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Texas Instruments TLV3494AIDRG4
- Part No.:
- TLV3494AIDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV3494AIDRG4.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,092
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Product details
Overview
TLV3494AIDRG4 from Texas Instruments is a quad nanopower push-pull output comparator optimized for ultra-low-power, single-supply systems. It operates from 1.8 V to 5.5 V, draws only 0.85 µA typical quiescent current per channel, features rail-to-rail input range extending 200 mV beyond supply rails, and delivers 6 µs propagation delay at 100 mV overdrive - enabling precise threshold detection in battery-powered medical sensors and portable instrumentation.
For engineers reviewing the TLV3494AIDRG4 datasheet, TLV3494AIDRG4 pinout, TLV3494AIDRG4 application, or TLV3494AIDRG4 equivalent, key selection criteria include its 14-pin SOIC package, push-pull CMOS output stage (no external pull-up required), ±15 mV input offset voltage, 74 dB common-mode rejection, and compatibility with two-cell alkaline or Li-ion battery supplies.
Technical Context
The TLV3494AIDRG4 implements a fully differential, rail-to-rail input stage with ESD-protected inputs capable of tolerating ±500 mV beyond supply rails. Its push-pull output drives high-impedance loads directly without shoot-through current, supporting logic-level interfacing with microcontrollers and ADC reference monitoring circuits.
Each of its four independent comparators operates across –40°C to +125°C with <1.2 µA maximum supply current per channel, 60–74 dB CMRR over full common-mode range, and stable performance under capacitive loads up to 1 nF - making it suitable for noisy industrial sensor interfaces and low-voltage power-on reset generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.8 V to 5.5 V - supports direct operation from single Li-ion or two alkaline cells without regulation. |
| Quiescent Current | 0.85 µA per channel - enables >10-year battery life in always-on sensor wake-up circuits. |
| Propagation Delay | 6 µs at 100 mV overdrive - ensures timely response for fast edge detection in pulse-width monitoring. |
| Input Offset Voltage | ±15 mV max - defines minimum detectable signal difference without external trimming. |
| Input Common-Mode Range | (V−) − 0.2 V to (V+) + 0.2 V - allows direct sensing of signals below ground or above supply in single-supply systems. |
| Output Type | Push-pull CMOS - eliminates need for external pull-up resistors and reduces system BOM count. |
| ESD Rating | ±3000 V HBM - provides robust handling during PCB assembly and field deployment. |
Pinout & Package
TLV3494AIDRG4 is housed in a 14-pin SOIC (D) package measuring 8.65 mm × 3.91 mm, with standard JEDEC MS-012AC footprint and 1.27 mm pitch. Thermal resistance RθJA is 83.8°C/W, supporting operation up to +125°C ambient in properly laid-out PCBs.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Out A | CMOS push-pull output for channel A - sinks or sources current without external components. |
| 2 | –In A | Inverting input for channel A - accepts signals down to 0.2 V below V− (ground). |
| 3 | +In A | Noninverting input for channel A - accepts signals up to 0.2 V above V+ (supply). |
| 4 | V+ | Positive supply rail - must be decoupled with 0.01 µF ceramic + 10 µF electrolytic capacitors. |
| 5 | +In B | Noninverting input for channel B - electrically isolated from other channels. |
| 6 | –In B | Inverting input for channel B - shares no internal connection with pins 2 or 9. |
| 7 | Out B | CMOS push-pull output for channel B - compatible with 1.8-V logic families. |
| 8 | Out C | CMOS push-pull output for channel C - enables independent status signaling per sensor input. |
| 9 | –In C | Inverting input for channel C - supports multi-threshold monitoring in compact space. |
| 10 | +In C | Noninverting input for channel C - referenced to same V+ and V− as all channels. |
| 11 | V− | Negative supply rail - typically connected to ground in single-supply configurations. |
| 12 | +In D | Noninverting input for channel D - allows simultaneous comparison of four independent analog signals. |
| 13 | –In D | Inverting input for channel D - fully differential input pair with no shared internal nodes. |
| 14 | Out D | CMOS push-pull output for channel D - drives LED indicators or MCU interrupt lines directly. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input range | Operates with inputs 200 mV beyond V+ and V− - eliminates level-shifting circuitry in low-voltage sensor front-ends. |
| Push-pull CMOS output | Drives high-impedance loads without pull-up resistors - reduces power loss and board area in battery-critical designs. |
| Nanopower consumption | 0.85 µA per channel typical - enables continuous monitoring in energy-harvesting and coin-cell applications. |
| Fast 6-µs response | Meets timing requirements for pulse-width detection in motor control feedback and digital encoder interfaces. |
| High CMRR (74 dB) | Maintains accuracy in presence of supply ripple or ground noise - critical for precision battery voltage monitoring. |
Applications
| Portable Medical Sensors | Wireless Security Systems |
|---|---|
|
Use Scenario: Detecting abnormal heart rate thresholds in wearable ECG patches using analog front-end signals. IC Role / Device Role / Timing Role: Quad comparator monitors four independent biopotential channels for real-time arrhythmia flagging. Use Value: 0.85 µA per channel enables >5-year operation on CR2032 coin cell while maintaining sub-10 µs timing resolution. |
Use Scenario: Monitoring door/window contact sensor states and motion detector outputs in battery-powered alarm panels. IC Role / Device Role / Timing Role: TLV3494AIDRG4 compares sensor voltages against stable reference to generate discrete intrusion alerts. Use Value: Push-pull outputs interface directly with low-power MCU GPIOs, eliminating external pull-ups and saving 120 µA standby current. |
| Handheld Test Instruments | Ultra-Low-Power IoT Nodes |
|
Use Scenario: Implementing auto-ranging and overload protection in pocket multimeters powered by AAA batteries. IC Role / Device Role / Timing Role: Four comparators monitor input signal amplitude, battery voltage, temperature, and reference stability simultaneously. Use Value: Rail-to-rail inputs accept ±200 mV beyond supply rails - enabling accurate zero-crossing detection without op-amp buffers. |
Use Scenario: Enabling wake-up-from-sleep functionality in environmental sensor nodes based on temperature or humidity thresholds. IC Role / Device Role / Timing Role: TLV3494AIDRG4 acts as autonomous analog trigger, asserting interrupt to MCU only when threshold crossed. Use Value: 6 µs propagation delay ensures rapid wake-up response while 0.85 µA quiescent current preserves multi-year battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3494IPWR | TSSOP-14 package (5.00 mm × 4.40 mm); RθJA = 120.8°C/W vs 83.8°C/W for SOIC; identical electrical specs. | Better suited for high-density PCBs where footprint area is constrained but thermal margin allows higher junction temp. | Select TLV3494IPWR when board space is premium and thermal derating is acceptable; otherwise TLV3494AIDRG4 preferred for thermal robustness. |
| TLV7044DR | Higher quiescent current (360 nA vs 850 nA typical); wider supply range (1.6 V to 6.5 V); open-drain output requiring pull-up. | Requires external pull-up resistor; better for wired-OR bus architectures but increases power in always-on mode. | Choose TLV7044DR only if open-drain functionality or extended supply range is mandatory; TLV3494AIDRG4 offers lower power and simpler interface. |
Compared with TLV3494IPWR and TLV7044DR, TLV3494AIDRG4 delivers superior thermal performance in SOIC packaging and eliminates external pull-up components via its push-pull output - reducing both power consumption and component count in space-constrained, battery-operated systems.
Availability
TLV3494AIDRG4 is available at Aetrix Electronics and suitable for portable medical equipment, wireless security systems, handheld instruments, and ultra-low-power IoT nodes requiring stable component supply across long production lifecycles.
Supply support for TLV3494AIDRG4 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 signal chain and low-power design.
The TLV349x product line was engineered specifically for nanopower, rail-to-rail sensing in battery-constrained applications - delivering reliable threshold detection with minimal impact on system energy budget.
FAQ
What is the maximum operating temperature for TLV3494AIDRG4?
The TLV3494AIDRG4 is rated for operation from –40°C to +125°C ambient temperature. Its SOIC package exhibits a junction-to-ambient thermal resistance (RθJA) of 83.8°C/W, allowing sustained operation at full specification within this range when PCB layout follows TI's recommended decoupling and grounding guidelines.
Does TLV3494AIDRG4 require external pull-up resistors on its outputs?
No, TLV3494AIDRG4 does not require external pull-up resistors because it features a push-pull CMOS output stage. Each of its four outputs actively drives high or low, enabling direct interface with 1.8-V logic families and eliminating standby current through external resistors - a key advantage over open-drain comparators like TLV7044DR.
Can TLV3494AIDRG4 operate from a single 1.8-V supply?
Yes, TLV3494AIDRG4 is fully specified to operate from a single 1.8-V supply, with guaranteed performance across –40°C to +125°C. Its rail-to-rail input range extends 200 mV beyond both supply rails, and its push-pull output swings within 200 mV of V+ and V− - making it ideal for direct use with two-cell alkaline or single Li-ion battery systems.
What is the input offset voltage specification for TLV3494AIDRG4?
The TLV3494AIDRG4 has a maximum input offset voltage of ±15 mV at TA = 25°C, with a drift of ±12 µV/°C over –40°C to +125°C. This defines the smallest detectable voltage difference between its inputs without external calibration, supporting precision threshold detection in battery voltage monitoring and sensor fault detection circuits.
How many independent comparators are integrated in TLV3494AIDRG4?
TLV3494AIDRG4 integrates four fully independent comparators in a single 14-pin SOIC package. Each channel has dedicated inverting and noninverting inputs and a push-pull output - enabling simultaneous monitoring of four separate analog signals, such as multiple sensor thresholds or supply rail monitors, without crosstalk or shared bias paths.
TLV3494AIDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- CMOS, Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 1.8V ~ 5.5V
- :
- 15mV @ 5.5V
- Voltage - Input Offset (Max):
- 10pA @ 5.5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 1.2µA
- Current - Quiescent (Max):
- 74dB CMRR, 69.12dB PSRR
- CMRR, PSRR (Typ):
- 13.5µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOIC
TLV3494AIDRG4 FAQ
1.How can I place an order for TLV3494AIDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV3494AIDRG4 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 TLV3494AIDRG4 reliable?
The price and inventory of TLV3494AIDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV3494AIDRG4 is usually 5 days.
3.What payment methods are accepted for TLV3494AIDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV3494AIDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV3494AIDRG4?
TLV3494AIDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV3494AIDRG4 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 TLV3494AIDRG4?
For technical support, including TLV3494AIDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV3494AIDRG4 requirements.
6.How does Aetrix verify that TLV3494AIDRG4 is sourced from the original manufacturer or authorized distributors?
All TLV3494AIDRG4 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 TLV3494AIDRG4 meets industry standards.
7.What is the process for return or replacement of TLV3494AIDRG4?
All TLV3494AIDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV3494AIDRG4, 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 TLV3494AIDRG4 part is unused and in its original packaging.
Return procedure for TLV3494AIDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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