MAX4227ESA Equivalent & Substitute Parts

Part Overview

The MAX4227ESA is a dual-channel current feedback amplifier manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface mount package. This device is classified as obsolete, indicating discontinued production and limited availability for new designs. The MAX4227ESA delivers a slew rate of 1700V/µs with a -3dB bandwidth of 600 MHz, making it suitable for high-speed signal conditioning applications. Due to its obsolete status, identifying functionally equivalent active alternatives is essential for design continuity, supply chain reliability, and long-term product support.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Current Feedback	—
Number of Circuits	2	Channels
Slew Rate	1700	V/µs
-3dB Bandwidth	600	MHz
Current - Input Bias	2	µA
Voltage - Input Offset	500	µV
Current - Supply (per Channel)	6	mA
Current - Output / Channel	80	mA
Voltage - Supply Span (Min)	5.7	V
Voltage - Supply Span (Max)	11	V
Operating Temperature	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the MAX4227ESA is determined by strict adherence to the following electrical and mechanical criteria:

Primary Substitution Criteria:

Amplifier Type: Current Feedback (mandatory match)
Number of Circuits: 2 channels (mandatory match)
Package / Case: 8-SOIC form factor (mandatory match)
Mounting Type: Surface Mount (mandatory match)
Operating Temperature Range: -40°C to 85°C (mandatory match)

Secondary Compatibility Parameters:

Slew Rate: 1700V/µs or greater
-3dB Bandwidth: 600 MHz or greater
Current - Input Bias: 2 µA or lower
Voltage - Input Offset: 500 µV or lower
Current - Supply: 6 mA per channel or lower
Current - Output / Channel: 80 mA or greater
Voltage - Supply Span: 5.7V minimum to 11V maximum (or wider range)

Substitute parts are grouped into two categories: Direct Pin-Compatible Substitutes (identical electrical performance and compliance status) and Functional Equivalents (meet or exceed performance specifications with different compliance or status profiles).

Parameter Comparison

Parameter	MAX4227ESA	MAX4227ESA+	AD8008ARZ	AD8008ARZ-REEL	AD8012ARZ	EL5263ISZ	LMH6715MA/NOPB
Amplifier Type	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback
Number of Circuits	2	2	2	2	2	2	2
Slew Rate (V/µs)	1700	1700	1000	1000	2250	4000	1300
-3dB Bandwidth (MHz)	600	600	500	500	350	500	400
Current - Input Bias (µA)	2	2	4	4	3	2	—
Voltage - Input Offset (µV)	500	500	500	500	1500	1500	—
Current - Supply (mA, x2 Channels)	6	6	9	9	1.7	1.5	5.8
Current - Output / Channel (mA)	80	80	130	130	125	100	70
Voltage - Supply Span Min (V)	5.7	5.7	5	5	3	5	±5
Voltage - Supply Span Max (V)	11	11	12	12	12	12	±6
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Package / Case	8-SOIC	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	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Obsolete	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

MAX4227ESA+ (Direct Replacement)

The MAX4227ESA+ is the primary substitute for the MAX4227ESA. Both devices share identical electrical specifications: 1700V/µs slew rate, 600 MHz bandwidth, 2 µA input bias current, and 500 µV input offset voltage. The MAX4227ESA+ is manufactured by Analog Devices Inc./Maxim Integrated with active product status and ROHS3 compliance, addressing the obsolescence and regulatory limitations of the original part. Packaging is supplied in Tube format with 1207 units in stock. This part is recommended for direct substitution in existing designs without circuit modification.

AD8008ARZ and AD8008ARZ-REEL (Performance Trade-off)

The AD8008ARZ and AD8008ARZ-REEL are functionally equivalent alternatives manufactured by Analog Devices Inc. Both devices feature 1000V/µs slew rate and 500 MHz bandwidth, representing a reduction from the MAX4227ESA specification. However, both deliver superior output current capability (130 mA per channel versus 80 mA) and wider supply voltage range (5V to 12V). These parts are active products with ROHS3 compliance. AD8008ARZ is supplied in Tube packaging (1663 units in stock), while AD8008ARZ-REEL is supplied in Tape & Reel format (2102 units in stock). Selection between these variants depends on assembly process requirements.

AD8012ARZ (High-Speed Alternative)

The AD8012ARZ is a high-performance substitute offering 2250V/µs slew rate and 350 MHz bandwidth. This device features significantly lower supply current (1.7 mA per channel) and wider supply voltage range (3V to 12V), making it suitable for power-constrained applications. Input offset voltage is higher at 1.5 mV. The AD8012ARZ is active with ROHS3 compliance and 1583 units in stock. This part is selected when slew rate performance and power efficiency are prioritized over bandwidth.

EL5263ISZ (Ultra-High-Speed Alternative)

The EL5263ISZ, manufactured by Renesas Electronics Corporation, delivers the highest slew rate among substitutes at 4000V/µs with 500 MHz bandwidth. This device features the lowest supply current (1.5 mA per channel) and matches the MAX4227ESA input bias current at 2 µA. However, the EL5263ISZ is classified as obsolete with Moisture Sensitivity Level 3 (168 hours), requiring controlled storage conditions. ROHS3 compliance is confirmed. This part is selected only when ultra-high slew rate is critical and supply chain continuity is not a concern. 3526 units are in stock.

LMH6715MA/NOPB (Video Application Variant)

The LMH6715MA/NOPB, manufactured by National Semiconductor, is optimized for video signal conditioning with 1300V/µs slew rate and 400 MHz bandwidth. This device features lower output current (70 mA per channel) and is supplied in the VIP10™ series. Supply voltage specification is expressed as ±5V to ±6V dual supply or 10V to 12V single supply. The part is active with 2437 units in stock. This part is selected for video and RF applications where the specific performance profile aligns with system requirements.

Frequently Asked Questions (FAQ)

Q1: Can MAX4227ESA+ be used as a direct drop-in replacement for MAX4227ESA?

A: Yes. The MAX4227ESA+ is electrically identical to the MAX4227ESA with matching slew rate (1700V/µs), bandwidth (600 MHz), input bias current (2 µA), and output current capability (80 mA per channel). Both devices use the 8-SOIC package with identical pinout. The primary difference is product status: MAX4227ESA+ is active with ROHS3 compliance, while MAX4227ESA is obsolete and non-compliant. No circuit modification is required.

Q2: What are the performance trade-offs when substituting with AD8008ARZ?

A: The AD8008ARZ reduces slew rate from 1700V/µs to 1000V/µs and bandwidth from 600 MHz to 500 MHz. However, it increases output current capability from 80 mA to 130 mA per channel and expands the supply voltage range to 5V–12V. Input offset voltage remains at 500 µV. This substitution is acceptable for applications where the reduced slew rate and bandwidth do not impact system performance, but higher output current is beneficial.

Q3: Why is EL5263ISZ listed as obsolete despite being a substitute option?

A: The EL5263ISZ is included as a functional equivalent because it meets all mandatory substitution criteria (current feedback topology, dual-channel configuration, 8-SOIC package, surface mount, -40°C to 85°C operating range). However, its obsolete status and Moisture Sensitivity Level 3 classification indicate limited future availability and special handling requirements. This part is suitable only for applications where supply chain continuity is not a primary concern and controlled storage conditions can be maintained.

Q4: What is the difference between AD8008ARZ and AD8008ARZ-REEL?

A: Both devices are electrically identical with 1000V/µs slew rate and 500 MHz bandwidth. The difference is packaging format: AD8008ARZ is supplied in Tube format for manual assembly or small-volume production, while AD8008ARZ-REEL is supplied in Tape & Reel format for automated pick-and-place assembly. Selection depends on manufacturing process requirements. AD8008ARZ-REEL has higher inventory (2102 units) compared to AD8008ARZ (1663 units).

Q5: Is the LMH6715MA/NOPB suitable for general-purpose high-speed amplification?

A: The LMH6715MA/NOPB is optimized for video and RF applications within the VIP10™ series. While it meets the dual-channel, current feedback, 8-SOIC, and surface mount criteria, its 1300V/µs slew rate and 400 MHz bandwidth are lower than the MAX4227ESA. Additionally, output current is limited to 70 mA per channel. This part is selected specifically for video signal conditioning applications where its performance profile is matched to system requirements, not for general-purpose high-speed amplification.

Q6: Can I use AD8012ARZ in a design that requires 600 MHz bandwidth?

A: No. The AD8012ARZ provides only 350 MHz bandwidth, which is insufficient for applications requiring 600 MHz. While the AD8012ARZ offers superior slew rate (2250V/µs) and lower power consumption (1.7 mA per channel), the bandwidth limitation makes it unsuitable for this requirement. Select MAX4227ESA+, AD8008ARZ, or EL5263ISZ if 600 MHz bandwidth is mandatory.

Q7: What compliance considerations apply when substituting the MAX4227ESA?

A: The MAX4227ESA is RoHS non-compliant. All active substitutes (MAX4227ESA+, AD8008ARZ, AD8008ARZ-REEL, AD8012ARZ) are ROHS3 compliant, meeting current environmental regulations. The EL5263ISZ is also ROHS3 compliant but is obsolete. If RoHS compliance is a design requirement, select from the active, compliant alternatives. The LMH6715MA/NOPB RoHS status is not specified in the provided data.

Q8: Which substitute offers the best power efficiency?

A: The EL5263ISZ and AD8012ARZ offer the lowest supply current at 1.5 mA and 1.7 mA per channel, respectively. The EL5263ISZ additionally provides the highest slew rate (4000V/µs). However, the EL5263ISZ is obsolete. The AD8012ARZ is the recommended choice for power-constrained applications requiring active product status, delivering 1.7 mA per channel supply current with ROHS3 compliance and active availability.

Q9: Are all substitute parts available in the same package format?

A: All substitute parts use the 8-SOIC (0.154", 3.90mm width) surface mount package, ensuring mechanical compatibility. However, packaging formats differ: MAX4227ESA+ and LMH6715MA/NOPB are supplied in Tube format, AD8008ARZ is supplied in Tube format, AD8008ARZ-REEL is supplied in Tape & Reel format, AD8012ARZ is supplied in Tube format, and EL5263ISZ is supplied in Tube format. Verify packaging format compatibility with your assembly process before procurement.

Q10: What is the input bias current difference between substitutes?

A: Input bias current ranges from 2 µA to 4 µA across substitutes. The MAX4227ESA, MAX4227ESA+, and EL5263ISZ specify 2 µA. The AD8008ARZ and AD8008ARZ-REEL specify 4 µA. The AD8012ARZ specifies 3 µA. The LMH6715MA/NOPB does not specify input bias current in the provided data. For applications sensitive to input bias current, select MAX4227ESA+, EL5263ISZ, or verify LMH6715MA/NOPB specifications from the manufacturer datasheet.

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