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Analog Devices Inc. LTC6907CS6#TRPBF
- Part No.:
- LTC6907CS6#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC6907CS6#TRPBF.pdf
- Description:
- IC OSC SILICON PROG TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,156
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Product details
Overview
LTC6907CS6#TRPBF from Analog Devices (formerly Linear Technology) is a precision micropower resistor-programmable oscillator in SOT-23 package, delivering 40kHz–4MHz output frequency with ±1% accuracy over 0°C to 70°C, 36µA supply current at 400kHz, and 150Ω CMOS output driver - used for clock generation in portable instrumentation and low-power microcontroller timing systems.
For engineers reviewing the LTC6907CS6#TRPBF datasheet, LTC6907CS6#TRPBF pinout, LTC6907CS6#TRPBF application, or LTC6907CS6#TRPBF equivalent, key selection considerations include its single-resistor frequency programming, 3V–3.6V supply range, 6-pin ThinSOT™ package, ±0.65% initial accuracy, and divider-selectable output (÷1/÷3/÷10) enabling precise system clock derivation without crystals.
Technical Context
The LTC6907CS6#TRPBF implements a voltage-controlled oscillator core with internal 5pF precision capacitor and feedback loop that balances SET pin current (ISET) against oscillator frequency (fOSC), yielding fOUT = (4 MHz × 50 kΩ) / (RSET × N). Its three-level DIV input selects digital division ratios (N = 1, 3, or 10) via GND/floating/V+ logic states.
It features guard-ring-capable GRD pin to suppress PCB leakage-induced frequency drift, start-up time under 200µs at 4MHz, first-cycle accuracy after power-up, and ±0.005%/°C frequency drift over temperature when RSET = 158kΩ - all while maintaining 36µA typical supply current at 400kHz on 3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 40kHz to 4MHz - covers MCU clock, sensor sampling, and serial interface timing across battery-powered devices. |
| Frequency Accuracy | ±1% over 0°C to 70°C - enables reliable timing without calibration in industrial and portable equipment. |
| Supply Current | 36µA at 400kHz, 3V - supports multi-year operation on coin-cell batteries in IoT edge nodes. |
| Output Driver | 150Ω CMOS - drives 5pF load directly; avoids external buffer in low-capacitance signal routing. |
| Divider Ratios | ÷1, ÷3, ÷10 - selected by DIV pin state (GND/floating/V+) to extend effective frequency range without changing RSET. |
| Operating Voltage | 3V to 3.6V - matches Li-ion/Li-Po battery discharge profile and LDO regulator outputs. |
| Start-Up Time | <200µs at 4MHz - ensures rapid system wake-up and deterministic timing initialization. |
Pinout & Package
Package: 6-lead TSOT-23 (ThinSOT™), 1mm height, JEDEC MO-193 compliant, 2.9mm × 1.6mm footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Oscillator output | CMOS square wave output with 150Ω source impedance; swings rail-to-rail (GND to V+). |
| GND (Pin 2) | Ground reference | Primary ground return for oscillator core and output driver; must be low-impedance. |
| DIV (Pin 3) | Divider ratio select | Three-state input: GND = ÷1, floating = ÷3 (internal 2.5MΩ pull-up), V+ = ÷10. |
| SET (Pin 4) | Frequency-setting node | Connects external RSET (50kΩ–500kΩ) to GND; voltage ≈650mV at 25°C, tempco ≈ –2.3mV/°C. |
| GRD (Pin 5) | Guard signal | Tracks SET pin within millivolts; used with copper guard ring to shunt PCB leakage away from RSET. |
| V+ (Pin 6) | Power supply | 3V–3.6V input; requires 0.1µF ceramic decoupling capacitor placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Single-resistor frequency programming | RSET sets fOUT across 10:1 range with ≤0.65% initial error - eliminates trim pots and crystal inventory. |
| Micropower operation | 36µA at 400kHz enables >10-year battery life in always-on sensor nodes using CR2032 cells. |
| First-cycle accuracy | Initial output period matches target frequency within ±1% - critical for time-triggered control loops. |
| Leakage-immune SET architecture | GRD pin + guard ring reduces PCB moisture/dirt-induced drift to <0.1% - validated for harsh industrial environments. |
| Low-profile SOT-23 packaging | 1mm height, 6-pin ThinSOT™ - fits space-constrained wearables and medical patches. |
Applications
| Portable Medical Sensors | Industrial Data Loggers |
|---|---|
Use Scenario: Continuous ECG monitoring in patch-style wearable with CR2032 battery. IC Role / Device Role / Timing Role: Primary system clock generator for ADC sampling and BLE radio wakeup timing. Use Value: 36µA supply current extends battery life to 3+ years; ±1% accuracy ensures consistent sampling interval compliance with IEC 60601. | Use Scenario: Remote environmental sensor node logging temperature/humidity every 10 seconds. IC Role / Device Role / Timing Role: Low-power timing source for microcontroller sleep/wake cycles and RTC backup. Use Value: Single RSET configuration simplifies BOM; GRD pin mitigates humidity-induced drift in unsealed enclosures. |
| Smart Metering Modules | IoT Edge Gateways |
Use Scenario: Sub-GHz wireless meter reading unit operating in utility cabinets with wide temperature swing. IC Role / Device Role / Timing Role: Clock source for secure boot sequence and cryptographic timer in ARM Cortex-M4 host. Use Value: –40°C to 125°C H-grade option available; ±0.005%/°C drift ensures <1ppm/hour timing error over thermal cycling. | Use Scenario: Battery-backed LoRaWAN gateway aggregating data from 50+ end-nodes. IC Role / Device Role / Timing Role: Precision reference for UART baud rate generation and packet timestamping. Use Value: ÷10 divider mode enables stable 32.768kHz-equivalent timing from 327.68kHz base - avoids crystal aging issues. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6906CS6#TRPBF | 10kHz–1MHz range, 12µA @ 100kHz, ±0.65% accuracy - narrower frequency span, lower power. | Better suited for ultra-low-power sub-100kHz timing (e.g., real-time clocks, slow ADC triggers). | Select when system clock requirements fall below 1MHz and µA-level current is critical. |
| LTC6903CS6#TRPBF | I²C-programmable, 1kHz–68MHz, 0.1% resolution, 1.2mA supply - wider range, digital interface, higher power. | Required where dynamic frequency reconfiguration or fine-grained tuning (e.g., spread-spectrum, calibration) is needed. | Select when firmware-controlled frequency agility outweighs micropower advantage. |
Compared with LTC6906CS6#TRPBF and LTC6903CS6#TRPBF, the LTC6907CS6#TRPBF uniquely balances 40kHz–4MHz coverage, ±1% accuracy, and 36µA consumption in a resistor-set architecture - making it optimal for fixed-frequency, battery-sensitive applications where simplicity and long-term stability are prioritized over programmability or ultra-low current.
Availability
LTC6907CS6#TRPBF is available at Aetrix Electronics and suitable for portable medical sensors, industrial data loggers, and smart metering modules requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for LTC6907CS6#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 its high-precision analog IC portfolio, emphasizing signal integrity, low power, and rugged performance for industrial and medical applications.
The LTC6907CS6#TRPBF belongs to Linear's micropower oscillator product line, designed specifically to replace quartz crystals and ceramic resonators in space- and power-constrained systems while delivering superior shock/vibration immunity and simplified layout.
FAQ
What is the maximum recommended load capacitance for the LTC6907CS6#TRPBF output?
The LTC6907CS6#TRPBF is characterized with 5pF load capacitance and specifies timing jitter, rise/fall times, and duty cycle under this condition. While the 150Ω output driver can drive higher capacitive loads, exceeding 5pF increases jitter (e.g., 0.28% peak-to-peak at 50kΩ RSET, floating DIV) and degrades edge rates. For loads >10pF, add a series resistor near the output to isolate capacitance and preserve signal integrity. The LTC6907CS6#TRPBF datasheet explicitly recommends minimizing CLOAD for best performance.
Can the LTC6907CS6#TRPBF operate from a 5V supply?
The LTC6907CS6#TRPBF absolute maximum rating allows V+ up to 6V, but its specified operating range is strictly 3V to 3.6V. Operation above 3.6V requires an RC filter (e.g., 100Ω + 1µF) within 1cm of the V+ pin per Figure 11 in the datasheet. Without filtering, supply noise coupling into the oscillator core causes frequency instability and increased jitter. The LTC6907CS6#TRPBF is not characterized or guaranteed for 5V operation - use only with the recommended filter and validate performance in final application.
How does the GRD pin improve frequency stability in humid environments?
PCB surface contamination and humidity create leakage paths across RSET, injecting error current into the SET pin. A 500MΩ leakage resistance causes ~0.1% frequency error. The GRD pin on the LTC6907CS6#TRPBF is held within millivolts of the SET pin voltage, providing a low-impedance shunt path that diverts leakage current away from the sensitive SET node. When implemented with an exposed copper guard ring surrounding RSET and the SET trace (no solder mask), the LTC6907CS6#TRPBF maintains ±1% accuracy even in 85% RH conditions - validated in Linear's reliability testing.
What is the impact of DIV pin configuration on power consumption of the LTC6907CS6#TRPBF?
Power consumption of the LTC6907CS6#TRPBF decreases as RSET increases and DIV ratio decreases. At fixed output frequency, selecting ÷1 (DIV = GND) allows largest RSET, minimizing ISET and total supply current. For example, generating 400kHz with ÷1 uses RSET = 500kΩ and draws ~36µA, while ÷10 requires RSET = 50kΩ and draws ~275µA at 3V. Thus, DIV configuration directly trades off power vs. layout simplicity - the LTC6907CS6#TRPBF datasheet provides curves (Figure 8) showing this inverse relationship.
Is the LTC6907CS6#TRPBF RoHS-compliant and lead-free?
Yes, the LTC6907CS6#TRPBF is RoHS-compliant and lead-free. The "#PBF" suffix denotes lead-free termination, and "#TRPBF" indicates lead-free tape-and-reel packaging. Analog Devices confirms full compliance with EU RoHS Directive 2011/65/EU and China RoHS, with homogeneous material declarations available upon request. The device uses matte tin plating on leads and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), suitable for standard SMT reflow profiles. The LTC6907CS6#TRPBF part marking "LTBTX" is consistent with Linear's lead-free identification scheme.
LTC6907CS6#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Oscillator, Silicon
- Count:
- -
- Frequency:
- 40kHz ~ 4MHz
- Voltage - Supply:
- 3V ~ 3.6V
- Current - Supply:
- 305 µA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- TSOT-23-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6907CS6#TRPBF FAQ
1.How can I place an order for LTC6907CS6#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6907CS6#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 LTC6907CS6#TRPBF reliable?
The price and inventory of LTC6907CS6#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6907CS6#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6907CS6#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6907CS6#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6907CS6#TRPBF?
LTC6907CS6#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6907CS6#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 LTC6907CS6#TRPBF?
For technical support, including LTC6907CS6#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6907CS6#TRPBF requirements.
6.How does Aetrix verify that LTC6907CS6#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6907CS6#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 LTC6907CS6#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6907CS6#TRPBF?
All LTC6907CS6#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6907CS6#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 LTC6907CS6#TRPBF part is unused and in its original packaging.
Return procedure for LTC6907CS6#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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