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Analog Devices Inc. LT1715CMS#TRPBF
- Part No.:
- LT1715CMS#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LT1715CMS#TRPBF.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 10MSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LT1715CMS#TRPBF from Analog Devices (formerly Linear Technology) is an ultrafast dual comparator with independent input and output supply rails, enabling flexible level translation between analog sensing domains and digital logic domains. It delivers 4ns propagation delay at 20mV overdrive, 150MHz toggle frequency, rail-to-rail TTL/CMOS-compatible outputs, and operates across –40°C to 85°C. It is used in high-speed differential line receivers and crystal oscillator circuits where precise timing and voltage domain isolation are critical.
For engineers reviewing the LT1715CMS#TRPBF datasheet, LT1715CMS#TRPBF pinout, LT1715CMS#TRPBF application, or LT1715CMS#TRPBF equivalent, key selection considerations include its dual-channel 4ns propagation delay, separate VCC/VEE and +VS/GND supply domains, internal 4mV hysteresis, MSOP-10 package layout optimized for high-speed signal integrity, and guaranteed performance over industrial temperature range.
Technical Context
The LT1715CMS#TRPBF implements a PNP-input differential pair architecture with internal hysteresis and symmetric rail-to-rail output drivers. Its dual independent supply domains isolate analog input common-mode range (VEE – 0.1V to VCC – 1.2V) from output logic levels (+VS and GND), supporting configurations like ±5V input with 3V output or single 5V operation.
Propagation delay skew between channels is ≤1.5ns, differential delay ≤1ns, and output rise/fall times are each 2ns into 10pF. Channel interaction is minimized by physical pin separation-inputs (Pins 1–4) are shielded from outputs (Pins 7–8) by power rails (Pins 5, 6, 9, 10)-and validated via layout guidelines specifying ground trace shielding under the device.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 4ns typical at 20mV overdrive - enables sub-5ns timing-critical decisions in sampling circuits and delay lines. |
| Toggle Frequency | 150MHz maximum - supports clean 100MHz clock/data reception in high-speed line receiver applications. |
| Input Supply Range | VCC – VEE = 2.7V to 12V - allows ±5V, 12V single-ended, or asymmetric analog front-end biasing. |
| Output Supply Range | +VS = 2.7V to 6V - ensures compatibility with 3V or 5V logic families without level-shifting circuitry. |
| Input Common-Mode Range | VEE – 0.1V to VCC – 1.2V - permits inputs 100mV below negative rail, critical for ground-referenced sensors. |
| Internal Hysteresis | 4mV typical - suppresses chatter on slow-moving signals without external components. |
| Supply Current | 4.6mA per comparator at 3V - balances speed and power for battery-aware or thermally constrained designs. |
Pinout & Package
The LT1715CMS#TRPBF is housed in a 10-pin MSOP package (3mm × 3mm, 0.5mm pitch), optimized for high-frequency layout: sensitive inputs are physically isolated from outputs by adjacent power rails (VEE, GND, +VS, VCC), minimizing parasitic coupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 1) | Noninverting input of Comparator A | Accepts analog signals up to VCC – 1.2V; referenced to VEE for wide common-mode range. |
| –IN A (Pin 2) | Inverting input of Comparator A | Paired with +IN A for differential threshold detection; internal hysteresis applies across both trip points. |
| –IN B (Pin 3) | Inverting input of Comparator B | Independent channel input; identical electrical behavior to –IN A but electrically isolated. |
| +IN B (Pin 4) | Noninverting input of Comparator B | Enables dual-window or complementary threshold detection without shared bias networks. |
| VEE (Pin 5) | Negative supply for input stage and substrate | Sets lower bound of analog input range; must be ≤ GND; enables negative-rail operation. |
| GND (Pin 6) | Ground reference for output stage | Return path for +VS-driven outputs; layout best practice separates this from analog ground. |
| OUT B (Pin 7) | Output of Comparator B | Rail-to-rail CMOS/TTL-compatible swing (0.4V low / +VS – 0.4V high); drives 10pF load in 2ns. |
| OUT A (Pin 8) | Output of Comparator A | Matched timing to OUT B (skew ≤1.5ns); supports synchronous dual-channel decision logic. |
| +VS (Pin 9) | Positive supply for output stage | Determines logic-high level; independent of VCC, enabling level translation (e.g., 5V input → 3V output). |
| VCC (Pin 10) | Positive supply for input stage | Sets upper bound of analog input range; decoupled from +VS to prevent supply crosstalk. |
Key Features
| Feature | Design Value |
|---|---|
| UltraFast 4ns propagation delay | Enables real-time response in 100MHz+ data acquisition, sampling, and clock recovery systems. |
| Separate input/output supplies | Eliminates need for external level shifters when interfacing ±5V sensors to 3V microcontrollers. |
| Pinout optimized for high-speed use | Input pins (1–4) flanked by VEE (5) and GND (6), then outputs (7–8) flanked by +VS (9) and VCC (10) - reduces crosstalk by >20dB vs conventional layouts. |
| Rail-to-rail TTL/CMOS-compatible outputs | Drives standard logic families directly; VOH = +VS – 0.4V and VOL = 0.4V at 4mA/10mA loads ensure noise margin compliance. |
| Internal hysteresis with specified limits | Guaranteed 2–7mV hysteresis prevents false triggering on noisy or slowly varying inputs without external feedback. |
Applications
| High-Speed Differential Line Receiver | Level Translator |
|---|---|
|
Use Scenario: Receiving 100MHz clock and 50MHz data signals with 25mVP-P amplitude over twisted-pair or coaxial cable in telecom or test equipment. IC Role / Device Role / Timing Role: Dual comparator acting as high-fidelity differential receiver with matched propagation paths for clock and data channels. Use Value: 4ns delay matching and ≤1ns differential delay preserve setup/hold timing margins; 150MHz toggle rate ensures error-free toggling at target frequencies. |
Use Scenario: Converting a –5.2V to 0V analog sensor output into a 0V to 3V logic signal for an MCU with 3V I/O. IC Role / Device Role / Timing Role: Input stage powered from –5.2V/0V (VEE/GND), output stage from 0V/3V (GND/+VS) - true bidirectional level translation. Use Value: Eliminates discrete MOSFET translators; input common-mode extends 100mV below VEE, enabling direct connection to negative-referenced sources. |
| Crystal Oscillator Circuit | Threshold Detector/Discriminator |
|
Use Scenario: Sustaining oscillation in a Pierce-gate crystal oscillator with fast edge generation and low phase jitter. IC Role / Device Role / Timing Role: Comparator provides gain and zero-crossing detection in feedback loop; rail-to-rail outputs drive crystal load capacitance directly. Use Value: 2ns rise/fall times minimize harmonic distortion; internal hysteresis stabilizes startup without external components; <15ps RMS jitter preserves spectral purity. |
Use Scenario: Detecting overvoltage/undervoltage conditions in a 12V power rail using precision resistive divider and reference. IC Role / Device Role / Timing Role: One comparator channel monitors high-threshold (e.g., 12.5V), the other low-threshold (e.g., 11.5V) - forming a window detector. Use Value: Independent supplies allow VCC/VEE to match divider range (e.g., 15V/0V), while +VS/GND set logic output to 5V/0V for controller interface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1720IMS8#TRPBF | Single-supply only (2.7V–6V); no separate input/output rails; 4.5ns delay; 100MHz toggle. | Lacks level translation capability; requires shared VCC/GND for input and output; suited for 3V/5V-only systems. | Select when board space is constrained (MSOP-8) and dual supply isolation is unnecessary. |
| LT1719CS6#TRMPBF | Single comparator; 4.5ns delay; 200MHz toggle; same input/output supply separation; SOT-23-6. | Half the channel count; higher toggle rate but no dual-channel correlation; smaller footprint. | Select when only one high-speed comparison path is needed and PCB area is premium. |
Compared with LT1715CMS#TRPBF, LT1720IMS8#TRPBF sacrifices supply-domain flexibility for compactness, while LT1719CS6#TRMPBF trades channel count for higher toggle frequency and smaller size - neither offers the LT1715CMS#TRPBF's combination of dual-channel timing matching, independent rail control, and 150MHz operation in MSOP-10.
Availability
LT1715CMS#TRPBF is available at Aetrix Electronics and suitable for high-speed sampling circuits, crystal oscillator stabilization, and differential line receiver designs requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for LT1715CMS#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and power management semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LT1715CMS#TRPBF belongs to Linear's UltraFast™ comparator family, designed specifically for applications demanding sub-5ns decision latency, supply-domain isolation, and robust operation in noisy, high-frequency environments.
FAQ
What is the operating temperature range for the LT1715CMS#TRPBF?
The LT1715CMS#TRPBF is specified for operation from –40°C to +85°C and is tested across this full industrial temperature range. Its electrical characteristics-including 4ns propagation delay, 150MHz toggle frequency, and 4mV hysteresis-are guaranteed within this range, making it suitable for demanding embedded and instrumentation applications where thermal stability is critical.
Can the LT1715CMS#TRPBF operate with a single 5V supply?
Yes, the LT1715CMS#TRPBF can operate with a single 5V supply: tie VCC and +VS together at +5V, and connect VEE and GND together at 0V. This configuration maintains full functionality, including rail-to-rail outputs and internal hysteresis, while simplifying power design. The input common-mode range becomes 0V to 3.8V, and output swing is 0.4V to 4.6V.
How does the LT1715CMS#TRPBF handle input signals below the negative rail?
The LT1715CMS#TRPBF supports input voltages down to VEE – 0.1V. If an input falls below this limit, the internal substrate diode may conduct, increasing bias current. However, phase reversal protection holds output polarity to at least –400mV common mode. For robust negative overdrive recovery, an external Schottky clamp diode from input to VEE is recommended.
What is the maximum load capacitance the LT1715CMS#TRPBF can drive while maintaining 4ns delay?
The LT1715CMS#TRPBF maintains its 4ns typical propagation delay up to 10pF load capacitance. Beyond that, delay increases: at 20pF, tPD rises to ~4.5ns; at 50pF, it reaches ~6ns. For high-speed integrity, keep output traces short (<10cm) and terminate properly-200Ω DC termination or series/AC topologies are recommended to avoid ringing.
Is the LT1715CMS#TRPBF pin-compatible with other comparators in the LT17xx family?
No, the LT1715CMS#TRPBF is not pin-compatible with other LT17xx comparators. Its 10-pin MSOP layout-with dedicated VEE, GND, +VS, and VCC pins-is unique to its dual-channel, dual-supply architecture. The LT1720 (8-pin MSOP) and LT1719 (6-pin SOT-23) use different pinouts and supply configurations, requiring PCB redesign for substitution.
LT1715CMS#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Series:
- UltraFast™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- CMOS, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 12V
- :
- 2.5mV @ ±5V
- Voltage - Input Offset (Max):
- 6µA @ ±5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 2mA
- Current - Quiescent (Max):
- 70dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 9ns
- Propagation Delay (Max):
- 6mV
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 10-MSOP
LT1715CMS#TRPBF FAQ
1.How can I place an order for LT1715CMS#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1715CMS#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 LT1715CMS#TRPBF reliable?
The price and inventory of LT1715CMS#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1715CMS#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1715CMS#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1715CMS#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1715CMS#TRPBF?
LT1715CMS#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1715CMS#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 LT1715CMS#TRPBF?
For technical support, including LT1715CMS#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1715CMS#TRPBF requirements.
6.How does Aetrix verify that LT1715CMS#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1715CMS#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 LT1715CMS#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1715CMS#TRPBF?
All LT1715CMS#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1715CMS#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 LT1715CMS#TRPBF part is unused and in its original packaging.
Return procedure for LT1715CMS#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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