BU7266F-E2 Equivalent & Substitute Parts

Part Overview

The BU7266F-E2 is a CMOS amplifier integrated circuit manufactured by Rohm Semiconductor, configured as a 2-circuit rail-to-rail operational amplifier in an 8-SOP surface mount package. This device is classified as Active product status and is ROHS3 compliant. The BU7266F-E2 is designed for low-power applications requiring minimal input bias current and ultra-low supply current consumption. Equivalent and substitute parts are identified based on matching functional architecture, package compatibility, electrical performance parameters, and compliance certifications to enable direct component replacement or design flexibility in production environments.

Key Parameters

Parameter	Value	Unit
Manufacturer	Rohm Semiconductor	—
Part Number	BU7266F-E2	—
Category	Linear, Amplifiers	—
Amplifier Type	CMOS	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Package / Case	8-SOIC (0.173", 4.40mm Width)	—
Mounting Type	Surface Mount	—
Voltage - Supply Span (Min)	1.8	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 85	°C
Current - Supply	700	nA
Current - Input Bias	1	pA
Voltage - Input Offset	1	mV
Slew Rate	0.0024	V/µs
Gain Bandwidth Product	4	kHz
Current - Output / Channel	4	mA
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitute parts for the BU7266F-E2 are identified based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

Number of Circuits: 2 (dual-channel configuration)
Output Type: Rail-to-Rail (full supply voltage swing capability)
Package / Case: 8-SOIC or 8-SOP surface mount packages
Mounting Type: Surface Mount
Voltage Supply Range: Minimum 1.8 V to 5.5 V maximum
Operating Temperature Range: -40°C to 85°C or extended to 125°C
RoHS Compliance: ROHS3 Compliant

Secondary Performance Parameters:

Current - Supply: Low-power operation (700 nA baseline)
Current - Input Bias: Ultra-low input bias current (1 pA baseline)
Voltage - Input Offset: Low offset voltage (1 mV baseline)
Slew Rate: Performance-dependent substitution
Gain Bandwidth Product: Performance-dependent substitution
Current - Output / Channel: Output drive capability (4 mA baseline)

Substitute parts are grouped into three categories based on amplifier type and performance characteristics: General Purpose amplifiers (AZV358MTR-G1, ISL28213 series, ISL28214 series), Voltage Feedback amplifiers (ISL28291 series), and Audio amplifiers (LME49721 series). Each substitute maintains the dual-circuit, rail-to-rail, 8-SOIC package architecture while offering varying performance levels and supply current characteristics.

Parameter Comparison

Parameter	BU7266F-E2	AZV358MTR-G1	ISL28213FBZ	ISL28213FBZ-T13	ISL28214FBZ	ISL28214FBZ-T13	ISL28214FBZ-T7	ISL28291FBZ	ISL28291FBZ-T7	LME49721MA/NOPB	LME49721MAX/NOPB
Manufacturer	Rohm Semiconductor	Diodes Incorporated	Renesas Electronics	Renesas Electronics	Renesas Electronics	Renesas Electronics	Renesas Electronics	Renesas Electronics	Renesas Electronics	Texas Instruments	Texas Instruments
Number of Circuits	2	2	2	2	2	2	2	2	2	2	2
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Package / Case	8-SOIC (0.173", 4.40mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Voltage - Supply Span (Min)	1.8 V	2.7 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	3 V	3 V	2.2 V	2.2 V
Voltage - Supply Span (Max)	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Operating Temperature (Min)	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C
Operating Temperature (Max)	85°C	85°C	125°C	125°C	125°C	125°C	125°C	125°C	125°C	85°C	85°C
Current - Supply	700 nA	210 µA (x2)	90 µA (x2)	90 µA (x2)	300 µA (x2)	300 µA (x2)	300 µA (x2)	2.6 mA (x2)	2.6 mA (x2)	2.15 mA (x2)	2.15 mA (x2)
Current - Input Bias	1 pA	15 nA	3 pA	3 pA	3 pA	3 pA	3 pA	3 µA	3 µA	0.04 pA	0.04 pA
Voltage - Input Offset	1 mV	1.7 mV	500 µV	500 µV	500 µV	500 µV	500 µV	270 µV	270 µV	300 µV	300 µV
Slew Rate	0.0024 V/µs	1 V/µs	1 V/µs	1 V/µs	2.5 V/µs	2.5 V/µs	2.5 V/µs	17 V/µs	17 V/µs	8.5 V/µs	8.5 V/µs
Gain Bandwidth Product	4 kHz	1 MHz	2 MHz	2 MHz	5 MHz	5 MHz	5 MHz	61 MHz (-3dB)	61 MHz (-3dB)	20 MHz	20 MHz
Current - Output / Channel	4 mA	60 mA	22 mA	22 mA	31 mA	31 mA	31 mA	130 mA	130 mA	9.7 mA	9.7 mA
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, ensuring regulatory and supply chain continuity. Selection among substitute parts depends on application-specific performance requirements and supply voltage constraints.

For applications requiring minimum supply voltage of 1.8 V: ISL28213FBZ, ISL28213FBZ-T13, ISL28214FBZ, ISL28214FBZ-T13, ISL28214FBZ-T7, LME49721MA/NOPB, and LME49721MAX/NOPB are suitable. The BU7266F-E2 operates at 1.8 V minimum supply voltage; AZV358MTR-G1 requires minimum 2.7 V and ISL28291 series require minimum 3 V.

For applications with extended temperature range to 125°C: ISL28213FBZ, ISL28213FBZ-T13, ISL28214FBZ, ISL28214FBZ-T13, ISL28214FBZ-T7, ISL28291FBZ, and ISL28291FBZ-T7 support -40°C to 125°C operating range. The BU7266F-E2 and LME49721 series are rated to 85°C maximum.

For ultra-low supply current applications: The BU7266F-E2 at 700 nA supply current is the lowest consumption device. ISL28213 series at 90 µA (x2 channels) provides the next lowest consumption among general-purpose alternatives. ISL28291 series and LME49721 series consume significantly higher supply current (2.6 mA and 2.15 mA respectively).

For high-speed or high-slew-rate applications: ISL28291FBZ and ISL28291FBZ-T7 (17 V/µs slew rate, 61 MHz bandwidth) provide the highest performance. LME49721MA/NOPB and LME49721MAX/NOPB (8.5 V/µs slew rate, 20 MHz bandwidth) offer intermediate performance. ISL28214 series (2.5 V/µs) and ISL28213 series (1 V/µs) provide moderate performance. The BU7266F-E2 (0.0024 V/µs) is optimized for ultra-low-power, low-frequency applications.

For packaging considerations: The BU7266F-E2 uses 8-SOIC with 0.173" (4.40mm) width. All substitute parts use standard 8-SOIC with 0.154" (3.90mm) width. PCB layout and footprint verification is required for direct substitution.

For moisture sensitivity: The BU7266F-E2 and all Renesas ISL28213, ISL28214, and ISL28291 series carry MSL 1 (Unlimited). AZV358MTR-G1 carries MSL 3 (168 Hours). LME49721 series carry MSL 1 (Unlimited).

Frequently Asked Questions (FAQ)

Q: Can AZV358MTR-G1 directly replace BU7266F-E2 in all applications?

A: AZV358MTR-G1 is functionally compatible as a dual-channel, rail-to-rail, 8-SOIC surface mount amplifier. However, it requires minimum 2.7 V supply voltage compared to BU7266F-E2's 1.8 V minimum, and it consumes 210 µA supply current versus 700 nA. Applications operating at 1.8 V or requiring ultra-low power consumption cannot use AZV358MTR-G1. PCB footprint differences (0.173" versus 0.154" width) require layout verification.

Q: What is the primary difference between ISL28213 and ISL28214 series?

A: Both are dual-channel, rail-to-rail, general-purpose amplifiers in 8-SOIC packages with identical supply voltage ranges (1.8 V to 5.5 V) and extended temperature rating (-40°C to 125°C). ISL28214 series provides higher performance: 2.5 V/µs slew rate and 5 MHz gain bandwidth product versus ISL28213's 1 V/µs and 2 MHz. ISL28214 also provides higher output current (31 mA versus 22 mA) and higher supply current (300 µA versus 90 µA). Selection depends on required bandwidth and power budget.

Q: Are ISL28291FBZ and ISL28291FBZ-T7 electrically identical?

A: ISL28291FBZ and ISL28291FBZ-T7 are electrically identical voltage feedback amplifiers with identical electrical specifications. The difference is packaging: ISL28291FBZ is supplied in Tube packaging, while ISL28291FBZ-T7 is supplied in Tape & Reel (TR) packaging. Both support -40°C to 125°C operating temperature and carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: Why does BU7266F-E2 have lower slew rate and gain bandwidth product than substitute parts?

A: The BU7266F-E2 is optimized for ultra-low-power CMOS applications with 700 nA supply current and 1 pA input bias current. This optimization inherently limits slew rate (0.0024 V/µs) and gain bandwidth product (4 kHz). Substitute parts with higher performance metrics (ISL28291 at 17 V/µs, LME49721 at 8.5 V/µs) consume significantly more supply current. Application requirements determine whether performance or power consumption takes priority.

Q: Can LME49721MAX/NOPB replace BU7266F-E2 in battery-powered applications?

A: LME49721MAX/NOPB is not suitable for ultra-low-power battery applications. It cons

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