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Analog Devices Inc. LT6654AHS6-3#TRMPBF
- Part No.:
- LT6654AHS6-3#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6654AHS6-3#TRMPBF.pdf
- Description:
- IC VREF SERIES 0.05% TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:12,905
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Product details
Overview
LT6654AHS6-3#TRMPBF from Analog Devices is a precision 3V voltage reference IC with ±0.05% initial accuracy, 10ppm/°C max temperature drift, and ±10mA output drive capability in a 6-lead TSOT-23 package. It operates from –40°C to 125°C and supports high-resolution data acquisition, industrial sensor conditioning, and automotive control systems requiring stable low-noise reference voltage.
For engineers reviewing the LT6654AHS6-3#TRMPBF datasheet, LT6654AHS6-3#TRMPBF pinout, LT6654AHS6-3#TRMPBF application, or LT6654AHS6-3#TRMPBF equivalent, key selection criteria include guaranteed A-grade accuracy over extended temperature range, low 1.6ppmP-P (0.1Hz–10Hz) noise, and ability to both source and sink current without performance degradation.
Technical Context
The LT6654AHS6-3#TRMPBF integrates a curvature-compensated bandgap core with a low-output-impedance buffer amplifier, enabling precise load regulation and ±10mA bidirectional drive. Its architecture supports operation up to 36V input while maintaining low dropout (100mV max at 10mA source).
Designed for harsh environments, it features low thermal hysteresis (40ppm over –40°C to 125°C in TSOT-23), long-term drift of 60ppm/√kHr, and AEC-Q100 qualification for automotive use - all verified across the full H-grade temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.05% (±1.5mV absolute error at 25°C) |
| Temp Coefficient | 10ppm/°C max (±1.2ppm/°C typical drift contribution over –40°C to 125°C) |
| Output Noise | 1.6ppmP-P (0.1Hz–10Hz), equivalent to 4.8µVP-P at 3V output |
| Line Regulation | 5ppm/V max (15µV/V change over 3.5V–36V input range) |
| Load Regulation | 8ppm/mA max sourcing (24µV/mA), 20ppm/mA max sinking (60µV/mA) |
| Dropout Voltage | 100mV max at 10mA source (ensures stable 3V output down to VIN = 3.1V) |
| Supply Current | 350µA typical (enables ultra-low-power battery-operated instrumentation) |
Pinout & Package
LT6654AHS6-3#TRMPBF uses a 6-lead Plastic TSOT-23 (S6) package, 2.9mm × 1.6mm × 1.0mm profile, with exposed pad not connected internally. Pin 1 and Pin 5 are DNC (Do Not Connect); Pin 2 is NC (Not Connected); Pins 3 and 4 are GND (star-ground connection required); Pin 6 is VOUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | DNC | Internally connected; external connection prohibited to avoid leakage-induced error |
| Pin 2 | NC | No internal connection; may be left floating or tied to GND/VIN/VOUT per layout needs |
| Pin 3 | GND | Internal function ground; must connect near Pin 4 to minimize ground loop error |
| Pin 4 | GND | Primary device ground; star-point for load and internal GND connections |
| Pin 5 | VOUT | Main reference output; requires ≥1µF ceramic capacitor to GND for stability |
| Pin 6 | VOUT | Secondary output terminal; must be tied directly to Pin 5 for optimal load regulation |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Output Drive | ±10mA sourcing/sinking enables active biasing and negative reference configurations |
| Extended Temperature Range | –40°C to 125°C operation with full A-grade specs ensures reliability in engine bay or industrial enclosures |
| Low Thermal Hysteresis | 40ppm over –40°C ↔ 125°C cycling reduces calibration drift in thermally cycled systems |
| AEC-Q100 Qualified | H-grade qualification confirms suitability for automotive safety-critical subsystems (e.g., ADAS sensor power rails) |
| Low Power Consumption | 350µA supply current allows integration into always-on monitoring circuits without battery drain penalty |
Applications
| High-Resolution Data Acquisition | Automotive Sensor Conditioning |
|---|---|
Use Scenario: 24-bit delta-sigma ADC front-end in portable test equipment requiring <10ppm total error budget. IC Role / Device Role / Timing Role: Precision 3V reference for ADC VREF input, defining full-scale range and LSB size. Use Value: 1.6ppmP-P noise and 10ppm/°C drift ensure <0.002% measurement uncertainty over operating temperature. | Use Scenario: Reference for pressure/temperature sensor signal chains in powertrain control modules. IC Role / Device Role / Timing Role: Stable 3V bias for bridge sensor excitation and analog front-end gain stages. Use Value: AEC-Q100 qualification and –40°C to 125°C guaranteed specs eliminate recalibration during cold start or hot soak. |
| Industrial Process Control | Medical Instrumentation |
Use Scenario: 4–20mA transmitter with HART modulation requiring stable reference under wide supply and ambient variations. IC Role / Device Role / Timing Role: Primary reference for DAC output scaling and current loop regulation circuitry. Use Value: 36V max input and 5ppm/V line regulation maintain accuracy despite 24V rail fluctuations in factory wiring. | Use Scenario: Portable ECG/EEG amplifier with battery-powered analog signal path needing low-noise DC bias. IC Role / Device Role / Timing Role: Low-noise 3V reference for op-amp biasing and ADC reference in analog front-end. Use Value: 350µA quiescent current extends battery life; 1.6ppmP-P noise prevents baseline wander in sub-µV bio-signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5030IDR | 3.0V output, 0.05% initial accuracy, 3ppm/°C drift, but only rated to 125°C (not –40°C), no sinking capability | Limited to industrial ambient (0°C–85°C) or controlled environments; unsuitable for automotive cold-start or wide-temp industrial deployments | Select REF5030IDR only if ultra-low drift (3ppm/°C) is prioritized over temperature range and bidirectional drive |
| ADR4530BRZ | 3.0V output, 0.02% initial accuracy, 3ppm/°C drift, 10ppm P-P noise, but 10mA max sourcing only (no sinking), 125°C max junction temp | Higher accuracy but lacks sinking capability and extended low-temp rating; requires external circuitry for negative reference use | Choose ADR4530BRZ when highest initial accuracy is critical and system design excludes sinking loads or sub-zero operation |
Compared with REF5030IDR and ADR4530BRZ, LT6654AHS6-3#TRMPBF uniquely combines A-grade accuracy, full –40°C to 125°C specification, bidirectional drive, and AEC-Q100 qualification - making it the only option supporting automotive-grade sensor signal chains without external support components.
Availability
LT6654AHS6-3#TRMPBF is available at Aetrix Electronics and suitable for high-resolution data acquisition, automotive sensor conditioning, and industrial process control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6654AHS6-3#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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LT6654 family was designed for precision instrumentation and harsh-environment applications where long-term stability, low noise, and wide-temperature operation are mandatory - specifically targeting data converters, sensor interfaces, and automotive control units.
FAQ
What is the maximum input voltage for LT6654AHS6-3#TRMPBF?
The LT6654AHS6-3#TRMPBF supports an absolute maximum input voltage of 38V, with recommended operating range up to 36V. At 3V output, minimum input is 3.1V (100mV dropout). Operation above 30V requires an RC input filter (10Ω + 1µF) to suppress transients during output short-circuit events, as specified in the Applications Information section.
Does LT6654AHS6-3#TRMPBF support sinking current, and how much?
Yes, LT6654AHS6-3#TRMPBF can sink up to –10mA while maintaining specified accuracy. Sinking capability enables use as a negative reference (e.g., with external resistor network) and improves load regulation in dual-supply systems. Load regulation under sinking is 20ppm/mA max - higher than sourcing (8ppm/mA) due to internal architecture asymmetry.
What is the output noise performance of LT6654AHS6-3#TRMPBF?
LT6654AHS6-3#TRMPBF delivers 1.6ppmP-P (0.1Hz–10Hz), equivalent to 4.8µVP-P at 3V output. RMS noise is 2.0ppm (6.0µVRMS) in the same band. This low noise is achieved via curvature compensation and buffered output, critical for 24-bit+ data acquisition systems where reference noise dominates total error.
Is LT6654AHS6-3#TRMPBF qualified for automotive applications?
Yes, LT6654AHS6-3#TRMPBF carries AEC-Q100 qualification for automotive use. Its H-grade temperature range (–40°C to 125°C), low thermal hysteresis (40ppm), and robust construction meet requirements for engine control, ADAS sensors, and body electronics. The #TRMPBF suffix denotes tape-and-reel packaging compatible with automated SMT assembly.
What decoupling capacitors are required for stable operation of LT6654AHS6-3#TRMPBF?
LT6654AHS6-3#TRMPBF requires a minimum 1µF ceramic capacitor from VOUT to GND for stability, and a 0.1µF capacitor from VIN to GND. For high-voltage applications (VIN > 30V), an additional RC filter (10Ω + 1µF) on the input line is recommended to prevent transient overvoltage during output short-circuit events, as documented in the Applications Information section.
LT6654AHS6-3#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 1.6ppmp-p
- Noise - 10Hz to 10kHz:
- 2ppmrms
- Voltage - Input:
- 3.5V ~ 36V
- Current - Supply:
- 600µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
LT6654AHS6-3#TRMPBF FAQ
1.How can I place an order for LT6654AHS6-3#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6654AHS6-3#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 LT6654AHS6-3#TRMPBF reliable?
The price and inventory of LT6654AHS6-3#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6654AHS6-3#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT6654AHS6-3#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6654AHS6-3#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6654AHS6-3#TRMPBF?
LT6654AHS6-3#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6654AHS6-3#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 LT6654AHS6-3#TRMPBF?
For technical support, including LT6654AHS6-3#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6654AHS6-3#TRMPBF requirements.
6.How does Aetrix verify that LT6654AHS6-3#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT6654AHS6-3#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 LT6654AHS6-3#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT6654AHS6-3#TRMPBF?
All LT6654AHS6-3#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6654AHS6-3#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 LT6654AHS6-3#TRMPBF part is unused and in its original packaging.
Return procedure for LT6654AHS6-3#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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