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HomeProductsIntegrated Circuits (ICs)Linear - ComparatorsTLV3494AIPWR
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TLV3494AIPWR - Texas Instruments

Manufacturer Part Number
TLV3494AIPWR
Manufacturer
Texas Instruments
Allelco Part Number
32D-TLV3494AIPWR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
12,611 pcs available, New & Original
Parts Description
IC COMPARATOR 4 GEN PUR 14TSSOP
Package
14-TSSOP
Data sheet
TLV3494AIPWR.pdf

HTML Datasheet

TLV3491/92/94.pdf
RoHs Status
ROHS3 Compliant
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The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

TLV3494AIPWR Tech Specifications
Texas Instruments - TLV3494AIPWR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TLV3494AIPWR

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply, Single/Dual (±) 1.8V ~ 5.5V
Voltage - Input Offset (Max) 15mV @ 5.5V
Type General Purpose
Supplier Device Package 14-TSSOP
Series -
Propagation Delay (Max) 13.5µs
Package / Case 14-TSSOP (0.173", 4.40mm Width)
Package Tape & Reel (TR)
Output Type CMOS, Push-Pull, Rail-to-Rail
Product Attribute Attribute Value
Operating Temperature -40°C ~ 125°C
Number of Elements 4
Mounting Type Surface Mount
Hysteresis -
Current - Quiescent (Max) 1.2µA
Current - Output (Typ) -
Current - Input Bias (Max) 10pA @ 5.5V
CMRR, PSRR (Typ) 74dB CMRR, 69.12dB PSRR
Base Product Number TLV3494

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

TLV3494AIPWR Image
TLV3494AIPWR (1)

Manufacturer Part Number

TLV3494AIPWR

Manufacturer

Texas Instruments

Introduction

The TLV3494AIPWR is a general-purpose linear comparator from Texas Instruments, featuring four elements and tailored for low-voltage applications.

Product Features and Performance

Quad comparator design

CMOS, Push-Pull, Rail-to-Rail output type

Supports voltage supply from 1.8V to 5.5V

Low input offset voltage: 15mV maximum at 5.5V

Nano power consumption: Input bias current max 10pA at 5.5V

Ultra-low quiescent current: 1.2µA max

High CMRR of 74dB and PSRR of 69.12dB for better noise rejection

Maximum propagation delay of 13.5µs

Operates efficiently from -40°C to 125°C

Product Advantages

Integral four elements allowing for multichannel operation

Rail-to-Rail output enhances output swinging capabilities

Extremely low power requirements suitable for battery-powered devices

High precision with minimal input offset

Key Technical Parameters

Voltage Supply: 1.8V to 5.5V

Current Quiescent (Max): 1.2µA

Voltage Input Offset (Max): 15mV @ 5.5V

Current Input Bias (Max): 10pA at 5.5V

Propagation Delay (Max): 13.5µs

Operating Temperature Range: -40°C to 125°C

Quality and Safety Features

Robust operating temperature range guarantees performance under extreme conditions

Compatibility

Compatible with TSSOP mounting and packaging for standard integration into circuit boards

Application Areas

Industrial controls

Battery management systems

Power supply management

Consumer electronics monitoring

Product Lifecycle

Currently in active production

No reported discontinuation, ensuring long-term availability

Suitable replacements or upgrades should be considered in the TLV3494 series

Several Key Reasons to Choose This Product

Multiple comparators in a single package reduce overall system footprint

Low power consumption extends battery life in portable devices

High precision enhances system sensitivity and accuracy

Wide supply voltage range facilitates compatibility with a variety of power setups

Highly versatile with applications spanning across diverse electronic systems

Frequently Asked Questions(FAQ)

How does the TLV3494AIPWR perform in low-voltage applications requiring rail-to-rail input and output swing, and what design constraints should be considered for reliable operation?
The TLV3494AIPWR is optimized for low-voltage systems operating from 1.8V to 5.5V, making it suitable for battery-powered and portable electronics where voltage headroom is limited. Its rail-to-rail input and output stages ensure maximum signal swing across the supply range, minimizing distortion and improving dynamic range. However, when operating near the lower end of the supply (e.g., 1.8V), designers must account for the 15mV maximum input offset voltage, which can shift decision thresholds by up to 0.8% of full-scale swing—potentially affecting precision comparators in ADC front-ends or threshold detectors. Additionally, while the 10pA input bias current minimizes loading on high-impedance sources, the 1.2µA quiescent current may influence power budgets in ultra-low-power designs, especially when multiple channels are active simultaneously.
What is the propagation delay of the TLV3494AIPWR, and how might it impact system timing in high-speed switching applications?
The TLV3494AIPWR has a maximum propagation delay of 13.5µs, which determines how quickly the comparator responds to input changes. This latency can affect the timing margin in applications such as window comparators, overvoltage protection circuits, or sample-and-hold control loops. For instance, in a 10kHz switching system with multiple comparator stages, cumulative delays could introduce phase lag exceeding acceptable limits. While this delay supports stable operation without oscillation in most general-purpose uses, it may require careful PCB layout and signal conditioning when interfacing with fast digital logic or analog-to-digital conversion chains that demand sub-millisecond response times.
How do the input offset voltage and bias current specifications of the TLV3494AIPWR influence accuracy in precision voltage detection scenarios?
The TLV3494AIPWR exhibits a maximum input offset voltage of 15mV at 5.5V supply, which introduces uncertainty in threshold-based decisions. In precision applications like battery fuel gauging or sensor signal conditioning, where detection thresholds are close to signal levels, this offset can cause false triggering or missed events. For example, detecting a 100mV battery under-voltage condition becomes ambiguous if the comparator’s internal offset shifts the actual trip point by ±15mV. Coupled with a max input bias current of 10pA, which draws negligible charge from high-resistance divider networks, the device avoids loading errors—but only if source impedance remains below several hundred megaohms. Designers must ensure resistor tolerances and layout parasitics are controlled to prevent offset drift due to thermal gradients or long traces.
How does the TLV3494AIPWR compare to single-supply op-amps in terms of power consumption and noise performance for use in mixed-signal systems?
Compared to typical single-supply operational amplifiers, the TLV3494AIPWR consumes significantly less power—just 1.2µA quiescent current versus tens to hundreds of microamps in many op-amp counterparts. This makes it more suitable for always-on monitoring circuits. However, op-amps generally offer lower input-referred noise (often <10nV/√Hz) compared to the TLV3494AIPWR, which lacks detailed noise specification but typically exhibits higher broadband noise due to its comparator architecture. In mixed-signal systems requiring both amplification and comparison functions, using discrete comparators like the TLV3494AIPWR allows optimization of each stage: an amplifier for signal gain followed by a comparator for clean switching, avoiding compromises inherent in unity-gain stable op-amps repurposed as comparators.
Can the TLV3494AIPWR safely interface with 3.3V CMOS logic families without level-shifting circuitry?
Yes, the TLV3494AIPWR features CMOS-compatible push-pull outputs that directly drive standard 3.3V or 5V CMOS inputs without external components. Its output swing reaches rail-to-rail, ensuring logic-high levels exceed VOH(min) requirements for 3.3V logic even at 1.8V supply operation. The device’s output stage is capable of sinking and sourcing sufficient current (typically tens of mA) to meet fanout requirements of common logic families. Nevertheless, in noisy environments or long trace runs, series termination resistors or pull-up/down networks may still be beneficial to suppress ringing and ensure clean transitions.
What considerations apply when cascading multiple TLV3494AIPWR units in a multi-stage comparator array?
When cascading four independent comparators within the TLV3494AIPWR or across multiple devices, designers must account for cumulative propagation delays and potential metastability risks at high data rates. Each comparator adds up to 13.5µs of latency, so a two-stage chain introduces up to 27µs delay—significant in time-critical systems. Additionally, asynchronous inputs feeding into sequential logic (e.g., flip-flops) can lead to race conditions unless proper synchronization is implemented. It’s advisable to use synchronous design techniques or include hysteresis to prevent chatter during transition periods. Thermal coupling between channels is minimal due to package isolation, but shared power and ground planes should maintain low impedance to avoid crosstalk-induced false triggering.
Is the TLV3494AIPWR suitable for industrial temperature applications, and what environmental factors could affect its long-term reliability?
The TLV3494AIPWR operates reliably across -40°C to +125°C, meeting stringent industrial and automotive-grade requirements. At elevated temperatures, the input offset voltage may increase slightly beyond the specified 15mV limit, though still within functional margins for non-precision switching. Moisture sensitivity level (MSL) 2 indicates moderate susceptibility to humidity during reflow soldering; therefore, proper storage in dry-pack and adherence to JEDEC J-STD-020 guidelines are essential. Lead-free and RoHS3 compliant, the part avoids halogenated compounds, reducing corrosion risk in humid or saline environments. Long-term bias stress on input transistors is minimal due to the CMOS process, but periodic calibration may be needed in ultra-stable reference circuits.
How does the common-mode rejection ratio (CMRR) of the TLV3494AIPWR behave under varying supply voltages, and what implications does this have for noisy power rails?
The TLV3494AIPWR achieves a typical CMRR of 74dB, meaning it suppresses common-mode signals by over 30,000 times relative to differential inputs. This performance remains relatively stable across the 1.8V to 5.5V supply range, although exact values depend on process variation and temperature. In systems with poorly regulated supplies or switching noise coupled through ground loops, this level of CMRR helps maintain reliable switching thresholds. However, in environments with high-frequency common-mode interference (e.g., motor drives or RF fields), external filtering or shielding may still be required. The PSRR of 69.12dB further indicates good immunity to supply ripple, supporting stable operation even with unregulated sources like batteries under load transients.
Can the TLV3494AIPWR replace dedicated window comparator ICs in overvoltage/undervoltage detection circuits?
While the TLV3494AIPWR lacks built-in window comparator functionality, its four independent comparators allow flexible implementation of window detection using external resistors and feedback networks. By configuring two comparators as upper and lower threshold detectors and combining their outputs via an AND gate or microcontroller input, a complete undervoltage/overvoltage monitor can be realized. This approach consumes additional board space and components but offers greater flexibility in threshold setting and response timing. Compared to integrated window comparator solutions, the TLV3494AIPWR provides superior slew-rate control and rail-to-rail capability, avoiding saturation delays common in input-limited devices.
How does the small 14-TSSOP package of the TLV3494AIPWR affect thermal dissipation and layout density in compact PCBs?
The 14-pin TSSOP package (4.4mm × 6.5mm footprint) enables high-density mounting but presents thermal challenges due to limited exposed pad area and poor heat sinking compared to larger packages. Although the TLV3494AIPWR dissipates little power (<1mW under typical conditions), localized heating from adjacent dense components can raise junction temperature beyond 125°C if airflow is restricted. Designers should allocate adequate copper pour around the device and avoid routing sensitive analog traces underneath. The surface-mount orientation also affects automated assembly yields—proper pick-and-place calibration ensures reliable soldering, especially given the narrow pitch of 0.65mm pads.
What precautions should be taken when driving capacitive loads with the output of the TLV3494AIPWR?
The TLV3494AIPWR’s push-pull output stage can drive moderate capacitive loads (up to ~100pF) without instability, but excessive capacitance (>1nF) may cause shoot-through currents during crossover transitions or slow rise/fall times that degrade signal integrity. In such cases, adding a small series resistor (e.g., 22–100Ω) near the output pin damps oscillations and protects the output drivers. This damping is particularly important when driving long cables or multiple buffered stages. Care should also be taken to minimize parasitic inductance in the return path to prevent ringing. Unlike open-drain comparators, the CMOS output actively pulls high and low, so bidirectional loading requires symmetrical termination.
Does the TLV3494AIPWR support open-drain or tri-state outputs, and how does this affect interface design flexibility?
No, the TLV3494AIPWR provides only CMOS push-pull outputs, meaning both high and low states are actively driven. This eliminates the need for external pull-up resistors used in open-drain configurations but restricts use in bus-sharing topologies like I²C without additional buffering. The active outputs enable faster switching and direct compatibility with standard logic families, reducing component count. However, simultaneous assertion of multiple outputs can create contention if not properly managed, especially in fault-detection systems where one channel asserts while another tries to negate. Proper state coordination through firmware or external logic prevents shoot-through and ensures safe operation.
How does the lack of built-in hysteresis in the TLV3494AIPWR affect noise immunity in switching applications?
The TLV3494AIPWR does not incorporate internal hysteresis, making it vulnerable to noise-induced chatter when input signals approach the threshold region. In environments with significant electromagnetic interference (EMI) or inductive kickback (e.g., relay coils or motor controllers), small voltage fluctuations around the decision point can trigger multiple output transitions per cycle. To mitigate this, designers must implement external hysteresis using positive feedback resistors—adding perhaps 10kΩ from output to non-inverting input creates a few millivolts of hysteresis, suppressing bounce without degrading response speed. This trade-off between speed and stability is critical in precision threshold detection where false alarms compromise system reliability.
What role does the base product number TLV3494 play in selecting alternative components or verifying datasheet alignment?
The base product number TLV3494 refers to the entire family of variants including different speed grades, package types, and electrical characteristics. The A variant (TLV3494AIPWR) specifically denotes enhanced performance with reduced offset and bias current, suitable for precision applications. When substituting parts, matching the base number ensures compatibility in pinout, supply range, and core architecture. However, differences in propagation delay, package thermal properties, or ESD ratings necessitate cross-checking individual datasheets. Using non-A versions in precision designs risks exceeding offset limits or introducing unnecessary latency, potentially violating system timing budgets.
How does the TLV3494AIPWR handle input signals beyond the absolute maximum ratings, and what failure modes should be anticipated?
Exceeding the absolute maximum ratings—such as supplying more than 6.5V or applying negative voltages to inputs when powered at 5.5V—can permanently damage the input protection diodes and cause latch-up or thermal runaway. Although the device includes internal ESD protection rated at ±2kV HBM, sustained overvoltage conditions overwhelm these mechanisms. Inputs should never exceed VDD+0.3V or go below GND−0.3V regardless of power state. If external clamping diodes or TVS elements are absent, transient spikes from inductive loads or static discharge can destroy the chip. Always ensure proper biasing and decoupling to keep inputs within operational limits.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TLV3494AIPWR

Product Attribute TLV3494AIDRG4 TLV3494AIDR TLV3492AIDR TLV3492AIDRG4
Part Number TLV3494AIDRG4 TLV3494AIDR TLV3492AIDR TLV3492AIDRG4
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Propagation Delay (Max) - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Voltage - Supply, Single/Dual (±) - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Mounting Type - Surface Mount Through Hole Surface Mount
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Hysteresis - - - -
Current - Quiescent (Max) - - - -
Voltage - Input Offset (Max) - - - -
Number of Elements - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Series - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Current - Input Bias (Max) - - - -
Type - - - -
CMRR, PSRR (Typ) - - - -
Current - Output (Typ) - - - -

TLV3494AIPWR Datasheet PDF

Download TLV3494AIPWR pdf datasheets and Texas Instruments documentation for TLV3494AIPWR - Texas Instruments.

HTML Datasheet
TLV3491/92/94.pdf

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    Jul 20, 2026

    Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.

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    Jul 15, 2026

    Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.

  • FPGA***lorer88
    Jul 7, 2026

    The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.

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    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

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TLV3494AIPWR Image

TLV3494AIPWR

Texas Instruments
32D-TLV3494AIPWR

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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