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Analog Devices Inc. LT6654BMPS6-2.5#TRPBF
- Part No.:
- LT6654BMPS6-2.5#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6654BMPS6-2.5#TRPBF.pdf
- Description:
- IC VREF SERIES 0.1% TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,861
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Product details
Overview
LT6654BMPS6-2.5#TRPBF from Analog Devices is a precision 2.5V voltage reference IC with ±0.10% initial accuracy, 20ppm/°C max temperature drift, and ±10mA output drive capability in a 6-lead TSOT-23 package. It operates from –55°C to 125°C and supports wide input voltages up to 36V, making it suitable for high-reliability automotive sensor signal conditioning and industrial data acquisition systems requiring stable excitation or ADC reference.
For engineers reviewing the LT6654BMPS6-2.5#TRPBF datasheet, LT6654BMPS6-2.5#TRPBF pinout, LT6654BMPS6-2.5#TRPBF application, or LT6654BMPS6-2.5#TRPBF equivalent, this page provides verified specifications, thermal performance across extended temperature range, load regulation behavior under sourcing/sinking, low-noise operation (1.6ppmP-P, 0.1Hz–10Hz), and validated alternatives for AEC-Q100-compliant designs.
Technical Context
The LT6654BMPS6-2.5#TRPBF uses curvature-compensated bandgap architecture with internal buffer to deliver precise 2.5V output while sinking and sourcing ±10mA. Its design enables operation as both positive and negative reference without external components.
It features low dropout (100mV max at 10mA source), 5ppm/V line regulation (up to 36V), and 8ppm/mA load regulation (source) - all fully specified over –55°C to 125°C. Thermal hysteresis is 50ppm for the TSOT-23 package across that full range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5V ±0.10% initial tolerance - ensures accurate ADC reference or DAC bias within 2.5mV at room temperature. |
| Tempco | 20ppm/°C max - limits output drift to ≤500ppm (12.5mV) over –55°C to 125°C span. |
| Noise (0.1–10Hz) | 1.6ppmP-P - contributes <4µVP-P noise to 2.5V output, critical for 18+ bit data acquisition. |
| Supply Range | Up to 36V - supports direct connection to unregulated industrial rails or automotive battery inputs. |
| Output Drive | ±10mA - enables direct driving of ADC reference inputs, op-amp bias networks, or small loads without external buffers. |
| Operating Temp | –55°C to 125°C - qualified for under-hood automotive, downhole, and military-grade embedded systems. |
| Dropout Voltage | 100mV max at 10mA source - allows operation with only 2.6V supply for 2.5V output, improving efficiency in low-voltage systems. |
Pinout & Package
Package: 6-lead Plastic TSOT-23 (ThinSOT™), 1mm profile, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 2) | Primary Device Ground | Mandatory star-ground connection point for load and internal circuitry; lowest impedance return path. |
| VIN (Pin 4) | Power Supply Input | Accepts 2.6V to 36V; requires ≥0.1µF bypass capacitor to GND for stability and transient immunity. |
| VOUT (Pin 6) | Reference Output | 2.5V buffered output; requires ≥1µF output capacitor to ground for stability and low-noise performance. |
| DNC (Pin 1 & 5) | Do Not Connect | Internally connected; external connection risks leakage current injection and output error. |
| NC (Pin 3) | Not Connected | No internal connection; may be left floating or tied to GND/VIN/VOUT without functional impact. |
Key Features
| Feature | Design Value |
|---|---|
| Extended Temperature Operation | –55°C to 125°C full-spec performance - eliminates derating concerns in harsh-environment applications. |
| Bidirectional Output Drive | Sinks and sources ±10mA - enables use as active current sink/source in precision current loops or bipolar reference circuits. |
| Low Thermal Hysteresis | 50ppm over –55°C to 125°C cycle - ensures repeatable accuracy after thermal cycling in automotive or industrial field deployments. |
| AEC-Q100 Qualified | Grade 1 (–40°C to 125°C) and MP-grade variants available - meets automotive reliability requirements for engine control and ADAS sensors. |
| Low Long-Term Drift | 60ppm/√kHr (TSOT-23) - predicts <120ppm drift over 4,000 hours, supporting 10+ year system calibration intervals. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial High-Resolution DAQ |
|---|---|
Use Scenario: Providing stable 2.5V reference for analog front-end of knock sensor signal conditioning and cylinder pressure monitoring. IC Role / Device Role / Timing Role: Precision voltage reference for 16-bit SAR ADC and programmable gain amplifier biasing. Use Value: Enables sub-100µV measurement resolution over full engine operating temperature range (–40°C to 125°C). |
Use Scenario: Serving as master reference for multi-channel 24-bit delta-sigma ADC in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-drift, low-noise reference source ensuring consistent full-scale accuracy across channels and time. Use Value: Maintains ≤0.005% total unadjusted error (TUE) over 10-year field life in factory automation environments. |
| Downhole Oil & Gas Sensor | Medical Patient Monitoring |
Use Scenario: Excitation reference for strain-gauge-based pressure transducers deployed in borehole tools operating at 150°C ambient. IC Role / Device Role / Timing Role: High-stability 2.5V reference enabling ratiometric measurement against bridge outputs. Use Value: Limits temperature-induced offset error to <0.02% FS over –55°C to 125°C, meeting API RP 17N requirements. |
Use Scenario: Reference for ECG/EEG analog signal chain in portable patient monitors requiring FDA Class II compliance. IC Role / Device Role / Timing Role: Ultra-low-noise (1.6ppmP-P) reference for high-fidelity biopotential amplification and digitization. Use Value: Reduces baseline noise floor to <1µVRMS, preserving diagnostic waveform fidelity for arrhythmia detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5025QPWRQ1 | 2.5V, ±0.05% initial accuracy, 3ppm/°C drift, 10ppmP-P noise, SOIC-8, –40°C to 125°C | Higher accuracy and lower drift but larger package and no sinking capability | Preferred where ultra-low drift dominates over size and bidirectional drive |
| ADR4525BKSZ-R7 | 2.5V, ±0.02% initial accuracy, 2ppm/°C drift, 1.75ppmP-P noise, SOT-23-6, –40°C to 125°C | Superior accuracy/drift specs but rated only to –40°C; not qualified for –55°C operation | Optimal for commercial/industrial systems needing best-in-class stability without extended cold spec |
Compared with LT6654BMPS6-2.5#TRPBF, REF5025QPWRQ1 offers tighter initial tolerance and drift but lacks sinking current capability and occupies more PCB area; ADR4525BKSZ-R7 delivers superior long-term stability yet cannot meet the –55°C lower limit required in aerospace or deep-cold industrial deployments.
Availability
LT6654BMPS6-2.5#TRPBF is available at Aetrix Electronics and suitable for automotive ECU design, downhole instrumentation, and medical patient monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6654BMPS6-2.5#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, 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 voltage referencing in harsh environments - emphasizing low drift, wide temperature operation, and robust output drive to replace legacy references in mission-critical sensing and control systems.
FAQ
What is the maximum input voltage rating for LT6654BMPS6-2.5#TRPBF?
The absolute maximum input voltage for LT6654BMPS6-2.5#TRPBF is 38V relative to GND, but the device is fully specified for operation up to 36V. Exceeding 36V may compromise long-term reliability and is not guaranteed to maintain output accuracy or thermal performance. For sustained 36V operation, ensure adequate power dissipation and thermal layout per the datasheet's θJA = 192°C/W specification.
Does LT6654BMPS6-2.5#TRPBF support negative reference configurations?
Yes, LT6654BMPS6-2.5#TRPBF can operate as a precision negative reference by sinking current - its output stage is fully bidirectional and maintains ±0.10% accuracy and 20ppm/°C drift even when sinking up to 10mA. This enables direct use in inverting reference topologies without external components, unlike many unidirectional references.
What is the recommended output capacitance for stable operation of LT6654BMPS6-2.5#TRPBF?
The minimum recommended output capacitance for LT6654BMPS6-2.5#TRPBF is 1µF ceramic, placed close to the VOUT and GND pins. Larger values (e.g., 10µF) improve PSRR and transient response but increase turn-on time. Avoid tantalum or electrolytic capacitors due to ESR-related instability risks. The 1µF value balances stability, noise filtering, and settling speed for most precision applications.
How does thermal hysteresis affect LT6654BMPS6-2.5#TRPBF in cyclic temperature environments?
LT6654BMPS6-2.5#TRPBF exhibits 50ppm hysteresis over a –55°C to 125°C thermal cycle in the TSOT-23 package - meaning output voltage may shift up to ±25ppm depending on prior thermal history. This is measured as the difference between average outputs after hot-to-cold and cold-to-hot cycles. For metrology-grade repeatability, system-level calibration at endpoints is recommended.
Is LT6654BMPS6-2.5#TRPBF pin-compatible with other members of the LT6654 family?
Yes, all LT6654 variants in the SOT-23-6 (S6) package - including LT6654AMPS6-2.5#TRPBF, LT6654BHS6-2.5#TRPBF, and LT6654BMPS6-2.5#TRPBF - share identical pinout, footprint, and solder reflow profile. This allows drop-in replacement for grade or temperature-range upgrades without PCB modification, provided the application tolerates the respective accuracy and drift specifications.
LT6654BMPS6-2.5#TRPBF 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):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 1.5ppmp-p
- Noise - 10Hz to 10kHz:
- 2ppmrms
- Voltage - Input:
- 3V ~ 36V
- Current - Supply:
- 600µA
- Current - Cathode:
- -
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
LT6654BMPS6-2.5#TRPBF FAQ
1.How can I place an order for LT6654BMPS6-2.5#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6654BMPS6-2.5#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 LT6654BMPS6-2.5#TRPBF reliable?
The price and inventory of LT6654BMPS6-2.5#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6654BMPS6-2.5#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6654BMPS6-2.5#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6654BMPS6-2.5#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6654BMPS6-2.5#TRPBF?
LT6654BMPS6-2.5#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6654BMPS6-2.5#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 LT6654BMPS6-2.5#TRPBF?
For technical support, including LT6654BMPS6-2.5#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6654BMPS6-2.5#TRPBF requirements.
6.How does Aetrix verify that LT6654BMPS6-2.5#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6654BMPS6-2.5#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 LT6654BMPS6-2.5#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6654BMPS6-2.5#TRPBF?
All LT6654BMPS6-2.5#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6654BMPS6-2.5#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 LT6654BMPS6-2.5#TRPBF part is unused and in its original packaging.
Return procedure for LT6654BMPS6-2.5#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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