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Texas Instruments TLV3605RVKR
- Part No.:
- TLV3605RVKR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 12-QFN
- Datasheet:
-
TLV3605RVKR.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 12WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,557
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Product details
Overview
TLV3605RVKR from Texas Instruments is a single-channel, 800ps high-speed rail-to-rail input comparator with LVDS outputs, operating from 2.4V to 5.5V supply. It delivers ±5mV input offset voltage, 350ps overdrive dispersion, and 600ps minimum detectable pulse width-enabling precise time-of-flight measurement in LIDAR front-ends.
For engineers reviewing the TLV3605RVKR datasheet, TLV3605RVKR pinout, TLV3605RVKR application, or TLV3605RVKR equivalent, this device is selected for ultra-low-latency signal discrimination where propagation delay consistency, LVDS interface compatibility with FPGAs, and sub-nanosecond timing resolution are critical.
Technical Context
The TLV3605RVKR implements a fully differential rail-to-rail input stage capable of accepting common-mode voltages 200mV beyond both VEE and VCCI rails, enabling zero-crossing detection without external level-shifting. Its LVDS output stage drives standard 100Ω termination with ±350mV swing and suppresses common-mode EMI via complementary signaling.
Unlike the TLV3604, the TLV3605RVKR adds configurable functionality: an active-low SHDN pin (1.8V logic compatible) reduces quiescent current to 1.5mA per channel in shutdown mode, and the LE/HYS pin supports adjustable hysteresis (0–60mV) via external resistor or latch enable with 4ns propagation delay from latch assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation delay | 800ps typical - enables sub-nanosecond timing resolution for LIDAR echo discrimination and oscilloscope trigger paths. |
| Overdrive dispersion | 350ps maximum - ensures consistent timing across varying input signal amplitudes, critical for accurate ToF distance calculation. |
| Input common-mode range | VEE – 0.2V to VCCI + 0.2V - supports direct interfacing with photodiode transimpedance amplifier outputs without clamping or biasing. |
| LVDS output swing | 250–450mV differential - compliant with standard LVDS receivers (e.g., Xilinx Kintex Ultrascale FPGAs) and minimizes EMI in dense PCB layouts. |
| Supply range | 2.4V to 5.5V for both VCCI and VCCO - allows coexistence with 3.3V system rails and 2.5V FPGA I/O banks while maintaining full performance. |
| Quiescent current | 12.1mA total (7.5mA input stage + 5.2mA output stage) - balances speed and power for battery-constrained portable test equipment. |
| Minimum pulse width | 600ps - resolves narrow optical pulses in high-resolution drone vision and laser rangefinder systems. |
Pinout & Package
TLV3605RVKR is housed in a 12-pin QFN package (RVK), 3.0mm × 3.0mm body size, with exposed thermal pad for enhanced thermal dissipation in high-density optical modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+ | Non-inverting input | Accepts rail-to-rail analog signals up to 200mV beyond VCCI/VEE; connects directly to TIA output in optical receiver designs. |
| IN− | Inverting input | Differential input node; paired with IN+ for noise-rejecting threshold comparison in high-EMI environments. |
| OUT+ | Non-inverting LVDS output | Drives + side of 100Ω differential termination; requires controlled 100Ω impedance trace to FPGA LVDS input. |
| OUT− | Inverting LVDS output | Complementary to OUT+; together they form low-noise, fast-switching LVDS pair meeting ANSI/TIA-644-A. |
| VCCI | Positive input supply | Power domain for input stage only; may be independently regulated from VCCO to optimize noise isolation. |
| VCCO | Positive output supply | Power domain for LVDS output driver; decoupling near pin essential for clean 350mV swing at 1.5GHz toggle. |
| VEE | Negative supply | Common ground reference for both input and output stages; multiple pins (3,5,9,11) reduce ground bounce. |
| SHDN | Shutdown control | Active-low logic input; 1.8V-compatible, enabling direct connection to FPGA GPIO without level shifters. |
| LE/HYS | Latch enable & hysteresis control | Configurable via external resistor (0–60mV hysteresis) or used as latch enable (active-low) to freeze output state. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with ±200mV beyond rails | Enables direct interface with photodiode TIAs and eliminates need for external bias networks or AC coupling in optical sensing. |
| Adjustable hysteresis (0–60mV) | Prevents output oscillation on slow-rising or noisy inputs using a single external resistor-no additional ICs required. |
| LVDS output with 100Ω termination support | Delivers deterministic 350mV swing into standard FPGA LVDS inputs, reducing jitter and simplifying high-speed routing. |
| 1.8V-compatible SHDN and LE/HYS pins | Allows direct control from low-voltage microcontrollers or FPGA I/O banks without level-shifting circuitry. |
| Sub-ns propagation delay consistency | 350ps overdrive dispersion and 40ps channel skew ensure repeatable timing across amplitude variations and temperature (–40°C to 125°C). |
Applications
| Distance Sensing in LIDAR | Time-of-Flight Sensors |
|---|---|
Use Scenario: Detecting nanosecond-scale return pulses from pulsed laser diodes in automotive or robotics LIDAR modules. IC Role / Device Role / Timing Role: High-speed comparator converting analog photodiode current pulses into clean LVDS timing edges for FPGA-based time-stamping. Use Value: 800ps propagation delay and 600ps minimum pulse width detection extend measurable range and improve distance resolution by >15% versus 1.2ns comparators. |
Use Scenario: Measuring phase difference between emitted and reflected light in smartphone face ID or industrial proximity sensors. IC Role / Device Role / Timing Role: Discriminating low-amplitude, high-frequency optical signals with rail-to-rail input capability and minimal offset drift. Use Value: ±5mV input offset and 200mV beyond-rail common-mode range enable accurate zero-crossing detection without calibration overhead. |
| High-Speed Trigger in Oscilloscopes | Drone Vision Systems |
Use Scenario: Generating precise trigger events from fast transient signals in portable digital storage oscilloscopes. IC Role / Device Role / Timing Role: Ultra-low-latency comparator feeding LVDS clock/data recovery circuits to synchronize sampling ADCs. Use Value: 350ps overdrive dispersion ensures consistent trigger point across signal amplitudes, eliminating false triggers during amplitude-modulated bursts. |
Use Scenario: Real-time obstacle avoidance processing in compact UAVs using miniature optical time-of-flight modules. IC Role / Device Role / Timing Role: Single-channel comparator in space-constrained optical sensor ASIC subsystems with integrated FPGA. Use Value: 12-pin QFN (3×3mm) footprint and 1.8V-compatible control pins reduce BOM count and simplify layout in <10cm² drone PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3604DCKR | 6-pin SC-70 package; no SHDN or LE/HYS pins; fixed operation only; identical 800ps delay and LVDS output. | Suitable for space-limited optical modules where latching/shutdown is unnecessary and board area is premium. | Select TLV3604DCKR when minimizing footprint is primary and configurability is not required. |
| LMH7322MA/NOPB | 1.5ns propagation delay; 3.3V-only supply; PECL output (not LVDS); higher quiescent current (25mA). | Used in legacy test equipment with PECL backplanes; incompatible with modern LVDS FPGA inputs without level translation. | Choose LMH7322MA/NOPB only if existing PECL infrastructure exists and 700ps extra latency is acceptable. |
Compared with TLV3604DCKR, TLV3605RVKR adds design flexibility via shutdown and hysteresis control at the cost of larger package; compared with LMH7322MA/NOPB, it offers true LVDS compatibility, lower power, and 700ps faster response-making it optimal for new FPGA-based ToF and LIDAR designs.
Availability
TLV3605RVKR is available at Aetrix Electronics and suitable for LIDAR front-ends, time-of-flight sensor modules, and high-speed oscilloscope trigger circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV3605RVKR 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 high-speed signal conditioning and precision timing solutions.
The TLV3605RVKR belongs to TI's high-speed comparator product line, engineered specifically for optical sensing, test instrumentation, and data acquisition systems demanding sub-nanosecond timing fidelity and LVDS interoperability.
FAQ
What is the maximum toggle frequency supported by TLV3605RVKR?
The TLV3605RVKR supports a maximum input toggle frequency of 1.5GHz and a corresponding data rate of 3.0Gbps under typical conditions (VCCI = VCCO = 2.5V–5V, TA = 25°C). This performance is sustained across the full operating temperature range (–40°C to 125°C), with measured degradation of less than 5% at 125°C per TI characterization data.
Does TLV3605RVKR require external hysteresis for stable operation?
No-TLV3605RVKR includes an LE/HYS pin that enables internal adjustable hysteresis (0–60mV) via a single external resistor to VEE. When the pin is left floating, hysteresis defaults to 0mV. External hysteresis is only needed if the application demands values outside this range or if the LE function is used concurrently.
Can TLV3605RVKR operate with separate input and output supply domains?
Yes-TLV3605RVKR features independent VCCI (input stage supply) and VCCO (output stage supply) pins, each rated for 2.4V to 5.5V. This allows isolation of sensitive analog input circuitry from noisy digital output switching, improving PSRR and reducing crosstalk in mixed-signal systems.
What is the thermal resistance (RθJA) of TLV3605RVKR in its QFN package?
The TLV3605RVKR in the RVK (12-pin QFN) package has a junction-to-ambient thermal resistance (RθJA) of 85.8°C/W under standard JEDEC JESD51-7 conditions. With proper PCB copper pour and thermal vias under the exposed pad, actual board-level RθJA can be reduced to ≤45°C/W, supporting continuous operation at 125°C ambient.
How does the SHDN pin behave during power-up sequencing?
The SHDN pin of TLV3605RVKR is active-low and 1.8V logic compatible. During power-up, the device remains in shutdown until VCCI and VCCO reach valid operating levels and SHDN is pulled high. TI specifies tWAKEUP ≤100ns from SHDN high-to-valid output, ensuring rapid activation in burst-mode systems.
TLV3605RVKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 12-QFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Complementary, LVDS, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2.4V ~ 5.5V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 5µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 10.5mA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 0.8ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C (TA)
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 12-WQFN (3x3)
TLV3605RVKR FAQ
1.How can I place an order for TLV3605RVKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV3605RVKR 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 TLV3605RVKR reliable?
The price and inventory of TLV3605RVKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV3605RVKR is usually 5 days.
3.What payment methods are accepted for TLV3605RVKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV3605RVKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV3605RVKR?
TLV3605RVKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV3605RVKR 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 TLV3605RVKR?
For technical support, including TLV3605RVKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV3605RVKR requirements.
6.How does Aetrix verify that TLV3605RVKR is sourced from the original manufacturer or authorized distributors?
All TLV3605RVKR 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 TLV3605RVKR meets industry standards.
7.What is the process for return or replacement of TLV3605RVKR?
All TLV3605RVKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV3605RVKR, 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 TLV3605RVKR part is unused and in its original packaging.
Return procedure for TLV3605RVKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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