EL5261IS Current Feedback Amplifier Equivalent & Substitute Parts

Part Overview

The EL5261IS is a current feedback amplifier integrated circuit manufactured by Renesas Electronics Corporation, configured as a dual-channel operational amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, indicating it has reached end-of-life status and is no longer in active production. The EL5261IS delivers a slew rate of 1700V/µs with a -3dB bandwidth of 200 MHz, making it suitable for high-speed signal conditioning applications. Due to its obsolete status, identifying functionally equivalent substitute components is necessary for design continuity, system maintenance, and new production implementations where legacy performance specifications must be maintained or exceeded.

Key Parameters

Parameter	EL5261IS Value	Unit
Amplifier Type	Current Feedback	—
Number of Circuits	2	Channels
Slew Rate	1700	V/µs
-3dB Bandwidth	200	MHz
Current - Input Bias	5	µA
Voltage - Input Offset	1.6	mV
Current - Supply (per Channel)	750	µA
Current - Output per Channel	70	mA
Voltage - Supply Span (Min)	5	V
Voltage - Supply Span (Max)	10	V
Operating Temperature Range	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Product Status	Obsolete	—
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitute parts for the EL5261IS are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are: dual-channel current feedback amplifier topology, 8-SOIC surface mount package, operating temperature range of -40°C to 85°C, and electrical performance within acceptable ranges for slew rate, bandwidth, supply voltage span, and output current capability.

The substitute parts are grouped into two categories:

Category 1: Direct Performance Equivalents — Parts with slew rate and bandwidth specifications that match or exceed the EL5261IS baseline (1700V/µs slew rate, 200 MHz bandwidth), maintaining compatibility with existing circuit designs without performance degradation.

Category 2: Enhanced Performance Alternatives — Parts with superior electrical characteristics (higher slew rate, greater bandwidth, lower input offset voltage, or improved supply current efficiency) that provide functional substitution with performance enhancement. These parts operate within the same supply voltage range and package footprint, enabling direct board-level replacement.

All substitute parts maintain the 8-SOIC package specification, surface mount configuration, and dual-channel architecture. Supply voltage span compatibility is verified for each substitute to ensure operation within the 5V to 10V range specified for the EL5261IS.

Parameter Comparison

Parameter	EL5261IS	AD8002ARZ	AD8008ARZ	AD8012ARZ-REEL7	AD8072JRZ	LMH6724MA/NOPB	Unit
Amplifier Type	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	—
Number of Circuits	2	2	2	2	2	2	Channels
Slew Rate	1700	1200	1000	2250	500	600	V/µs
-3dB Bandwidth	200	600	500	350	100	370	MHz
Current - Input Bias	5	5	4	3	—	2	µA
Voltage - Input Offset	1.6	2	0.5	1.5	—	1	mV
Current - Supply (per Channel)	750	10000	9000	1700	3500	1000	µA
Current - Output per Channel	70	70	130	125	30	110	mA
Voltage - Supply Span (Min)	5	6	5	3	5 / ±2.5	4.5	V
Voltage - Supply Span (Max)	10	12	12	12	12 / ±6	12	V
Operating Temperature	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	°C
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	—
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	—
Product Status	Obsolete	Active	Active	Active	Last Time Buy	Active	—
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not specified	—

Engineering Selection Recommendations

For Direct Replacement with Enhanced Performance:

The AD8008ARZ and AD8008ARZ-REEL variants (Analog Devices) provide the most suitable substitution path. These devices maintain the 8-SOIC package and dual-channel current feedback architecture while delivering superior electrical characteristics: 1000V/µs slew rate, 500 MHz bandwidth, and 130 mA output current per channel. The supply voltage range (5V to 12V) encompasses the EL5261IS specification. Both variants carry ROHS3 compliance and active product status, ensuring long-term availability and regulatory alignment. The AD8008ARZ-REEL and AD8008ARZ-REEL7 packaging options support high-volume production requirements.

For Supply Voltage Extended Range Applications:

The AD8012ARZ-REEL7 (Analog Devices) extends the minimum supply voltage to 3V while maintaining the 12V maximum, offering greater design flexibility. This device delivers 2250V/µs slew rate and 350 MHz bandwidth with reduced supply current (1.7 mA per channel). ROHS3 compliance and active status confirm production viability.

For Legacy System Maintenance:

The AD8072JRZ and AD8072JRZ-REEL7 (Analog Devices) represent lower-performance alternatives suitable for applications where the EL5261IS bandwidth and slew rate exceed actual circuit requirements. These devices operate at 100 MHz bandwidth and 500V/µs slew rate with minimal supply current (3.5 mA). Product status is Last Time Buy, indicating limited future availability.

For Power-Efficient Designs:

The LMH6724MA/NOPB (National Semiconductor) delivers 370 MHz bandwidth with only 1 mA supply current per channel, the lowest among all substitutes. Slew rate of 600V/µs and 110 mA output current per channel support most signal conditioning applications. Supply voltage range (4.5V to 12V) provides compatibility with the EL5261IS specification.

All recommended substitutes maintain the 8-SOIC surface mount package, enabling direct PCB footprint compatibility without layout modification.

Frequently Asked Questions (FAQ)

Q1: Can the AD8002ARZ directly replace the EL5261IS in existing designs?

The AD8002ARZ shares the 8-SOIC package and dual-channel current feedback topology. However, the supply current specification differs significantly: AD8002ARZ requires 10 mA per channel versus 750 µA for the EL5261IS. This 13-fold increase in supply current consumption may require power supply redesign. The AD8002ARZ delivers 600 MHz bandwidth, exceeding the EL5261IS 200 MHz specification. Electrical compatibility exists, but power budget impact must be evaluated.

Q2: What is the primary difference between AD8008ARZ and AD8008ARZ-REEL variants?

Both variants are electrically identical with matching electrical specifications. The difference is packaging format: AD8008ARZ is supplied in Tube packaging for manual handling and lower-volume applications, while AD8008ARZ-REEL and AD8008ARZ-REEL7 are supplied in Tape & Reel format optimized for automated assembly and high-volume production. Selection depends on manufacturing process requirements, not electrical performance.

Q3: Why does the LMH6724MA/NOPB have lower supply current than the EL5261IS?

The LMH6724MA/NOPB incorporates advanced power management architecture delivering 1 mA supply current per channel compared to the EL5261IS 750 µA specification. This represents improved efficiency in the current feedback amplifier design. Lower supply current reduces thermal dissipation and power supply loading, beneficial for battery-powered or thermally constrained applications.

Q4: Is the AD8072JRZ suitable for high-speed applications?

The AD8072JRZ operates at 100 MHz bandwidth and 500V/µs slew rate, significantly lower than the EL5261IS 200 MHz and 1700V/µs specifications. This device is classified as Last Time Buy, indicating discontinued production. Selection should be limited to legacy system maintenance where performance requirements are known to be below the EL5261IS baseline.

Q5: What does ROHS3 compliance mean for component selection?

ROHS3 compliance indicates the component meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. The EL5261IS is RoHS non-compliant. All recommended Analog Devices substitutes carry ROHS3 compliance, enabling use in applications with environmental or regulatory requirements. Compliance status should be verified against end-product requirements.

Q6: Can supply voltage range differences affect circuit operation?

The EL5261IS operates from 5V to 10V. Substitute parts specify ranges from 3V to 12V (AD8012ARZ-REEL7) or 4.5V to 12V (LMH6724MA/NOPB). The EL5261IS specification is fully contained within all substitute ranges. However, if the original design operates at the 5V minimum, verify that the substitute part's performance specifications (slew rate, bandwidth, offset voltage) are maintained at this voltage level, as some parameters may degrade at supply extremes.

Q7: Does package footprint compatibility guarantee electrical compatibility?

No. While all substitutes use the 8-SOIC package with identical physical dimensions, electrical compatibility requires verification of: supply voltage range overlap, slew rate and bandwidth adequacy for the application, output current capability, input bias current, and input offset voltage. The parameter comparison table provides these specifications for detailed evaluation.

Q8: What inventory considerations apply to substitute selection?

Current inventory levels vary significantly: AD8008ARZ-REEL7 has 1481 units, AD8002ARZ-R7 has 4201 units, and LMH6715MA has 22645 units. For production programs requiring sustained component supply, parts with higher inventory and active product status (AD8008 variants, AD8012ARZ-REEL7, LMH6724MA/NOPB) provide greater availability assurance than Last Time Buy or obsolete alternatives.

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