TLV1548QDBREP Equivalent & Substitute Parts

Part Overview

The TLV1548QDBREP is a 10-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for data acquisition applications requiring 8 single-ended analog inputs with SPI digital interface. The device operates across a wide supply voltage range of 2.7V to 5.5V for both analog and digital domains, with a sampling rate of 87 kSPS and external reference configuration. Currently in active production status with 863 units in stock, this component is widely used in industrial measurement, sensor interface, and embedded data acquisition systems.

Alternative part numbers may be required due to packaging format availability, automotive-grade qualification needs, or inventory constraints across different distribution channels.

Substiute Parts

TLV1548QDBREP

Texas InstrumentsIn Stock: 883TLV1548QDBREP Datasheet

Current PartRFQ

TLV1548QDBRG4Q1

Texas InstrumentsIn Stock: 4154TLV1548QDBRG4Q1 Datasheet

Parametric EquivalentRFQ

TLV1548QDBRQ1

Texas InstrumentsIn Stock: 2271TLV1548QDBRQ1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLV1548QDBREP is determined by strict parametric equivalence across all electrical and mechanical specifications. The following criteria define valid substitutes:

Core Electrical Parameters (Must Match Exactly):

• Resolution: 10 bits
• Sampling Rate: 87 kSPS
• Number of Inputs: 8 single-ended channels
• Data Interface: SPI protocol
• Supply Voltage Range: 2.7V to 5.5V (analog and digital)
• Operating Temperature Range: -40°C to 125°C
• Architecture: SAR (Successive Approximation Register)
• Reference Configuration: External reference

Mechanical Parameters (Must Match Exactly):

• Package Type: 20-SSOP
• Package Dimensions: 0.209" width, 5.30mm width
• Mounting Type: Surface Mount

Allowed Variations:

• Packaging format: Tape & Reel (TR) or Cut Tape (CT)
• Automotive qualification and AEC-Q100 certification (additive feature, does not restrict substitution)
• Inventory availability across distribution channels

All identified substitutes maintain identical base product number (TLV1548) and share complete parametric compatibility with the main part number.

Parameter Comparison

Engineering Selection Recommendations

TLV1548QDBREP (Tape & Reel, Standard Grade)

• Primary selection for high-volume production environments requiring standard packaging format
• Suitable for industrial and commercial applications
• Active product status with established supply chain

TLV1548QDBRG4Q1 (Tape & Reel, Automotive Grade)

• Qualified to AEC-Q100 automotive standards
• Recommended for automotive and safety-critical applications
• Identical electrical and mechanical specifications to main part
• Higher inventory availability (4098 units)

TLV1548QDBRQ1 (Cut Tape, Automotive Grade)

• Qualified to AEC-Q100 automotive standards
• Cut Tape packaging suitable for lower-volume or prototype applications
• Identical electrical and mechanical specifications to main part
• Intermediate inventory availability (2200 units)

All three part numbers are manufactured by Texas Instruments, maintain active product status, and comply with ROHS3 and REACH requirements. Selection between alternatives depends on packaging format requirements and automotive qualification necessity for the end application.

Frequently Asked Questions (FAQ)

Q: Can TLV1548QDBRG4Q1 be used as a direct replacement for TLV1548QDBREP? A: Yes. Both parts share identical electrical specifications (10-bit resolution, 87 kSPS sampling rate, 8 single-ended inputs, SPI interface, 2.7V-5.5V supply range, -40°C to 125°C operating temperature) and mechanical specifications (20-SSOP package, surface mount). The primary difference is automotive-grade qualification (AEC-Q100) on the G4Q1 variant, which does not restrict its use in standard applications.

Q: What is the difference between Tape & Reel and Cut Tape packaging? A: Tape & Reel (TR) packaging is used for high-volume automated assembly processes, where components are supplied on continuous tape spools. Cut Tape (CT) packaging provides individual component strips cut from the reel, suitable for lower-volume production, prototyping, or manual assembly. Both formats contain identical components with the same electrical and mechanical specifications.

Q: Are all three part numbers pin-compatible? A: Yes. All three variants use the 20-SSOP package with identical pinout, dimensions (0.209" width, 5.30mm width), and surface mount configuration. PCB layouts and schematics designed for one part number are directly compatible with the others.

Q: Why would I choose the automotive-grade variants if I don't need automotive qualification? A: Automotive-grade parts (TLV1548QDBRG4Q1 and TLV1548QDBRQ1) undergo additional qualification testing and screening per AEC-Q100 standards, resulting in higher reliability margins. These variants may be selected for mission-critical or high-reliability applications outside the automotive sector. Inventory availability may also influence selection, as the G4Q1 variant currently has higher stock levels (4098 units).

Q: Can I mix different part numbers in the same production batch? A: Yes, provided your application does not require specific automotive qualification or packaging format consistency. All three part numbers are electrically and mechanically equivalent and will function identically in the circuit. However, traceability and quality documentation may require consistent part number usage within a single production lot.

Q: What compliance certifications apply to all variants? A: All three part numbers are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8542.39.0001. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all variants, indicating no special moisture handling requirements during storage or assembly.