TLV3402IDRG4 Equivalent & Substitute Parts

Part Overview

The TLV3402IDRG4 is a dual-channel general-purpose CMOS comparator with open-drain output in 8-SOIC surface-mount packaging, manufactured by Texas Instruments. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The TLV3402 series operates across extended supply voltage ranges (2.7V to 16V single supply, ±1.35V to ±8V dual supply) and is suitable for precision analog signal comparison applications requiring low input offset voltage and low input bias current.

Key Parameters

Parameter	Value	Condition
Number of Elements	2	Dual comparators per package
Output Type	CMOS, Open-Drain	Standard configuration
Voltage - Supply, Single/Dual (±)	2.7V ~ 16V, ±1.35V ~ 8V	Operating range
Voltage - Input Offset (Max)	3.6mV	@ 15V
Current - Input Bias (Max)	250pA	@ 15V
Current - Output (Typ)	10mA	Standard condition
Current - Quiescent (Max)	950nA	Supply current
CMRR, PSRR (Typ)	88dB CMRR, 105dB PSRR	Rejection ratios
Propagation Delay (Max)	300µs	Response time
Operating Temperature	-40°C ~ 125°C	Industrial range
Package / Case	8-SOIC (0.154", 3.90mm Width)	Surface mount
RoHS Status	ROHS3 Compliant	Environmental compliance
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Storage condition

Substitute Part Grouping Explanation

Substitute parts for the TLV3402IDRG4 are grouped into two categories based on substitution criteria:

Primary Equivalent (MFR Recommended): TLV3402IDR maintains identical electrical specifications and functional characteristics as the main part. The only difference is packaging format (Tape & Reel vs. individual packaging) and active product status, making it a direct functional replacement.

Parametric Equivalents: Parts including ALD2303SAL, ALD2303ASAL, MAX990ESA+, MAX990ESA+T, MAX992ESA+, MAX992ESA+T, and NCS3402DR2G share the same 8-SOIC package and dual-comparator configuration. These parts are substitutable when the following criteria are met:

Package compatibility: All use 8-SOIC (0.154", 3.90mm Width) surface-mount format
Element count: All contain 2 comparators per package
Output type: All feature open-drain output capability
Supply voltage overlap: Operating ranges must encompass the application's required voltage
Temperature range: Operating temperature must cover the application's thermal requirements
Compliance: All are ROHS3 compliant with MSL 1 rating

Key differentiators among substitutes include supply voltage range, input offset voltage, propagation delay, and quiescent current specifications. Selection depends on specific application requirements within these parameter boundaries.

Parameter Comparison

Part Number	Manufacturer	Product Status	Supply Voltage Range	Input Offset (Max)	Input Bias (Max)	Quiescent Current (Max)	Propagation Delay (Max)	Operating Temp	Packaging
TLV3402IDRG4	Texas Instruments	Obsolete	2.7V ~ 16V, ±1.35V ~ 8V	3.6mV @ 15V	250pA @ 15V	950nA	300µs	-40°C ~ 125°C	8-SOIC
TLV3402IDR	Texas Instruments	Active	2.7V ~ 16V, ±1.35V ~ 8V	3.6mV @ 15V	250pA @ 15V	950nA	300µs	-40°C ~ 125°C	8-SOIC (TR)
TLV3401IDR	Texas Instruments	Last Time Buy	2.7V ~ 16V, ±1.35V ~ 8V	3.6mV @ 15V	250pA @ 15V	950nA	300µs	-40°C ~ 125°C	8-SOIC (TR)
ALD2303SAL	Advanced Linear Devices Inc.	Active	3V ~ 10V, ±1.5V ~ 5V	4mV @ 5V	0.001µA @ 5V	100µA	Not specified	0°C ~ 70°C	8-SOIC (Tube)
ALD2303ASAL	Advanced Linear Devices Inc.	Active	3V ~ 10V, ±1.5V ~ 5V	1mV @ 5V	0.001µA @ 5V	40µA	Not specified	0°C ~ 70°C	8-SOIC (Tube)
MAX990ESA+	Analog Devices Inc./Maxim Integrated	Active	2.5V ~ 5.5V, ±1.25V ~ 2.75V	5mV @ 5.5V	1pA @ 5.5V	24µA	450ns	-40°C ~ 85°C	8-SOIC (Tube)
MAX990ESA+T	Analog Devices Inc./Maxim Integrated	Active	2.5V ~ 5.5V, ±1.25V ~ 2.75V	5mV @ 5.5V	1pA @ 5.5V	24µA	450ns	-40°C ~ 85°C	8-SOIC (TR)
MAX992ESA+	Analog Devices Inc./Maxim Integrated	Active	2.5V ~ 5.5V, ±1.25V ~ 2.75V	5mV @ 5.5V	1pA @ 5.5V	96µA	210ns	-40°C ~ 85°C	8-SOIC (Tube)
MAX992ESA+T	Analog Devices Inc./Maxim Integrated	Active	2.5V ~ 5.5V, ±1.25V ~ 2.75V	5mV @ 5.5V	1pA @ 5.5V	96µA	210ns	-40°C ~ 85°C	8-SOIC (TR)
NCS3402DR2G	onsemi	Active	2.5V ~ 16V	3.6mV @ 15V	250pA @ 15V	640nA	220µs (Typ)	-40°C ~ 125°C	8-SOIC (TR)

Engineering Selection Recommendations

Direct Replacement (Recommended First Choice): TLV3402IDR is the primary equivalent, offering identical electrical performance to the obsolete TLV3402IDRG4 with active product status and full availability. This part is sourced from the same manufacturer and maintains all critical specifications. The only distinction is packaging format (Tape & Reel), which is standard for active production parts.

Extended Supply Voltage Applications: NCS3402DR2G from onsemi provides comparable electrical characteristics with extended upper supply voltage capability (2.5V ~ 16V) and lower quiescent current (640nA vs. 950nA). This part is suitable for applications requiring the full voltage range of the original TLV3402IDRG4 and is actively produced.

Restricted Supply Voltage Applications (2.5V ~ 5.5V): MAX992ESA+T and MAX992ESA+ offer faster propagation delay (210ns vs. 300µs) and lower input bias current (1pA vs. 250pA) when operating within the 2.5V to 5.5V supply range. These parts are suitable for low-voltage, high-speed applications but cannot replace the TLV3402IDRG4 in extended voltage designs.

Limited Temperature Range Applications (0°C ~ 70°C): ALD2303SAL and ALD2303ASAL from Advanced Linear Devices are suitable only for commercial temperature range applications. These parts are not appropriate for industrial or extended temperature designs requiring -40°C to 125°C operation.

Obsolete Part Avoidance: TLV3401IDR (single comparator) and all ALD2303 variants are not recommended as primary replacements due to product status limitations (Last Time Buy or restricted temperature range). These should be considered only when specific design constraints mandate their use.

All recommended substitutes maintain ROHS3 compliance and MSL 1 rating, ensuring environmental and moisture sensitivity compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can TLV3402IDR directly replace TLV3402IDRG4 in existing designs?

A: Yes. TLV3402IDR is electrically and functionally identical to TLV3402IDRG4. The difference is packaging format (Tape & Reel vs. tube/individual packaging) and product status (Active vs. Obsolete). No design changes are required.

Q: What is the key difference between TLV3402IDR and NCS3402DR2G?

A: Both parts share identical electrical specifications and operating temperature range (-40°C ~ 125°C). NCS3402DR2G has slightly lower quiescent current (640nA vs. 950nA) and faster typical propagation delay (220µs vs. 300µs). Both are suitable for extended voltage applications up to 16V.

Q: Can MAX992ESA+T replace TLV3402IDRG4 in all applications?

A: No. MAX992ESA+T operates only within 2.5V to 5.5V supply range, whereas TLV3402IDRG4 supports 2.7V to 16V. Use MAX992ESA+T only in applications confirmed to operate within the 2.5V to 5.5V window. The MAX992 series offers faster propagation delay (210ns) suitable for high-speed comparisons within this voltage constraint.

Q: Are ALD2303SAL and ALD2303ASAL suitable for industrial temperature applications?

A: No. Both ALD2303 variants operate only within 0°C to 70°C commercial temperature range. The TLV3402IDRG4 and recommended substitutes (TLV3402IDR, NCS3402DR2G) support -40°C to 125°C industrial range. Do not use ALD2303 parts for designs requiring extended temperature operation.

Q: What is the significance of packaging format (Tube vs. Tape & Reel)?

A: Packaging format affects procurement and assembly processes but not electrical function. Tube packaging is typical for obsolete or low-volume parts. Tape & Reel (TR) is standard for active production parts and automated assembly. Both formats use identical 8-SOIC (0.154", 3.90mm Width) surface-mount packages with identical pinouts and electrical characteristics.

Q: Which substitute offers the lowest quiescent current?

A: NCS3402DR2G has the lowest quiescent current at 640nA maximum, compared to 950nA for TLV3402IDRG4. For applications prioritizing power consumption, NCS3402DR2G is the optimal choice while maintaining full voltage range compatibility.

Q: Can I use TLV3401IDR as a substitute?

A: TLV3401IDR is not recommended as a primary substitute. It contains only one comparator element versus two in the TLV3402IDRG4, and its product status is Last Time Buy. Use TLV3401IDR only if your design requires a single comparator and existing inventory is available.

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