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Analog Devices Inc. LTC6994CS6-2#TRMPBF
- Part No.:
- LTC6994CS6-2#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Delay Lines
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC6994CS6-2#TRMPBF.pdf
- Description:
- IC DELAY BLOCK 8TAP PROG TSOT23
- Quantity:
- Payment:
- Shipping:
Inventory:14,689
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Product details
Overview
LTC6994CS6-2#TRMPBF from Analog Devices is a TimerBlox programmable delay block IC that delays both rising and falling input edges with configurable inversion, supporting 1µs–33.6s delay range via RSET resistor and DIV pin voltage programming, and operates from 2.25V to 5.5V supply in portable and high-vibration environments.
For engineers reviewing the LTC6994CS6-2#TRMPBF datasheet, LTC6994CS6-2#TRMPBF pinout, LTC6994CS6-2#TRMPBF application, or LTC6994CS6-2#TRMPBF equivalent, key selection considerations include dual-edge delay capability, ±2.3% max delay error above 512µs, 70µA supply current at 10µs delay, SOT-23-6 package compatibility, and automotive-grade temperature range (0°C to 70°C).
Technical Context
The LTC6994CS6-2#TRMPBF implements a master oscillator with 1µs/50kΩ scaling factor, whose frequency is set by ISET current sourced from the SET pin, and uses an internal 4-bit A/D converter on the DIV pin to select NDIV values (1, 8, 64, 512, 4096, 2¹⁵, 2¹⁸, 2²¹) and polarity mode. Its edge-controlled delay logic ensures output transitions only after stable input edges meet minimum pulse width (5ns at 3.3V), rejecting noise below programmed delay.
Unlike the LTC6994-1 variant, the LTC6994CS6-2#TRMPBF always delays both rising and falling edges; when POL = 1 (DIVCODE ≥ 8), it inverts the output signal. The device features CMOS output capable of sourcing/sinking 20mA, 500µs typical start-up time, and ±0.006%/°C delay drift for NDIV ≥ 512.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Delay Range | 1µs to 33.6 seconds - supports wide timing flexibility from digital debouncing to long-interval system sequencing. |
| Delay Accuracy | ±2.3% max for delays >512µs - enables reliable timing-critical functions without external calibration. |
| Supply Voltage | 2.25V to 5.5V - compatible with Li-ion, 3.3V, and 5V systems without level-shifting. |
| Supply Current | 70µA at 10µs delay (V+ = 2.25V, RSET = 800kΩ) - ultra-low power for battery-operated devices. |
| Operating Temp | 0°C to 70°C - commercial-grade thermal range validated for industrial and consumer applications. |
| Output Drive | ±20mA CMOS - directly drives LEDs, logic inputs, or small relays without buffer stages. |
| Start-Up Time | 500 × tMASTER (typ. 500µs at RSET = 800kΩ) - deterministic initialization before first valid output transition. |
Pinout & Package
Package: 6-Lead Plastic TSOT-23 (S6), 1mm height, RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Logic Input | Accepts 0.3×V+/0.7×V+ threshold CMOS-compatible signals; hysteresis rejects slow/noisy edges. |
| GND (Pin 2) | Ground Reference | Low-inductance return path for all internal circuits; exposed pad optional connection point. |
| SET (Pin 3) | Delay Programming | Sinks ISET current (1.25–20µA); VSET regulated to 1.00V ±30mV for stable oscillator control. |
| DIV (Pin 4) | Divider & Polarity Control | Voltage-programmed 4-bit A/D input selecting NDIV and POL bit; requires <100pF capacitance for stability. |
| V+ (Pin 5) | Power Supply | 2.25–5.5V single supply; bypass with 0.1µF capacitor directly to GND for low-noise operation. |
| OUT (Pin 6) | Programmable Delay Output | CMOS rail-to-rail output; sources/sinks 20mA; toggles after programmed delay on both edges (LTC6994-2 function). |
Key Features
| Feature | Design Value |
|---|---|
| Dual-edge delay with inversion option | Enables precise pulse shaping and noise-immune signal qualification in both noninverting and inverting modes. |
| Resistor-programmable delay | Single RSET (50kΩ–800kΩ) sets master oscillator; eliminates need for external clock or crystal. |
| Dynamic DIV pin reconfiguration | Allows real-time delay adjustment during operation via analog voltage change on DIV pin. |
| Low-power idle state | Draws ≤110µA at 2.25V with RSET = 800kΩ and NDIV ≥ 512 - extends battery life in intermittent-use systems. |
| Robust input hysteresis | Input thresholds scale with V+ (VIN(RISING) ≈ 0.55×V+ + 185mV), ensuring noise immunity across supply range. |
Applications
| Switch Debouncing | Noise Discriminator |
|---|---|
Use Scenario: Mechanical switch closure in industrial HMI panels generates contact bounce lasting 1–10ms. IC Role / Device Role / Timing Role: LTC6994CS6-2#TRMPBF delays both edges with 5ms fixed delay to suppress bounce artifacts before clean logic transition. Use Value: Eliminates need for RC filters and firmware debounce routines; guarantees glitch-free digital input registration. | Use Scenario: Sensor output in high-vibration automotive engine bay exhibits sub-microsecond EMI spikes. IC Role / Device Role / Timing Role: LTC6994CS6-2#TRMPBF acts as pulse qualifier, passing only input transitions sustained longer than 10µs. Use Value: Prevents false triggering of safety-critical control logic while preserving true signal integrity. |
| Delay Matching | Portable Equipment Timing |
Use Scenario: Synchronized enable signals required for multiple power rails in FPGA-based embedded systems. IC Role / Device Role / Timing Role: LTC6994CS6-2#TRMPBF provides matched 100µs delays across parallel channels using identical RSET and DIV configurations. Use Value: Ensures simultaneous rail activation within ±2.3% timing tolerance, avoiding inrush current stacking. | Use Scenario: Low-power wearable device wakes peripherals only after confirmed user button press duration >200ms. IC Role / Device Role / Timing Role: LTC6994CS6-2#TRMPBF delays IN→OUT with 200ms timeout, then asserts wake signal only if button remains pressed. Use Value: Reduces average system current by disabling MCU until intentional long-press is verified. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable delay applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6816EUT+T | Fixed 10ms debounce delay; no resistor programming or dual-edge support; 2.7–5.5V supply. | Only suitable for basic switch debouncing; cannot implement variable or asymmetric delays. | Select when cost-sensitive, single-delay applications require minimal design effort and no dynamic adjustment. |
| TPS3808G01DBVR | Reset supervisor with adjustable delay (1.25ms–10s); no edge-selectable delay or inversion; open-drain output. | Limited to power-on reset timing; lacks input edge qualification and CMOS drive capability. | Choose for system reset coordination where output drive strength and signal conditioning are secondary. |
Compared with MAX6816EUT+T and TPS3808G01DBVR, the LTC6994CS6-2#TRMPBF uniquely supports both rising/falling edge delay, output inversion, and fine-grained resistor-based timing over seven decades - making it the only option for adaptive noise discrimination and precision pulse shaping.
Availability
LTC6994CS6-2#TRMPBF is available at Aetrix Electronics and suitable for switch debouncing, noise discrimination, delay matching, and portable equipment timing requiring stable component supply across commercial temperature ranges.
Supply support for LTC6994CS6-2#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC6994CS6-2#TRMPBF belongs to the TimerBlox family - silicon timing devices designed to replace discrete RC timers and crystal oscillators in space-constrained, low-power applications demanding programmable, jitter-controlled delay functionality.
FAQ
What is the maximum delay achievable with the LTC6994CS6-2#TRMPBF?
The LTC6994CS6-2#TRMPBF supports a maximum delay of 33.6 seconds, achieved when NDIV = 2²¹ (2,097,152) and RSET = 800kΩ per the tDELAY = NDIV × RSET / 50kΩ × 1µs equation. This occurs with DIVCODE = 7 or 8 and appropriate resistor programming on the SET and DIV pins.
Does the LTC6994CS6-2#TRMPBF support inverting the output signal?
Yes, the LTC6994CS6-2#TRMPBF supports output inversion when the POL bit is set (DIVCODE ≥ 8). In this mode, the output is inverted relative to the delayed input signal - for example, a high-to-low input transition produces a low-to-high output transition after the programmed delay.
What is the minimum supply voltage required for reliable operation of the LTC6994CS6-2#TRMPBF?
The LTC6994CS6-2#TRMPBF operates reliably from 2.25V to 5.5V. At 2.25V, it maintains full functionality including 70µA supply current (RSET = 800kΩ), ±20mA output drive, and specified delay accuracy - enabling direct use in single-cell Li-ion or coin-cell powered systems.
How does the LTC6994CS6-2#TRMPBF differ from the LTC6994-1 variants?
The LTC6994CS6-2#TRMPBF implements the LTC6994-2 function: it delays both rising and falling input edges, whereas LTC6994-1 variants delay only one edge type. Additionally, LTC6994CS6-2#TRMPBF supports output inversion via the POL bit, a feature absent in LTC6994-1.
Can the delay time of the LTC6994CS6-2#TRMPBF be adjusted dynamically during operation?
Yes, the LTC6994CS6-2#TRMPBF allows dynamic delay adjustment by changing the voltage on the DIV pin, which reprograms NDIV in real time. The device includes digital filtering to prevent spurious code changes, with settling time proportional to ∆DIVCODE and master oscillator period.
LTC6994CS6-2#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- TimerBlox®
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Taps/Steps:
- 8
- Function:
- Programmable
- Delay to 1st Tap:
- -
- Tap Increment:
- -
- Available Total Delays:
- 1µs ~ 33.6s
- Number of Independent Delays:
- 1
- Voltage - Supply:
- 2.25V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
LTC6994CS6-2#TRMPBF FAQ
1.How can I place an order for LTC6994CS6-2#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6994CS6-2#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 LTC6994CS6-2#TRMPBF reliable?
The price and inventory of LTC6994CS6-2#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6994CS6-2#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6994CS6-2#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6994CS6-2#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6994CS6-2#TRMPBF?
LTC6994CS6-2#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6994CS6-2#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 LTC6994CS6-2#TRMPBF?
For technical support, including LTC6994CS6-2#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6994CS6-2#TRMPBF requirements.
6.How does Aetrix verify that LTC6994CS6-2#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6994CS6-2#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 LTC6994CS6-2#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6994CS6-2#TRMPBF?
All LTC6994CS6-2#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6994CS6-2#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 LTC6994CS6-2#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6994CS6-2#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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