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Analog Devices Inc. LT1715IMS#TRPBF
- Part No.:
- LT1715IMS#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LT1715IMS#TRPBF.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,469
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Product details
Overview
LT1715IMS#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 LT1715IMS#TRPBF datasheet, LT1715IMS#TRPBF pinout, LT1715IMS#TRPBF application, or LT1715IMS#TRPBF equivalent, this page provides verified technical context, validated pin functions, real-world design meaning of key specs, and confirmed alternative options for dual high-speed comparators with separate input/output supplies.
Technical Context
The LT1715IMS#TRPBF implements a PNP-input differential stage with internal 4mV hysteresis, enabling stable operation with slow-moving inputs without external feedback. Its dual-channel architecture features fully independent input stages (powered by VCC and VEE) and output stages (powered by +VS and GND), allowing simultaneous operation across mismatched voltage domains - e.g., ±5V analog front-end and 3V logic interface.
Propagation delay skew between channels is specified ≤1.5ns, and differential propagation delay ≤1ns, supporting matched timing in dual-path applications like window comparators or clock/data recovery. Input common-mode range extends from VEE – 0.1V to VCC – 1.2V, and rail-to-rail outputs drive TTL/CMOS loads with symmetric rise/fall times (~2ns each).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 4ns typical at 20mV overdrive - enables sub-5ns decision latency in high-speed sampling or clock edge detection. |
| Toggle Frequency | 150MHz maximum - supports reliable operation in 100MHz differential line receiver applications with 25mVP-P inputs. |
| Input Supply Range | VCC – VEE = 2.7V to 12V - allows use with ±5V, 12V single-ended, or split-rail analog signal chains. |
| Output Supply Range | +VS = 2.7V to 6V - compatible 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 in negative-supply systems. |
| Internal Hysteresis | 2–7mV (varies by grade) - eliminates oscillation on noisy or slowly slewing signals without external components. |
| Supply Current per Comparator | 4.6mA at 3V (input + output stages combined) - balances speed and power for battery-sensitive or thermally constrained designs. |
Pinout & Package
The LT1715IMS#TRPBF is housed in a 10-pin MSOP package (3mm × 3mm, 0.5mm pitch), optimized for high-speed layout with power rails shielding sensitive inputs from outputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 1) | Noninverting input of Comparator A | Accepts analog signals up to VCC – 1.2V; must remain within common-mode range for valid comparison. |
| –IN A (Pin 2) | Inverting input of Comparator A | Paired with +IN A; differential input pair referenced to VEE and VCC rails. |
| –IN B (Pin 3) | Inverting input of Comparator B | Independent of Channel A; enables dual-threshold or differential pair detection. |
| +IN B (Pin 4) | Noninverting input of Comparator B | Supports asynchronous or mirrored sensing; pinout isolates from OUT A/B to reduce crosstalk. |
| VEE (Pin 5) | Negative supply for input stage and substrate | Must be ≤ GND; sets lower bound of input common-mode range and enables negative-rail operation. |
| GND (Pin 6) | Ground reference for output stage | Separate from VEE; decoupling here minimizes switching noise coupling into input stage. |
| OUT B (Pin 7) | Output of Comparator B | Rail-to-rail CMOS/TTL-compatible; drives loads up to ±20mA with <2ns rise/fall times. |
| OUT A (Pin 8) | Output of Comparator A | Electrically isolated from OUT B in layout; low skew (<1.5ns) enables time-critical dual-path logic. |
| +VS (Pin 9) | Positive supply for output stage | Determines VOH/VOL levels; independent of VCC allows 3V logic interfacing while input runs at ±5V. |
| VCC (Pin 10) | Positive supply for input stage | Sets upper bound of input common-mode range; tied to +VS only in single-supply configurations. |
Key Features
| Feature | Design Value |
|---|---|
| UltraFast 4ns propagation delay | Enables sub-5ns decision latency in high-speed sampling circuits and clock/data recovery paths. |
| Independent input/output supplies | Allows analog input domain (e.g., ±5V sensor signal) and digital output domain (e.g., 3V FPGA I/O) to operate concurrently without level shifters. |
| Rail-to-rail TTL/CMOS-compatible outputs | Directly interfaces to 3V/5V logic families; symmetric rise/fall times simplify timing budgeting in synchronous systems. |
| Internal hysteresis with specified limits | 2–7mV hysteresis prevents chatter on slow or noisy inputs - no external feedback required for stability. |
| Optimized 10-pin MSOP pinout | Power rails (VEE, VCC, +VS, GND) shield inputs from outputs, reducing parasitic coupling and improving >100MHz channel isolation. |
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 lines. IC Role / Device Role / Timing Role: Dual comparator acting as differential receiver with independent input biasing and rail-to-rail output swing. Use Value: Achieves clean 100MHz toggling with <15ps RMS jitter (single-channel active), meeting JEDEC setup/hold timing for high-speed serial links. |
Use Scenario: Converting a –5.2V to 0V analog threshold signal into a 0V to 3V logic-level output for microcontroller GPIO. IC Role / Device Role / Timing Role: Comparator with VEE = –5.2V, VCC = 0V, +VS = 3V, GND = 0V - enabling negative-domain sensing and positive-domain logic output. Use Value: Eliminates discrete level-shifter ICs or resistor-divider + buffer combinations, reducing BOM count and board area. |
| Crystal Oscillator Circuit | Window Comparator |
|
Use Scenario: Sustaining oscillation in Pierce-type crystal oscillator using fast zero-crossing detection and gain control. IC Role / Device Role / Timing Role: One comparator monitors crystal node; second provides hysteresis-controlled feedback path for loop gain regulation. Use Value: 4ns delay and low input offset (≤3.5mV) ensure stable startup and low-phase-noise oscillation at fundamental frequencies up to 150MHz. |
Use Scenario: Monitoring battery voltage to trigger low-battery warning when falling below 3.3V and disable charging above 4.2V. IC Role / Device Role / Timing Role: Dual comparator configured as upper/lower threshold detector with shared reference and independent hysteresis. Use Value: Internal hysteresis prevents false triggering near thresholds; independent supplies allow reference generation from stable 2.5V bandgap while monitoring 0–4.5V battery rail. |
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 VEE/+VS rails; 4.5ns delay; 100MHz toggle frequency. | Limited to unipolar input ranges; cannot interface negative-rail analog signals without external level shifting. | Select when system uses only 3V/5V supplies and requires lower quiescent current (2.8mA/comparator). |
| LT1719CS8#TRPBF | Single comparator; 4.5ns delay; same input/output supply separation; 10-pin MSOP replaced by 8-pin SO. | Requires two devices for dual-channel function; lacks channel-to-channel skew control and matched delay specs. | Select when only one high-speed comparison path is needed and board space favors SO-8 over MSOP-10. |
Compared with LT1715IMS#TRPBF, LT1720IMS8#TRPBF trades supply flexibility for lower power and smaller footprint, while LT1719CS8#TRPBF offers identical architecture in single-channel form - neither provides the matched dual-channel timing, negative-rail input capability, or independent output logic supply of the LT1715IMS#TRPBF.
Availability
LT1715IMS#TRPBF is available at Aetrix Electronics and suitable for high-speed differential line receivers, crystal oscillator circuits, level translators, and window comparators requiring stable component supply across industrial temperature ranges.
Supply support for LT1715IMS#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 acquired Linear Technology in 2017 and maintains full product support, documentation, and manufacturing continuity for the LT® series precision analog ICs.
The LT1715IMS#TRPBF belongs to Linear's UltraFast™ comparator family, designed specifically for applications demanding sub-5ns decision latency, robust operation across mixed-voltage domains, and immunity to input noise without external hysteresis.
FAQ
What is the operating temperature range for the LT1715IMS#TRPBF?
The LT1715IMS#TRPBF is rated for –40°C to +85°C ambient operation and is fully specified across that range for parameters including propagation delay, input offset voltage, and hysteresis. This makes the LT1715IMS#TRPBF suitable for industrial and automotive under-hood applications where thermal stability is essential.
Can the LT1715IMS#TRPBF operate with a single 3.3V supply?
Yes - the LT1715IMS#TRPBF supports single-supply operation by tying VCC and +VS together and connecting VEE and GND. With VCC = +VS = 3.3V and VEE = GND, the input common-mode range becomes –0.1V to 2.1V, and outputs swing rail-to-rail, making the LT1715IMS#TRPBF compatible with 3.3V logic systems without external level translation.
Does the LT1715IMS#TRPBF require external hysteresis for stable operation?
No - the LT1715IMS#TRPBF integrates 4mV of internal hysteresis, specified from 2mV to 7mV depending on grade and conditions. This eliminates the need for external positive feedback in most applications, including threshold detection with slow-moving or noisy inputs. External hysteresis can be added if tighter trip-point control is required.
How is supply sequencing handled on the LT1715IMS#TRPBF?
The LT1715IMS#TRPBF tolerates arbitrary power supply sequencing - VCC, VEE, +VS, and GND may power up or down in any order without latch-up or excessive current draw. This simplifies system power management and eliminates the need for external sequencing circuitry, a key advantage in multi-rail embedded systems.
What layout practices minimize crosstalk between channels on the LT1715IMS#TRPBF?
To minimize inter-channel crosstalk on the LT1715IMS#TRPBF, route input traces away from output traces, place a ground or power trace between them on the top layer, and use dedicated local bypassing: a 10nF ceramic capacitor adjacent to Pins 5 (VEE), 6 (GND), 9 (+VS), and 10 (VCC). The LT1715IMS#TRPBF's pinout inherently shields inputs with power rails, but proper PCB layout remains essential above 100MHz.
LT1715IMS#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:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 10-MSOP
LT1715IMS#TRPBF FAQ
1.How can I place an order for LT1715IMS#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1715IMS#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 LT1715IMS#TRPBF reliable?
The price and inventory of LT1715IMS#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1715IMS#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1715IMS#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1715IMS#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1715IMS#TRPBF?
LT1715IMS#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1715IMS#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 LT1715IMS#TRPBF?
For technical support, including LT1715IMS#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1715IMS#TRPBF requirements.
6.How does Aetrix verify that LT1715IMS#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1715IMS#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 LT1715IMS#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1715IMS#TRPBF?
All LT1715IMS#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1715IMS#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 LT1715IMS#TRPBF part is unused and in its original packaging.
Return procedure for LT1715IMS#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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