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Analog Devices Inc. LTC6930IMS8-7.37#PBF
- Part No.:
- LTC6930IMS8-7.37#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6930IMS8-7.37#PBF.pdf
- Description:
- IC OSC SILICON 7.3728MHZ 8-MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,042
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Product details
Overview
LTC6930IMS8-7.37#PBF from Analog Devices (formerly Linear Technology) is a digitally controlled, precision silicon oscillator with factory-set 7.3728MHz master frequency, selectable via DIV pins across 8 output frequencies (57.6kHz to 7.3728MHz), ±0.1% frequency accuracy over –40°C to 85°C, 105µA typical supply current at 32kHz/3V, and <110µs start-up time. It serves as a low-power timing reference in battery-operated microcontroller systems.
For engineers reviewing the LTC6930IMS8-7.37#PBF datasheet, LTC6930IMS8-7.37#PBF pinout, LTC6930IMS8-7.37#PBF application, or LTC6930IMS8-7.37#PBF equivalent, key selection criteria include its ±0.1% temperature-stable accuracy, MS8 package compatibility, 1.7V–5.5V single-supply operation, and deterministic DIV-pin switching without output glitches.
Technical Context
The LTC6930IMS8-7.37#PBF implements a proprietary switched-capacitor feedback loop to stabilize its internal 7.3728MHz master oscillator against voltage and temperature variation. Its digital control architecture uses three CMOS input pins (DIVA/DIVB/DIVC) to select binary division ratios (1–128), enabling precise frequency synthesis without external components.
It features dual V+ pins (1 and 8) and dual GND pins (2 and 6) to isolate the oscillator core from output driver noise, achieving typical RMS period jitter <0.15% at 3V and output rise/fall times of 3ns. The output driver has 40Ω series resistance and supports up to 50pF capacitive or 1kΩ resistive load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency Range | 57.6kHz to 7.3728MHz - selectable via 3-bit DIV pin configuration (1–128 division of factory-programmed 7.3728MHz master) |
| Frequency Accuracy | ±0.1% over –40°C to 85°C - ensures stable timing in industrial-grade embedded systems without calibration |
| Supply Voltage | 1.7V to 5.5V - enables direct operation from single Li-ion cell or two AA batteries |
| Supply Current | 183µA typical at 7.3728MHz/3V - ultralow power for frequent wake-up cycles in portable devices |
| Start-Up Time | <110µs - guarantees first valid clock edge within 110µs of V+ reaching 1.7V, critical for low-latency power management |
| RMS Period Jitter | 0.97nsP-P at 7.3728MHz/3V - meets timing margin requirements for MCU clocking and serial interfaces |
| Operating Temperature | –40°C to +85°C - qualified for automotive cabin and industrial control environments |
Pinout & Package
Package: 8-Lead Plastic MSOP (MS8), 3.00mm × 4.90mm, 0.65mm pitch, exposed thermal pad not present (unlike DFN variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ (Pins 1, 8) | Positive Supply Input | Dual supply pins reduce supply impedance; each must be bypassed to adjacent GND with 0.1µF ceramic capacitor |
| GND (Pins 2, 6) | Ground Reference | Dual ground pins provide low-inductance return path; both must connect to same system ground plane |
| DIVA (Pin 3) | Frequency Divider Control Bit A | CMOS input (VIH ≥1.25V); sets LSB of 3-bit binary divider (N = 20·DIVA + 21·DIVB + 22·DIVC) |
| DIVB (Pin 4) | Frequency Divider Control Bit B | CMOS input (VIL ≤0.7V); middle bit of 3-bit divider; state determines division ratio per Table 1 |
| DIVC (Pin 5) | Frequency Divider Control Bit C | CMOS input (threshold ~1.25V); MSB of 3-bit divider; all three pins define one of eight discrete output frequencies |
| OUT (Pin 7) | CMOS Clock Output | Low-impedance (40Ω) rail-to-rail output; drives 5pF load (two HC inputs) or up to 50pF with increased supply current |
Key Features
| Feature | Design Value |
|---|---|
| No external timing components required | Self-contained silicon oscillator eliminates crystal, load caps, and matching network - reduces BOM count and layout area |
| Deterministic DIV pin switching | Output transitions cleanly within one clock cycle when DIV inputs change - prevents runt pulses or metastability in synchronous logic |
| Ultralow start-up current | Initial supply current remains below 200µA during first 110µs - minimizes voltage droop on shared battery rails |
| Supply-regulated frequency stability | 0.07%/V frequency drift - maintains accuracy across wide battery discharge range (e.g., 3.6V → 2.7V) |
| Thermal isolation architecture | Dual V+/GND pairs and internal layout separation suppress coupling between oscillator core and output driver - enables sub-1ns jitter |
Applications
| Microprocessor Clock Source | Portable Medical Sensor Node |
|---|---|
Use Scenario: Providing main system clock to an ARM Cortex-M4 MCU in a handheld glucose meter. IC Role / Device Role / Timing Role: Primary timing reference for CPU, peripherals, and ADC sampling clock. Use Value: ±0.1% accuracy ensures UART baud rate error <0.2%, eliminating need for software calibration; 183µA at 7.37MHz extends battery life beyond 12 months on two AA cells. |
Use Scenario: Synchronizing data acquisition in a wearable ECG patch with Bluetooth LE transmission. IC Role / Device Role / Timing Role: Low-jitter clock for 12-bit SAR ADC and BLE radio baseband timing. Use Value: 0.97nsP-P jitter at 7.37MHz preserves ENOB in 1ksps ECG sampling; <110µs start-up allows rapid sensor activation on motion detection. |
| Industrial PLC I/O Module | Smart Energy Meter Real-Time Clock |
Use Scenario: Generating precise timing for isolated digital I/O scan cycles in a DIN-rail mounted controller. IC Role / Device Role / Timing Role: System clock for FPGA-based I/O sequencer and watchdog timer. Use Value: –40°C to +85°C rating ensures reliable operation in unconditioned cabinets; dual V+/GND pins reject noise from nearby relay drivers. |
Use Scenario: Driving RTC and metrology ASIC in a Class 0.5 electricity meter with tamper detection. IC Role / Device Role / Timing Role: Backup clock source during main power failure; primary timing for pulse accumulation. Use Value: 1.7V minimum supply enables operation down to end-of-life battery voltage; long-term drift of 30ppm/√kHr limits timekeeping error to <0.02% over 10 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SiT1533AI-H4-33E-7.372800M | MEMS oscillator; ±10ppm initial accuracy (0.001%), 1.62–3.63V supply; no DIV pins - fixed 7.3728MHz output | Requires PCB redesign for fixed-frequency use; superior aging (±1ppm/year) but lacks programmability | Select when absolute stability > programmability; avoid if DIV-based frequency agility is needed. |
| MAX7375ETE+T | Crystal oscillator IC; requires external 7.3728MHz crystal; ±50ppm accuracy; 1.71–3.6V supply; no digital frequency selection | Higher board area and BOM cost due to crystal; less robust against shock/vibration than silicon resonator | Select only if crystal-based traceability or legacy qualification is mandated; inferior integration vs LTC6930IMS8-7.37#PBF. |
Compared with SiT1533AI-H4-33E-7.372800M and MAX7375ETE+T, the LTC6930IMS8-7.37#PBF uniquely combines factory-trimmed 7.3728MHz precision with on-the-fly digital division, enabling one hardware design to support multiple firmware-configurable clock rates while maintaining ±0.1% system-level accuracy across temperature and supply voltage.
Availability
LTC6930IMS8-7.37#PBF is available at Aetrix Electronics and suitable for industrial automation controllers, portable medical diagnostics, and smart energy metering requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LTC6930IMS8-7.37#PBF 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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC6930IMS8-7.37#PBF belongs to the LTC®6930 precision µPower oscillator family, designed specifically to replace quartz crystals in space-constrained, battery-powered systems where reliability, fast start-up, and supply-voltage insensitivity are critical.
FAQ
What is the factory-programmed master frequency of the LTC6930IMS8-7.37#PBF?
The LTC6930IMS8-7.37#PBF is factory-programmed with a 7.3728MHz master oscillator frequency. This value is fixed and non-adjustable; the device uses internal dividers (controlled by DIVA/DIVB/DIVC pins) to generate output frequencies from 57.6kHz to 7.3728MHz in eight discrete steps, as defined in Table 1 of the datasheet.
Can the LTC6930IMS8-7.37#PBF operate from a single 1.8V supply?
Yes, the LTC6930IMS8-7.37#PBF supports supply voltages from 1.7V to 5.5V. At 1.8V, it delivers 7.3728MHz output with typical supply current of 226µA and maintains ±0.8% frequency accuracy across the full –40°C to +85°C range, making it suitable for low-voltage IoT sensor nodes.
Does the LTC6930IMS8-7.37#PBF require external load capacitors like a crystal oscillator?
No, the LTC6930IMS8-7.37#PBF is a fully integrated silicon oscillator and requires no external load capacitors or crystals. Only 0.1µF ceramic bypass capacitors between each V+ pin (1 and 8) and its adjacent GND pin (2 and 6) are mandatory for stable operation and noise suppression.
How does the LTC6930IMS8-7.37#PBF handle switching between frequencies using the DIV pins?
The LTC6930IMS8-7.37#PBF switches frequencies deterministically within one output clock cycle when DIVA/DIVB/DIVC states change. The output remains glitch-free and free of runt pulses during transition, ensuring safe reconfiguration in real-time systems without disrupting downstream logic timing.
What is the maximum capacitive load the OUT pin of the LTC6930IMS8-7.37#PBF can drive?
The OUT pin of the LTC6930IMS8-7.37#PBF is characterized to drive up to 50pF capacitive load or 1kΩ resistive load. Driving 50pF at 7.3728MHz increases supply current to approximately 2.2mA (calculated as CLOAD × VSWING × fOSC), necessitating proper local decoupling with 0.1µF ceramics on both V+ pins.
LTC6930IMS8-7.37#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Oscillator, Silicon
- Count:
- -
- Frequency:
- 7.3728MHz
- Voltage - Supply:
- 1.7V ~ 5.5V
- Current - Supply:
- 853 µA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6930IMS8-7.37#PBF FAQ
1.How can I place an order for LTC6930IMS8-7.37#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6930IMS8-7.37#PBF 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 LTC6930IMS8-7.37#PBF reliable?
The price and inventory of LTC6930IMS8-7.37#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6930IMS8-7.37#PBF is usually 5 days.
3.What payment methods are accepted for LTC6930IMS8-7.37#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6930IMS8-7.37#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6930IMS8-7.37#PBF?
LTC6930IMS8-7.37#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6930IMS8-7.37#PBF 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 LTC6930IMS8-7.37#PBF?
For technical support, including LTC6930IMS8-7.37#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6930IMS8-7.37#PBF requirements.
6.How does Aetrix verify that LTC6930IMS8-7.37#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6930IMS8-7.37#PBF 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 LTC6930IMS8-7.37#PBF meets industry standards.
7.What is the process for return or replacement of LTC6930IMS8-7.37#PBF?
All LTC6930IMS8-7.37#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6930IMS8-7.37#PBF, 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 LTC6930IMS8-7.37#PBF part is unused and in its original packaging.
Return procedure for LTC6930IMS8-7.37#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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