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LMP7732MAX/NOPB Equivalent & Substitute Parts
Part Overview
The LMP7732MAX/NOPB is a general purpose operational amplifier manufactured by Texas Instruments, featuring dual circuits in a rail-to-rail configuration. This device is classified as Active product status and is designed for applications requiring low input offset voltage and moderate bandwidth performance. The 8-SOIC surface mount package provides compact integration for analog signal processing circuits.
Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges while maintaining compatibility with the 8-SOIC package footprint and supply voltage requirements of 1.8V to 5.5V.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Output Type | Rail-to-Rail | — |
| Slew Rate | 2.4 | V/µs |
| Gain Bandwidth Product | 22 | MHz |
| Current - Input Bias | 14 | nA |
| Voltage - Input Offset | 6 | µV |
| Current - Supply (x2 Channels) | 5 | mA |
| Current - Output / Channel | 49 | mA |
| Voltage - Supply Span (Min) | 1.8 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 125 | °C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the LMP7732MAX/NOPB are evaluated based on the following critical parameters that determine functional equivalence:
Primary Compatibility Criteria:
- Dual-circuit configuration (2 circuits per package)
- Rail-to-rail output capability
- 8-SOIC package with 0.154" (3.90mm) width
- Supply voltage range: 1.8V to 5.5V minimum overlap
- Operating temperature range: -40°C to 125°C minimum overlap
- Surface mount technology
Secondary Performance Parameters:
- Slew rate (2.4V/µs baseline)
- Gain bandwidth product (22 MHz baseline)
- Input bias current (14 nA baseline)
- Input offset voltage (6 µV baseline)
- Supply current and output current capabilities
Substitutes are grouped into two categories based on performance characteristics:
Category A - Direct Performance Equivalents: Parts maintaining comparable slew rate and bandwidth specifications (ISL28214FBZ, LMV358IDT, LMV358IYDT)
Category B - Lower Performance Alternatives: Parts with reduced bandwidth and slew rate but maintaining core dual-circuit, rail-to-rail, 8-SOIC configuration (OPA2379AID, OPA2379AIDR, ISL28213FBZ, LMR932F-GE2)
Category C - Specialized Performance Trade-offs: Parts with different package dimensions or temperature ranges (BU7266F-E2, BU7266SF-E2, BU7486F-E2)
Parameter Comparison
| Part Number | Manufacturer | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Input Offset (µV) | Supply Current (mA) | Output Current (mA) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|
| LMP7732MAX/NOPB | Texas Instruments | 2.4 | 22 | 14 | 6 | 5 | 49 | -40 to 125 | 8-SOIC (3.90mm) |
| OPA2379AID | Texas Instruments | 0.03 | 0.09 | 0.005 | 400 | 0.0029 | 5 | -40 to 125 | 8-SOIC (3.90mm) |
| OPA2379AIDR | Texas Instruments | 0.03 | 0.09 | 0.005 | 400 | 0.0029 | 5 | -40 to 125 | 8-SOIC (3.90mm) |
| ISL28213FBZ | Renesas Electronics | 1 | 2 | 0.003 | 500 | 0.09 | 22 | -40 to 125 | 8-SOIC (3.90mm) |
| ISL28214FBZ | Renesas Electronics | 2.5 | 5 | 0.003 | 500 | 0.3 | 31 | -40 to 125 | 8-SOIC (3.90mm) |
| LMR932F-GE2 | Rohm Semiconductor | 0.35 | 1.4 | 5 | 1000 | 0.14 | 90 | -40 to 85 | 8-SOP (4.40mm) |
| LMV358IDT | STMicroelectronics | 0.45 | 1.3 | 16 | 100 | 0.162 | 160 | -40 to 125 | 8-SOIC (3.90mm) |
| LMV358IYDT | STMicroelectronics | 0.45 | 1.3 | 16 | 100 | 0.162 | 160 | -40 to 125 | 8-SOIC (3.90mm) |
| BU7266F-E2 | Rohm Semiconductor | 0.0024 | 0.004 | 0.001 | 1000 | 0.0007 | 4 | -40 to 85 | 8-SOP (4.40mm) |
| BU7266SF-E2 | Rohm Semiconductor | 0.0024 | 0.004 | 0.001 | 1000 | 0.0007 | 4 | -40 to 105 | 8-SOP (4.40mm) |
| BU7486F-E2 | Rohm Semiconductor | 10 | 10 | 0.001 | 1000 | 6 | 12 | -40 to 105 | 8-SOP (4.40mm) |
Engineering Selection Recommendations
For Direct Substitution (Matching Performance Profile):
ISL28214FBZ is the closest electrical equivalent, offering slew rate of 2.5V/µs and gain bandwidth product of 5 MHz, which closely approximates the LMP7732MAX/NOPB performance envelope. This part maintains the 8-SOIC (3.90mm) package footprint, dual-circuit configuration, rail-to-rail output, and full -40°C to 125°C operating temperature range. Both devices are ROHS3 compliant and REACH unaffected.
For Low-Power Applications:
OPA2379AID and OPA2379AIDR provide significantly reduced supply current (2.9µA versus 5mA), making these suitable for battery-powered or ultra-low-power designs. These parts maintain the identical package footprint and temperature range. The trade-off is substantially lower bandwidth (90 kHz) and slew rate (0.03V/µs), which is acceptable only for DC or very low-frequency signal processing.
For Extended Temperature Range:
LMV358IDT and LMV358IYDT maintain the full -40°C to 125°C operating range with 8-SOIC (3.90mm) packaging. LMV358IYDT includes AEC-Q100 automotive qualification. However, these parts exhibit lower slew rate (0.45V/µs) and bandwidth (1.3 MHz) compared to the LMP7732MAX/NOPB.
For Minimum Supply Voltage Requirement:
All listed substitutes maintain the 1.8V minimum supply voltage specification. However, BU7486F-E2 requires a minimum of 3V supply voltage and is therefore not suitable for 1.8V to 3V applications.
For Package Compatibility Constraints:
LMR932F-GE2, BU7266F-E2, BU7266SF-E2, and BU7486F-E2 use 8-SOP packages with 4.40mm width, which differs from the LMP7732MAX/NOPB 8-SOIC (3.90mm) footprint. These parts require PCB layout modification and are not pin-compatible drop-in replacements.
Frequently Asked Questions (FAQ)
Q: Can OPA2379AID be used as a direct replacement for LMP7732MAX/NOPB?
A: OPA2379AID is electrically compatible in terms of package, pin count, and supply voltage range. However, it is not a direct performance replacement. The OPA2379AID has significantly lower bandwidth (90 kHz versus 22 MHz) and slew rate (0.03V/µs versus 2.4V/µs). Use OPA2379AID only in applications where signal frequencies are below 10 kHz and slew rate requirements are minimal.
Q: What is the difference between OPA2379AID and OPA2379AIDR?
A: Both parts are electrically identical with the same performance specifications. The difference is packaging: OPA2379AID is supplied in Tube packaging, while OPA2379AIDR is supplied in Cut Tape (CT) & Digi-Reel format. Selection depends on assembly process requirements and inventory management preferences.
Q: Why do BU7266F-E2 and BU7266SF-E2 have different temperature ranges?
A: BU7266F-E2 operates from -40°C to 85°C, while BU7266SF-E2 extends to -40°C to 105°C. Both are CMOS amplifiers with identical electrical performance. The extended temperature variant (BU7266SF-E2) is suitable for industrial or automotive applications requiring higher temperature operation.
Q: Is LMV358IDT suitable for automotive applications?
A: LMV358IDT is a commercial-grade device. For automotive applications, use LMV358IYDT, which carries AEC-Q100 qualification. Both parts have identical electrical specifications but LMV358IYDT meets automotive reliability and testing standards.
Q: Can I use BU7486F-E2 in a 1.8V supply circuit?
A: No. BU7486F-E2 requires a minimum supply voltage of 3V and cannot operate at 1.8V. The LMP7732MAX/NOPB supports 1.8V minimum, so BU7486F-E2 is not suitable for low-voltage applications.
Q: What is the impact of using ISL28213FBZ instead of ISL28214FBZ?
A: ISL28213FBZ has lower slew rate (1V/µs versus 2.5V/µs) and bandwidth (2 MHz versus 5 MHz). Both maintain the same package and temperature range. ISL28213FBZ is suitable for applications with lower frequency content and reduced slew rate requirements, offering lower supply current (90µA versus 300µA).
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed substitute parts carry ROHS3 compliance certification. All are also REACH unaffected, matching the environmental compliance profile of the LMP7732MAX/NOPB.
Q: What is the moisture sensitivity level for substitute parts?
A: OPA2379AID, OPA2379AIDR, BU7266F-E2, BU7266SF-E2, and BU7486F-E2 have MSL 1 (Unlimited), identical to the main part. ISL28213FBZ and ISL28214FBZ also have MSL 1. LMR932F-GE2 and LMV358 variants have MSL 1. All parts are suitable for standard PCB assembly processes without special moisture control requirements.
Q: Can LMR932F-GE2 be used in place of LMP7732MAX/NOPB?
A: LMR932F-GE2 uses an 8-SOP package (4.40mm width) instead of 8-SOIC (3.90mm), requiring PCB layout changes. Additionally, the maximum operating temperature is 85°C versus 125°C for the main part. Use LMR932F-GE2 only when PCB redesign is acceptable and temperature requirements do not exceed 85°C.
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