TLE2021QDREP Equivalent & Substitute Parts

Part Overview

The TLE2021QDREP is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device is classified as a linear amplifier with a single circuit configuration and is currently in active product status. The TLE2021QDREP operates across a wide supply voltage range of 4V to 40V and maintains functionality over an extended temperature range of -40°C to 125°C, making it suitable for diverse industrial and commercial applications.

Substitute parts are identified when equivalent functional performance can be achieved within the constraints of the application's electrical and mechanical requirements. The primary substitute for the TLE2021QDREP is the AD548JRZ-REEL7 from Analog Devices Inc., which shares the same package form factor and general-purpose amplifier classification.

Substiute Parts

TLE2021QDREP

Texas InstrumentsIn Stock: 3833TLE2021QDREP Datasheet

Current PartRFQ

AD548JRZ-REEL7

Analog Devices Inc.In Stock: 2803AD548JRZ-REEL7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLE2021QDREP is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must utilize the 8-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm Width) to ensure direct PCB footprint compatibility without layout modifications.

Functional Classification: Both devices must be classified as general-purpose operational amplifiers with a single circuit configuration, ensuring equivalent functional scope within the application.

Regulatory Compliance: Both parts must maintain ROHS3 compliance and REACH unaffected status to satisfy environmental and regulatory requirements for equivalent substitution.

Supply Voltage Operating Range: The substitute part's supply voltage span must encompass or be compatible with the application's required operating voltage window. The TLE2021QDREP operates from 4V to 40V; the substitute must support the specific voltage requirements of the target application.

Operating Temperature Range: The substitute part's temperature rating must satisfy the application's thermal environment. The TLE2021QDREP supports -40°C to 125°C operation.

Electrical Performance Characteristics: Slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current per channel are secondary selection criteria that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

The TLE2021QDREP and AD548JRZ-REEL7 share identical 8-SOIC package geometry, enabling direct PCB footprint compatibility. Both devices maintain active product status and satisfy ROHS3 and REACH compliance requirements, confirming their suitability for current design implementations.

Supply Voltage Considerations:

The TLE2021QDREP operates across a supply voltage range of 4V to 40V, while the AD548JRZ-REEL7 operates from 9V to 36V. Applications requiring operation below 9V supply voltage must use the TLE2021QDREP. Applications requiring operation above 36V supply voltage must use the TLE2021QDREP. The AD548JRZ-REEL7 is suitable only for applications operating within the 9V to 36V window.

Operating Temperature Considerations:

The TLE2021QDREP supports operation from -40°C to 125°C, while the AD548JRZ-REEL7 supports operation from 0°C to 70°C. Applications requiring extended temperature operation below 0°C or above 70°C must use the TLE2021QDREP.

Electrical Performance Trade-offs:

The TLE2021QDREP provides higher gain bandwidth product (2 MHz versus 1 MHz) and higher output current capability (20 mA versus 15 mA per channel). The AD548JRZ-REEL7 provides lower input bias current (50 pA versus 25 nA), lower input offset voltage (750 µV versus 120 µV), and lower supply current (170 µA versus 200 µA). Selection between these devices depends on whether the application prioritizes bandwidth and output drive capability or input bias current and offset voltage performance.

Frequently Asked Questions (FAQ)

Q: Can the AD548JRZ-REEL7 be used as a direct replacement for the TLE2021QDREP in all applications?

A: No. The AD548JRZ-REEL7 has a narrower supply voltage range (9V to 36V versus 4V to 40V) and narrower operating temperature range (0°C to 70°C versus -40°C to 125°C). Substitution is valid only when the application's supply voltage and operating temperature requirements fall within the AD548JRZ-REEL7 specifications.

Q: Are the package dimensions identical between these two parts?

A: Yes. Both the TLE2021QDREP and AD548JRZ-REEL7 use the 8-SOIC package with dimensions of 0.154" width and 3.90mm width. No PCB layout modifications are required for package compatibility.

Q: What are the key electrical differences between these amplifiers?

A: The TLE2021QDREP offers higher gain bandwidth product (2 MHz) and higher output current (20 mA per channel). The AD548JRZ-REEL7 offers lower input bias current (50 pA) and lower supply current (170 µA). The choice depends on whether the application requires higher bandwidth and output drive or lower input bias current.

Q: Do both parts meet current environmental compliance standards?

A: Yes. Both the TLE2021QDREP and AD548JRZ-REEL7 are ROHS3 compliant and REACH unaffected, satisfying current environmental and regulatory requirements.

Q: What is the minimum supply voltage for each part?

A: The TLE2021QDREP operates at a minimum supply voltage of 4V. The AD548JRZ-REEL7 operates at a minimum supply voltage of 9V. Applications requiring operation below 9V must use the TLE2021QDREP.

Q: What is the maximum operating temperature for each part?

A: The TLE2021QDREP operates up to 125°C. The AD548JRZ-REEL7 operates up to 70°C. Applications requiring operation above 70°C must use the TLE2021QDREP.