TLV5638QDREP Equivalent & Substitute Parts

Part Overview

The TLV5638QDREP is a 12-bit digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for data acquisition applications requiring dual voltage output channels. The device operates with external or internal reference sources and supports SPI data interface communication. Currently in active product status with 7920 units in stock, the TLV5638QDREP is available in Cut Tape and Digi-Reel packaging formats. Identifying equivalent and substitute parts becomes necessary when addressing supply chain constraints, packaging format requirements, or inventory optimization while maintaining identical electrical and mechanical performance specifications.

Substiute Parts

TLV5638QDREP

Texas InstrumentsIn Stock: 7938TLV5638QDREP Datasheet

Current PartRFQ

TLV5638QDR

Texas InstrumentsIn Stock: 7703TLV5638QDR Datasheet

Parametric EquivalentRFQ

TLV5638QDRG4

Texas InstrumentsIn Stock: 899TLV5638QDRG4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLV5638QDREP are determined by equivalence across all critical electrical and mechanical parameters. The substitution logic is based on matching the following specifications: 12-bit resolution, dual D/A converter configuration, 7µs settling time, buffered voltage output, SPI interface, dual supply voltage ranges (2.7V–3.3V and 5V), identical INL/DNL performance (±1.7 and ±0.4 LSB), String DAC architecture, -40°C to 125°C operating temperature range, and 8-SOIC surface mount package format.

Substitute parts identified within this category maintain identical electrical performance and package dimensions. Variations in packaging format (Cut Tape versus Tape & Reel) and product status do not affect functional equivalence but may influence availability and procurement timelines.

Parameter Comparison

Engineering Selection Recommendations

All three parts—TLV5638QDREP, TLV5638QDR, and TLV5638QDRG4—are parametrically equivalent and suitable for direct substitution based on identical electrical specifications and package format. Selection should prioritize product status and availability:

TLV5638QDREP and TLV5638QDR are both active products with substantial inventory levels, making them the preferred choices for new designs and ongoing production. Both support Cut Tape and Digi-Reel packaging options, providing flexibility for different procurement and assembly workflows.

TLV5638QDRG4, while electrically identical, carries a discontinued status at DiGi Electronics and is available only in Tape & Reel format with limited inventory (874 units). This part should be considered only when existing stock requirements or specific packaging constraints necessitate its use.

All parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 rating, confirming suitability for standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can TLV5638QDR be used as a direct replacement for TLV5638QDREP?

A: Yes. Both parts are parametrically equivalent across all electrical and mechanical specifications. The primary difference is packaging format availability. TLV5638QDR supports Cut Tape and Digi-Reel options, identical to TLV5638QDREP.

Q: What is the difference between TLV5638QDREP and TLV5638QDRG4?

A: Electrical performance is identical. The key differences are packaging format (TLV5638QDRG4 is Tape & Reel only) and product status (TLV5638QDRG4 is discontinued at DiGi Electronics). Inventory for TLV5638QDRG4 is significantly lower at 874 units compared to 7920 for TLV5638QDREP.

Q: Are there any pin configuration differences between these parts?

A: No. All three parts use the 8-SOIC package with identical pin assignments and mechanical dimensions (0.154" width, 3.90mm).

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All three parts are pin-compatible and footprint-compatible for 8-SOIC surface mount applications. No PCB redesign is required for substitution.

Q: What supply voltage options are supported?

A: All three parts support dual supply voltage ranges: 2.7V to 3.3V and 5V for both analog and digital supplies. This provides flexibility for single and dual supply circuit configurations.

Q: Are there any compliance or environmental restrictions?

A: All three parts are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is rated at MSL 1 (unlimited), indicating no special storage or handling requirements beyond standard component practices.

Q: Which part should be selected for new production designs?

A: TLV5638QDREP or TLV5638QDR are recommended for new designs due to active product status and robust inventory levels. Selection between these two depends on packaging format requirements (Cut Tape versus Digi-Reel).