TLV3701QDBVREP Equivalent & Substitute Parts

Part Overview

The TLV3701QDBVREP is a general-purpose CMOS comparator manufactured by Texas Instruments, housed in a SOT-23-5 surface mount package. This single-element comparator features push-pull, rail-to-rail output capability with supply voltage range of 2.7V to 16V (or ±1.35V to ±8V dual supply). The device is Active status and ROHS3 compliant, making it suitable for industrial and commercial applications requiring low-power comparison functions.

Equivalent and substitute parts are identified when design requirements necessitate alternative packaging formats, different supply voltage ranges, enhanced performance characteristics, or specific automotive qualifications while maintaining functional compatibility within the application circuit.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Part Number	TLV3701QDBVREP
Category	Linear - Comparator
Type	General Purpose
Number of Elements	1
Output Type	CMOS, Push-Pull, Rail-to-Rail
Supply Voltage (Single/Dual)	2.7V ~ 16V, ±1.35V ~ 8V
Input Offset Voltage (Max)	5mV @ 5V
Input Bias Current (Max)	250pA @ 5V
Output Current (Typ)	10mA
Quiescent Current (Max)	1.2µA
CMRR / PSRR (Typ)	88dB CMRR, 105dB PSRR
Propagation Delay (Max)	240µs
Operating Temperature	-40°C ~ 125°C
Package / Case	SC-74A, SOT-753 (SOT-23-5)
Mounting Type	Surface Mount
Product Status	Active
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TLV3701QDBVREP are classified into three categories based on substitution criteria:

Parametric Equivalents (Same Base Device, Different Packaging/Qualification): Parts TLV3701QDBVRG4Q1 and TLV3701QDBVRQ1 maintain identical electrical specifications to the main part but differ in packaging format (Cut Tape & Digi-Reel versus Tape & Reel) and include automotive-grade qualification (AEC-Q100). These are direct substitutes when packaging availability or automotive compliance is required.

Manufacturer Recommended Alternatives (Cross-Manufacturer Substitutes): Parts from Analog Devices Inc./Maxim Integrated (MAX9140AAUK+T, MAX9141ESA+, MAX941CPA+, MAX941EUA+, MAX941EUA+T) and Microchip Technology (MCP6561T-E/LT, MCP6561T-E/OT, MCP65R41T-1202E/CHY) provide functional substitution with trade-offs in electrical performance and package options.

Key Substitution Parameters:

Supply voltage compatibility (minimum 2.7V single supply or equivalent dual supply)
Output type (CMOS, Push-Pull capability required)
Package compatibility (SOT-23-5 preferred for direct PCB replacement)
Operating temperature range (-40°C to 125°C minimum)
Propagation delay performance requirements
Quiescent current constraints

Parameter Comparison

Parameter	TLV3701QDBVREP	TLV3701QDBVRG4Q1	TLV3701QDBVRQ1	MAX9140AAUK+T	MAX9141ESA+	MAX941EUA+T	MCP6561T-E/OT	MCP65R41T-1202E/CHY
Manufacturer	TI	TI	TI	Maxim	Maxim	Maxim	Microchip	Microchip
Supply Voltage	2.7V~16V	2.7V~16V	2.7V~16V	2.7V~5.5V	2.7V~5.5V	2.7V~5.5V	1.8V~5.5V	1.8V~5.5V
Input Offset (Max)	5mV @ 5V	5mV @ 5V	5mV @ 5V	6mV @ 5V	2mV @ 5V	3mV @ 5.5V	10mV @ 5.5V	10mV @ 5.5V
Input Bias Current (Max)	250pA @ 5V	250pA @ 5V	250pA @ 5V	0.35µA @ 5V	0.32µA @ 5V	0.15µA @ 5.5V	1pA @ 5.5V	1pA @ 5.5V
Output Current (Typ)	10mA	10mA	10mA	—	—	—	50mA	50mA
Quiescent Current (Max)	1.2µA	1.2µA	1.2µA	400µA	320µA	700µA	130µA	4µA
CMRR (Typ)	88dB	88dB	88dB	61.41dB	81.94dB	81.94dB	66dB	70dB
PSRR (Typ)	105dB	105dB	105dB	61.94dB	81.94dB	81.94dB	70dB	80dB
Propagation Delay (Max)	240µs	240µs	240µs	40ns	40ns	80ns	80ns	8µs
Operating Temperature	-40°C~125°C	-40°C~125°C	-40°C~125°C	-40°C~125°C	-40°C~85°C	-40°C~85°C	-40°C~125°C	-40°C~125°C
Package	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5	8-SOIC	8-uMAX/uSOP	SOT-23-5	SOT-23-6
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3
AEC-Q100	—	Yes	Yes	—	—	—	—	—

Engineering Selection Recommendations

Direct Substitution (Parametric Equivalents): TLV3701QDBVRG4Q1 and TLV3701QDBVRQ1 are direct electrical equivalents with identical performance specifications. Selection between these and the main part depends on packaging availability and automotive qualification requirements. Both maintain ROHS3 compliance and MSL-1 rating. The automotive-grade variants (AEC-Q100 qualified) are suitable for applications requiring automotive-level reliability and traceability.

Cross-Manufacturer Substitution (Maxim Integrated): MAX9140AAUK+T provides the fastest propagation delay (40ns) among alternatives but operates within a narrower supply voltage range (2.7V–5.5V) and exhibits higher quiescent current (400µA). MAX9141ESA+ and MAX941EUA+T offer improved input offset voltage (2–3mV) and lower input bias current but require evaluation for package compatibility and thermal management due to different case styles. Operating temperature range is limited to -40°C to 85°C for MAX9141 and MAX941 series.

Cross-Manufacturer Substitution (Microchip Technology): MCP6561T-E/OT maintains SOT-23-5 package compatibility with superior input bias current (1pA) and higher output current capability (50mA). MCP65R41T-1202E/CHY includes integrated voltage reference functionality in a SOT-23-6 package, suitable for applications requiring reference generation. Both Microchip options support extended supply voltage range (1.8V–5.5V) and full -40°C to 125°C operating temperature.

Selection Criteria:

For automotive applications: Select TLV3701QDBVRG4Q1 or TLV3701QDBVRQ1 (AEC-Q100 qualified)
For high-speed applications: MAX9140AAUK+T (40ns propagation delay)
For low-power, high-impedance input circuits: MCP6561T-E/OT (1pA input bias)
For integrated reference requirement: MCP65R41T-1202E/CHY
For extended supply voltage range: MCP6561T-E/OT or MCP65R41T-1202E/CHY (1.8V minimum)

Frequently Asked Questions (FAQ)

Q: Can TLV3701QDBVRG4Q1 or TLV3701QDBVRQ1 be used as direct replacements for TLV3701QDBVREP? A: Yes. Both parts are parametric equivalents with identical electrical specifications, output type, and package. Differences are limited to packaging format (Cut Tape & Digi-Reel versus Tape & Reel) and automotive qualification (AEC-Q100). PCB layout and circuit operation remain unchanged.

Q: What is the primary limitation when substituting with MAX9140AAUK+T? A: Supply voltage range is restricted to 2.7V–5.5V, eliminating compatibility with applications requiring higher supply voltages (up to 16V). Additionally, quiescent current is significantly higher (400µA versus 1.2µA), impacting power consumption in battery-powered designs.

Q: Are Microchip MCP6561 variants pin-compatible with the TLV3701QDBVREP? A: MCP6561T-E/OT is pin-compatible in SOT-23-5 package. However, MCP6561T-E/LT uses SC-70-5 package, which is not directly interchangeable. Verify PCB footprint compatibility before selection.

Q: Can MAX9141ESA+ replace TLV3701QDBVREP in a high-temperature application? A: No. MAX9141ESA+ operates only to 85°C maximum, whereas TLV3701QDBVREP supports -40°C to 125°C. For applications requiring full temperature range, select TLV3701 variants or MCP6561 series.

Q: What is the advantage of MCP65R41T-1202E/CHY over other substitutes? A: MCP65R41T-1202E/CHY integrates a voltage reference function, reducing external component count in applications requiring precision reference generation. However, it uses SOT-23-6 package (6 pins) versus SOT-23-5 (5 pins), requiring PCB redesign.

Q: Are all listed substitutes ROHS3 compliant? A: Yes. All parts listed maintain ROHS3 compliance and MSL-1 moisture sensitivity rating, meeting environmental and reliability standards for industrial and commercial applications.

Q: Which substitute offers the lowest input bias current? A: MCP6561T-E/OT and MCP65R41T-1202E/CHY both specify 1pA input bias current at 5.5V, compared to 250pA for TLV3701QDBVREP. This advantage is critical for high-impedance sensor interfaces and precision measurement circuits.

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