Request Quote
(Ships tomorrow)
BU7266SF-E2 Equivalent & Substitute Parts
Part Overview
The BU7266SF-E2 is a CMOS amplifier integrated circuit manufactured by Rohm Semiconductor, featuring two independent circuits in an 8-SOP surface mount package. This device is classified as a linear amplifier with rail-to-rail output capability and operates across a wide supply voltage range of 1.8 V to 5.5 V. The component is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).
Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across critical parameters including supply voltage range, output type, package configuration, and operating temperature specifications. Alternative components may be required due to inventory availability, lead time considerations, or specific application performance requirements.
Substiute Parts
Key Parameters
| Parameter | BU7266SF-E2 Value | Unit |
|---|---|---|
| Amplifier Type | CMOS | — |
| Number of Circuits | 2 | — |
| Output Type | Rail-to-Rail | — |
| Slew Rate | 0.0024 | V/µs |
| Gain Bandwidth Product | 4 | kHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 1 | mV |
| Current - Supply | 700 | nA |
| Current - Output / Channel | 4 | mA |
| Voltage - Supply Span (Min) | 1.8 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 105 | °C |
| Mounting Type | Surface Mount | — |
| Package / Case | 8-SOIC (0.173", 4.40mm Width) | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the BU7266SF-E2 are grouped based on strict compatibility criteria derived from the electrical and mechanical parameters that define functional equivalence. The primary substitution parameters are:
Critical Compatibility Parameters:
- Number of circuits: 2 independent amplifier circuits required
- Output type: Rail-to-rail output capability
- Supply voltage range: Minimum 1.8 V to maximum 5.5 V overlap
- Package type: 8-pin SOIC surface mount configuration
- Operating temperature range: Minimum -40°C operation required
- RoHS3 compliance and MSL rating for manufacturing compatibility
Performance Differentiation Parameters: Substitute parts are further categorized by amplifier type (CMOS, General Purpose, Audio, or Voltage Feedback), slew rate, gain bandwidth product, and supply current characteristics. These parameters determine suitability for specific application requirements while maintaining mechanical and electrical compatibility.
The substitute parts listed below satisfy the core compatibility criteria and are available in equivalent or superior performance configurations. Parts are presented without ranking or preference, as selection depends on specific application requirements beyond the scope of this reference.
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Number of Circuits | Output Type | Slew Rate (V/µs) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Package | MSL |
|---|---|---|---|---|---|---|---|---|---|---|
| BU7266SF-E2 | Rohm Semiconductor | CMOS | 2 | Rail-to-Rail | 0.0024 | 1.8 | 5.5 | -40 to 105 | 8-SOIC (0.173") | 1 |
| AZV358MTR-G1 | Diodes Incorporated | General Purpose | 2 | Rail-to-Rail | 1 | 2.7 | 5.5 | -40 to 85 | 8-SOIC (0.154") | 3 |
| ISL28213FBZ | Renesas Electronics | General Purpose | 2 | Rail-to-Rail | 1 | 1.8 | 5.5 | -40 to 125 | 8-SOIC (0.154") | 1 |
| ISL28213FBZ-T13 | Renesas Electronics | General Purpose | 2 | Rail-to-Rail | 1 | 1.8 | 5.5 | -40 to 125 | 8-SOIC (0.154") | 1 |
| ISL28214FBZ | Renesas Electronics | General Purpose | 2 | Rail-to-Rail | 2.5 | 1.8 | 5.5 | -40 to 125 | 8-SOIC (0.154") | 1 |
| ISL28214FBZ-T13 | Renesas Electronics | General Purpose | 2 | Rail-to-Rail | 2.5 | 1.8 | 5.5 | -40 to 125 | 8-SOIC (0.154") | 1 |
| ISL28214FBZ-T7 | Renesas Electronics | General Purpose | 2 | Rail-to-Rail | 2.5 | 1.8 | 5.5 | -40 to 125 | 8-SOIC (0.154") | 1 |
| ISL28291FBZ | Renesas Electronics | Voltage Feedback | 2 | Rail-to-Rail | 17 | 3 | 5.5 | -40 to 125 | 8-SOIC (0.154") | 1 |
| ISL28291FBZ-T7 | Renesas Electronics | Voltage Feedback | 2 | Rail-to-Rail | 17 | 3 | 5.5 | -40 to 125 | 8-SOIC (0.154") | 1 |
| LME49721MA/NOPB | Texas Instruments | Audio | 2 | Rail-to-Rail | 8.5 | 2.2 | 5.5 | -40 to 85 | 8-SOIC (0.154") | 1 |
| LME49721MAX/NOPB | Texas Instruments | Audio | 2 | Rail-to-Rail | 8.5 | 2.2 | 5.5 | -40 to 85 | 8-SOIC (0.154") | 1 |
Engineering Selection Recommendations
All substitute parts listed in this reference maintain active product status with RoHS3 compliance and REACH unaffected designation, confirming regulatory compatibility for current manufacturing and deployment.
Supply Voltage Compatibility: The BU7266SF-E2 operates across 1.8 V to 5.5 V. All listed substitutes support the 5.5 V maximum. The ISL28213, ISL28214, and Renesas ISL28291 series maintain the 1.8 V minimum specification. The AZV358MTR-G1 and LME49721 series specify 2.7 V and 2.2 V minimums respectively, which restricts operation in applications requiring 1.8 V supply levels.
Operating Temperature Range: The BU7266SF-E2 operates to 105°C maximum. The ISL28213, ISL28214, and ISL28291 series extend to 125°C, providing enhanced thermal margin. The AZV358MTR-G1 and LME49721 series are rated to 85°C maximum, which may limit suitability for high-temperature applications.
Moisture Sensitivity: The BU7266SF-E2 carries MSL 1 (unlimited). The ISL28213, ISL28214, ISL28291, and LME49721 series maintain MSL 1 compatibility. The AZV358MTR-G1 specifies MSL 3 (168 hours), requiring controlled storage and handling procedures.
Package Considerations: The BU7266SF-E2 is packaged in 8-SOIC with 0.173" (4.40mm) width. All substitute parts use standard 8-SOIC with 0.154" (3.90mm) width, which is mechanically compatible with standard PCB footprints but requires verification of board layout spacing if the original design was optimized for the wider package.
Frequently Asked Questions (FAQ)
Q: Can the AZV358MTR-G1 replace the BU7266SF-E2 in all applications?
A: The AZV358MTR-G1 maintains electrical compatibility for supply voltages above 2.7 V and operating temperatures below 85°C. Applications requiring 1.8 V supply operation or temperatures above 85°C require alternative selections. The AZV358MTR-G1 also carries MSL 3 rating, requiring controlled moisture handling during manufacturing.
Q: What is the primary difference between the ISL28213 and ISL28214 series?
A: Both devices are general purpose amplifiers with 2 circuits in 8-SOIC packages. The ISL28214 series provides higher slew rate (2.5 V/µs versus 1 V/µs) and higher gain bandwidth product (5 MHz versus 2 MHz), suitable for applications requiring faster signal response. Both maintain identical supply voltage range (1.8 V to 5.5 V) and operating temperature range (-40°C to 125°C).
Q: Are the ISL28291 series suitable for low-frequency applications like the BU7266SF-E2?
A: The ISL28291 series are voltage feedback amplifiers with significantly higher performance specifications (17 V/µs slew rate, 61 MHz bandwidth) compared to the BU7266SF-E2 (0.0024 V/µs slew rate, 4 kHz bandwidth). While electrically compatible, the ISL28291 series are optimized for high-frequency applications and may introduce unnecessary cost and power consumption in low-frequency designs. The ISL28291 series also require minimum 3 V supply, restricting 1.8 V operation.
Q: What packaging differences exist between the BU7266SF-E2 and substitute parts?
A: The BU7266SF-E2 uses 8-SOIC with 0.173" (4.40mm) width. All substitute parts use standard 8-SOIC with 0.154" (3.90mm) width. Both packages are mechanically compatible with standard 8-pin SOIC footprints. PCB layout verification is recommended if the original design incorporated spacing optimized for the wider package variant.
Q: Which substitute parts maintain the lowest supply current specification?
A: The BU7266SF-E2 specifies 700 nA supply current. The ISL28213 series provides 90 µA per channel (180 µA total), and the ISL28214 series provide 300 µA per channel (600 µA total). The AZV358MTR-G1 specifies 210 µA per channel (420 µA total). The LME49721 series specify 2.15 mA per channel (4.3 mA total). Applications with strict power budget constraints should prioritize the BU7266SF-E2 or evaluate the ISL28213 series as the next lowest-power option.
Q: Can substitute parts be used interchangeably on the same PCB?
A: All substitute parts use standard 8-SOIC surface mount packages compatible with common PCB footprints. However, pin-to-pin electrical characteristics vary across amplifier types. Circuit design verification is required to confirm that substitute part performance specifications (slew rate, bandwidth, output current) meet application requirements. Schematic review is necessary to identify any design dependencies on specific electrical characteristics of the original BU7266SF-E2.
Q: What is the significance of the packaging designation (CT vs. TR vs. Tube)?
A: Cut Tape (CT) & Digi-Reel® packaging is suitable for automated pick-and-place assembly with standard tape feeders. Tape & Reel (TR) packaging provides higher volume quantities on continuous reels for high-speed production lines. Tube packaging is used for lower-volume applications and manual assembly. All three packaging formats contain identical die and electrical specifications; selection depends on manufacturing process and volume requirements.
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