TLV3402CDRG4 Equivalent & Substitute Parts

Part Overview

The TLV3402CDRG4 is a dual-channel general-purpose comparator from Texas Instruments, featuring CMOS open-drain output architecture. This 8-SOIC surface-mount device operates across a wide supply voltage range of 2.5V to 16V (single supply) or ±1.25V to ±8V (dual supply), making it suitable for precision analog signal comparison applications.

The TLV3402CDRG4 is currently discontinued at DiGi Electronics, with 886 units available as new original stock. Due to its discontinued status, identifying functionally equivalent substitute parts is essential for design continuity, long-term sourcing reliability, and production planning.

Substiute Parts

TLV3402CDRG4

Texas InstrumentsIn Stock: 952TLV3402CDRG4 Datasheet

Current PartRFQ

TLV3402CDR

Texas InstrumentsIn Stock: 1861TLV3402CDR Datasheet

MFR RecommendedRFQ

MAX992ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2186MAX992ESA+ Datasheet

MFR RecommendedRFQ

MAX992ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2274MAX992ESA+T Datasheet

MFR RecommendedRFQ

NCS3402DR2G

onsemiIn Stock: 9169NCS3402DR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLV3402CDRG4 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Package type: 8-SOIC surface mount (0.154", 3.90mm width)
• Output configuration: CMOS open-drain topology
• Number of comparator elements: 2 channels
• Supply voltage range: Must support at least 2.5V to 16V single supply or equivalent dual supply
• Input offset voltage: Maximum 3.6mV @ 15V
• Input bias current: Maximum 250pA @ 15V
• Output current capability: Minimum 10mA typical
• Quiescent current: Maximum 950nA
• Common-mode rejection ratio (CMRR): Minimum 88dB
• Power supply rejection ratio (PSRR): Minimum 105dB
• Propagation delay: Maximum 300µs
• Operating temperature range: Minimum 0°C to 70°C

Substitute parts must maintain electrical compatibility across these parameters to ensure functional equivalence in existing circuit designs without requiring PCB modifications or application circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

TLV3402CDR (Texas Instruments) This part is the direct Texas Instruments equivalent to the TLV3402CDRG4, sharing identical electrical specifications and operating parameters. However, it is classified as obsolete, indicating limited long-term availability. Selection of this part is appropriate only when existing inventory is available and immediate sourcing is required. Both parts maintain ROHS3 compliance and MSL Level 1 rating.

NCS3402DR2G (onsemi) This onsemi-manufactured comparator provides the closest electrical match to the TLV3402CDRG4, with identical input offset voltage (3.6mV @ 15V), input bias current (250pA @ 15V), output current (10mA typical), CMRR (88dB), and PSRR (105dB) specifications. The NCS3402DR2G features an extended operating temperature range (-40°C to 125°C) compared to the original part (0°C to 70°C), and slightly lower quiescent current (640nA vs. 950nA). This part is currently active with substantial inventory (9125 units), making it the preferred long-term substitute for applications requiring extended temperature performance or higher reliability margins.

MAX992ESA+ and MAX992ESA+T (Analog Devices Inc./Maxim Integrated) These Maxim Integrated comparators are functionally compatible but operate within a reduced supply voltage range (2.5V to 5.5V single supply, ±1.25V to ±2.75V dual supply) compared to the TLV3402CDRG4 (2.5V to 16V). The MAX992 series exhibits superior propagation delay performance (210ns vs. 300µs) and lower input bias current (1pA vs. 250pA), but reduced CMRR and PSRR specifications (80dB each vs. 88dB/105dB). These parts are suitable only for applications operating within the lower voltage range and where the reduced rejection ratios are acceptable. Both variants are active with high inventory availability. The MAX992ESA+T is supplied in tape and reel packaging, while MAX992ESA+ is supplied in tube packaging.

Compliance and Certification Status All substitute parts maintain ROHS3 compliance and MSL Level 1 (unlimited moisture sensitivity) ratings, ensuring compatibility with modern manufacturing and environmental standards. All parts carry EAR99 export classification and are REACH unaffected.

Frequently Asked Questions (FAQ)

Q: Can the NCS3402DR2G be used as a direct replacement for the TLV3402CDRG4 without circuit modifications?

A: Yes. The NCS3402DR2G maintains electrical equivalence across all critical parameters: supply voltage range (2.5V to 16V), input offset voltage (3.6mV @ 15V), input bias current (250pA @ 15V), output current (10mA typical), CMRR (88dB), and PSRR (105dB). The 8-SOIC package dimensions are identical. No PCB layout or application circuit changes are required. The extended operating temperature range (-40°C to 125°C) provides additional design margin compared to the original 0°C to 70°C specification.

Q: Why are the MAX992ESA+ and MAX992ESA+T not recommended as primary substitutes?

A: The MAX992 series operates within a restricted supply voltage range (2.5V to 5.5V single supply) compared to the TLV3402CDRG4 (2.5V to 16V). Applications requiring supply voltages above 5.5V cannot use these parts. Additionally, the MAX992 series exhibits lower CMRR and PSRR specifications (80dB each) compared to the TLV3402CDRG4 (88dB CMRR, 105dB PSRR), which may impact performance in noise-sensitive applications. These parts are suitable only for low-voltage applications where the reduced rejection ratios are acceptable.

Q: What is the difference between MAX992ESA+ and MAX992ESA+T packaging?

A: MAX992ESA+ is supplied in tube packaging, while MAX992ESA+T is supplied in tape and reel (TR) packaging. Both parts are electrically identical. Tape and reel packaging is typically preferred for automated assembly processes, while tube packaging is suitable for manual assembly or lower-volume applications. Selection depends on manufacturing process requirements and handling equipment availability.

Q: Is the TLV3402CDR a viable substitute despite its obsolete status?

A: The TLV3402CDR is electrically identical to the TLV3402CDRG4 and can serve as a temporary substitute if inventory is available. However, its obsolete classification indicates declining availability and potential future sourcing difficulties. Current inventory shows 1759 units available, but this supply is finite. For new designs or long-term production planning, the NCS3402DR2G is the recommended substitute due to its active product status and substantially higher inventory (9125 units).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (TLV3402CDR, MAX992ESA+, MAX992ESA+T, and NCS3402DR2G) maintain ROHS3 compliance and MSL Level 1 ratings, ensuring compatibility with modern manufacturing standards and environmental regulations.

Q: What is the primary advantage of the NCS3402DR2G over the original TLV3402CDRG4?

A: The NCS3402DR2G offers an extended operating temperature range (-40°C to 125°C) compared to the TLV3402CDRG4 (0°C to 70°C), providing broader application flexibility for industrial and automotive environments. Additionally, the NCS3402DR2G features slightly lower quiescent current (640nA vs. 950nA), reducing power consumption in battery-powered applications. Most importantly, it is currently active with high inventory availability (9125 units), ensuring long-term sourcing reliability.