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Analog Devices Inc. LTC6752IUD-3#TRPBF
- Part No.:
- LTC6752IUD-3#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 12-WFQFN Exposed Pad
- Datasheet:
-
LTC6752IUD-3#TRPBF.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 12QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,689
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Product details
Overview
LTC6752IUD-3#TRPBF from Analog Devices is a high-speed rail-to-rail input comparator with CMOS outputs, 280MHz toggle rate, 2.9ns propagation delay, and 1.2ns rise/fall times. It features separate input (2.45V–5.25V) and output (1.71V–3.5V) supplies, adjustable hysteresis, latch control, complementary outputs, and operates across –40°C to +85°C in a 12-lead 3mm × 3mm QFN package - ideal for clock/data recovery and high-speed line receivers.
For engineers reviewing the LTC6752IUD-3#TRPBF datasheet, LTC6752IUD-3#TRPBF pinout, LTC6752IUD-3#TRPBF application, or LTC6752IUD-3#TRPBF equivalent, this device supports critical timing functions requiring low overdrive dispersion (1.8ns), sub-5ps RMS jitter at 100MHz, and robust common-mode rejection (≥50dB) in space-constrained industrial and communications systems.
Technical Context
The LTC6752IUD-3#TRPBF implements a dual-supply architecture with independent VCC/VEE (input stage) and VDD/VEE (output stage), enabling direct interfacing to 1.8V logic while accepting wide-range analog inputs up to 5.25V. Its internal latch and LE/HYST pin allow configurable hysteresis (4.7–40mV) and synchronous output capture.
This variant belongs to the LTC6752-3 subfamily: it integrates complementary outputs (Q and Q̅), shutdown capability, latching, and adjustable hysteresis - all in the UD (3mm × 3mm QFN) package with exposed VEE pad. Propagation delay skew is specified at 400ps, and toggle rate remains 230MHz under 5V/1.8V supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Toggle Rate | 230MHz at VCC = 5V, VDD = 1.8V - supports high-frequency clock recovery and serial data slicing. |
| Propagation Delay | 3.4ns typical (VOVERDRIVE = 50mV) - enables precise timing alignment in sub-nanosecond-critical paths. |
| Rise/Fall Time | 1.25ns (10%–90%) - ensures clean, fast edge transitions into CMOS loads without ringing. |
| Input Hysteresis | 4.7mV (LE/HYST floating); up to 40mV (LE/HYST = 800mV) - suppresses noise-induced false triggering in noisy environments. |
| Supply Range | VCC–VEE: 2.45V–5.25V; VDD–VEE: 1.71V–3.5V - allows mixed-voltage system integration (e.g., 5V analog front-end + 1.8V digital back-end). |
| RMS Jitter | 4.3ps at fIN = 100MHz - meets stringent phase-noise requirements in SERDES and RF sampling clocks. |
| Common-Mode Rejection | ≥53dB (LVCM region), ≥53dB (full range) - maintains accuracy despite large common-mode transients on differential inputs. |
Pinout & Package
Package: 12-lead (3mm × 3mm) plastic QFN with exposed VEE pad (Pin 13), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 12 | VEE | Ground reference for both input and output stages; exposed pad must be soldered to PCB for thermal and electrical integrity. |
| 2, 3 | VCC, VDD | Separate supplies: VCC powers input stage (2.45–5.25V); VDD powers CMOS output stage (1.71–3.5V). |
| 4, 11 | +IN, –IN | Differential analog inputs with rail-to-rail operation (VEE – 0.2V to VCC + 0.1V) and 6.4MΩ common-mode resistance. |
| 5, 10 | Q, Q̅ | Complementary CMOS outputs capable of ±22mA drive - eliminates need for external inverters in latch-based sampling. |
| 6, 9 | SHDN, LE/HYST | SHDN enables low-power shutdown (≤660µA total current); LE/HYST configures latch mode or adjusts hysteresis voltage. |
| 7, 8 | NC, NC | No-connect pins - left unconnected per design; no internal function or routing. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable hysteresis via LE/HYST pin | Hysteresis voltage scalable from 4.7mV to 40mV using external resistor - eliminates need for discrete hysteresis networks. |
| Complementary CMOS outputs | Matched Q/Q̅ outputs with <400ps skew - simplifies differential clock distribution and reduces layout asymmetry. |
| Latch-enabled output capture | LE/HYST pin controls transparent latch mode with 2ns hold time - enables synchronous sampling of high-speed events. |
| Ultra-low overdrive dispersion | 1.8ns variation across 10–125mV overdrive - ensures consistent timing margins regardless of signal amplitude. |
| Wide common-mode input range | Operates from VEE – 0.2V to VCC + 0.1V - accommodates mismatched source/receiver DC offsets in LVDS and CML interfaces. |
Applications
| High-Speed Clock Recovery | Time-of-Flight Measurement |
|---|---|
|
Use Scenario: Extracting clean clock signals from jittery or attenuated high-frequency serial data streams in optical transceivers. IC Role / Device Role / Timing Role: Comparator acting as zero-crossing detector with sub-3ns delay and 4.3ps jitter to regenerate low-jitter clocks. Use Value: Enables 10+ Gbps data recovery by maintaining deterministic timing alignment between input edges and regenerated clock edges. |
Use Scenario: Measuring precise time intervals between laser pulse emission and reflected signal return in LIDAR systems. IC Role / Device Role / Timing Role: High-speed comparator capturing leading-edge transitions with 1.25ns rise time and 3.4ns propagation delay. Use Value: Achieves ≤10ps time resolution per stage, directly improving distance measurement accuracy to <2mm at 300m range. |
| High-Speed Line Receiver | Window Comparator for Sensor Thresholding |
|
Use Scenario: Receiving differential high-speed signals (e.g., LVDS, CML) in test equipment where common-mode noise exceeds 1V. IC Role / Device Role / Timing Role: Rail-to-rail input comparator with 53dB CMRR and 6.4MΩ common-mode resistance rejecting power-supply and EMI noise. Use Value: Maintains valid decision thresholds despite large common-mode transients, eliminating false triggers in noisy factory-floor environments. |
Use Scenario: Monitoring analog sensor outputs (e.g., temperature, pressure) against upper/lower limits in industrial PLCs. IC Role / Device Role / Timing Role: Dual-comparator configuration using Q/Q̅ outputs to generate IN_WINDOW and OUT_OF_RANGE flags. Use Value: Adjustable hysteresis prevents chatter near threshold crossings, reducing microcontroller interrupt load and firmware complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADCMP603BRMZ-REEL | Single-supply only (2.5–5.5V); no separate VDD; no latch or adjustable hysteresis; 2.5ns delay; 250MHz toggle rate. | Lacks dual-supply flexibility and configurability - suitable only for simpler, fixed-threshold detection. | Select when board space is constrained and system uses uniform 3.3V/5V rails without need for 1.8V logic interfacing. |
| TLV3501CDR | 3.5ns delay; 4.5ns overdrive dispersion; no complementary outputs; no latch; 200MHz toggle rate; 2.7–5.5V single supply. | Lower speed and no hysteresis control - limited to moderate-speed threshold detection with external hysteresis. | Choose for cost-sensitive designs where jitter <10ps and sub-3ns delay are not required. |
Compared with ADCMP603BRMZ-REEL and TLV3501CDR, the LTC6752IUD-3#TRPBF delivers superior timing precision (230MHz toggle, 3.4ns delay, 4.3ps jitter), dual-supply interoperability, and on-chip configurability - making it the only option supporting latch-synchronized sampling and adaptive hysteresis in compact QFN layouts.
Availability
LTC6752IUD-3#TRPBF is available at Aetrix Electronics and suitable for high-speed clock recovery, time-of-flight sensing, and industrial line receiver applications requiring stable component supply, extended temperature support (–40°C to +85°C), and RoHS-compliant packaging.
Supply support for LTC6752IUD-3#TRPBF 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
Analog Devices, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, communications, and industrial systems.
The LTC6752 family was designed specifically for ultra-high-speed timing-critical applications including clock/data recovery, high-resolution time-domain reflectometry, and LIDAR time-of-flight measurement - emphasizing low jitter, minimal propagation delay variation, and robust noise immunity.
FAQ
What is the operating temperature range for the LTC6752IUD-3#TRPBF?
The LTC6752IUD-3#TRPBF is rated for operation from –40°C to +85°C, as confirmed by its "I" grade designation and full characterization across this range in the datasheet's Electrical Characteristics tables. This makes it suitable for commercial and industrial environments where ambient temperatures remain within these bounds.
Does the LTC6752IUD-3#TRPBF support separate input and output supplies?
Yes, the LTC6752IUD-3#TRPBF supports independent input (VCC–VEE) and output (VDD–VEE) supplies: VCC–VEE ranges from 2.45V to 5.25V, and VDD–VEE from 1.71V to 3.5V. This architecture allows direct interfacing with 1.8V logic while accepting higher-voltage analog inputs - a key feature of the LTC6752-3 variant.
How is hysteresis configured on the LTC6752IUD-3#TRPBF?
Hysteresis on the LTC6752IUD-3#TRPBF is configured via the LE/HYST pin: when left floating, it provides 4.7mV nominal hysteresis; applying 800mV to this pin increases hysteresis to 40mV. The pin also serves as a latch enable - asserting it low captures and holds the output state synchronously.
What is the significance of the exposed pad (Pin 13) on the LTC6752IUD-3#TRPBF?
Pin 13 is the exposed thermal pad of the LTC6752IUD-3#TRPBF QFN package and is internally connected to VEE. It must be soldered to a PCB copper pour tied to the system ground plane to ensure proper thermal dissipation (θJA = 68°C/W) and stable reference potential - failure to do so risks thermal runaway and degraded jitter performance.
Can the LTC6752IUD-3#TRPBF be used in single-supply configurations?
No - the LTC6752IUD-3#TRPBF is exclusively a dual-supply device (VCC and VDD). Unlike the base LTC6752 or LTC6752-1 variants, the "-3" suffix denotes mandatory separate input/output supplies, latch functionality, and complementary outputs. Attempting single-supply operation violates Absolute Maximum Ratings and will result in undefined behavior.
LTC6752IUD-3#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 12-WFQFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- CMOS
- Voltage - Supply, Single/Dual (±):
- 2.45V ~ 5.25V
- :
- 5.5mV @ 5V
- Voltage - Input Offset (Max):
- 1.6µA @ 5V
- Current - Input Bias (Max):
- 19mA @ 5V
- Current - Output (Typ):
- 2.65mA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 5.3ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 12-QFN (3x3)
LTC6752IUD-3#TRPBF FAQ
1.How can I place an order for LTC6752IUD-3#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6752IUD-3#TRPBF 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 LTC6752IUD-3#TRPBF reliable?
The price and inventory of LTC6752IUD-3#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6752IUD-3#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6752IUD-3#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6752IUD-3#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6752IUD-3#TRPBF?
LTC6752IUD-3#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6752IUD-3#TRPBF 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 LTC6752IUD-3#TRPBF?
For technical support, including LTC6752IUD-3#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6752IUD-3#TRPBF requirements.
6.How does Aetrix verify that LTC6752IUD-3#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6752IUD-3#TRPBF 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 LTC6752IUD-3#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6752IUD-3#TRPBF?
All LTC6752IUD-3#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6752IUD-3#TRPBF, 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 LTC6752IUD-3#TRPBF part is unused and in its original packaging.
Return procedure for LTC6752IUD-3#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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