TLV3402CDG4 Equivalent & Substitute Parts

Part Overview

The TLV3402CDG4 is a dual-channel general-purpose CMOS comparator with open-drain output, manufactured by Texas Instruments in 8-SOIC surface-mount packaging. This part operates across a wide supply voltage range (2.5V to 16V single supply, ±1.25V to ±8V dual supply) and is designed for precision voltage comparison applications requiring low input offset voltage and low input bias current.

The TLV3402CDG4 carries an Obsolete product status. Equivalent and substitute parts are necessary to ensure design continuity, maintain supply chain reliability, and access active production alternatives with comparable or enhanced electrical performance.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Part Number	TLV3402CDG4
Category	Linear - Comparator
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Number of Elements	2
Output Type	CMOS, Open-Drain
Supply Voltage Range	2.5V ~ 16V (single), ±1.25V ~ ±8V (dual)
Input Offset Voltage (Max)	3.6mV @ 15V
Input Bias Current (Max)	250pA @ 15V
Output Current (Typ)	10mA
Quiescent Current (Max)	950nA
CMRR / PSRR (Typ)	88dB CMRR, 105dB PSRR
Propagation Delay (Max)	300µs
Operating Temperature	0°C ~ 70°C
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TLV3402CDG4 are categorized based on electrical and mechanical compatibility within the following criteria:

Primary Substitution Criteria:

Package compatibility: 8-SOIC form factor (0.154", 3.90mm Width)
Surface-mount technology
Dual-channel comparator configuration (2 elements)
Open-drain output capability
Supply voltage overlap with original specification
Input offset voltage and input bias current within acceptable ranges
ROHS3 compliance and MSL rating compatibility

Substitution Categories:

Direct Functional Equivalents (Same Manufacturer - Texas Instruments TLV3402 Series): Parts maintaining identical electrical specifications and operating temperature range as the original TLV3402CDG4, differing only in packaging format or product status.

Active Production Alternatives (Texas Instruments TLV3402IDR): Enhanced variant with extended operating temperature range (-40°C to 125°C) and improved supply voltage floor (2.7V minimum), providing superior performance margin while maintaining core electrical characteristics.

Cross-Manufacturer Substitutes (Analog Devices/Maxim MAX990/MAX992 Series): Parts with comparable dual-channel architecture, open-drain output, and 8-SOIC packaging. These devices operate within narrower supply voltage ranges (2.5V to 5.5V) but offer faster propagation delay and lower quiescent current in their respective operating windows.

Parametric Equivalents (Advanced Linear Devices ALD2303 Series): Dual-channel comparators with extended output type options (CMOS, NMOS, Open-Drain, TTL) and different electrical performance characteristics, suitable for applications where the original supply voltage range is not required.

Parameter Comparison

Parameter	TLV3402CDG4	TLV3402IDR	TLV3402CD	MAX992ESA+T	MAX990ESA+T	ALD2303ASAL	ALD2303SAL
Manufacturer	TI	TI	TI	ADI/Maxim	ADI/Maxim	ALD	ALD
Package	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Number of Elements	2	2	2	2	2	2	2
Output Type	CMOS, Open-Drain	CMOS, Open-Drain	CMOS, Open-Drain	CMOS, Open-Drain, Rail-to-Rail, TTL	CMOS, Open-Drain, Rail-to-Rail, TTL	CMOS, NMOS, Open-Drain, TTL	CMOS, NMOS, Open-Drain, TTL
Supply Voltage (Single)	2.5V ~ 16V	2.7V ~ 16V	2.5V ~ 16V	2.5V ~ 5.5V	2.5V ~ 5.5V	3V ~ 10V	3V ~ 10V
Supply Voltage (Dual)	±1.25V ~ ±8V	±1.35V ~ ±8V	±1.25V ~ ±8V	±1.25V ~ ±2.75V	±1.25V ~ ±2.75V	±1.5V ~ ±5V	±1.5V ~ ±5V
Input Offset Voltage (Max)	3.6mV @ 15V	3.6mV @ 15V	3.6mV @ 15V	5mV @ 5.5V	5mV @ 5.5V	1mV @ 5V	4mV @ 5V
Input Bias Current (Max)	250pA @ 15V	250pA @ 15V	250pA @ 15V	1pA @ 5.5V	1pA @ 5.5V	0.001µA @ 5V	0.001µA @ 5V
Output Current (Typ)	10mA	10mA	10mA	—	—	60mA	60mA
Quiescent Current (Max)	950nA	950nA	950nA	96µA	24µA	40µA	100µA
CMRR (Typ)	88dB	88dB	88dB	80dB	80dB	—	—
PSRR (Typ)	105dB	105dB	105dB	80dB	80dB	—	—
Propagation Delay (Max)	300µs	300µs	300µs	210ns	450ns	—	—
Operating Temperature	0°C ~ 70°C	-40°C ~ 125°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C
Product Status	Obsolete	Active	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Choice):

TLV3402IDR is the manufacturer-recommended substitute. This part maintains identical electrical specifications to the TLV3402CDG4 while offering Active product status, extended operating temperature range (-40°C to 125°C), and improved supply voltage floor (2.7V minimum). The TLV3402IDR is available in Tape & Reel packaging format, suitable for high-volume production environments. ROHS3 compliance and MSL rating are maintained.

For Packaging Format Alternatives:

TLV3402CD provides functional equivalence with identical electrical performance and operating temperature range as the original TLV3402CDG4, differentiated only by Tube packaging format. Product status is Obsolete. This option is suitable when Tape & Reel format is not required and existing inventory must be managed.

For Extended Temperature Range Applications:

MAX992ESA+T and MAX990ESA+T (Analog Devices/Maxim) offer extended operating temperature range (-40°C to 85°C) with faster propagation delay performance (210ns and 450ns respectively). These parts operate within narrower supply voltage ranges (2.5V to 5.5V single supply) and are suitable for applications where the original wide supply voltage range is not required. Both maintain ROHS3 compliance and MSL rating 1.

For High Output Current Applications:

ALD2303ASAL and ALD2303SAL (Advanced Linear Devices) provide higher typical output current (60mA) compared to the original specification (10mA). These parts support extended output type options (CMOS, NMOS, Open-Drain, TTL) and operate within supply voltage ranges of 3V to 10V (single) or ±1.5V to ±5V (dual). Product status is Active for both variants. Selection between these two depends on quiescent current requirements: ALD2303ASAL specifies 40µA maximum, while ALD2303SAL specifies 100µA maximum.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and MSL rating 1 (Unlimited), ensuring compatibility with environmental and moisture sensitivity requirements. REACH status is Unaffected for all listed alternatives.

Frequently Asked Questions (FAQ)

Q: Can TLV3402IDR be used as a direct drop-in replacement for TLV3402CDG4?

A: Yes. TLV3402IDR maintains identical electrical specifications (input offset voltage, input bias current, output current, quiescent current, CMRR, PSRR, and propagation delay) and package form factor (8-SOIC). The primary differences are Active product status, extended operating temperature range (-40°C to 125°C versus 0°C to 70°C), and improved supply voltage floor (2.7V minimum versus 2.5V minimum). These differences represent performance enhancements suitable for direct substitution.

Q: What is the key limitation when substituting MAX992ESA+T or MAX990ESA+T?

A: The Analog Devices/Maxim parts operate within a narrower supply voltage range (2.5V to 5.5V single supply, ±1.25V to ±2.75V dual supply) compared to the original TLV3402CDG4 specification (2.5V to 16V single supply, ±1.25V to ±8V dual supply). These substitutes are suitable only for applications operating within the 2.5V to 5.5V range. Advantages include faster propagation delay (210ns for MAX992ESA+T) and lower quiescent current (24µA for MAX990ESA+T).

Q: Are ALD2303ASAL and ALD2303SAL suitable for applications requiring the original wide supply voltage range?

A: No. The ALD2303 series operates within supply voltage ranges of 3V to 10V (single) or ±1.5V to ±5V (dual), which is narrower than the original TLV3402CDG4 specification. These parts are suitable only for applications operating within the 3V to 10V range. The primary advantage is higher output current capability (60mA typical versus 10mA for the original).

Q: What packaging formats are available for TLV3402 series substitutes?

A: TLV3402IDR is supplied in Tape & Reel (TR) format, suitable for automated assembly and high-volume production. TLV3402CD is supplied in Tube format, suitable for manual handling and lower-volume applications. Both maintain the 8-SOIC package form factor and are surface-mount compatible.

Q: Do all substitute parts maintain ROHS3 compliance?

A: Yes. All listed substitute parts (TLV3402IDR, TLV3402CD, MAX992ESA+T, MAX990ESA+T, MAX992ESA+, MAX990ESA+, ALD2303ASAL, and ALD2303SAL) are ROHS3 compliant with MSL rating 1 (Unlimited), matching the environmental and moisture sensitivity requirements of the original TLV3402CDG4.

Q: Which substitute offers the best overall compatibility for general-purpose comparator applications?

A: TLV3402IDR is the recommended choice for general-purpose applications. It provides identical electrical performance to the original part, Active product status ensuring long-term availability, extended operating temperature range for broader application support, and improved supply voltage floor. Tape & Reel packaging supports modern production workflows.

Q: Can multiple substitute parts be used interchangeably within a single design?

A: No. Each substitute part category operates within different electrical and supply voltage specifications. Design validation is required for each specific substitute part selected. Interchangeability is limited to parts within the same manufacturer series (TLV3402IDR and TLV3402CD) where electrical specifications are identical.

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