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Analog Devices Inc. LT6654BMPS6-2.048#TRMPBF
- Part No.:
- LT6654BMPS6-2.048#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6654BMPS6-2.048#TRMPBF.pdf
- Description:
- IC VREF SERIES 0.1% TSOT23-6
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LT6654BMPS6-2.048#TRMPBF 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 sensor front-ends and automotive control modules requiring stable excitation or ADC reference.
For engineers reviewing the LT6654BMPS6-2.048#TRMPBF datasheet, LT6654BMPS6-2.048#TRMPBF pinout, LT6654BMPS6-2.048#TRMPBF application, or LT6654BMPS6-2.048#TRMPBF equivalent, key selection criteria include its MP-grade extended temperature range, low 1.6ppmP-P (0.1Hz–10Hz) noise, 100mV max dropout, and ability to both source and sink current - critical for ratiometric systems and bidirectional reference biasing.
Technical Context
The LT6654BMPS6-2.048#TRMPBF employs curvature-compensated bandgap architecture with internal buffering to deliver precise, low-drift output across extreme temperatures. Its dual-output-pin configuration (Pins 5 & 6) enables optimized load regulation and low-impedance sourcing/sinking.
It features active thermal hysteresis mitigation and is specified for full operation from –55°C to 125°C, with long-term drift of 60ppm/√kHr in the TSOT-23 package. The device maintains 5ppm/V line regulation up to 36V and 8ppm/mA load regulation at ±10mA sourcing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.048V nominal - matches common 12-bit DAC/ADC full-scale reference points for zero-error scaling. |
| Initial Accuracy | ±0.10% max - ensures ≤±2.05mV absolute error at 25°C without calibration. |
| Temp Coefficient | 20ppm/°C max - guarantees ≤±2.5mV total drift over –55°C to 125°C span. |
| Output Noise | 1.6ppmP-P (0.1Hz–10Hz) - contributes <0.33µVP-P noise, enabling 18+ ENOB in precision data acquisition. |
| Supply Range | Up to 36V - allows direct connection to unregulated industrial rails or automotive battery systems. |
| Dropout Voltage | 100mV max - supports operation with only 2.148V input, easing low-voltage system integration. |
| Output Drive | ±10mA - enables direct driving of 200Ω loads or multiple op-amp bias networks without external buffers. |
Pinout & Package
LT6654BMPS6-2.048#TRMPBF uses a 6-lead ThinSOT™ (TSOT-23) package, 2.9mm × 1.6mm × 1.0mm profile, rated for –55°C to 125°C operation.
| 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 2.548V to 36V; requires ≥0.1µF bypass capacitor to GND for stability and transient immunity. |
| VOUT (Pin 5) | Main Output Terminal | Primary 2.048V reference output; must be connected to ≥1µF load capacitor for guaranteed stability. |
| VOUT (Pin 6) | Secondary Output Terminal | Internally tied to Pin 5; used to improve load regulation by routing high-current paths separately. |
| DNC (Pin 1) | Do Not Connect | Internally connected; external connection risks leakage-induced error or instability. |
| NC (Pin 3) | No Internal Connection | May be left floating, tied to GND, VIN, or VOUT - no functional impact on reference performance. |
Key Features
| Feature | Design Value |
|---|---|
| MP-grade temperature range | –55°C to 125°C operation - qualified for downhole instrumentation, aerospace avionics, and under-hood automotive ECUs. |
| Bidirectional output drive | ±10mA sourcing/sinking - eliminates need for external current mirrors in negative-reference or I/V converter configurations. |
| Low thermal hysteresis | 50ppm max over –55°C to 125°C cycle - ensures repeatable accuracy after thermal cycling in field-deployed equipment. |
| Low dropout & wide supply | 100mV dropout at 36V max input - supports single-supply designs across battery, 12V, 24V, and 36V industrial systems. |
| Integrated bandgap + buffer | Low 0.1Ω typical output impedance - maintains regulation under dynamic load steps without external compensation. |
Applications
| Automotive Engine Control Unit | High-Resolution Strain Gauge Interface |
|---|---|
Use Scenario: Provides excitation and reference for bridge-based knock sensors and MAP sensors in engine management systems exposed to under-hood temperatures. IC Role / Device Role / Timing Role: Precision 2.048V reference for ratiometric ADC conversion and analog signal conditioning. Use Value: Enables <±0.1% total measurement error over lifetime, meeting AEC-Q100 Grade 0 requirements for critical powertrain functions. | Use Scenario: Supplies stable excitation and reference to 350Ω foil strain gauges in structural health monitoring systems for bridges and wind turbines. IC Role / Device Role / Timing Role: Dual-role reference: excitation source for Wheatstone bridge and ADC reference for differential measurement. Use Value: 1.6ppmP-P noise and 20ppm/°C drift ensure <0.005% full-scale error across –40°C to 85°C ambient, supporting 24-bit resolution. |
| Portable Battery-Powered DMM | Medical Patient Monitor Analog Front-End |
Use Scenario: Serves as primary reference for auto-ranging 6½-digit multimeter using successive approximation and sigma-delta ADCs. IC Role / Device Role / Timing Role: Low-noise, low-power reference for multi-range voltage/current measurement subsystems. Use Value: 350µA supply current and 100mV dropout allow operation from single 3.7V Li-ion cell across full discharge curve without regulation loss. | Use Scenario: Provides calibrated reference for ECG, SpO₂, and NIBP analog signal chains in Class II medical devices. IC Role / Device Role / Timing Role: Safety-isolated reference source for isolated ADCs and programmable gain amplifiers in patient-connected circuits. Use Value: ±0.10% initial accuracy and 60ppm/√kHr long-term drift meet IEC 60601-2-27 requirements for 8-hour clinical accuracy retention. |
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, 1.2mA supply current | Higher accuracy and lower drift but larger package and higher power; not rated beyond 125°C | Select for lab-grade instrumentation where ultra-low drift outweighs size and temperature range constraints. |
| ADR4520BRZ | 2.048V, ±0.02% initial accuracy, 2ppm/°C drift, SOIC-8, 950µA supply current, AEC-Q100 Grade 1 | Superior accuracy/drift specs and automotive qualification, but lacks MP-grade –55°C rating and ±10mA sinking capability | Choose for automotive cabin modules where Grade 1 suffices and bidirectional drive is unnecessary. |
Compared with REF5020IDR and ADR4520BRZ, the LT6654BMPS6-2.048#TRMPBF uniquely combines MP-grade temperature range, ±10mA bidirectional drive, and 1.6ppmP-P noise in a space-constrained TSOT-23 - making it optimal for ruggedized portable and under-hood applications where size, thermal robustness, and dynamic load handling are prioritized over sub-10ppm drift.
Availability
LT6654BMPS6-2.048#TRMPBF is available at Aetrix Electronics and suitable for high-reliability industrial sensing, automotive control modules, and portable test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6654BMPS6-2.048#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 voltage reference applications demanding low noise, wide supply range, and extended temperature operation - particularly in harsh-environment data acquisition and safety-critical control systems.
FAQ
What is the maximum operating temperature range for the LT6654BMPS6-2.048#TRMPBF?
The LT6654BMPS6-2.048#TRMPBF is fully specified from –55°C to 125°C, qualifying it as an MP-grade device. This extended range exceeds standard industrial (–40°C to 85°C) and automotive H-grade (–40°C to 125°C) specifications, enabling use in downhole tools, aerospace avionics, and under-hood engine control units where extreme thermal stress occurs.
Does the LT6654BMPS6-2.048#TRMPBF support sinking current, and how much?
Yes, the LT6654BMPS6-2.048#TRMPBF can sink up to –10mA while maintaining specified accuracy and regulation. This bidirectional capability allows it to function as a precision negative reference or drive current into low-impedance loads such as transimpedance amplifier feedback networks - a feature not found in many competing references like REF5020IDR.
What is the typical output noise performance of the LT6654BMPS6-2.048#TRMPBF?
The LT6654BMPS6-2.048#TRMPBF delivers 1.6ppmP-P (0.1Hz to 10Hz), equivalent to ~3.3µVP-P at 2.048V. This ultra-low noise supports high-resolution data acquisition systems targeting >18-bit effective number of bits (ENOB), especially when paired with low-noise ADCs and proper PCB layout practices including ground plane separation and local decoupling.
Can the LT6654BMPS6-2.048#TRMPBF operate with a 3.3V supply rail?
Yes - the LT6654BMPS6-2.048#TRMPBF requires only VIN ≥ VOUT + 0.5V = 2.548V for stable operation, and its dropout is specified at just 100mV max. With a 3.3V rail, it operates well within specification, delivering full ±10mA drive and maintaining all accuracy, noise, and drift parameters across temperature.
Is an output capacitor required for stability with the LT6654BMPS6-2.048#TRMPBF?
Yes, a minimum 1µF ceramic output capacitor is mandatory for stable operation of the LT6654BMPS6-2.048#TRMPBF. This capacitor suppresses high-frequency oscillation and improves transient response during load steps. The datasheet specifies 1µF as optimum; larger values (e.g., 10µF) further reduce noise but increase turn-on time to ~200µs.
LT6654BMPS6-2.048#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):
- 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#TRMPBF FAQ
1.How can I place an order for LT6654BMPS6-2.048#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6654BMPS6-2.048#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 LT6654BMPS6-2.048#TRMPBF reliable?
The price and inventory of LT6654BMPS6-2.048#TRMPBF 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#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT6654BMPS6-2.048#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6654BMPS6-2.048#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6654BMPS6-2.048#TRMPBF?
LT6654BMPS6-2.048#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6654BMPS6-2.048#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 LT6654BMPS6-2.048#TRMPBF?
For technical support, including LT6654BMPS6-2.048#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6654BMPS6-2.048#TRMPBF requirements.
6.How does Aetrix verify that LT6654BMPS6-2.048#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT6654BMPS6-2.048#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 LT6654BMPS6-2.048#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT6654BMPS6-2.048#TRMPBF?
All LT6654BMPS6-2.048#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6654BMPS6-2.048#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 LT6654BMPS6-2.048#TRMPBF part is unused and in its original packaging.
Return procedure for LT6654BMPS6-2.048#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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