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Home > Products > Integrated Circuits (ICs) > Linear > Comparators

Texas Instruments TLV2354IDRG4

Name: TLV2354IDRG4
Brand: Texas Instruments
SKU: TLV2354IDRG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLV2354IDRG4

Manufacturer:: Texas Instruments

Category:: Comparators

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: TLV2354IDRG4.pdf

Description:: IC COMPARATOR 4 DIFF 14SOIC

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Product details

Overview

TLV2354IDRG4 from Texas Instruments is a quadruple low-voltage differential comparator IC using LinCMOS™ technology, designed for single-supply operation from 2 V to 8 V. It delivers 240 µA typical supply current at 3 V, features 10¹² Ω typical input impedance, 5 pA typical input bias current, and 200 ns typical response time for TTL-level input steps - enabling precision threshold detection in battery-powered sensor interfaces.

For engineers reviewing the TLV2354IDRG4 datasheet, TLV2354IDRG4 pinout, TLV2354IDRG4 application, or TLV2354IDRG4 equivalent, key selection considerations include its open-drain N-channel outputs requiring external pull-up resistors, ground-sensing common-mode input range, –40°C to 85°C operating temperature, and SOIC-14 packaging with RoHS-compliant NiPdAu lead finish.

Technical Context

The TLV2354IDRG4 integrates four independent comparators on a single die using Texas Instruments' LinCMOS™ process, delivering ultra-high input impedance (>10¹² Ω) and sub-picoampere input bias current (5 pA typ). Its input stage operates down to ground, supporting direct interfacing with resistive sensors and voltage dividers referenced to system ground.

All four channels feature open-drain N-channel output stages, enabling wired-AND logic configurations and flexible level translation via external pull-up resistors. The device is fully characterized at 3 V and 5 V supply rails, with input offset voltage ≤5 mV at 25°C and guaranteed operation across –40°C to 85°C.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2 V to 8 V - supports direct integration into 3 V and 5 V systems, including coin-cell and Li-ion powered devices.
Supply Current (Typ)	240 µA at 3 V - enables multi-year operation in always-on battery monitoring and IoT wake-up circuits.
Input Bias Current (Typ)	5 pA at 25°C - preserves signal integrity when conditioning high-impedance sources like piezoelectric sensors or pH electrodes.
Input Offset Voltage (Max)	5 mV at 25°C - ensures reliable detection of small differential signals (e.g., thermistor bridges, current-sense shunts).
Response Time (Typ)	200 ns for TTL-level step at 5 V - suitable for fast edge detection in motor commutation feedback and overvoltage latch circuits.
Common-Mode Input Range	Includes ground (0 V) - allows direct sensing of signals referenced to system ground without level-shifting circuitry.
Output Configuration	N-channel open-drain - supports wired-AND logic, mixed-voltage interfacing, and programmable hysteresis via external feedback.

Pinout & Package

TLV2354IDRG4 is housed in a 14-pin SOIC (D) package, 3.90 mm wide, with standard JEDEC MS-012AC outline and RoHS-compliant NiPdAu lead finish. Pin 1 is marked by a beveled corner or dot; the device is tape-and-reel packaged (2500 units per reel).

Pin/Terminal	Circuit Role	Design Meaning
1	OUT A	Open-drain output of Comparator A - requires external pull-up resistor to define logic HIGH level and sink current when active LOW.
2	IN– A	Inverting input of Comparator A - accepts reference or feedback signal; high-impedance node minimizes loading on source.
3	IN+ A	Non-inverting input of Comparator A - connects to sensed signal; supports rail-to-rail common-mode range including ground.
4	VDD+	Positive supply rail - powers all four comparators; decoupling capacitor (0.1 µF) recommended near this pin.
5	IN+ B	Non-inverting input of Comparator B - electrically isolated from other channels; enables independent dual-threshold detection.
6	IN– B	Inverting input of Comparator B - paired with Pin 5 for second comparator; supports differential or single-ended configuration.
7	OUT B	Open-drain output of Comparator B - shares no internal connection with OUT A; enables independent output routing.
8	GND / VDD–	Ground reference / negative supply terminal - serves as return path for all comparators and output loads.
9	OUT C	Open-drain output of Comparator C - supports third independent decision channel; compatible with 1.8 V–5.5 V pull-up voltages.
10	IN– C	Inverting input of Comparator C - high-impedance node; immune to leakage-induced errors in low-current applications.
11	IN+ C	Non-inverting input of Comparator C - identical electrical characteristics to Pins 2/3/5/6; supports consistent design reuse.
12	IN+ D	Non-inverting input of Comparator D - completes quad-channel set; enables simultaneous monitoring of four independent thresholds.
13	IN– D	Inverting input of Comparator D - matched input structure ensures uniform propagation delay and offset behavior across all channels.
14	OUT D	Open-drain output of Comparator D - fully independent; supports dedicated fault signaling or status indication without cross-talk.

Key Features

Feature	Design Value
LinCMOS™ input stage	10¹² Ω typical input impedance enables direct connection to megohm-range sensors without signal degradation.
Ground-sensing input range	Common-mode voltage includes 0 V - eliminates need for level-shifting circuitry when monitoring signals referenced to system ground.
Ultra-low input bias current	5 pA typical at 25°C - prevents measurement error in high-impedance transducer interfaces such as photodiode amplifiers.
Open-drain N-channel outputs	Four independent outputs support wired-AND logic, mixed-voltage interfacing, and programmable hysteresis via external feedback.
ESD protection	1000-V HBM rating - reduces risk of handling damage during PCB assembly and field service without requiring special precautions beyond standard ESD protocols.

Applications

Battery Voltage Monitor	Sensor Threshold Detector
Use Scenario: Monitoring lithium-ion cell voltage to trigger low-battery warning and safe shutdown before deep discharge. IC Role / Device Role / Timing Role: Quad comparator compares cell voltage against four precise thresholds (e.g., 4.2 V, 3.8 V, 3.5 V, 3.0 V) using resistor-divider references. Use Value: Single TLV2354IDRG4 replaces four discrete comparators, reducing board area by >60% while maintaining <5 mV offset accuracy across temperature.	Use Scenario: Detecting smoke presence via ionization chamber current drop in residential fire alarms. IC Role / Device Role / Timing Role: One comparator channel monitors chamber current; others implement self-test, battery check, and alarm latching. Use Value: 5 pA input bias current prevents false triggering caused by leakage across contaminated PCB traces or connectors.
Motor Commutation Feedback	Power Supply Sequencing
Use Scenario: Sensing back-EMF zero-crossing points in brushless DC motor control for electronic commutation. IC Role / Device Role / Timing Role: Two comparator channels condition and compare phase voltages; remaining channels validate supply rails and thermal limits. Use Value: 200 ns typical response time at 5 V ensures accurate timing alignment between rotor position and switching events.	Use Scenario: Enforcing strict power-up and power-down sequencing in FPGA or ASIC-based systems with multiple supply domains. IC Role / Device Role / Timing Role: Each comparator independently verifies 1.2 V, 1.8 V, 2.5 V, and 3.3 V rails meet minimum thresholds before enabling downstream logic. Use Value: Ground-referenced input range allows direct sensing of each rail's voltage relative to system GND without external op-amps.

Battery Voltage Monitor

Sensor Threshold Detector

Use Scenario: Monitoring lithium-ion cell voltage to trigger low-battery warning and safe shutdown before deep discharge.

IC Role / Device Role / Timing Role: Quad comparator compares cell voltage against four precise thresholds (e.g., 4.2 V, 3.8 V, 3.5 V, 3.0 V) using resistor-divider references.

Use Value: Single TLV2354IDRG4 replaces four discrete comparators, reducing board area by >60% while maintaining <5 mV offset accuracy across temperature.

Use Scenario: Detecting smoke presence via ionization chamber current drop in residential fire alarms.

IC Role / Device Role / Timing Role: One comparator channel monitors chamber current; others implement self-test, battery check, and alarm latching.

Use Value: 5 pA input bias current prevents false triggering caused by leakage across contaminated PCB traces or connectors.

Motor Commutation Feedback

Power Supply Sequencing

Use Scenario: Sensing back-EMF zero-crossing points in brushless DC motor control for electronic commutation.

IC Role / Device Role / Timing Role: Two comparator channels condition and compare phase voltages; remaining channels validate supply rails and thermal limits.

Use Value: 200 ns typical response time at 5 V ensures accurate timing alignment between rotor position and switching events.

Use Scenario: Enforcing strict power-up and power-down sequencing in FPGA or ASIC-based systems with multiple supply domains.

IC Role / Device Role / Timing Role: Each comparator independently verifies 1.2 V, 1.8 V, 2.5 V, and 3.3 V rails meet minimum thresholds before enabling downstream logic.

Use Value: Ground-referenced input range allows direct sensing of each rail's voltage relative to system GND without external op-amps.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quadruple low-voltage comparator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV2354IPWR	Same die, TSSOP-14 package (3.0 × 4.4 mm), 2000/reel tape-and-reel; identical electrical specs and temperature range.	Preferred for space-constrained PCBs where SOIC footprint is prohibitive; requires adjusted stencil design for fine-pitch reflow.	Select TLV2354IPWR when board area is constrained and automated placement supports 0.65 mm pitch; no schematic or logic changes needed.
LM339DR	Bipolar input stage; 250 µA supply current; 2 mV max offset; wider supply range (2–36 V); push-pull output (no pull-up required).	Better suited for industrial 24 V systems and legacy designs requiring direct drive of LEDs or relays without external components.	Choose LM339DR only when higher supply voltage (>8 V) or push-pull output is mandatory; expect ~10× higher input bias current and reduced ground-sensing capability.

Compared with TLV2354IPWR, TLV2354IDRG4 offers identical performance in a more widely supported SOIC-14 footprint, simplifying prototyping and legacy board reuse; versus LM339DR, it trades bipolar robustness for femtoamp-level input bias and true ground-referenced operation - critical for precision low-power sensing.

Availability

TLV2354IDRG4 is available at Aetrix Electronics and suitable for battery management systems, portable medical sensors, industrial safety controllers, and automotive body electronics requiring stable component supply across extended product lifecycles.

Supply support for TLV2354IDRG4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with over 90 years of innovation in precision signal chain and power management solutions.

The TLV2354IDRG4 belongs to TI's LinCMOS™ low-voltage comparator family, engineered for single-supply, low-power applications where ground-sensing capability, ultra-low input current, and compact integration are essential - especially in portable and energy-harvesting systems.

FAQ

What is the maximum supply voltage rating for TLV2354IDRG4?

The absolute maximum supply voltage for TLV2354IDRG4 is 8 V. Operation above this level risks permanent damage to the LinCMOS™ input stage. Recommended operating range is 2 V to 8 V, with full characterization at 3 V and 5 V. Sustained operation at 8 V is permissible but increases IDD and may reduce long-term reliability under thermal stress - design margins should maintain VDD ≤7.5 V in continuous-use applications.

Does TLV2354IDRG4 support rail-to-rail input common-mode range?

TLV2354IDRG4 supports a common-mode input voltage range that includes ground (0 V) but does not extend to the positive rail. At VDD = 3 V, the valid range is 0 V to 1.75 V; at VDD = 5 V, it is 0 V to 3.75 V. This "ground-sensing, not rail-to-rail" behavior is intentional - the input stage is optimized for low-voltage precision near GND, not full-scale swing. Exceeding VICR causes degraded offset and increased propagation delay.

Why does TLV2354IDRG4 require external pull-up resistors on its outputs?

TLV2354IDRG4 uses N-channel open-drain output transistors, which can only sink current - they cannot source it. An external pull-up resistor to a defined voltage (e.g., 3.3 V or 5 V) is required to establish a logic HIGH state. This architecture enables wired-AND logic, mixed-voltage interfacing, and programmable hysteresis. Typical pull-up values range from 2.2 kΩ (for speed) to 100 kΩ (for ultra-low current), depending on load capacitance and rise-time requirements.

Can TLV2354IDRG4 operate from a 1.8 V supply?

No - TLV2354IDRG4 has a minimum specified supply voltage of 2 V. Below 2 V, the internal biasing fails to activate the LinCMOS™ input stage reliably, resulting in undefined output states, increased propagation delay, and potential latch-up. For 1.8 V systems, consider TI's TLV3704 or Analog Devices' ADCMP341, both rated down to 1.7 V with comparable input impedance and open-drain outputs.

Is TLV2354IDRG4 pin-compatible with other TLV2354 variants like TLV2354IPW?

Yes - TLV2354IDRG4 (SOIC-14) and TLV2354IPW (TSSOP-14) share identical pin numbering, function mapping, and electrical specifications. Both use the same die and are characterized over –40°C to 85°C. However, the packages differ mechanically: SOIC has 1.27 mm pitch and 3.9 mm width; TSSOP has 0.65 mm pitch and 4.4 mm width. PCB layout and solder paste stencil must be redesigned - no direct footprint swap is possible.

TLV2354IDRG4 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Series:: LinCMOS™

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Type:: Differential

Number of Elements:: 4

Output Type:: CMOS, MOS, Open-Drain, TTL

Voltage - Supply, Single/Dual (±):: 2V ~ 8V

:: 5mV @ 5V

Voltage - Input Offset (Max):: 5pA @ 5V

Current - Input Bias (Max):: 20mA

Current - Output (Typ):: 800µA

Current - Quiescent (Max):: -

CMRR, PSRR (Typ):: -

Propagation Delay (Max):: -

Hysteresis:: -40°C ~ 85°C

Operating Temperature:: -

Grade:: -

Qualification:: Surface Mount

:: 14-SOIC

TLV2354IDRG4 FAQ

1.How can I place an order for TLV2354IDRG4 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLV2354IDRG4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TLV2354IDRG4 reliable?

The price and inventory of TLV2354IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2354IDRG4 is usually 5 days.

3.What payment methods are accepted for TLV2354IDRG4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2354IDRG4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLV2354IDRG4?

TLV2354IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLV2354IDRG4 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TLV2354IDRG4?

For technical support, including TLV2354IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2354IDRG4 requirements.

6.How does Aetrix verify that TLV2354IDRG4 is sourced from the original manufacturer or authorized distributors?

All TLV2354IDRG4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLV2354IDRG4 meets industry standards.

7.What is the process for return or replacement of TLV2354IDRG4?

All TLV2354IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2354IDRG4, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TLV2354IDRG4 part is unused and in its original packaging.

Return procedure for TLV2354IDRG4:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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