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Texas Instruments TLV2354IN
- Part No.:
- TLV2354IN
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2354IN.pdf
- Description:
- IC DIFF COMPARATOR QUAD 14-DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,010
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Product details
Overview
TLV2354IN from Texas Instruments is a quadruple low-voltage differential comparator IC designed for single-supply operation down to 2 V, featuring 240 µA typical supply current at 3 V, 5 pA typical input bias current, and rail-to-rail common-mode input range including ground. It delivers 200 ns typical response time for TTL-level input steps and open-drain N-channel outputs requiring external pull-up resistors - used in battery-powered voltage monitoring and precision threshold detection circuits.
For engineers reviewing the TLV2354IN datasheet, TLV2354IN pinout, TLV2354IN application, or TLV2354IN equivalent, key selection considerations include its LinCMOS™ high-impedance input (10¹² Ω typ), 5 mV max input offset voltage at 25°C, –40°C to 85°C operating range, and compatibility with TTL/MOS/CMOS logic families via open-drain output configuration.
Technical Context
The TLV2354IN implements four independent comparators using Texas Instruments' LinCMOS™ process, enabling ultra-low input bias current and high input impedance essential for interfacing with high-impedance sensors and reference sources. Its open-drain output stage supports wired-AND logic and flexible level translation via external pull-up.
It operates across 2 V to 8 V supply rails and is fully characterized at both 3 V and 5 V. The device includes built-in ESD protection rated at 1000 V (HBM) and supports common-mode input voltages extending to ground - critical for single-supply signal conditioning in portable instrumentation and power management systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 8 V - enables direct use in 3 V and 5 V systems, including coin-cell and Li-ion powered designs. |
| Input Bias Current | 5 pA typ at 25°C - minimizes loading on high-impedance sources like photodiodes or precision voltage dividers. |
| Input Offset Voltage | 5 mV max at 25°C - ensures reliable switching accuracy for thresholds within ±2.5 mV of reference points. |
| Response Time | 200 ns typ for TTL-level input step - supports fast edge detection in timing-critical window comparators and overvoltage latches. |
| Common-Mode Input Range | Includes ground (0 V) - allows direct sensing of signals referenced to system ground without level-shifting circuitry. |
| Output Type | N-channel open-drain - permits wired-AND configuration and interface to multiple logic families via selectable pull-up voltage. |
| ESD Rating | 1000 V HBM - provides baseline handling robustness during assembly and board-level integration. |
Pinout & Package
TLV2354IN is supplied in a 14-pin plastic DIP (N) package with through-hole mounting. Pin assignments follow standard dual-in-line layout with 0.3-inch row spacing and 0.1-inch pin pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1IN– | Inverting input for comparator channel 1 - accepts reference or sensed signal for differential comparison. |
| 2 | 1IN+ | Non-inverting input for comparator channel 1 - typically connected to sensor output or adjustable threshold. |
| 3 | 1OUT | Open-drain output for channel 1 - requires external pull-up resistor to define logic-high voltage level. |
| 4 | 2IN– | Inverting input for channel 2 - supports independent dual-threshold detection in compact space-constrained layouts. |
| 5 | 2IN+ | Non-inverting input for channel 2 - enables simultaneous monitoring of two distinct analog conditions. |
| 6 | 2OUT | Open-drain output for channel 2 - allows independent logic-level assertion or wired-AND combination with other channels. |
| 7 | VDD–/GND | Ground terminal - serves as common return for all four comparators and internal circuitry. |
| 8 | 3OUT | Open-drain output for channel 3 - facilitates multi-zone fault detection or cascaded comparator architectures. |
| 9 | 4OUT | Open-drain output for channel 4 - supports redundant sensing or parallel decision logic in safety-critical subsystems. |
| 10 | 4IN+ | Non-inverting input for channel 4 - completes full quad-channel input set for comprehensive analog monitoring. |
| 11 | 4IN– | Inverting input for channel 4 - enables balanced differential inputs across all four channels. |
| 12 | 3IN+ | Non-inverting input for channel 3 - maintains consistent pin mapping for scalable design reuse. |
| 13 | 3IN– | Inverting input for channel 3 - ensures symmetrical layout for noise-immune PCB routing. |
| 14 | VDD+ | Positive supply rail - powers all four comparators and internal bias networks from single 2–8 V source. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ input stage | 10¹² Ω typical input impedance - eliminates loading errors when measuring high-impedance sources such as thermistors or pH electrodes. |
| Ultra-low input bias current | 5 pA typical at 25°C - preserves accuracy in precision integrators and low-leakage sample-and-hold circuits. |
| Rail-to-rail common-mode range | Includes ground (0 V) - enables direct interface to ground-referenced sensors without input biasing resistors. |
| Open-drain N-channel outputs | Supports wired-AND logic and mixed-voltage domain interfacing via externally selected pull-up voltage. |
| Low quiescent current | 240 µA typical at 3 V - extends battery life in always-on monitoring applications such as smoke detectors and wearables. |
| ESD-protected architecture | 1000 V HBM rating - reduces risk of field failure during handling and rework in industrial environments. |
Applications
| Battery Voltage Monitor | Overvoltage Protection Circuit |
|---|---|
|
Use Scenario: Monitoring lithium-ion cell voltage during charging to trigger cutoff at 4.2 V and warning at 4.1 V. IC Role / Device Role / Timing Role: TLV2354IN acts as dual-threshold comparator with independent hysteresis control per channel. Use Value: Enables precise, low-power state-of-charge indication using only two comparator channels and passive resistor dividers. |
Use Scenario: Detecting excessive input voltage in DC-DC converter front-end before damage occurs to downstream regulators. IC Role / Device Role / Timing Role: TLV2354IN functions as fast-response overvoltage latch with open-drain output driving MOSFET gate shutdown path. Use Value: Achieves sub-microsecond fault response with 200 ns propagation delay, preventing thermal runaway in power supplies. |
| Window Comparator for Sensor Output | Zero-Crossing Detector for AC Signals |
|
Use Scenario: Validating thermistor output stays within calibrated temperature band (e.g., 25°C ±2°C) in medical diagnostic equipment. IC Role / Device Role / Timing Role: TLV2354IN implements four-quadrant window detection using two channels for upper/lower bounds and two for status flag generation. Use Value: Provides fail-safe validation with rail-to-rail input capability and <5 mV offset error - eliminating need for op-amp buffer stages. |
Use Scenario: Converting sine-wave AC line voltage into clean digital zero-crossing pulses for phase-controlled dimmers and motor controllers. IC Role / Device Role / Timing Role: TLV2354IN serves as precision zero-crossing detector with ground-referenced input and hysteresis-adjustable threshold. Use Value: Delivers jitter-free timing edges due to 5 pA input bias current and 200 ns response - improving power factor correction accuracy. |
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 |
|---|---|---|---|
| TLV2354IPW | TSSOP-14 package, RoHS-compliant NiPdAu lead finish, MSL Level-1, same electrical specs and temperature range (–40°C to 85°C). | Suitable for surface-mount automated assembly; smaller footprint than DIP but requires reflow-compatible layout. | Select TLV2354IPW for space-constrained PCBs and high-volume SMT production where hand-soldering or through-hole mounting is not required. |
| LM339N | Bipolar input stage, higher supply current (500 µA typ), wider offset voltage (7 mV max), no guaranteed operation below 2 V. | Limited to ≥2 V operation only at reduced performance; lacks rail-to-ground input capability and LinCMOS™ input impedance. | Choose LM339N only if cost sensitivity outweighs precision requirements and existing designs already use bipolar comparators with compatible layout. |
Compared with TLV2354IN, TLV2354IPW offers identical functionality in a modern surface-mount package ideal for automated manufacturing, while LM339N trades input precision and low-voltage operation for legacy compatibility and lower unit cost in non-critical applications.
Availability
TLV2354IN is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial voltage supervision, and portable sensor interface applications requiring stable component supply and long-term obsolescence support.
Supply support for TLV2354IN 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 decades of expertise in precision analog IC design and high-reliability manufacturing.
The TLV2354IN belongs to TI's LinCMOS™ low-voltage comparator family, engineered specifically for single-supply, low-power, high-impedance sensing applications in portable, medical, and industrial systems.
FAQ
What is the maximum operating temperature range for the TLV2354IN?
The TLV2354IN is fully characterized for operation from –40°C to +85°C. This industrial temperature grade makes it suitable for deployment in automotive cabin modules, factory automation sensors, and outdoor IoT edge nodes where ambient temperatures exceed consumer-grade limits. The device maintains specified input offset voltage (≤5 mV), supply current (≤800 µA), and response time performance across this full range.
Does the TLV2354IN require external pull-up resistors on its outputs?
Yes, the TLV2354IN features N-channel open-drain outputs that require external pull-up resistors to establish a defined logic-high voltage level. Each output (pins 1, 3, 8, 9) must be connected to a pull-up resistor tied to a compatible voltage rail - which may differ from VDD+ to enable level translation. Typical values range from 2.2 kΩ to 10 kΩ depending on speed and drive strength requirements. Without pull-ups, outputs remain floating and cannot assert HIGH states.
Can the TLV2354IN operate from a 2.5 V supply?
Yes, the TLV2354IN is explicitly rated for operation from 2 V to 8 V, and its electrical characteristics-including 240 µA typical supply current, 5 pA input bias current, and 5 mV max input offset voltage-are guaranteed at 3 V and 5 V. At 2.5 V, performance remains functional per datasheet limits: common-mode input range extends to ground, output low voltage stays ≤300 mV at 2 mA load, and response time increases modestly but remains usable for most monitoring tasks. No derating or special biasing is required.
How does the TLV2354IN's input impedance benefit sensor interfacing?
The TLV2354IN's LinCMOS™ input stage delivers 10¹² Ω typical input impedance, minimizing loading effects on high-impedance sources such as thermistors, RTDs, photodiodes, and capacitive humidity sensors. This prevents signal attenuation and measurement drift caused by current draw-enabling direct connection without buffer amplifiers. For example, a 10 MΩ thermistor divider experiences less than 0.001% error with TLV2354IN versus >10% error with bipolar comparators, preserving calibration integrity in precision measurement systems.
Is the TLV2354IN pin-compatible with the LM339 series?
No, the TLV2354IN is not pin-compatible with the LM339 series. While both are quad comparators, TLV2354IN uses a 14-pin DIP layout with dedicated VDD+ (pin 14) and VDD–/GND (pin 7), whereas LM339N places GND at pin 12 and VCC at pin 3. Additionally, TLV2354IN assigns inputs and outputs differently (e.g., 1IN– at pin 1, 1IN+ at pin 2), unlike LM339N's reversed order. Direct replacement would require PCB redesign. Functional substitution is possible only with schematic and layout revision.
TLV2354IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Series:
- LinCMOS™
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- Through Hole
- :
- 14-PDIP
TLV2354IN FAQ
1.How can I place an order for TLV2354IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2354IN 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 TLV2354IN reliable?
The price and inventory of TLV2354IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2354IN is usually 5 days.
3.What payment methods are accepted for TLV2354IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2354IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2354IN?
TLV2354IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2354IN 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 TLV2354IN?
For technical support, including TLV2354IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2354IN requirements.
6.How does Aetrix verify that TLV2354IN is sourced from the original manufacturer or authorized distributors?
All TLV2354IN 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 TLV2354IN meets industry standards.
7.What is the process for return or replacement of TLV2354IN?
All TLV2354IN units undergo pre-shipment inspection (PSI). If there is an issue with TLV2354IN, 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 TLV2354IN part is unused and in its original packaging.
Return procedure for TLV2354IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2354IN Tags
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