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LMP7718MME/NOPB Equivalent & Substitute Parts
Part Overview
The LMP7718MME/NOPB is a general purpose operational amplifier manufactured by Texas Instruments, configured as a dual-channel (2 circuit) rail-to-rail amplifier in an 8-VSSOP surface mount package. This device is classified as Active product status and is ROHS3 compliant. The LMP7718MME/NOPB is suitable for applications requiring moderate bandwidth and low input bias current characteristics. Substitute parts are identified when equivalent electrical performance parameters and mechanical compatibility are required due to inventory constraints, design optimization, or application-specific performance needs.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Output Type | Rail-to-Rail | — |
| Slew Rate | 11.5 | V/µs |
| Gain Bandwidth Product | 88 | MHz |
| Current - Input Bias | 0.1 | pA |
| Voltage - Input Offset | 10 | µV |
| Current - Supply (x2 Channels) | 1.3 | mA |
| Current - Output / Channel | 60 | mA |
| Voltage - Supply Span (Min) | 2 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 125 | °C |
| Mounting Type | Surface Mount | — |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | — |
| Supplier Device Package | 8-VSSOP | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the LMP7718MME/NOPB are grouped based on compatibility across the following critical parameters:
Mechanical Compatibility:
- Surface mount configuration
- 8-pin package footprint (8-VSSOP, 8-TSSOP, or 8-MSOP)
- Package width tolerance (0.110" to 0.118")
Electrical Compatibility:
- Dual-channel (2 circuit) configuration
- Rail-to-rail output capability
- Supply voltage range overlap (minimum 2.0 V to 2.7 V; maximum 5.5 V)
- Operating temperature range (-40°C minimum; 125°C or 85°C maximum)
Performance Characteristics:
- Slew rate (11.5 V/µs baseline; substitutes range from 0.0024 V/µs to 210 V/µs depending on application requirements)
- Gain bandwidth product (88 MHz baseline; substitutes range from 4 kHz to 105 MHz)
- Input bias current (0.1 pA baseline; substitutes range from 1 pA to 15 nA)
- Output current per channel (60 mA baseline; substitutes range from 4 mA to 160 mA)
Substitutes are presented in groups reflecting their primary amplifier topology classification (Transimpedance, CMOS, or Voltage Feedback) and packaging format (Tape & Reel, Cut Tape, or Tube).
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Input Bias (pA) | Input Offset (µV) | Supply Current (mA) | Output Current (mA) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Package | MSL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LMP7718MME/NOPB | Texas Instruments | General Purpose | 11.5 | 88 | 0.1 | 10 | 1.3 | 60 | 2.0 | 5.5 | -40 to 125 | 8-VSSOP | 1 |
| OPA2381AIDGKR | Texas Instruments | Transimpedance | 12 | 18 | 3 | 7 | 0.8 | 10 | 2.7 | 5.5 | -40 to 125 | 8-VSSOP | 2 |
| OPA2381AIDGKT | Texas Instruments | Transimpedance | 12 | 18 | 3 | 7 | 0.8 | 10 | 2.7 | 5.5 | -40 to 125 | 8-VSSOP | 2 |
| ADA4891-2ARMZ | Analog Devices Inc. | CMOS | 210 | 105 | 2 | 2500 | 4.4 | 125 | 2.7 | 5.5 | -40 to 125 | 8-MSOP | 1 |
| ADA4891-2ARMZ-R7 | Analog Devices Inc. | CMOS | 210 | 105 | 2 | 2500 | 4.4 | 125 | 2.7 | 5.5 | -40 to 125 | 8-MSOP | 1 |
| ADA4891-2ARMZ-RL | Analog Devices Inc. | CMOS | 210 | 105 | 2 | 2500 | 4.4 | 125 | 2.7 | 5.5 | -40 to 125 | 8-MSOP | 1 |
| BU7266FVM-TR | Rohm Semiconductor | CMOS | 0.0024 | 0.004 | 1 | 1000 | 0.0007 | 4 | 1.8 | 5.5 | -40 to 85 | 8-MSOP | 1 |
| BU7266SFVM-TR | Rohm Semiconductor | CMOS | 0.0024 | 0.004 | 1 | 1000 | 0.0007 | 4 | 1.8 | 5.5 | -40 to 105 | 8-MSOP | 1 |
| BU7486FVM-TR | Rohm Semiconductor | CMOS | 10 | 10 | 1 | 1000 | 6 | 12 | 3.0 | 5.5 | -40 to 105 | 8-MSOP | 1 |
| LMV358DMR2G | onsemi | Voltage Feedback | 1 | 1 | 1000 | 1700 | 0.1 | 160 | 2.7 | 5.5 | -40 to 85 | 8-MSOP | 1 |
| LMV358M8G-13 | Diodes Incorporated | General Purpose | 1 | 1 | 15000 | 1700 | 0.19 | 90 | 2.7 | 5.5 | -40 to 125 | 8-MSOP | 3 |
Engineering Selection Recommendations
Selection of substitute parts for the LMP7718MME/NOPB is determined by application-specific performance requirements and compliance certifications:
For Direct Electrical Equivalence (General Purpose Amplifier Applications): The LMV358M8G-13 (Diodes Incorporated) maintains the general purpose amplifier classification and extended operating temperature range (-40°C to 125°C) matching the primary device. This part is suitable for applications where the lower slew rate (1 V/µs) and gain bandwidth product (1 MHz) are acceptable trade-offs for reduced input bias current and extended temperature performance.
For High-Speed Applications (Slew Rate and Bandwidth Priority): The ADA4891-2ARMZ series (Analog Devices Inc.) provides significantly elevated slew rate (210 V/µs) and gain bandwidth product (105 MHz), suitable for applications requiring faster signal transients and higher frequency response. Three packaging variants are available: Tube (ADA4891-2ARMZ), Cut Tape with Digi-Reel (ADA4891-2ARMZ-R7), and Tape & Reel (ADA4891-2ARMZ-RL). All variants maintain MSL 1 (Unlimited) moisture sensitivity and ROHS3 compliance.
For Low-Power Applications (Supply Current Priority): The BU7266FVM-TR and BU7266SFVM-TR (Rohm Semiconductor) offer ultra-low supply current (700 nA) and minimal power consumption, appropriate for battery-powered or energy-constrained designs. The BU7266SFVM-TR extends the operating temperature range to 105°C compared to the standard BU7266FVM-TR (85°C maximum).
For Transimpedance Applications (Photodiode Transimpedance Amplifier): The OPA2381AIDGKR and OPA2381AIDGKT (Texas Instruments) are classified as transimpedance amplifiers with comparable slew rate (12 V/µs) and extended temperature range (-40°C to 125°C). Both variants maintain ROHS3 compliance and are available in Tape & Reel (AIDGKR) and Cut Tape with Digi-Reel (AIDGKT) packaging formats.
For Standard Voltage Feedback Applications: The LMV358DMR2G (onsemi) provides voltage feedback amplifier topology with the highest output current per channel (160 mA) among substitutes, suitable for applications requiring substantial load driving capability. Operating temperature range is limited to -40°C to 85°C.
All substitute parts maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification consistent with the primary device.
Frequently Asked Questions (FAQ)
Q: Can the OPA2381AIDGKR replace the LMP7718MME/NOPB in all applications?
A: The OPA2381AIDGKR is classified as a transimpedance amplifier rather than a general purpose amplifier. While both devices share dual-channel rail-to-rail configuration, 8-VSSOP packaging, and compatible supply voltage ranges, the OPA2381AIDGKR is optimized for photodiode transimpedance applications. The lower gain bandwidth product (18 MHz versus 88 MHz) and reduced output current per channel (10 mA versus 60 mA) make it unsuitable for general purpose applications requiring the LMP7718MME/NOPB's performance envelope. Substitution is valid only when application requirements align with transimpedance amplifier specifications.
Q: What is the difference between ADA4891-2ARMZ, ADA4891-2ARMZ-R7, and ADA4891-2ARMZ-RL?
A: These three part numbers represent identical electrical specifications and performance characteristics. The differences are packaging and delivery format only: ADA4891-2ARMZ is supplied in Tube packaging, ADA4891-2ARMZ-R7 is supplied in Cut Tape with Digi-Reel format, and ADA4891-2ARMZ-RL is supplied in Tape & Reel format. All three maintain MSL 1 (Unlimited) moisture sensitivity level and are suitable for automated assembly processes.
Q: Why does the LMV358M8G-13 have a higher input bias current (15 nA) compared to the LMP7718MME/NOPB (0.1 pA)?
A: The LMP7718MME/NOPB employs a specialized input stage design achieving exceptionally low input bias current (0.1 pA). The LMV358M8G-13, while classified as a general purpose amplifier with extended temperature range, uses a conventional CMOS input stage resulting in higher input bias current (15 nA). This difference is significant for high-impedance signal source applications. Substitution is appropriate only when input bias current specifications are not critical to circuit performance.
Q: Are the BU7266 series amplifiers suitable for high-frequency applications?
A: No. The BU7266FVM-TR and BU7266SFVM-TR are ultra-low-power amplifiers with extremely limited bandwidth (4 kHz gain bandwidth product) and minimal slew rate (0.0024 V/µs). These devices are designed for DC and very low-frequency signal conditioning applications. They are not suitable for applications requiring the LMP7718MME/NOPB's 88 MHz gain bandwidth product or 11.5 V/µs slew rate.
Q: What is the significance of MSL (Moisture Sensitivity Level) ratings?
A: MSL ratings indicate the maximum time a component can be exposed to ambient conditions (23°C, 50% relative humidity) before requiring baking prior to reflow soldering. MSL 1 (Unlimited) indicates no time restriction and is suitable for standard manufacturing environments. MSL 2 (1 Year) and MSL 3 (168 Hours) require controlled storage and handling. The LMP7718MME/NOPB carries MSL 1, as do most substitute parts except OPA2381 variants (MSL 2) and LMV358M8G-13 (MSL 3).
Q: Can I use the LMV358DMR2G as a direct replacement for the LMP7718MME/NOPB?
A: The LMV358DMR2G shares mechanical compatibility (8-MSOP package, surface mount) and dual-channel rail-to-rail configuration. However, electrical performance differs significantly: slew rate is reduced to 1 V/µs (versus 11.5 V/µs), gain bandwidth product is 1 MHz (versus 88 MHz), and input bias current is substantially higher (1 nA versus 0.1 pA). Additionally, the operating temperature range is limited to -40°C to 85°C. Substitution is valid only for low-frequency, low-speed applications where these performance reductions are acceptable.
Q: What supply voltage range is common to all substitute parts?
A: The common supply voltage range across all substitute parts is 2.7 V to 5.5 V maximum. The LMP7718MME/NOPB supports a lower minimum supply voltage (2.0 V). Applications requiring operation below 2.7 V are incompatible with all listed substitute parts. The BU7266 series extends the minimum supply voltage to 1.8 V, providing greater flexibility for ultra-low-voltage applications.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, consistent with the primary LMP7718MME/NOPB device. All parts carry EAR99 export classification.
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