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Analog Devices Inc. LTC6994MPS6-1#TRM
- Part No.:
- LTC6994MPS6-1#TRM
- Manufacturer:
- Analog Devices Inc.
- Category:
- Delay Lines
- Package:
- -
- Datasheet:
-
LTC6994MPS6-1#TRM.pdf
- Description:
- IC DELAY BLOCK 8TAP PROG TSOT23
- Quantity:
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Inventory:2,950
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Product details
Overview
LTC6994MPS6-1#TRM from Analog Devices is a precision programmable delay block (TimerBlox family) that delays rising-edge transitions only, with 1µs–33.6s range, ±2.3% max error for delays >512µs, 2.25V–5.5V supply, and –55°C to 125°C operation in TSOT-23 package. It serves as a noise discriminator and switch debouncer in high-vibration industrial control systems.
For engineers reviewing the LTC6994MPS6-1#TRM datasheet, LTC6994MPS6-1#TRM pinout, LTC6994MPS6-1#TRM application, or LTC6994MPS6-1#TRM equivalent, this page delivers verified timing accuracy, temperature-stable delay programming via RSET resistor, edge-selective delay behavior (LTC6994-1 variant), automotive-grade reliability (AEC-Q100 qualified), and real-world pulse qualification use cases.
Technical Context
The LTC6994MPS6-1#TRM implements a master oscillator with 1µs base period, programmable via ISET current sourced from the SET pin (regulated at 1.00V ±30mV), and an internal 4-bit A/D converter on the DIV pin that selects NDIV = 1, 8, 64, 512, 4096, 2¹⁵, 2¹⁸, or 2²¹ and sets POL bit for rising-edge-only delay mode. Its digital filter ensures stable DIVCODE recognition and prevents spurious transitions during voltage drift.
Delay calculation follows tDELAY = NDIV × RSET / 50kΩ × 1µs, where RSET (50kΩ–800kΩ) sets ISET (1.25µA–20µA); VSET drift is rejected by feedback regulation, making delay accuracy dependent solely on RSET tolerance and internal NDIV quantization. Propagation delay is 10ns (V+ = 5.5V), and output drives ±20mA with CMOS rail-to-rail swing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Delay Range | 1µs to 33.6 seconds - supports both microsecond-level signal conditioning and multi-second system timing without external counters. |
| Delay Accuracy | ±2.3% max for tDELAY > 512µs - enables reliable pulse qualification in safety-critical debounce applications. |
| Supply Voltage | 2.25V to 5.5V - compatible with Li-ion, 3.3V logic, and legacy 5V industrial rails without level-shifting. |
| Operating Temperature | –55°C to 125°C - meets extended-range requirements for under-hood automotive and aerospace environments. |
| Output Drive | ±20mA CMOS - directly interfaces with LEDs, optocouplers, and logic inputs without buffer stages. |
| Start-Up Time | 500 × tMASTER (typ. 500µs at RSET = 50kΩ) - ensures deterministic initialization before first input edge. |
| Quiescent Current | 65µA at V+ = 2.25V, RSET = 800kΩ, NDIV ≥ 512 - enables ultra-low-power battery operation in portable equipment. |
Pinout & Package
Package: 6-Lead Plastic TSOT-23 (S6), 1mm profile, exposed pad optional, –55°C to 125°C rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Logic Input | Accepts 0.3×V+/0.7×V+ hysteresis thresholds; triggers rising-edge delay when POL = 0 (LTC6994-1 mode). |
| GND (Pin 2) | Ground Reference | Low-inductance return path for SET, IN, and OUT; exposed pad connection optional but recommended for thermal performance. |
| SET (Pin 3) | Delay Programming | Sinks ISET = VSET/RSET (VSET = 1.00V ±30mV); RSET = 50kΩ–800kΩ sets master oscillator period and delay resolution. |
| DIV (Pin 4) | Divider & Polarity Control | Voltage divider input (VDIV/V+ = (DIVCODE + 0.5)/16 ±1.5%) selects NDIV and configures rising-edge-only delay (POL = 0). |
| V+ (Pin 5) | Power Supply | 2.25V–5.5V input; requires 0.1µF ceramic bypass capacitor directly to GND for low-noise oscillator operation. |
| OUT (Pin 6) | CMOS Output | Rail-to-rail switching (GND to V+) with 30Ω typical output resistance; sources/sinks 20mA for direct load driving. |
Key Features
| Feature | Design Value |
|---|---|
| Rising-edge selective delay | Configured via POL = 0 on DIV pin; ignores falling edges entirely-ideal for eliminating chatter on mechanical switch closures. |
| Temperature-stable delay programming | VSET regulated to 1.00V ±30mV rejects supply and temperature drift; delay depends only on RSET and NDIV. |
| AEC-Q100 qualified | Rated for automotive applications per Grade MP (–55°C to 125°C), including HTOL, TCT, and ESD testing per standard. |
| Noise discrimination capability | Rejects sub-1µs glitches and short transients by requiring minimum input pulse width (5ns at V+ = 3.3V) before initiating delay. |
| Ultra-low quiescent current | 65µA typical at 2.25V/800kΩ/NDIV ≥ 512 - extends battery life in always-on sensor nodes and portable test gear. |
Applications
| Automotive Switch Debouncing | Industrial Safety Interlock Timing |
|---|---|
Use Scenario: Mechanical ignition switch or door latch sensor generates noisy contact bounce in engine control units. IC Role / Device Role / Timing Role: LTC6994MPS6-1#TRM delays rising edge of switch closure to suppress bounce while ignoring all falling edges. Use Value: Eliminates false trigger events without firmware overhead; operates reliably across –55°C to 125°C under hood conditions. |
Use Scenario: Emergency stop circuit requires guaranteed minimum delay between E-stop press and actuator shutdown to prevent mechanical shock. IC Role / Device Role / Timing Role: LTC6994MPS6-1#TRM provides precise, temperature-invariant 100ms–5s delay using single RSET resistor and no microcontroller. Use Value: Meets SIL-2 functional safety timing requirements with <±2.3% error and AEC-Q100 qualification. |
| Portable Medical Device Power Sequencing | High-Vibration Sensor Signal Conditioning |
Use Scenario: Battery-powered glucose meter powers up analog front-end after MCU initialization completes. IC Role / Device Role / Timing Role: LTC6994MPS6-1#TRM introduces fixed 200ms delay on rising edge of MCU GPIO to sequence power rails. Use Value: Consumes only 65µA during idle; eliminates need for timing capacitor or software timer in resource-constrained devices. |
Use Scenario: Accelerometer output in industrial vibration monitor contains high-frequency noise masking true event edges. IC Role / Device Role / Timing Role: LTC6994MPS6-1#TRM acts as pulse qualifier-only passes rising edges sustained >1µs, rejecting sub-microsecond noise spikes. Use Value: Reduces false alarms in predictive maintenance systems without DSP processing or external filtering components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable delay applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6994IS6-1#TRPBF | Same architecture and pinout; rated –40°C to 85°C (not –55°C to 125°C) and not AEC-Q100 qualified. | Restricted to commercial/industrial ambient environments; unsuitable for under-hood automotive use. | Select when extended temperature range and automotive qualification are unnecessary and cost optimization is prioritized. |
| MAX6816EUT+T | Dedicated 3-channel debouncer IC with fixed 10ms/20ms/40ms delays; no programmable RSET interface or wide 1µs–33.6s range. | Only supports standardized debounce intervals; lacks flexibility for custom timing or noise discrimination beyond switch bounce. | Select for simple, low-cost, multi-input switch debouncing where fixed delays suffice and board space permits 6-pin SOT-23 per channel. |
Compared with LTC6994IS6-1#TRPBF, LTC6994MPS6-1#TRM adds –55°C startup capability and AEC-Q100 compliance for harsh environments; compared with MAX6816EUT+T, it offers 34 decades of programmable delay range and single-resistor configuration instead of fixed intervals.
Availability
LTC6994MPS6-1#TRM is available at Aetrix Electronics and suitable for automotive switch debouncing, industrial safety interlocks, and portable medical device power sequencing requiring stable component supply across extreme temperature ranges.
Supply support for LTC6994MPS6-1#TRM 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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The TimerBlox family-including LTC6994MPS6-1#TRM-is designed for precision silicon timing applications where programmable delay, low power, and robust noise immunity replace discrete RC networks and microcontroller-based timing.
FAQ
What is the maximum delay accuracy specification for LTC6994MPS6-1#TRM at 10ms delay?
The LTC6994MPS6-1#TRM guarantees ±2.3% maximum delay error for delays greater than 512µs. At 10ms (well above that threshold), the actual delay will be within ±230µs of the programmed value under full –55°C to 125°C operating range, assuming proper RSET selection and layout per datasheet guidelines.
Does LTC6994MPS6-1#TRM support falling-edge delay?
No. LTC6994MPS6-1#TRM is the LTC6994-1 variant and delays rising-edge transitions only when POL = 0 (default configuration). Falling edges pass through with only propagation delay (10ns typ.). To delay both edges, LTC6994MPS6-2#TRM must be used instead.
Can LTC6994MPS6-1#TRM operate from a 2.25V supply?
Yes. LTC6994MPS6-1#TRM is fully specified from 2.25V to 5.5V. At 2.25V, it delivers ±20mA output drive, 65µA quiescent current (with RSET = 800kΩ), and maintains ±2.3% delay accuracy for tDELAY > 512µs across its full –55°C to 125°C temperature range.
What is the purpose of the DIV pin on LTC6994MPS6-1#TRM?
The DIV pin on LTC6994MPS6-1#TRM accepts a voltage divider to select both the delay multiplier (NDIV = 1, 8, 64, ..., 2²¹) and the polarity mode (POL = 0 for rising-edge delay). For LTC6994MPS6-1#TRM, POL = 0 is required to enable rising-edge-only delay functionality as specified in the part number suffix "-1".
Is LTC6994MPS6-1#TRM pin-compatible with other TimerBlox delay blocks?
Yes. LTC6994MPS6-1#TRM uses the standard 6-lead TSOT-23 (S6) package with identical pinout to all other S6-packaged TimerBlox delay variants (e.g., LTC6994IS6-1#TRPBF, LTC6994HS6-1#TRPBF), enabling drop-in replacement within the same temperature grade and function variant.
LTC6994MPS6-1#TRM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Taps/Steps:
- -
- Function:
- -
- Delay to 1st Tap:
- -
- Tap Increment:
- -
- Available Total Delays:
- -
- Number of Independent Delays:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
LTC6994MPS6-1#TRM FAQ
1.How can I place an order for LTC6994MPS6-1#TRM through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6994MPS6-1#TRM 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 LTC6994MPS6-1#TRM reliable?
The price and inventory of LTC6994MPS6-1#TRM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6994MPS6-1#TRM is usually 5 days.
3.What payment methods are accepted for LTC6994MPS6-1#TRM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6994MPS6-1#TRM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6994MPS6-1#TRM?
LTC6994MPS6-1#TRM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6994MPS6-1#TRM 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 LTC6994MPS6-1#TRM?
For technical support, including LTC6994MPS6-1#TRM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6994MPS6-1#TRM requirements.
6.How does Aetrix verify that LTC6994MPS6-1#TRM is sourced from the original manufacturer or authorized distributors?
All LTC6994MPS6-1#TRM 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 LTC6994MPS6-1#TRM meets industry standards.
7.What is the process for return or replacement of LTC6994MPS6-1#TRM?
All LTC6994MPS6-1#TRM units undergo pre-shipment inspection (PSI). If there is an issue with LTC6994MPS6-1#TRM, 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 LTC6994MPS6-1#TRM part is unused and in its original packaging.
Return procedure for LTC6994MPS6-1#TRM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC6994MPS6-1#TRM Tags
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