSL 1 rating. The primary difference is packaging format: AD8694ARUZ and AD8694WARUZ are supplied in Tube packaging, while AD8694ARUZ-REEL is available in Cut Tape & Digi-Reel format. Selection between these variants depends on manufacturing process requirements.
Secondary Substitutes (Acceptable with Parameter Variation):
The LMV654MTX/NOPB and LMV654MT/NOPB from Texas Instruments are compatible substitutes with higher gain bandwidth product (12 MHz) and lower supply current (0.122 mA). These devices maintain the required 14-TSSOP package, 4-circuit configuration, rail-to-rail output, and full temperature range (-40°C to 125°C). ROHS3 compliance and MSL 1 rating are confirmed. The LMV654MTX/NOPB is supplied in Tape & Reel format, while LMV654MT/NOPB is supplied in Bulk packaging.
The TLV2624IPW from Texas Instruments is a CMOS amplifier variant with matching slew rate (7 V/µs) and higher gain bandwidth product (11 MHz). This device is ROHS3 compliant and maintains the required package and temperature specifications. Product status is listed as Last Time Buy, indicating limited future availability.
Temperature-Constrained Substitutes:
The LMV824DTBR2G (onsemi) and LMV824MTX/NOPB (Texas Instruments) are compatible for applications with maximum operating temperature of 85°C. These devices do not meet the full -40°C to 125°C requirement of the original part. The LMV824Q1MTX/NOPB from Texas Instruments extends the upper temperature limit to 125°C and includes AEC-Q100 automotive qualification, making it suitable for extended temperature applications.
Low-Power Alternative:
The ISL28414FVZ from Renesas Electronics Corporation offers the lowest supply current (0.3 mA) among all substitutes, making it suitable for power-constrained applications. This device maintains the 14-TSSOP package, 4-circuit configuration, and full temperature range. However, it features reduced gain bandwidth product (5 MHz) and slew rate (2.5 V/µs) compared to the original part.
Compliance Status:
All listed substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. All devices maintain the required 14-TSSOP surface mount package specification.
Frequently Asked Questions (FAQ)
Q1: Can I substitute the MCP6294-E/STVAO with any of the listed parts without circuit redesign?
A: Yes, all listed substitute parts maintain mechanical and functional compatibility through identical 14-TSSOP packaging, 4-circuit configuration, rail-to-rail output, and general-purpose amplifier classification. However, variations in electrical parameters (slew rate, gain bandwidth product, input offset voltage, supply current) may affect circuit performance. Circuit validation is required to confirm acceptable performance within your specific application parameters.
Q2: What is the difference between AD8694ARUZ, AD8694ARUZ-REEL, and AD8694WARUZ?
A: These three Analog Devices parts are electrically identical with matching specifications. The primary difference is packaging format: AD8694ARUZ and AD8694WARUZ are supplied in Tube packaging for manual assembly or small-volume production, while AD8694ARUZ-REEL is supplied in Cut Tape & Digi-Reel format for automated pick-and-place assembly. Selection depends on your manufacturing process requirements.
Q3: Why does the LMV824DTBR2G have a maximum operating temperature of 85°C instead of 125°C?
A: The LMV824DTBR2G is specified for a maximum operating temperature of 85°C, which does not meet the full -40°C to 125°C requirement of the MCP6294-E/STVAO. This device is suitable only for applications with maximum operating temperature of 85°C or lower. For extended temperature applications requiring 125°C operation, use the LMV824Q1MTX/NOPB variant instead.
Q4: What does "Last Time Buy" status mean for the TLV2624IPW?
A: Last Time Buy status indicates that the manufacturer (Texas Instruments) has announced the end of production for this device. While current inventory may be available, future availability is not guaranteed. This device should be considered only for applications where long-term supply is not critical, or as a temporary solution pending transition to an alternative part.
Q5: Is the ISL28414FVZ suitable for high-speed applications?
A: The ISL28414FVZ features a slew rate of 2.5 V/µs and gain bandwidth product of 5 MHz, which are lower than the MCP6294-E/STVAO (7 V/µs and 10 MHz respectively). This device is optimized for low-power operation and is suitable for applications where power consumption is the primary concern. For high-speed or high-bandwidth applications, the AD8694 series or TLV2624IPW are more appropriate choices.
Q6: Are all substitute parts RoHS3 compliant?
A: Yes, all listed substitute parts are confirmed ROHS3 compliant. All devices are also REACH unaffected and classified under ECCN EAR99, matching the compliance profile of the original MCP6294-E/STVAO.
Q7: What is the significance of MSL (Moisture Sensitivity Level) rating?
A: MSL 1 (Unlimited) indicates that the device has unlimited shelf life and does not require special moisture control during storage or handling. All listed substitute parts maintain MSL 1 rating except ISL28414FVZ, which is rated MSL 2 (1 Year), requiring controlled storage conditions with maximum 1-year shelf life from date of manufacture.
Q8: Can I use the LMV654 series as a direct replacement for high-frequency applications?
A: The LMV654MTX/NOPB and LMV654MT/NOPB offer higher gain bandwidth product (12 MHz) compared to the MCP6294-E/STVAO (10 MHz), making them suitable for applications requiring higher bandwidth. However, the lower slew rate (3 V/µs versus 7 V/µs) may limit performance in applications requiring rapid signal transitions. Circuit validation is required to confirm suitability for your specific high-frequency requirements.
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