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Analog Devices Inc. LT1719CS6#TRMPBF
- Part No.:
- LT1719CS6#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT1719CS6#TRMPBF.pdf
- Description:
- IC COMPARATOR 1 GEN PUR TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,561
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Product details
Overview
LT1719CS6#TRMPBF from Analog Devices (formerly Linear Technology) is an UltraFast™ rail-to-rail output comparator in a 6-lead TSOT-23 package, optimized for low-voltage operation from 2.7V to 6V. It delivers 4.5ns propagation delay at 20mV overdrive, features internal 3.5mV hysteresis, consumes only 4.2mA at 3V supply, and includes shutdown mode drawing just 0.1μA - enabling high-speed threshold detection in battery-powered instrumentation and clock conditioning circuits.
For engineers reviewing the LT1719CS6#TRMPBF datasheet, LT1719CS6#TRMPBF pinout, LT1719CS6#TRMPBF application, or LT1719CS6#TRMPBF equivalent, key selection criteria include its single-supply 2.7–6V operation, guaranteed 4.5ns delay with 20mV overdrive, rail-to-rail TTL/CMOS-compatible output drive, input common-mode range extending 100mV below V–, and validated performance across 0°C to 70°C.
Technical Context
The LT1719CS6#TRMPBF uses a complementary bipolar input stage with PNP differential pair, enabling wide common-mode input range (V– – 0.1V to V+ – 1.2V) and low input offset voltage (2.5mV typ). Its internal hysteresis (3.5mV typ) eliminates oscillation on slow-moving signals without external components.
Output stage employs symmetric rail-to-rail push-pull architecture, delivering VOH = V+ – 0.4V (at 4mA) and VOL = 0.4V (at 10mA), directly compatible with 3V/5V TTL and CMOS logic. Shutdown control (active-high) disables both input and output stages, reducing supply current to <80μA (typ) when SHDN ≥ V+ – 0.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 4.5ns at 20mV overdrive - enables sub-5ns timing-critical decisions in sampling circuits and crystal oscillator feedback paths. |
| Supply Voltage Range | 2.7V to 6V single supply - supports direct integration into 3.3V and 5V systems without level-shifting. |
| Input Common-Mode Range | V– – 0.1V to V+ – 1.2V - allows inputs to operate 100mV below ground reference, critical for precision zero-crossing detection. |
| Output Drive | Rail-to-rail, VOH = V+ – 0.4V (4mA), VOL = 0.4V (10mA) - ensures robust logic-level compatibility with downstream 3V/5V digital interfaces. |
| Hysteresis | 3.5mV typical - provides noise immunity without external feedback, simplifying design of discriminators and threshold detectors. |
| Shutdown Current | 7μA typical at SHDN = V+ – 0.5V - enables ultra-low-power sleep mode in portable and energy-sensitive applications. |
| Operating Temperature | 0°C to 70°C - qualified for commercial-grade embedded systems and industrial control modules. |
Pinout & Package
LT1719CS6#TRMPBF is housed in a 6-lead Plastic TSOT-23 package (1mm profile), optimized for space-constrained PCB layouts. Pin functions are validated per Linear Technology's official datasheet (1719fa, Rev. G).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: –IN | Inverting Input | Differential input node; accepts signals down to V– – 0.1V; bias current flows out of this pin. |
| 2: V– | Negative Supply / Ground Reference | Common return for input stage; typically tied to system ground; defines lower bound of input common-mode range. |
| 3: +IN | Noninverting Input | Differential input node; same voltage range and bias behavior as –IN; used for active-high threshold detection. |
| 4: V+ | Positive Supply | Powers both input and output stages; sets upper rail for rail-to-rail output swing and defines input common-mode ceiling (V+ – 1.2V). |
| 5: OUT | Comparator Output | Rail-to-rail CMOS/TTL-compatible output; drives high to V+ – 0.4V (4mA), low to 0.4V (10mA); no external pull-up required. |
| 6: SHDN | Shutdown Control | Active-high enable; comparator disabled when ≥ V+ – 0.5V; draws <80μA in shutdown; pulled low to enable operation. |
Key Features
| Feature | Design Value |
|---|---|
| UltraFast propagation delay | 4.5ns at 20mV overdrive - enables precise edge timing in high-frequency sampling and delay-line circuits. |
| Single-supply rail-to-rail output | VOH/VOL swing within 400mV of rails at full load - eliminates need for external level translators when interfacing to 3V/5V logic. |
| Integrated hysteresis | 3.5mV typical - prevents chatter on noisy or slowly varying inputs without external resistors or feedback networks. |
| Low-power shutdown mode | 7μA max shutdown current - extends battery life in portable oscilloscopes, data loggers, and handheld test equipment. |
| Wide input common-mode range | Extends 100mV below V– - supports ground-referenced AC-coupled inputs and true zero-crossing detection without level shifters. |
Applications
| High-Speed Sampling Circuits | Crystal Oscillator Circuits |
|---|---|
Use Scenario: Capturing fast transient events in digital storage oscilloscopes and time-domain reflectometers using analog front-end sampling gates. IC Role / Device Role / Timing Role: Comparator acting as precision trigger generator, converting analog signal crossings into clean digital strobes synchronized to system clock. Use Value: 4.5ns propagation delay and 0.5ns skew ensure sub-5ns timing resolution, directly improving waveform capture fidelity and jitter margin. |
Use Scenario: Providing fast, low-jitter square-wave output in Pierce-type crystal oscillator modules for microcontroller clock generation. IC Role / Device Role / Timing Role: High-gain, low-phase-noise comparator forming the active element in crystal feedback loop, sustaining oscillation at 1–10MHz. Use Value: 15psRMS timing jitter at 20MHz and rail-to-rail output drive ensure stable, low-skew clock signals with minimal duty-cycle distortion. |
| Level Translators | Threshold Detectors/Discriminators |
Use Scenario: Converting 5V logic outputs to 3.3V I/O domains in mixed-voltage FPGA or SoC interface boards. IC Role / Device Role / Timing Role: Single-supply voltage translator leveraging rail-to-rail output and wide input common-mode range to accept 5V inputs while driving 3.3V loads. Use Value: Eliminates need for dual-supply translators or resistor-divider networks, reducing BOM count and layout area in compact PCBs. |
Use Scenario: Detecting overvoltage/undervoltage conditions in DC power supplies and battery management systems. IC Role / Device Role / Timing Role: Precision window or threshold comparator monitoring analog sense lines, triggering fault interrupts or protection circuitry. Use Value: 2.5mV offset voltage and 3.5mV hysteresis enable accurate ±5mV trip-point setting without trimming, improving supply monitoring accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX961ASA+ | 4.8ns delay (20mV), 5.5V max supply, no shutdown pin, SO-8 only | Lacks integrated shutdown; requires external enable logic; larger footprint limits space-constrained designs | Choose when shutdown is unnecessary and SO-8 packaging is acceptable; verify input common-mode range (0V to VCC – 1.2V) matches system requirements |
| ADCMP572BCPZ-R2 | 2.5ns delay (20mV), 3.3V/5V supply, no hysteresis, 16-pin LFCSP | Higher speed but no internal hysteresis; requires external feedback for noise immunity; significantly higher cost and larger package | Choose only for sub-3ns timing-critical applications where external hysteresis design effort and cost are justified |
Compared with MAX961ASA+ and ADCMP572BCPZ-R2, the LT1719CS6#TRMPBF uniquely combines sub-5ns speed, integrated hysteresis, active-high shutdown, and TSOT-23 packaging - making it optimal for compact, battery-aware, noise-immune threshold detection where board space and power budget are constrained.
Availability
LT1719CS6#TRMPBF is available at Aetrix Electronics and suitable for high-speed sampling circuits, crystal oscillator modules, and threshold detector designs requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for LT1719CS6#TRMPBF 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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LT1719 belongs to ADI's UltraFast™ comparator product line, engineered for sub-5ns timing-critical applications including clock conditioning, high-speed data acquisition, and precision signal thresholding in resource-constrained environments.
FAQ
What is the maximum operating supply voltage for LT1719CS6#TRMPBF?
The LT1719CS6#TRMPBF supports a single-supply voltage range of 2.7V to 6V between V+ and V–. Absolute maximum rating is 7V across V+ and V–, but operation above 6V is not characterized or guaranteed. For reliable performance, maintain V+ – V– ≤ 6V and ensure V– remains at or below system ground potential.
Does LT1719CS6#TRMPBF require external hysteresis for stable operation?
No. The LT1719CS6#TRMPBF includes 3.5mV typical internal hysteresis, which prevents oscillation on slow-moving or noisy inputs. This eliminates the need for external positive feedback resistors in most threshold-detection applications, simplifying design and reducing component count.
How does the shutdown function work on LT1719CS6#TRMPBF?
The LT1719CS6#TRMPBF features an active-high shutdown pin (SHDN). Pulling SHDN to ≥ V+ – 0.5V disables both input and output stages, reducing total supply current to <80μA. To enable operation, SHDN must be pulled low - typically via a 100Ω resistor to V– for debug flexibility and ESD protection.
Can LT1719CS6#TRMPBF operate with inputs below ground?
Yes. The LT1719CS6#TRMPBF input common-mode range extends to V– – 0.1V. With V– tied to ground, inputs may go as low as –100mV, enabling true ground-referenced zero-crossing detection and AC-coupled signal monitoring without level-shifting circuitry.
What is the output drive capability of LT1719CS6#TRMPBF?
The LT1719CS6#TRMPBF provides rail-to-rail CMOS/TTL-compatible output drive: VOH = V+ – 0.4V (sourcing 4mA), VOL = 0.4V (sinking 10mA). This allows direct interfacing to 3V and 5V logic families without external pull-ups or level translators, supporting robust signal integrity in mixed-voltage systems.
LT1719CS6#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Series:
- UltraFast™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- CMOS, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 6V
- :
- 2.5mV @ 5V
- Voltage - Input Offset (Max):
- 6µA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 9mA
- Current - Quiescent (Max):
- 65dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 13ns
- Propagation Delay (Max):
- 7mV
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- TSOT-23-6
LT1719CS6#TRMPBF FAQ
1.How can I place an order for LT1719CS6#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1719CS6#TRMPBF 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 LT1719CS6#TRMPBF reliable?
The price and inventory of LT1719CS6#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1719CS6#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT1719CS6#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1719CS6#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1719CS6#TRMPBF?
LT1719CS6#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1719CS6#TRMPBF 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 LT1719CS6#TRMPBF?
For technical support, including LT1719CS6#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1719CS6#TRMPBF requirements.
6.How does Aetrix verify that LT1719CS6#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT1719CS6#TRMPBF 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 LT1719CS6#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT1719CS6#TRMPBF?
All LT1719CS6#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1719CS6#TRMPBF, 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 LT1719CS6#TRMPBF part is unused and in its original packaging.
Return procedure for LT1719CS6#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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