EL2276CSZ-T7 Equivalent & Substitute Parts

Part Overview

The EL2276CSZ-T7 is a Current Feedback Amplifier (CFA) manufactured by Renesas Electronics Corporation, configured as a dual-circuit operational amplifier in a 14-SOIC surface mount package. This device is classified as obsolete, indicating discontinued production and limited availability for new designs. The identification of equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this amplifier topology.

Substiute Parts

EL2276CSZ-T7

Renesas Electronics CorporationIn Stock: 1014EL2276CSZ-T7 Datasheet

Current PartRFQ

LT1259IS#TRPBF

Analog Devices Inc.In Stock: 1071LT1259IS#TRPBF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EL2276CSZ-T7 is determined by strict alignment of the following critical parameters:

Functional Topology: Both the main part and substitute must be Current Feedback Amplifiers with dual-circuit (2-channel) configuration to maintain circuit behavior and application compatibility.

Package Compatibility: The 14-SOIC surface mount package with 0.154" (3.90mm) width is a mandatory requirement for mechanical and electrical interconnection compatibility with existing printed circuit board layouts.

Electrical Performance Envelope: Substitute parts must operate within the specified supply voltage range (minimum 3V, maximum 12V) and support the operating temperature range of -40°C to 85°C. The input bias current, input offset voltage, output current per channel, and slew rate characteristics must be compatible with the application's signal processing requirements.

Compliance Standards: RoHS3 compliance and REACH unaffected status ensure regulatory alignment for manufacturing and distribution.

The LT1259IS#TRPBF from Analog Devices Inc. qualifies as a substitute based on these criteria, with enhanced performance characteristics in bandwidth and slew rate while maintaining functional equivalence in topology and package form factor.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The EL2276CSZ-T7 is classified as obsolete, indicating end-of-life status and declining inventory availability. The LT1259IS#TRPBF maintains active product status with Analog Devices Inc., ensuring ongoing manufacturing support, technical documentation, and supply chain continuity.

Compliance Alignment: Both devices maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for manufacturing and distribution in regulated markets.

Performance Enhancement: The LT1259IS#TRPBF provides superior performance characteristics, including doubled slew rate (1600V/µs versus 800V/µs) and nearly doubled bandwidth (130 MHz versus 70 MHz). These enhancements support higher-frequency signal processing applications while maintaining backward compatibility with the dual-circuit topology and 14-SOIC package form factor.

Supply Voltage Flexibility: The substitute part accommodates an extended supply voltage range (4V to 30V maximum) compared to the main part (3V to 12V maximum), providing greater design flexibility for multi-supply applications.

Moisture Sensitivity: The substitute part features improved moisture sensitivity level (MSL 1 with unlimited shelf life) compared to the main part (MSL 3 with 168-hour limitation), reducing handling and storage constraints during manufacturing and logistics operations.

Frequently Asked Questions (FAQ)

Q: Can the LT1259IS#TRPBF be used as a direct replacement for the EL2276CSZ-T7 in existing circuit designs?

A: The LT1259IS#TRPBF is functionally equivalent in topology (dual-circuit current feedback amplifier) and package form factor (14-SOIC surface mount). Both devices operate within the -40°C to 85°C temperature range and support the required supply voltage envelope. Pin-for-pin compatibility exists for the 14-SOIC package. However, the enhanced performance characteristics (higher slew rate and bandwidth) and increased supply current consumption must be evaluated within the context of the specific application circuit design.

Q: What are the key differences between the EL2276CSZ-T7 and LT1259IS#TRPBF?

A: The primary differences are: (1) Product status—the EL2276CSZ-T7 is obsolete while the LT1259IS#TRPBF is active; (2) Slew rate—800V/µs versus 1600V/µs; (3) Bandwidth—70 MHz versus 130 MHz; (4) Supply current per channel—1 mA versus 5 mA; (5) Input bias current—4 µA versus 20 µA; (6) Supply voltage range—3V to 12V versus 4V to 30V; (7) Moisture sensitivity—MSL 3 versus MSL 1. These differences reflect generational advancement in amplifier design and manufacturing processes.

Q: Are there any packaging considerations when substituting the LT1259IS#TRPBF for the EL2276CSZ-T7?

A: Both devices utilize the 14-SOIC (0.154", 3.90mm width) surface mount package. The physical dimensions and pin assignments are identical, enabling direct mechanical substitution on existing printed circuit boards without layout modifications. The LT1259IS#TRPBF is supplied in Tape & Reel (TR) packaging format, which is standard for automated assembly operations.

Q: Does the increased supply current consumption of the LT1259IS#TRPBF affect power supply design?

A: The LT1259IS#TRPBF draws 5 mA per channel (10 mA total for dual circuits) compared to 1 mA per channel (2 mA total) for the EL2276CSZ-T7. Applications with power-constrained designs must account for this four-fold increase in quiescent current consumption. Power supply capacity and thermal management should be evaluated accordingly.

Q: What compliance certifications apply to both devices?

A: Both the EL2276CSZ-T7 and LT1259IS#TRPBF maintain ROHS3 compliance and REACH unaffected status. These certifications satisfy regulatory requirements for hazardous substance restrictions and chemical safety in manufacturing and distribution operations.

Q: Is the LT1259IS#TRPBF suitable for applications requiring the original 3V minimum supply voltage specification?

A: The LT1259IS#TRPBF specifies a 4V minimum supply voltage, which is 1V higher than the EL2276CSZ-T7 minimum of 3V. Applications operating at 3V supply voltage cannot use the LT1259IS#TRPBF without redesigning the power supply architecture to accommodate the higher minimum voltage requirement.