TLC3704IDR Equivalent & Substitute Parts

Part Overview

The TLC3704IDR is a general-purpose CMOS comparator manufactured by Texas Instruments, featuring four independent comparator elements in a 14-SOIC surface-mount package. This device operates across a wide supply voltage range of 3V to 16V and is designed for applications requiring low input offset voltage and low input bias current. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are necessary when the TLC3704IDR becomes unavailable, when alternative packaging formats are required for specific board layouts, or when design requirements call for different output configurations or performance characteristics within compatible electrical parameters.

Key Parameters

Parameter	TLC3704IDR
Manufacturer	Texas Instruments
Number of Elements	4
Output Type	CMOS, Push-Pull, TTL
Voltage - Supply, Single/Dual (±)	3V ~ 16V
Voltage - Input Offset (Max)	5mV @ 10V
Current - Input Bias (Max)	5pA @ 5V
Current - Output (Typ)	20mA
Current - Quiescent (Max)	125µA
CMRR (Typ)	84dB
Propagation Delay (Max)	4.5µs
Operating Temperature	-40°C ~ 85°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the TLC3704IDR is determined by the following critical parameters:

Primary Compatibility Criteria:

Number of comparator elements: 4 (required)
Package type: 14-SOIC surface-mount format (required for PCB compatibility)
Supply voltage range: Must encompass or overlap with 3V ~ 16V
Input offset voltage: Maximum 5mV @ 10V
Input bias current: Maximum 5pA @ 5V
Output current capability: Minimum 20mA typical
Operating temperature range: Must support -40°C ~ 85°C minimum
Compliance: ROHS3 and REACH requirements

Substitute Categories:

Category A - Direct Pin-Compatible Substitutes (14-SOIC Package): TS339IDT and TS3704IDT maintain identical 14-SOIC packaging and pinout compatibility. Both support the full supply voltage range and meet input offset and bias current specifications. TS3704IDT provides Push-Pull output matching the TLC3704IDR output configuration.

Category B - Functional Equivalent with Package Variation: TS339CDT operates in 14-SO packaging (equivalent footprint to 14-SOIC) with identical electrical performance parameters but features Open-Drain output configuration, requiring external pull-up resistors.

Category C - Alternative Package Format: MAX964EEE+ provides four comparator elements with compatible electrical specifications but uses 16-QSOP packaging, requiring PCB layout redesign. This substitute is suitable only when package footprint change is acceptable.

Parameter Comparison

Parameter	TLC3704IDR	TS3704IDT	TS339IDT	TS339CDT	MAX964EEE+
Manufacturer	Texas Instruments	STMicroelectronics	STMicroelectronics	STMicroelectronics	Analog Devices Inc./Maxim Integrated
Number of Elements	4	4	4	4	4
Output Type	CMOS, Push-Pull, TTL	CMOS, Push-Pull	CMOS, Open-Drain	CMOS, Open-Drain	CMOS, TTL
Voltage - Supply, Single/Dual (±)	3V ~ 16V	2.7V ~ 16V, ±1.35V ~ 8V	2.7V ~ 16V, ±1.35V ~ 8V	2.7V ~ 16V, ±1.35V ~ 8V	2.7V ~ 5.5V
Voltage - Input Offset (Max)	5mV @ 10V	5mV @ 10V	5mV @ 10V	5mV @ 10V	1.5mV @ 5V
Current - Input Bias (Max)	5pA @ 5V	1pA @ 5V	1pA @ 5V	1pA @ 5V	15µA @ 5V
Current - Output (Typ)	20mA	20mA	20mA	20mA	—
Current - Quiescent (Max)	125µA	25µA	25µA	25µA	9mA
CMRR (Typ)	84dB	80dB	75dB	75dB	80dB
Operating Temperature	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	0°C ~ 70°C	-40°C ~ 85°C
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	16-SSOP
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

TS3704IDT is the primary substitute for direct replacement. This STMicroelectronics device maintains identical 14-SOIC packaging and pinout, supports the full supply voltage range, and provides Push-Pull output configuration matching the TLC3704IDR. The part exceeds performance specifications with lower input bias current (1pA vs 5pA) and lower quiescent current (25µA vs 125µA). Extended operating temperature range (-40°C ~ 125°C) provides additional margin. ROHS3 compliance and unlimited moisture sensitivity rating match the original part.

TS339IDT serves as an alternative pin-compatible substitute with identical electrical performance to TS3704IDT but with Open-Drain output configuration. This requires external pull-up resistor implementation in the circuit design. Selection of this part is appropriate when Open-Drain output topology is compatible with the application requirements.

TS339CDT is functionally equivalent to TS339IDT with identical electrical specifications and Open-Drain output but operates within a reduced temperature range (0°C ~ 70°C). This part is suitable only for applications not requiring the full -40°C ~ 85°C operating range of the original device.

MAX964EEE+ provides four comparator elements with superior input offset voltage specification (1.5mV vs 5mV) but operates within a restricted supply voltage range (2.7V ~ 5.5V), limiting applicability to low-voltage designs. The 16-QSOP package requires PCB layout redesign and is not pin-compatible with the TLC3704IDR. Selection of this part is appropriate only when the application operates exclusively within the 2.7V ~ 5.5V supply range and PCB redesign is acceptable.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility with the original specification.

Frequently Asked Questions (FAQ)

Q: Can TS3704IDT be used as a direct replacement for TLC3704IDR without circuit modification?

A: Yes. TS3704IDT maintains identical 14-SOIC pinout and package dimensions, supports the full 3V ~ 16V supply voltage range, and provides Push-Pull output configuration. No circuit modifications are required for direct substitution.

Q: What is the key difference between TS3704IDT and TS339IDT?

A: Both parts are pin-compatible with identical electrical performance. The primary difference is output configuration: TS3704IDT provides Push-Pull output (matching TLC3704IDR), while TS339IDT provides Open-Drain output. Open-Drain output requires external pull-up resistors to establish output voltage levels.

Q: Why does TS339CDT have a reduced operating temperature range?

A: TS339CDT is specified for 0°C ~ 70°C operation, which is narrower than the TLC3704IDR specification of -40°C ~ 85°C. This part is unsuitable for applications requiring extended temperature operation, particularly in industrial or automotive environments requiring -40°C minimum operation.

Q: Can MAX964EEE+ replace TLC3704IDR in existing designs?

A: MAX964EEE+ cannot be used as a direct replacement due to different packaging (16-QSOP vs 14-SOIC) and restricted supply voltage range (2.7V ~ 5.5V vs 3V ~ 16V). PCB redesign is required, and the part is suitable only for applications operating within the 2.7V ~ 5.5V supply range.

Q: What are the compliance and regulatory considerations for these substitutes?

A: All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the TLC3704IDR. Moisture sensitivity level is 1 (Unlimited) for all parts, indicating no special handling requirements during storage or assembly.

Q: Which substitute offers the best performance improvement over TLC3704IDR?

A: TS3704IDT and TS339IDT both provide superior performance with lower input bias current (1pA vs 5pA), lower quiescent current (25µA vs 125µA), and extended operating temperature range (-40°C ~ 125°C). These improvements reduce power consumption and provide additional thermal margin without circuit modification.

Q: Are there inventory considerations when selecting a substitute?

A: Current inventory levels are: TLC3704IDR (4,642 pcs), TS3704IDT (20,200 pcs), TS339IDT (15,753 pcs), TS339CDT (5,465 pcs), and MAX964EEE+ (3,400 pcs). TS3704IDT offers the highest availability for immediate procurement.

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