TLV3402CDR Equivalent & Substitute Parts

Part Overview

The TLV3402CDR is a dual-channel general-purpose comparator manufactured by Texas Instruments, featuring CMOS open-drain output architecture in an 8-SOIC surface-mount package. This 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 analog signal comparison applications in industrial and consumer electronics.

The TLV3402CDR is classified as obsolete, which necessitates identification of active substitute components that maintain functional and electrical compatibility. Substitute parts must preserve the core electrical characteristics—dual-element configuration, open-drain output topology, input offset voltage, bias current specifications, and propagation delay performance—while offering improved availability and extended operating temperature ranges where applicable.

Key Parameters

Parameter	TLV3402CDR	Unit
Number of Elements	2	Channels
Output Type	CMOS, Open-Drain	—
Voltage - Supply, Single/Dual (±)	2.5V ~ 16V, ±1.25V ~ 8V	V
Voltage - Input Offset (Max)	3.6mV @ 15V	mV
Current - Input Bias (Max)	250pA @ 15V	pA
Current - Output (Typ)	10mA	mA
Current - Quiescent (Max)	950nA	nA
CMRR, PSRR (Typ)	88dB CMRR, 105dB PSRR	dB
Propagation Delay (Max)	300µs	µs
Operating Temperature	0°C ~ 70°C	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Product Status	Obsolete	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the TLV3402CDR are selected based on strict electrical and mechanical compatibility criteria. The primary substitution logic follows these parameters:

Critical Compatibility Parameters:

Dual-element (2-channel) comparator architecture
CMOS open-drain output topology
8-pin surface-mount package (8-SOIC or equivalent footprint)
Input offset voltage ≤ 3.6mV
Input bias current ≤ 250pA
Supply voltage range overlap with 2.5V ~ 16V single supply or ±1.25V ~ 8V dual supply
Quiescent current ≤ 950nA
ROHS3 compliance

Substitution Groups:

Group 1: Direct Texas Instruments Replacement (Recommended) TLV3402IDR is the active production equivalent from the same manufacturer, offering identical electrical specifications with extended operating temperature range (-40°C ~ 125°C) and improved availability in Tape & Reel packaging.

Group 2: Advanced Linear Devices Alternatives ALD2303ASAL and ALD2303SAL provide dual-channel comparator functionality in 8-SOIC packages with compatible output types (CMOS, NMOS, Open-Drain, TTL). These devices operate within a narrower supply voltage range (3V ~ 10V single, ±1.5V ~ 5V dual) and maintain the same operating temperature range as the original part (0°C ~ 70°C).

Group 3: Analog Devices/Maxim Integrated Rail-to-Rail Comparators MAX990ESA+, MAX990ESA+T, MAX992ESA+, and MAX992ESA+T are rail-to-rail comparators with enhanced propagation delay performance (210ns to 450ns) and lower input bias current (1pA). These devices operate at reduced supply voltage ranges (2.5V ~ 5.5V single, ±1.25V ~ 2.75V dual) and extended temperature ranges (-40°C ~ 85°C).

Group 4: Microchip Technology Alternatives MCP6567-E/MS, MCP6567-E/SN, and MCP6567T-E/MS offer superior propagation delay (80ns) and operate across 1.8V ~ 5.5V supply range with extended temperature capability (-40°C ~ 125°C). Package options include 8-MSOP and 8-SOIC variants.

Parameter Comparison

Part Number	Manufacturer	Output Type	Supply Voltage (Single)	Input Offset (Max)	Input Bias (Max)	Quiescent Current (Max)	Propagation Delay (Max)	Operating Temp	Package	Status
TLV3402CDR	Texas Instruments	CMOS, Open-Drain	2.5V ~ 16V	3.6mV @ 15V	250pA @ 15V	950nA	300µs	0°C ~ 70°C	8-SOIC	Obsolete
TLV3402IDR	Texas Instruments	CMOS, Open-Drain	2.7V ~ 16V	3.6mV @ 15V	250pA @ 15V	950nA	300µs	-40°C ~ 125°C	8-SOIC	Active
ALD2303ASAL	Advanced Linear Devices	CMOS, NMOS, Open-Drain, TTL	3V ~ 10V	1mV @ 5V	0.001µA @ 5V	40µA	—	0°C ~ 70°C	8-SOIC	Active
ALD2303SAL	Advanced Linear Devices	CMOS, NMOS, Open-Drain, TTL	3V ~ 10V	4mV @ 5V	0.001µA @ 5V	100µA	—	0°C ~ 70°C	8-SOIC	Active
MAX990ESA+	Analog Devices/Maxim	CMOS, Open-Drain, Rail-to-Rail, TTL	2.5V ~ 5.5V	5mV @ 5.5V	1pA @ 5.5V	24µA	450ns	-40°C ~ 85°C	8-SOIC	Active
MAX990ESA+T	Analog Devices/Maxim	CMOS, Open-Drain, Rail-to-Railway, TTL	2.5V ~ 5.5V	5mV @ 5.5V	1pA @ 5.5V	24µA	450ns	-40°C ~ 85°C	8-SOIC	Active
MAX992ESA+	Analog Devices/Maxim	CMOS, Open-Drain, Rail-to-Rail, TTL	2.5V ~ 5.5V	5mV @ 5.5V	1pA @ 5.5V	96µA	210ns	-40°C ~ 85°C	8-SOIC	Active
MAX992ESA+T	Analog Devices/Maxim	CMOS, Open-Drain, Rail-to-Rail, TTL	2.5V ~ 5.5V	5mV @ 5.5V	1pA @ 5.5V	96µA	210ns	-40°C ~ 85°C	8-SOIC	Active
MCP6567-E/MS	Microchip Technology	CMOS, Open-Drain	1.8V ~ 5.5V	10mV @ 5.5V	1pA @ 5.5V	130µA	80ns	-40°C ~ 125°C	8-MSOP	Active
MCP6567-E/SN	Microchip Technology	CMOS, Open-Drain	1.8V ~ 5.5V	10mV @ 5.5V	1pA @ 5.5V	130µA	80ns	-40°C ~ 125°C	8-SOIC	Active
MCP6567T-E/MS	Microchip Technology	CMOS, Open-Drain	1.8V ~ 5.5V	10mV @ 5.5V	1pA @ 5.5V	130µA	80ns	-40°C ~ 125°C	8-MSOP	Active

Engineering Selection Recommendations

Primary Recommendation: TLV3402IDR

The TLV3402IDR is the manufacturer-recommended direct replacement for the obsolete TLV3402CDR. Both devices share identical electrical specifications and 8-SOIC packaging, ensuring pin-for-pin compatibility. The TLV3402IDR offers extended operating temperature range (-40°C ~ 125°C versus 0°C ~ 70°C) and is actively produced with high inventory availability (27,578 units in stock). ROHS3 compliance and identical REACH/ECCN classifications ensure regulatory continuity. This part is suitable for applications requiring the original supply voltage range (2.7V ~ 16V single supply) and is the lowest-risk substitution path.

Secondary Recommendation: MCP6567-E/SN

The MCP6567-E/SN (Microchip Technology) provides an active alternative with identical 8-SOIC packaging and CMOS open-drain output. This device operates across 1.8V ~ 5.5V supply range and features superior propagation delay performance (80ns versus 300µs). Extended operating temperature range (-40°C ~ 125°C) and high inventory availability (100,400 units) support long-term supply chain stability. ROHS3 compliance is maintained. This part is suitable for applications operating within the 1.8V ~ 5.5V supply envelope where faster response time is beneficial.

Tertiary Recommendation: MAX992ESA+T

The MAX992ESA+T (Analog Devices/Maxim Integrated) offers rail-to-rail comparator functionality with the fastest propagation delay (210ns) among available substitutes. Tape & Reel packaging supports high-volume manufacturing. This device is suitable for applications requiring enhanced speed performance and operating within the 2.5V ~ 5.5V supply range. Extended temperature range (-40°C ~ 85°C) and ROHS3 compliance are provided.

Alternative for Constrained Supply Voltage: ALD2303ASAL or ALD2303SAL

Advanced Linear Devices comparators maintain the original operating temperature range (0°C ~ 70°C) and provide multi-output-type flexibility (CMOS, NMOS, Open-Drain, TTL). These devices are suitable for applications operating within the narrower 3V ~ 10V supply range. Lower input offset voltage (1mV for ALD2303ASAL) may benefit precision comparison applications.

Frequently Asked Questions (FAQ)

Q: Can TLV3402IDR directly replace TLV3402CDR without PCB modifications?

A: Yes. The TLV3402IDR is a pin-for-pin replacement with identical 8-SOIC package dimensions and pinout. No PCB layout changes are required. The primary difference is extended operating temperature range (-40°C ~ 125°C) and slightly higher minimum supply voltage (2.7V versus 2.5V), which is compatible with most applications.

Q: What is the key difference between TLV3402IDR and MCP6567-E/SN?

A: Both devices provide 8-SOIC packaging and CMOS open-drain output. The primary differences are: (1) TLV3402IDR supports higher supply voltage (up to 16V versus 5.5V for MCP6567), making it suitable for higher-voltage applications; (2) MCP6567-E/SN offers faster propagation delay (80ns versus 300µs), beneficial for time-critical applications; (3) MCP6567-E/SN operates at lower minimum supply voltage (1.8V versus 2.7V).

Q: Are MAX990ESA+ and MAX992ESA+ interchangeable?

A: Both devices share identical supply voltage range (2.5V ~ 5.5V), operating temperature (-40°C ~ 85°C), and 8-SOIC packaging. The primary difference is propagation delay: MAX992ESA+ is faster (210ns versus 450ns for MAX990ESA+) and has higher quiescent current (96µA versus 24µA). Selection depends on speed requirements and power budget constraints.

Q: What packaging options are available for MCP6567 comparators?

A: Microchip offers MCP6567 in two package variants: 8-SOIC (MCP6567-E/SN) and 8-MSOP (MCP6567-E/MS, MCP6567T-E/MS). The 8-SOIC variant is footprint-compatible with TLV3402CDR. The 8-MSOP variant is a smaller package (0.118" width versus 0.154" for SOIC) and requires different PCB layout.

Q: Can I use ALD2303 comparators in applications requiring supply voltages above 10V?

A: No. ALD2303ASAL and ALD2303SAL are rated for maximum 10V single supply (±5V dual supply). Applications requiring higher supply voltages (up to 16V) must use TLV3402IDR or equivalent high-voltage comparators.

Q: Which substitute part offers the lowest quiescent current?

A: MAX990ESA+ and MAX990ESA+T offer the lowest quiescent current at 24µA maximum. For applications with strict power consumption constraints operating within 2.5V ~ 5.5V supply range, these devices are optimal. TLV3402CDR/IDR quiescent current is 950nA, which is lower than most substitutes but requires higher supply voltage capability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility with the original TLV3402CDR.

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