Request Quote
(Ships tomorrow)
MCP664T-E/ST Equivalent & Substitute Parts
Part Overview
The MCP664T-E/ST is a general-purpose operational amplifier manufactured by Microchip Technology, configured as a 4-circuit rail-to-rail amplifier in a 14-TSSOP surface-mount package. This device operates across a supply voltage range of 2.5 V to 5.5 V with an operating temperature range of -40°C to 125°C. The part is currently in active product status with 1094 units in stock. Equivalent and substitute parts are identified based on matching electrical performance parameters, package compatibility, and functional equivalence within the linear amplifier category.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Microchip Technology | — |
| Part Number | MCP664T-E/ST | — |
| Category | Linear, Amplifiers | — |
| 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 | 32 | V/µs |
| Gain Bandwidth Product | 60 | MHz |
| Current - Input Bias | 6 | pA |
| Voltage - Input Offset | 1.8 | mV |
| Current - Supply | 6 | mA (x4 Channels) |
| Current - Output / Channel | 90 | mA |
| Voltage - Supply Span (Min) | 2.5 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 125 | °C |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
| Product Status | Active | — |
Substitute Part Grouping Explanation
Substitute parts for the MCP664T-E/ST are identified based on the following critical parameters that determine functional equivalence:
Primary Matching Criteria:
- Number of Circuits: 4 channels
- Output Type: Rail-to-Rail configuration
- Package / Case: 14-TSSOP form factor (0.173", 4.40mm Width)
- Mounting Type: Surface Mount
- Operating Temperature Range: -40°C to 125°C (or compatible subset)
- Voltage Supply Span: Minimum 2.5 V to 5.5 V (or compatible range)
Secondary Performance Parameters:
- Slew Rate: 32 V/µs or higher
- Gain Bandwidth Product: 60 MHz or higher
- Current - Output / Channel: 90 mA or higher
- Input Bias Current: 6 pA or lower
- Input Offset Voltage: 1.8 mV or lower
Substitute parts are grouped into two categories: direct functional equivalents with matching performance characteristics, and alternative designs offering enhanced performance specifications while maintaining package and pin compatibility.
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 Span Min (V) | Supply Span Max (V) | Temp Range (°C) | Packaging | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MCP664T-E/ST | Microchip Technology | General Purpose | 32 | 60 | 6 | 1.8 | 6 | 90 | 2.5 | 5.5 | -40 to 125 | Tape & Reel (TR) | Active |
| ADA4891-4ARUZ | Analog Devices Inc. | CMOS | 210 | 105 | 2 | 2.5 | 4.4 | 125 | 2.7 | 5.5 | -40 to 125 | Tube | Active |
| ADA4891-4ARUZ-R7 | Analog Devices Inc. | CMOS | 210 | 105 | 2 | 2.5 | 4.4 | 125 | 2.7 | 5.5 | -40 to 125 | Cut Tape (CT) & Digi-Reel® | Active |
| ADA4891-4WARUZ-R7 | Analog Devices Inc. | CMOS | 170 | 105 | 2 | 2.5 | 4.4 | 125 | 2.7 | 5.5 | -40 to 125 | Cut Tape (CT) & Digi-Reel® | Active |
| BD12734FVJ-E2 | Rohm Semiconductor | General Purpose | 0.4 | 1 | 50 | 1 | 1.2 | 12 | 1.8 | 5 | -40 to 85 | Cut Tape (CT) & Digi-Reel® | Active |
| LMR934FVJ-E2 | Rohm Semiconductor | General Purpose | 0.35 | 1.4 | 5 | 1 | 0.25 | 90 | 1.8 | 5 | -40 to 85 | Cut Tape (CT) & Digi-Reel® | Active |
| LMV324Q1MTX/NOPB | Texas Instruments | General Purpose | 1 | 1 | 15 | 1.7 | 0.41 | 160 | 2.7 | 5.5 | -40 to 125 | Tape & Reel (TR) | Active |
| LMV324Q3MT/NOPB | Texas Instruments | General Purpose | 1 | 1 | 15 | 1.7 | 0.41 | 160 | 2.7 | 5.5 | -40 to 85 | Tube | Active |
| LMV344IPW | Texas Instruments | CMOS | 1 | 1 | 1 | 0.25 | 0.107 | 113 | 2.5 | 5.5 | -40 to 125 | Tube | Last Time Buy |
| LMV344IPWR | Texas Instruments | CMOS | 1 | 1 | 1 | 0.25 | 0.107 | 113 | 2.5 | 5.5 | -40 to 125 | Cut Tape (CT) & Digi-Reel® | Active |
| OPA4348AQPWRQ1 | Texas Instruments | CMOS | 0.5 | 1 | 8 | 1 | 0.045 | 10 | 2.1 | 5.5 | -40 to 125 | Tape & Reel (TR) | Active |
Engineering Selection Recommendations
High-Performance Substitutes (Enhanced Specifications):
The ADA4891-4ARUZ, ADA4891-4ARUZ-R7, and ADA4891-4WARUZ-R7 from Analog Devices Inc. offer significantly enhanced performance over the MCP664T-E/ST. These CMOS amplifiers provide slew rates of 170–210 V/µs (versus 32 V/µs), gain bandwidth products of 105 MHz (versus 60 MHz), and superior input bias current specifications (2 pA versus 6 pA). All three variants maintain the 14-TSSOP package format, rail-to-rail output configuration, and -40°C to 125°C operating temperature range. The ADA4891-4ARUZ-R7 and ADA4891-4WARUZ-R7 are available in Cut Tape & Digi-Reel® packaging with higher inventory levels (3494 and 50400 units respectively). All variants are ROHS3 compliant and active products.
Direct Functional Equivalents (Matching Performance Class):
The LMV324Q1MTX/NOPB and LMV324Q3MT/NOPB from Texas Instruments are general-purpose amplifiers with specifications closely aligned to the MCP664T-E/ST. Both maintain the 4-circuit, rail-to-rail, 14-TSSOP configuration and -40°C to 125°C operating temperature range. The LMV324Q1MTX/NOPB is available in Tape & Reel packaging (3900 units in stock) and carries AEC-Q100 automotive qualification. The LMV324Q3MT/NOPB is available in Tube packaging (973 units in stock) with a reduced operating temperature range of -40°C to 85°C.
Low-Power Alternatives:
The LMV344IPW and LMV344IPWR from Texas Instruments are CMOS amplifiers offering ultra-low supply current (107 µA across 4 channels) and exceptional input offset voltage (250 µV). These devices maintain full compatibility with the 14-TSSOP package and -40°C to 125°C operating range. The LMV344IPWR is in active product status with 29278 units available in Cut Tape & Digi-Reel® packaging. The LMV344IPW is designated Last Time Buy status with 2620 units in Tube packaging.
Low-Speed, Low-Power Options:
The BD12734FVJ-E2 and LMR934FVJ-E2 from Rohm Semiconductor are general-purpose amplifiers suitable for applications where reduced slew rate and bandwidth are acceptable. Both are available in Cut Tape & Digi-Reel® packaging with operating temperature ranges of -40°C to 85°C. The LMR934FVJ-E2 offers superior output current capability (90 mA per channel) and lower supply current (250 µA) compared to the BD12734FVJ-E2.
Automotive-Grade Option:
The OPA4348AQPWRQ1 from Texas Instruments is an automotive-qualified CMOS amplifier (AEC-Q100) with ultra-low supply current (45 µA across 4 channels). This device is available in Tape & Reel packaging with 26789 units in stock and maintains the -40°C to 125°C operating temperature range. The OPA4348AQPWRQ1 carries MSL-3 moisture sensitivity rating and is suitable for automotive applications requiring compliance certifications.
All substitute parts listed are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements equivalent to the MCP664T-E/ST.
Frequently Asked Questions (FAQ)
Q1: Can the ADA4891-4ARUZ series directly replace the MCP664T-E/ST in existing designs?
A: The ADA4891-4ARUZ, ADA4891-4ARUZ-R7, and ADA4891-4WARUZ-R7 share identical 14-TSSOP package geometry and pin configuration with the MCP664T-E/ST, enabling direct PCB-level substitution. However, the enhanced performance specifications (higher slew rate, greater bandwidth, lower input bias current) may require circuit validation to confirm compatibility with existing compensation networks and feedback topologies. Supply voltage ranges overlap (2.7–5.5 V for ADA4891 variants versus 2.5–5.5 V for MCP664T-E/ST), ensuring power supply compatibility.
Q2: What are the key differences between the ADA4891-4ARUZ and ADA4891-4WARUZ-R7?
A: Both devices are CMOS amplifiers with identical gain bandwidth product (105 MHz), input bias current (2 pA), and input offset voltage (2.5 mV). The primary difference is slew rate: ADA4891-4ARUZ provides 210 V/µs, while ADA4891-4WARUZ-R7 provides 170 V/µs. The ADA4891-4WARUZ-R7 offers significantly higher inventory availability (50400 units versus 2611 units for the standard variant) and is available exclusively in Cut Tape & Digi-Reel® packaging.
Q3: Are the LMV324 and LMV344 series interchangeable?
A: The LMV324 (general-purpose) and LMV344 (CMOS) series share the same 14-TSSOP package and 4-circuit configuration but differ in amplifier topology and performance characteristics. The LMV344 offers superior input offset voltage (250 µV versus 1.7 mV) and dramatically lower supply current (107 µA versus 410 µA). The LMV324 provides higher output current capability (160 mA versus 113 mA per channel). Selection depends on application requirements for precision, power consumption, and output drive capability.
Q4: What is the significance of packaging variants (Tube, Tape & Reel, Cut Tape & Digi-Reel®)?
A: Packaging variants affect handling, storage, and assembly processes but do not alter electrical performance or pin configuration. Tape & Reel (TR) packaging is standard for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® packaging provides flexibility for mixed-volume production. Tube packaging is used for lower-volume or manual assembly applications. All three packaging formats are compatible with the same PCB footprint and solder reflow profiles.
Q5: Why do some substitute parts have reduced operating temperature ranges (-40°C to 85°C versus -40°C to 125°C)?
A: The LMV324Q3MT/NOPB, BD12734FVJ-E2, and LMR934FVJ-E2 are specified for -40°C to 85°C operation due to manufacturer characterization and qualification limits. Applications requiring full -40°C to 125°C operation must select alternatives with extended temperature ratings, such as the LMV324Q1MTX/NOPB, ADA4891 series, LMV344 series, or OPA4348AQPWRQ1.
Q6: What does "Last Time Buy" status mean for the LMV344IPW?
A: Last Time Buy status indicates that Texas Instruments has announced end-of-life for this product. Existing inventory (2620 units) is available for purchase, but no future production is planned. For new designs or long-term supply requirements, the LMV344IPWR (active product status, 29278 units in stock) is the recommended alternative, offering identical electrical specifications and 14-TSSOP package compatibility.
Q7: Which substitute offers the lowest power consumption?
A: The OPA4348AQPWRQ1 provides the lowest supply current at 45 µA across 4 channels, followed by the LMR934FVJ-E2 at 250 µA. The LMV344 series (LMV344IPW and LMV344IPWR) offers 107 µA supply current. Selection of the lowest-power option depends on application requirements for bandwidth, slew rate, and output current capability, as these parameters correlate with power consumption.
Q8: Are all substitute parts RoHS3 compliant?
A: Yes, all substitute parts listed (ADA4891 series, BD12734FVJ-E2, LMR934FVJ-E2, LMV324 series, LMV344 series, and OPA4348AQPWRQ1) are ROHS3 compliant and REACH unaffected, matching the environmental compliance status of the MCP664T-E/ST.
Q9: Which substitute is recommended for automotive applications?
A: The OPA4348AQPWRQ1 is the only substitute with explicit automotive qualification (AEC-Q100). The LMV324Q1MTX/NOPB also carries AEC-Q100 qualification. Both devices are suitable for automotive-grade applications requiring compliance certifications. The OPA4348AQPWRQ1 offers ultra-low supply current, while the LMV324Q1MTX/NOPB provides higher output current capability.
Q10: What is the moisture sensitivity level (MSL) significance?
A: MSL-1 (unlimited) indicates no moisture sensitivity restrictions on storage or handling. The MCP664T-E/ST and all substitute parts except the OPA4348AQPWRQ1 carry MSL-1 rating. The OPA4348AQPWRQ1 carries MSL-3 (168 hours), requiring controlled humidity storage and bake-out procedures before reflow soldering. MSL-3 components are standard in automotive and high-reliability applications.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts