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Analog Devices Inc. LT6654AHS6-5#TRMPBF
- Part No.:
- LT6654AHS6-5#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6654AHS6-5#TRMPBF.pdf
- Description:
- IC VREF SERIES 0.05% TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:7,075
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Product details
Overview
LT6654AHS6-5#TRMPBF from Analog Devices is a precision 5V 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 wide input supply up to 36V, making it suitable for high-reliability automotive sensor signal conditioning and industrial data acquisition front-ends.
For engineers reviewing the LT6654AHS6-5#TRMPBF datasheet, LT6654AHS6-5#TRMPBF pinout, LT6654AHS6-5#TRMPBF application, or LT6654AHS6-5#TRMPBF equivalent, this page delivers verified specifications, thermal stability data, load regulation behavior, and automotive-grade packaging details essential for precision analog design validation and long-term BOM continuity.
Technical Context
The LT6654AHS6-5#TRMPBF integrates a curvature-compensated bandgap core with a low-output-impedance buffer stage, enabling precise sourcing and sinking of ±10mA while maintaining 8ppm/mA load regulation (sourcing) and 20ppm/mA (sinking) across its full operating range. Its internal architecture supports stable operation with only 1µF output capacitance and tolerates input transients via integrated robustness features.
Designed for extended temperature operation, the device achieves 15ppm thermal hysteresis over –40°C to 125°C and exhibits 60ppm/√kHr long-term drift in the TSOT-23 package. It meets AEC-Q100 Grade H requirements and delivers 1.6ppmP-P (0.1Hz–10Hz) noise performance critical for 24-bit ADC reference applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.05% - Enables direct interface with 5V ADCs and DACs without gain calibration. |
| Temp Coefficient | 10ppm/°C max - Ensures ≤±0.625mV total drift over –40°C to 125°C ambient range. |
| Load Regulation | 8ppm/mA (source), 20ppm/mA (sink) - Maintains accuracy under dynamic current loads in sensor excitation circuits. |
| Line Regulation | 5ppm/V max (up to 36V) - Stable output despite wide input rail variations in battery-powered systems. |
| Output Noise | 1.6ppmP-P (0.1Hz–10Hz) - Minimizes quantization uncertainty in high-resolution measurement systems. |
| Dropout Voltage | 100mV max at 10mA - Allows operation with minimal headroom, e.g., from 5.1V supply in 5V systems. |
| Supply Current | 350µA typical - Supports ultra-low-power portable instrumentation and always-on monitoring nodes. |
Pinout & Package
LT6654AHS6-5#TRMPBF uses a 6-lead Plastic TSOT-23 package (1mm height), optimized for space-constrained PCB layouts and thermal performance in automotive engine control units and industrial PLC modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (DNC) | Do Not Connect | Internally connected; external connection risks leakage-induced error or instability. |
| Pin 2 (GND) | Primary Device Ground | Star-ground connection point for load and bypass capacitors to minimize ground bounce. |
| Pin 3 (DNC) | Do Not Connect | Internally connected; floating or routing required to avoid parasitic coupling. |
| Pin 4 (VIN) | Power Input | Accepts 5.5V–36V supply; requires ≥0.1µF ceramic bypass capacitor to GND for PSRR optimization. |
| Pin 5 (VOUT) | Reference Output | Main 5V output node; must be decoupled with ≥1µF ceramic capacitor for stability and low-noise operation. |
| Pin 6 (VOUT) | Reference Output | Second output terminal tied internally to Pin 5; improves load regulation symmetry when used in parallel layout. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | Operates from 5.5V to 36V input-enables single-supply use in 12V/24V automotive and industrial rails without LDO pre-regulation. |
| Bidirectional Output Drive | Sinks and sources ±10mA-supports active sensor biasing (e.g., RTD excitation) and precision current sink applications. |
| Low Thermal Hysteresis | 40ppm over –40°C to 125°C cycle-reduces calibration drift in systems undergoing repeated thermal cycling. |
| AEC-Q100 Qualified | H-grade (–40°C to 125°C) qualification-meets automotive reliability standards for under-hood and ADAS subsystems. |
| Low Dropout Operation | 100mV dropout at full 10mA load-permits direct use from 5.1V supplies, eliminating need for dedicated 5.5V rail. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial 24-Bit Data Acquisition System |
|---|---|
|
Use Scenario: High-temperature analog front-end for cylinder pressure sensing and knock detection. IC Role / Device Role / Timing Role: Primary 5V reference for sigma-delta ADCs sampling piezoelectric sensors at 100ksps. Use Value: 10ppm/°C drift ensures <±1.25 LSB error over full ECU operating range, meeting ASIL-B functional safety margin. |
Use Scenario: Precision reference in modular PLC I/O card for thermocouple and strain gauge inputs. IC Role / Device Role / Timing Role: Buffered 5V reference shared across multiple isolated ADC channels with independent load switching. Use Value: ±10mA bidirectional drive maintains 5V stability during simultaneous channel calibration sequences without external op-amps. |
| Portable Medical Vital Sign Monitor | High-Temperature Industrial Process Controller |
|
Use Scenario: Battery-powered ECG amplifier with 24-bit ADC requiring ultra-low-noise reference. IC Role / Device Role / Timing Role: Low-noise 5V reference for analog signal chain powering instrumentation amplifiers and anti-alias filters. Use Value: 1.6ppmP-P (0.1Hz–10Hz) noise directly enables sub-μV resolution in differential biosignal measurements. |
Use Scenario: Reference for RTD-to-digital converter in furnace temperature control module rated to 125°C ambient. IC Role / Device Role / Timing Role: High-stability 5V source for ratiometric excitation of 4-wire Pt100 sensors in harsh thermal environments. Use Value: 60ppm/√kHr long-term drift ensures <±30ppm drift over 10-year field life, reducing recalibration frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050IDR | 5V, 0.05% initial accuracy, 3ppm/°C drift, SO-8 package, 125°C max operating temp | Lower drift but larger SO-8 footprint; no sink capability; higher quiescent current (950µA) | Preferred where ultra-low drift dominates over board area and bidirectional drive. |
| ADR4550BRZ | 5V, 0.02% initial accuracy, 5ppm/°C drift, SO-8 package, 125°C max operating temp | Higher accuracy and lower noise (1.2ppmP-P), but no sink capability and 1.2mA supply current | Selected for metrology-grade instruments where power budget allows and sink function is unnecessary. |
Compared with REF5050IDR and ADR4550BRZ, the LT6654AHS6-5#TRMPBF offers unique bidirectional ±10mA drive in a compact TSOT-23 package with automotive qualification-making it optimal for space-constrained, thermally demanding applications requiring active sensor biasing or dual-direction load handling.
Availability
LT6654AHS6-5#TRMPBF is available at Aetrix Electronics and suitable for automotive ECU design, industrial data acquisition, and portable medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6654AHS6-5#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 specifically for precision voltage reference applications demanding low drift, low noise, and wide-temperature operation in mission-critical systems such as automotive sensors and industrial control hardware.
FAQ
What is the maximum operating temperature range for the LT6654AHS6-5#TRMPBF?
The LT6654AHS6-5#TRMPBF is specified for continuous operation from –40°C to +125°C ambient temperature. This H-grade rating aligns with AEC-Q100 automotive qualification and supports deployment in under-hood ECUs and high-temperature industrial controllers. The device maintains full electrical performance-including ±0.05% initial accuracy and 10ppm/°C drift-across this entire range.
Does the LT6654AHS6-5#TRMPBF support sinking current, and what is its maximum sink capability?
Yes, the LT6654AHS6-5#TRMPBF supports bidirectional output drive and can sink up to –10mA while maintaining specified accuracy. Its sink capability is validated per datasheet Table "Load Regulation (IOUT(SINK) = 10mA)" with 20ppm/mA regulation error for 5V output. This enables direct use in active sensor biasing, current-loop interfaces, and precision current sink configurations without external components.
What is the recommended output capacitor value for stable operation of the LT6654AHS6-5#TRMPBF?
An output capacitor of at least 1µF ceramic is required for stable operation of the LT6654AHS6-5#TRMPBF. The datasheet specifies that 1µF is the optimum value for most applications, though larger values (e.g., 10µF) are acceptable and may improve transient response. The capacitor must be placed close to Pins 5 and 6 (VOUT) and GND (Pin 2) to minimize parasitic inductance and ensure low-noise performance.
How does the LT6654AHS6-5#TRMPBF compare to the LT6654BHS6-5#TRMPBF in terms of accuracy and drift?
The LT6654AHS6-5#TRMPBF offers ±0.05% initial accuracy and 10ppm/°C max temperature drift, whereas the LT6654BHS6-5#TRMPBF provides ±0.10% initial accuracy and 20ppm/°C max drift. Both share identical package, temperature range (–40°C to 125°C), and electrical characteristics like noise, load regulation, and supply current. The 'A' grade is selected when tighter initial tolerance and lower drift are required for high-accuracy measurement systems.
Is the LT6654AHS6-5#TRMPBF pin-compatible with other members of the LT6654 family in the TSOT-23 package?
Yes, all LT6654 variants in the 6-lead TSOT-23 package-including LT6654AHS6-5#TRMPBF, LT6654AHS6-2.5#TRMPBF, and LT6654BHS6-3.3#TRMPBF-share identical pinout, footprint, and thermal characteristics. This allows drop-in replacement across output voltages (1.25V–5V) and grades (A/B) without PCB redesign, simplifying inventory management and design reuse across product families.
LT6654AHS6-5#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):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 2.2ppmp-p
- Noise - 10Hz to 10kHz:
- 2ppmrms
- Voltage - Input:
- 5.5V ~ 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
LT6654AHS6-5#TRMPBF FAQ
1.How can I place an order for LT6654AHS6-5#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6654AHS6-5#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 LT6654AHS6-5#TRMPBF reliable?
The price and inventory of LT6654AHS6-5#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6654AHS6-5#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT6654AHS6-5#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6654AHS6-5#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6654AHS6-5#TRMPBF?
LT6654AHS6-5#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6654AHS6-5#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 LT6654AHS6-5#TRMPBF?
For technical support, including LT6654AHS6-5#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6654AHS6-5#TRMPBF requirements.
6.How does Aetrix verify that LT6654AHS6-5#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT6654AHS6-5#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 LT6654AHS6-5#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT6654AHS6-5#TRMPBF?
All LT6654AHS6-5#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6654AHS6-5#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 LT6654AHS6-5#TRMPBF part is unused and in its original packaging.
Return procedure for LT6654AHS6-5#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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