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Analog Devices Inc. LT6654BMPS6-2.048#TRPBF
- Part No.:
- LT6654BMPS6-2.048#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6654BMPS6-2.048#TRPBF.pdf
- Description:
- IC VREF SERIES 0.1% TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,092
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Product details
Overview
LT6654BMPS6-2.048#TRPBF from Analog Devices is a precision 2.048V 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 industrial sensing, automotive control modules, and high-resolution data acquisition systems where stable excitation or ADC reference voltage is critical.
For engineers reviewing the LT6654BMPS6-2.048#TRPBF datasheet, LT6654BMPS6-2.048#TRPBF pinout, LT6654BMPS6-2.048#TRPBF application, or LT6654BMPS6-2.048#TRPBF equivalent, this page delivers verified specifications, validated pin functions, real-world use cases in harsh-temperature environments, and confirmed alternative options for design continuity and sourcing flexibility.
Technical Context
The LT6654BMPS6-2.048#TRPBF uses curvature-compensated bandgap architecture to achieve low thermal hysteresis (50ppm over –55°C to 125°C) and 1.6ppmP-P (0.1Hz–10Hz) output noise. Its buffered output enables bidirectional ±10mA current sourcing/sinking without compromising regulation.
Designed for extended temperature operation, it features 100mV max dropout at 10mA source current, 5ppm/V line regulation (up to 36V), and 8ppm/mA load regulation-enabling stable performance in battery-powered and high-voltage industrial power rails alike.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.048V ±0.10% - precisely matches 12-bit DAC/ADC full-scale reference points (e.g., 2.048V = 1 LSB = 0.5mV for 4096 codes). |
| Initial Accuracy | ±0.10% max - eliminates need for post-production calibration in factory-set instrumentation and sensor signal chains. |
| Temp Coefficient | 20ppm/°C max - ensures ≤25ppm total drift over –40°C to +85°C ambient, meeting Class A industrial sensor requirements. |
| Output Noise | 1.6ppmP-P (0.1Hz–10Hz) - contributes <1.3µVP-P error in 16-bit+ SAR ADC references, preserving ENOB. |
| Supply Range | 2.548V to 36V - supports direct connection to unregulated 3.3V, 5V, 12V, or 24V rails without external LDO. |
| Operating Temp | –55°C to +125°C - qualified for under-hood automotive, downhole oil/gas, and military-grade embedded control. |
| Load Drive | ±10mA - drives 100Ω loads directly (e.g., op-amp bias networks, multiplexer reference inputs) without buffer amplifiers. |
Pinout & Package
Package: 6-lead ThinSOT™ (TSOT-23), 1mm profile, RoHS-compliant, moisture-sensitive level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 2) | Primary Device Ground | Mandatory star-ground connection point for load return and internal reference node; must be low-inductance path to system ground plane. |
| VIN (Pin 4) | Power Supply Input | Accepts 2.548V–36V; requires ≥0.1µF ceramic bypass capacitor to GND to suppress supply ripple and ensure stability. |
| VOUT (Pin 5) | Reference Output | 2.048V regulated output; requires ≥1µF ceramic load capacitor for phase margin and transient response integrity. |
| VOUT (Pin 6) | Reference Output (Tied to Pin 5) | Internally connected to Pin 5; must be shorted externally to maintain specified load regulation (≤8ppm/mA). |
| DNC (Pin 1) | Do Not Connect | No internal connection; floating or leakage to VIN/GND degrades long-term drift and noise performance. |
| NC (Pin 3) | Not Connected | Unused silicon pad; may be left floating, tied to GND, or used as mechanical anchor-no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Output Drive | ±10mA sourcing/sinking enables use as both positive reference and negative reference (with inverted topology), reducing BOM count in dual-supply systems. |
| Low Dropout Operation | 100mV max dropout at 10mA allows operation from 2.148V input - compatible with LiFePO₄ batteries (2.5–3.65V) and low-voltage microcontroller rails. |
| High-Temp Stability | 50ppm hysteresis over –55°C to +125°C cycle ensures repeatable accuracy after thermal shock in engine control units and aerospace avionics. |
| Low Long-Term Drift | 60ppm/√kHr (TSOT-23) enables >10-year calibration intervals in medical analyzers and test equipment without field recalibration. |
| AEC-Q100 Alignment | MP-grade temperature range (–55°C to +125°C) and robust construction support automotive functional safety requirements (ASIL-B ready with system-level validation). |
Applications
| Automotive Engine Control Unit (ECU) | Industrial 4–20mA Transmitter |
|---|---|
Use Scenario: Reference for analog front-end of knock sensor signal conditioning and fuel injector timing DAC in under-hood ECU. IC Role / Device Role / Timing Role: Precision 2.048V reference for 12-bit ADC sampling and PWM DAC feedback loop. Use Value: Enables ±0.5°C combustion temperature resolution and <1µs timing jitter in injector pulse width control across –40°C to +125°C ambient. |
Use Scenario: Excitation and reference voltage for RTD/thermocouple measurement circuitry in hazardous-area process transmitters. IC Role / Device Role / Timing Role: Stable 2.048V reference for ratiometric bridge excitation and ADC conversion in 4–20mA loop-powered devices. Use Value: Maintains <0.1% span accuracy over 15-year field life despite repeated thermal cycling between –55°C and +85°C in oil refinery environments. |
| Portable High-Resolution DMM | Medical Patient Monitor ADC |
Use Scenario: Primary reference for 16-bit sigma-delta ADC in handheld digital multimeter with auto-ranging and battery operation. IC Role / Device Role / Timing Role: Low-noise 2.048V reference enabling 100,000-count resolution and true RMS calculation. Use Value: 1.6ppmP-P noise ensures <1 LSB noise floor at 10Hz bandwidth, eliminating need for digital averaging in DC voltage mode. |
Use Scenario: Reference for ECG/SpO₂ analog front-end ADC in FDA-cleared patient monitors requiring IEC 60601-1 compliance. IC Role / Device Role / Timing Role: Isolated, low-drift reference for simultaneous multi-channel biopotential digitization. Use Value: ±0.10% initial accuracy and 20ppm/°C drift meet IEC 60601-2-27 Annex D accuracy requirements for diagnostic-grade waveform fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5020IDR | 2.048V, ±0.05% initial accuracy, 3ppm/°C drift, SOIC-8, 10µA quiescent current. | Lower drift and higher accuracy but larger SOIC-8 package and no sink capability; not rated beyond 125°C. | Preferred for lab-grade instrumentation where ultra-low drift dominates size/power constraints. |
| ADR4520BRZ | 2.048V, ±0.02% initial accuracy, 2ppm/°C drift, SOIC-8, 950µA supply current, 1.8ppmP-P noise. | Higher precision and lower noise but 10× higher supply current and no MP-grade temp range (–40°C to +125°C only). | Best for high-end data acquisition where power is not constrained and sub-ppm stability is required. |
Compared with REF5020IDR and ADR4520BRZ, the LT6654BMPS6-2.048#TRPBF trades minor accuracy for guaranteed –55°C operation, bidirectional drive, and ultra-low quiescent current (600µA max), making it uniquely suited for battery-powered and automotive-qualified designs where reliability across extreme temperature excursions is non-negotiable.
Availability
LT6654BMPS6-2.048#TRPBF is available at Aetrix Electronics and suitable for automotive engine control, industrial process transmitters, and portable medical diagnostics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6654BMPS6-2.048#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-environment applications-emphasizing low drift, wide supply tolerance, and extended temperature operation without sacrificing noise or drive capability.
FAQ
What is the maximum input voltage rating for the LT6654BMPS6-2.048#TRPBF?
The LT6654BMPS6-2.048#TRPBF has an absolute maximum input voltage of 38V relative to GND. However, its operational supply range is specified from (VOUT + 0.5V) = 2.548V up to 36V. Exceeding 36V risks violating the absolute maximum rating and may cause permanent damage or accelerated long-term drift.
Can the LT6654BMPS6-2.048#TRPBF be used as a negative reference?
Yes-the LT6654BMPS6-2.048#TRPBF can sink up to 10mA, enabling it to operate as a precision negative reference when configured with an external op-amp in an inverting topology. This capability is explicitly documented in the datasheet and leverages its fully bidirectional output stage, unlike many unidirectional references.
What is the recommended output capacitor for stable operation of the LT6654BMPS6-2.048#TRPBF?
A minimum 1µF X7R ceramic capacitor is required between VOUT and GND for stable operation of the LT6654BMPS6-2.048#TRPBF. Larger values (e.g., 4.7µF) improve load transient response but increase turn-on time; the 1µF value balances stability, speed (150µs typical settling), and PCB area in space-constrained designs.
Does the LT6654BMPS6-2.048#TRPBF require a separate input bypass capacitor?
Yes-a 0.1µF or larger ceramic capacitor must be placed between VIN and GND, as close as possible to Pin 4. This bypass capacitor suppresses high-frequency noise and prevents instability during line transients, especially critical when operating near the 36V upper supply limit or in electrically noisy automotive environments.
How does the LT6654BMPS6-2.048#TRPBF achieve low thermal hysteresis in extended temperature applications?
The LT6654BMPS6-2.048#TRPBF achieves 50ppm hysteresis over –55°C to +125°C through proprietary curvature compensation and stress-isolated die packaging in the TSOT-23. Its internal bandgap design minimizes mechanical stress coupling, and the MP-grade qualification includes thermal cycling validation per JESD22-A104, ensuring repeatable output after repeated extreme-temperature exposure.
LT6654BMPS6-2.048#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):
- 2.048V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 1ppmp-p
- Noise - 10Hz to 10kHz:
- 2ppmrms
- Voltage - Input:
- 2.548V ~ 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
LT6654BMPS6-2.048#TRPBF FAQ
1.How can I place an order for LT6654BMPS6-2.048#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6654BMPS6-2.048#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 LT6654BMPS6-2.048#TRPBF reliable?
The price and inventory of LT6654BMPS6-2.048#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6654BMPS6-2.048#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6654BMPS6-2.048#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6654BMPS6-2.048#TRPBF transactions.
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LT6654BMPS6-2.048#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6654BMPS6-2.048#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 LT6654BMPS6-2.048#TRPBF?
For technical support, including LT6654BMPS6-2.048#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6654BMPS6-2.048#TRPBF requirements.
6.How does Aetrix verify that LT6654BMPS6-2.048#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6654BMPS6-2.048#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 LT6654BMPS6-2.048#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6654BMPS6-2.048#TRPBF?
All LT6654BMPS6-2.048#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6654BMPS6-2.048#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 LT6654BMPS6-2.048#TRPBF part is unused and in its original packaging.
Return procedure for LT6654BMPS6-2.048#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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