EL2142CSZ-T7 Equivalent & Substitute Parts

Part Overview

The EL2142CSZ-T7 is a differential amplifier integrated circuit manufactured by Renesas Electronics Corporation, housed in an 8-SOIC surface mount package. This device is classified as obsolete, indicating discontinued production and limited availability in the market. The part operates across a supply voltage range of 6 V to 12.6 V with a slew rate of 400 V/µs and gain bandwidth product of 200 MHz, making it suitable for high-speed differential signal processing applications. Due to its obsolete status, identifying functionally equivalent substitute parts is necessary for design continuity, system maintenance, and procurement planning.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Differential	—
Number of Circuits	1	—
Slew Rate	400	V/µs
Gain Bandwidth Product	200	MHz
-3dB Bandwidth	150	MHz
Current - Input Bias	6	µA
Voltage - Input Offset	10	mV
Current - Supply	11	mA
Current - Output / Channel	60	mA
Voltage - Supply Span (Min)	6	V
Voltage - Supply Span (Max)	12.6	V
Operating Temperature	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	3 (168 Hours)	—

Substitute Part Grouping Explanation

Substitute parts for the EL2142CSZ-T7 are evaluated based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

Package compatibility: 8-SOIC surface mount form factor
Operating temperature range: -40°C to 85°C
Supply voltage compatibility: Overlap within 6 V to 12.6 V range
Single circuit configuration
Surface mount mounting type
RoHS3 compliance and environmental certifications

Secondary Performance Criteria:

Slew rate: 400 V/µs or higher
Gain bandwidth product: 200 MHz or higher
Input bias current: 6 µA or lower
Output current capability: 60 mA or higher per channel
Input offset voltage: 10 mV or lower

Substitute parts are grouped into two categories: direct functional equivalents and performance-enhanced alternatives. Direct equivalents maintain differential amplifier topology. Performance-enhanced alternatives include transimpedance, variable gain, and voltage feedback amplifier types that operate within the same package and electrical envelope, offering superior specifications in specific parameters while maintaining compatibility with the original application envelope.

Parameter Comparison

Parameter	EL2142CSZ-T7	EL5172ISZ-T7	AD8015ARZ	LMH6505MA/NOPB	LMH6505MAX/NOPB	OPA656U/2K5	OPA656UB
Manufacturer	Renesas	Renesas	Analog Devices	Texas Instruments	Texas Instruments	Burr Brown	Texas Instruments
Amplifier Type	Differential	Differential	Transimpedance	Variable Gain	Variable Gain	Voltage Feedback	Voltage Feedback
Number of Circuits	1	1	1	1	1	1	1
Slew Rate (V/µs)	400	800	—	1500	1500	295	295
Gain Bandwidth Product (MHz)	200	100	240	—	—	230	230
-3dB Bandwidth (MHz)	150	250	—	150	150	500	500
Current - Input Bias (µA)	6	6	—	0.0006	0.0006	0.000002	0.000001
Voltage - Input Offset (mV)	10	7	—	—	—	0.25	0.25
Current - Supply (mA)	11	5.6	25	11	11	14	14
Current - Output / Channel (mA)	60	—	—	80	80	70	70
Voltage - Supply Span (Min)	6	4.75	4.5	7	7	8	8
Voltage - Supply Span (Max)	12.6	11	11	12	12	12	12
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	Obsolete	Active	Active	Active	Active	Last Time Buy
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	—	3 (168 Hours)

Engineering Selection Recommendations

Direct Functional Equivalent:

The EL5172ISZ-T7 is the closest direct substitute for the EL2142CSZ-T7. Both devices are differential amplifiers manufactured by Renesas Electronics in identical 8-SOIC packages with matching operating temperature ranges. The EL5172ISZ-T7 offers superior performance with doubled slew rate (800 V/µs versus 400 V/µs), lower input offset voltage (7 mV versus 10 mV), and reduced supply current (5.6 mA versus 11 mA). The EL5172ISZ-T7 features push-pull output topology and extended -3dB bandwidth (250 MHz versus 150 MHz). Both parts are obsolete; however, the EL5172ISZ-T7 maintains higher inventory availability (3250 units versus 2163 units). The EL5172ISZ-T7 carries superior moisture sensitivity rating (MSL 1 versus MSL 3), indicating better long-term reliability in storage and field conditions.

Active Product Alternatives:

For applications requiring active product status and extended lifecycle support, the LMH6505MA/NOPB and LMH6505MAX/NOPB (Texas Instruments variable gain amplifiers) provide compatible electrical operation within the same 8-SOIC package. These devices maintain identical supply current (11 mA) and -3dB bandwidth (150 MHz) as the original part, with significantly improved input bias current (600 nA versus 6 µA) and higher output current capability (80 mA versus 60 mA). Both LMH6505 variants are active products with unlimited moisture sensitivity rating and superior slew rate performance (1500 V/µs).

The OPA656UB (Texas Instruments voltage feedback amplifier) offers the highest performance specifications with 230 MHz gain bandwidth product, 500 MHz -3dB bandwidth, and exceptional input bias current (1 pA). The OPA656UB is classified as Last Time Buy, indicating limited future availability. The OPA656U/2K5 (Burr Brown equivalent) provides identical electrical specifications with active product status.

The AD8015ARZ (Analog Devices transimpedance amplifier) operates within compatible supply voltage and temperature ranges with 240 MHz gain bandwidth product. This device is active and carries superior moisture sensitivity rating (MSL 1). Higher supply current (25 mA) and different amplifier topology require circuit-level evaluation for functional compatibility.

Compliance and Certification:

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility. The EL5172ISZ-T7 and active alternatives (LMH6505 series, OPA656UB) provide superior moisture sensitivity ratings (MSL 1) compared to the original part (MSL 3), reducing risk in storage and field deployment scenarios.

Frequently Asked Questions (FAQ)

Q: Can the EL5172ISZ-T7 directly replace the EL2142CSZ-T7 without circuit modifications?

A: The EL5172ISZ-T7 is mechanically and electrically compatible within the same 8-SOIC package and operating temperature range. Both devices are differential amplifiers with single circuit configuration. The EL5172ISZ-T7 features push-pull output topology versus the original part's unspecified output type. Circuit-level evaluation is required to confirm functional compatibility, particularly regarding output impedance, load characteristics, and feedback network design. The improved performance specifications (higher slew rate, lower input offset voltage, reduced supply current) generally enable direct substitution in most applications.

Q: What is the primary difference between the EL5172ISZ-T7 and the LMH6505 series?

A: The EL5172ISZ-T7 is a differential amplifier with fixed gain characteristics, while the LMH6505MA/NOPB and LMH6505MAX/NOPB are variable gain amplifiers with programmable gain control. Both operate in identical 8-SOIC packages with matching supply current (11 mA) and -3dB bandwidth (150 MHz). The LMH6505 series offers superior input bias current (600 nA versus 6 µA) and higher output current capability (80 mA versus 60 mA). Selection depends on whether fixed or variable gain functionality is required in the application.

Q: Why do the OPA656 devices show lower slew rate than the original EL2142CSZ-T7?

A: The OPA656U/2K5 and OPA656UB voltage feedback amplifiers are optimized for wideband, unity-gain stable operation with 500 MHz -3dB bandwidth and 230 MHz gain bandwidth product. The lower slew rate (295 V/µs versus 400 V/µs) reflects different circuit topology and optimization priorities. These devices excel in applications requiring extremely wide bandwidth and low input bias current (1-2 pA range). Slew rate performance is application-dependent; higher bandwidth capability often compensates for lower slew rate in high-frequency signal processing.

Q: Are the LMH6505MA/NOPB and LMH6505MAX/NOPB electrically identical?

A: The LMH6505MA/NOPB and LMH6505MAX/NOPB are electrically identical devices with identical electrical specifications. The primary difference is packaging format: LMH6505MA/NOPB is supplied in tube packaging, while LMH6505MAX/NOPB is supplied in cut tape and Digi-Reel format. Both maintain active product status, ROHS3 compliance, and unlimited moisture sensitivity rating. Selection between these variants depends on procurement and assembly process requirements.

Q: What does "Last Time Buy" status mean for the OPA656UB?

A: Last Time Buy status indicates the manufacturer has announced end-of-life for the OPA656UB, with a final purchase opportunity before discontinuation. Existing inventory remains available, but no future production is planned. The OPA656UB is suitable for current design implementations; however, long-term production programs should consider transitioning to active alternatives such as the OPA656U/2K5 (Burr Brown equivalent) or the LMH6505 series to ensure supply continuity.

Q: How does moisture sensitivity level affect component selection?

A: Moisture Sensitivity Level (MSL) indicates the maximum time a component can be exposed to ambient conditions (23°C, 50% relative humidity) before baking is required. MSL 1 (unlimited) components require no time-based storage restrictions. MSL 3 (168 hours) components must be baked if exposed to ambient conditions for more than 168 hours. The EL2142CSZ-T7 carries MSL 3 rating, while most active substitutes (EL5172ISZ-T7, LMH6505 series, AD8015ARZ) carry MSL 1 rating. For applications with extended storage periods or field deployment in humid environments, MSL 1 rated components provide superior reliability and reduced handling complexity.

Q: Is the AD8015ARZ suitable as a direct replacement despite different amplifier type?

A: The AD8015ARZ is a transimpedance amplifier, fundamentally different from the differential amplifier topology of the EL2142CSZ-T7. While both operate in 8-SOIC packages with compatible supply voltage and temperature ranges, transimpedance amplifiers are optimized for photodiode and current-input applications, whereas differential amplifiers process voltage signals. Direct substitution requires circuit-level analysis to confirm functional compatibility. The AD8015ARZ is listed as a similar alternative for applications where transimpedance functionality aligns with system requirements.

Q: What supply voltage range must be verified when substituting parts?

A: The EL2142CSZ-T7 operates across 6 V to 12.6 V supply range. Substitute parts must operate within overlapping voltage ranges. The EL5172ISZ-T7 operates 4.75 V to 11 V (compatible with 6 V to 11 V overlap). The LMH6505 series operates 7 V to 12 V (compatible with 7 V to 12 V overlap). The OPA656 devices operate 8 V to 12 V (compatible with 8 V to 12 V overlap). Applications using supply voltages below 7 V must select EL5172ISZ-T7 or AD8015ARZ. Applications using supply voltages above 12 V are limited to EL2142CSZ-T7 or EL5172ISZ-T7.

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