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Texas Instruments TL3116IPW
- Part No.:
- TL3116IPW
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TL3116IPW.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,802
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Product details
Overview
TL3116IPW from Texas Instruments is an ultra-fast, dual-supply or single-supply voltage comparator with complementary TTL-compatible outputs, 10 ns typical propagation delay, ±5-V or +5-V operation, and latch-enable functionality for synchronized decision capture in high-speed digital systems.
For engineers reviewing the TL3116IPW datasheet, TL3116IPW pinout, TL3116IPW application, or TL3116IPW equivalent, this page delivers verified electrical specs, thermal performance across −40°C to 85°C, latch timing (3.4 ns setup), input common-mode range extending to negative rail, and real-world design implications for precision threshold detection and clocked comparison.
Technical Context
The TL3116IPW implements a bipolar comparator architecture with differential input stage, active pull-up/pull-down output drivers, and dedicated LATCH ENABLE terminal enabling synchronous sampling of comparator state. Its input stage supports rail-to-rail common-mode operation down to VCC−, critical for ground-referenced sensing.
Propagation delay is tightly specified at 9.9–15 ns over full temperature range (−40°C to 85°C) under ±5-V supply, with pulse skew ≤0.5 ns and no minimum slew rate requirement-enabling reliable operation with slow-rising or low-amplitude signals without external conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation delay | 9.9 ns (min), 15 ns (max) over −40°C to 85°C - ensures sub-100-MHz timing margin in clocked comparators and ADC front-ends. |
| Input offset voltage | 3 mV (typ), 3.5 mV (max) - enables accurate threshold detection within ±3.5 mV error at room and extended temperature. |
| Supply voltage range | ±5 V or +5 V only - supports legacy TTL interface and mixed-signal systems without level-shifting circuitry. |
| Input common-mode range | Extends to VCC− (−5 V) - allows direct sensing of signals referenced to ground or negative rails without bias networks. |
| LATCH ENABLE setup time | 3.4 ns - permits tight synchronization with system clocks up to ~294 MHz (1/3.4 ns), critical for sampled-data acquisition. |
| Output drive capability | ±20 mA sink/source - directly drives TTL inputs, small capacitive loads (<50 pF), or LED indicators without buffer stages. |
| Positive supply current | 12.7 mA (typ), 15 mA (max) at ±5 V - balances speed and power efficiency for battery-sensitive or thermally constrained designs. |
Pinout & Package
TSSOP-8 package (PW), 3.0 mm × 4.4 mm body, 1.2 mm max height, 0.65 mm pitch, RoHS-compliant NiPdAu lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VCC+) | Positive supply rail | Accepts +5 V (single supply) or +5 V (dual supply); must be decoupled locally to suppress noise-induced false triggering. |
| 2 (IN+) | Non-inverting input | Differential input node with 0.7 µA typical bias current; common-mode range includes VCC− for ground-sensing applications. |
| 3 (IN−) | Inverting input | Differential input node; matched to IN+ for <3.5 mV offset; supports hysteresis via external feedback if needed. |
| 4 (VCC−) | Negative supply rail | Accepts −5 V (dual supply) or GND (single supply); sets lower bound of input common-mode range. |
| 5 (Q OUT) | True output (active-high when IN+ > IN−) | Complementary TTL-level output; sinks 10 mA at 750 mV max VOL - compatible with 74LS/ALS logic families. |
| 6 (Q̅ OUT) | Inverted output (active-low when IN+ > IN−) | Complementary to Q OUT; enables direct connection to D-latch or flip-flop clock enable without inverters. |
| 7 (GND) | Ground reference | System ground return for supply and output stages; separate from VCC− in dual-supply mode but tied to it in single-supply configuration. |
| 8 (LATCH ENABLE) | Asynchronous latch control | Active-high TTL-compatible enable; latches Q/Q̅ states on rising edge; requires 3.4 ns setup relative to comparator decision point. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast 10 ns propagation delay | Enables real-time response in high-frequency PWM controllers, laser diode drivers, and analog-to-digital trigger circuits. |
| Input common-mode range to negative rail | Eliminates need for input biasing resistors in ground-referenced sensor interfaces (e.g., current shunt monitoring). |
| Complementary TTL-compatible outputs | Reduces external logic count by providing both true and inverted logic levels simultaneously for latch or multiplexer control. |
| Latch-enable terminal with 3.4 ns setup | Supports deterministic sampling of comparator decisions in synchronous digital systems without metastability risk. |
| Functional replacement for LT1116 | Offers identical pinout and function while reducing supply current by ~40%, easing thermal management in dense layouts. |
Applications
| High-Speed Pulse Width Modulation (PWM) Control | Ground-Referenced Current Sensing |
|---|---|
|
Use Scenario: Comparing ramp generator voltage against error amplifier output to generate variable-duty-cycle PWM signals in DC-DC converters. IC Role / Device Role / Timing Role: Precision threshold detector with sub-10 ns decision latency, driving gate driver logic directly via complementary outputs. Use Value: Enables >1 MHz switching frequencies with minimal dead-time uncertainty and no added propagation delay from external buffers. |
Use Scenario: Monitoring voltage drop across a low-side shunt resistor to detect overcurrent conditions in motor drivers or power supplies. IC Role / Device Role / Timing Role: Rail-to-rail input comparator detecting zero-crossing or threshold breach with input referenced to system ground. Use Value: Eliminates input bias network, reduces component count, and maintains accuracy across −40°C to 85°C ambient. |
| Synchronized Data Acquisition Triggering | TTL-Level Signal Conditioning Interface |
|
Use Scenario: Converting analog sensor outputs (e.g., photodiode pulses) into clean, jitter-free digital triggers for FPGA-based time-of-flight measurement. IC Role / Device Role / Timing Role: High-speed comparator with latch-enable synchronized to system clock for deterministic edge capture. Use Value: Reduces timing uncertainty to <0.5 ns pulse skew, enabling sub-nanosecond resolution in time-critical measurements. |
Use Scenario: Interfacing industrial analog sensors (e.g., 4–20 mA transmitters) to microcontroller GPIOs requiring clean TTL logic levels. IC Role / Device Role / Timing Role: Level translator and signal conditioner delivering robust 0 V / 3.6 V output swing compatible with 5 V-tolerant MCU inputs. Use Value: Provides noise-immune digital interface without external pull-ups, level shifters, or Schmitt triggers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL3116IDR | Same die, SOIC-8 package (D), wider body (3.9 mm), 1.75 mm height, 2500/reel tape-and-reel. | Better thermal mass and hand-solderability; less board-area efficient than TSSOP. | Select TL3116IDR for prototyping, manual assembly, or thermal-heavy environments where TSSOP thermal resistance (4.2 mW/°C derating) is limiting. |
| LT1116CS8#PBF | Pin-compatible predecessor; higher ICC (21 mA typ), slower tpd (15 ns min), same −40°C to 85°C rating. | Legacy drop-in replacement where existing layout uses LT1116 footprint; not recommended for new designs due to power penalty. | Choose LT1116CS8#PBF only for second-source continuity in field-replacement scenarios; TL3116IPW offers superior speed/power trade-off. |
Compared with TL3116IDR, TL3116IPW saves 35% board area and improves thermal response but requires fine-pitch reflow; versus LT1116CS8#PBF, it cuts supply current nearly in half while matching timing performance-making it optimal for space-constrained, power-sensitive high-speed systems.
Availability
TL3116IPW is available at Aetrix Electronics and suitable for high-speed PWM generation, ground-referenced current sensing, synchronized data acquisition triggering, and TTL-level signal conditioning requiring stable component supply across industrial temperature ranges.
Supply support for TL3116IPW 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, embedded processing, and connectivity technologies, with decades of expertise in precision analog ICs and high-speed interface solutions.
The TL3116IPW belongs to TI's high-speed comparator product line, engineered specifically for applications demanding nanosecond-level decision latency, rail-to-rail input operation, and TTL-compatible output drive in industrial and communications infrastructure.
FAQ
What is the operating temperature range for TL3116IPW?
The TL3116IPW is rated for −40°C to +85°C free-air temperature operation, validated per its "I" grade specification. This range is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics section of the SLCS132C datasheet, supporting deployment in industrial control, automotive under-hood, and outdoor equipment environments where thermal stability is critical. The TL3116IPW maintains 9.9–15 ns propagation delay and <3.5 mV offset voltage across this full range.
Does TL3116IPW support single-supply operation?
Yes, TL3116IPW operates from a single +5-V supply, with VCC− connected to GND. In this configuration, the input common-mode voltage range is 0 V to +2.5 V (per Electrical Characteristics table), and outputs swing between 0.4 V (low) and 3.6 V (high) at 1 mA load. The device retains full functionality-including latch-enable and complementary outputs-under single-supply conditions, eliminating need for dual-rail power supplies in many digital interface applications.
What is the purpose of the LATCH ENABLE pin on TL3116IPW?
The LATCH ENABLE pin (Pin 8) is an active-high TTL-compatible control that freezes the instantaneous logic state of Q OUT and Q̅ OUT outputs. When asserted, it captures and holds the comparator decision until the next enable pulse, enabling synchronous sampling in clocked systems. Its 3.4 ns setup time (relative to comparator decision point) ensures deterministic timing alignment with system clocks, making TL3116IPW suitable for data acquisition, digital pattern generation, and event-triggered control loops.
How does TL3116IPW differ from TL3116CPW?
TL3116IPW and TL3116CPW share identical TSSOP-8 packaging and pinout but differ in temperature grade and electrical specifications. TL3116IPW is rated for −40°C to +85°C (I-grade), with maximum input offset voltage of 3.5 mV over temperature and guaranteed 15 ns max propagation delay across that range. TL3116CPW is C-grade (0°C to +70°C), with tighter 3 mV max offset and 14 ns max tpd-making TL3116IPW the appropriate choice for extended-temperature industrial or automotive applications where reliability across thermal extremes is mandatory.
Is TL3116IPW pin-compatible with LT1116?
Yes, TL3116IPW is a pin-for-pin functional replacement for the LT1116 comparator, as explicitly stated in the datasheet: "The TL3116 is a pin-for-pin functional replacement for the LT1116 comparator." Both devices use identical 8-pin SOIC or TSSOP footprints, share matching pin assignments (VCC+, IN+, IN−, VCC−, Q OUT, Q̅ OUT, GND, LATCH ENABLE), and deliver compatible TTL output levels and timing behavior-enabling direct substitution in existing LT1116 designs without PCB modification.
TL3116IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Complementary, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±):
- 5V ~ 10V, ±2.5V ~ 5V
- :
- 3mV @ ±5V
- Voltage - Input Offset (Max):
- 1.1µA @ ±5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 15mA
- Current - Quiescent (Max):
- 100dB CMRR
- CMRR, PSRR (Typ):
- 12ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-TSSOP
TL3116IPW FAQ
1.How can I place an order for TL3116IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TL3116IPW 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 TL3116IPW reliable?
The price and inventory of TL3116IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL3116IPW is usually 5 days.
3.What payment methods are accepted for TL3116IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL3116IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL3116IPW?
TL3116IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL3116IPW 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 TL3116IPW?
For technical support, including TL3116IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL3116IPW requirements.
6.How does Aetrix verify that TL3116IPW is sourced from the original manufacturer or authorized distributors?
All TL3116IPW 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 TL3116IPW meets industry standards.
7.What is the process for return or replacement of TL3116IPW?
All TL3116IPW units undergo pre-shipment inspection (PSI). If there is an issue with TL3116IPW, 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 TL3116IPW part is unused and in its original packaging.
Return procedure for TL3116IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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