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Analog Devices Inc. LT6654BMPS6-3.3#TRPBF
- Part No.:
- LT6654BMPS6-3.3#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6654BMPS6-3.3#TRPBF.pdf
- Description:
- IC VREF SERIES 0.1% TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,561
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Product details
Overview
LT6654BMPS6-3.3#TRPBF from Analog Devices is a precision 3.3V 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 requiring stable excitation or ADC reference.
For engineers reviewing the LT6654BMPS6-3.3#TRPBF datasheet, LT6654BMPS6-3.3#TRPBF pinout, LT6654BMPS6-3.3#TRPBF application, or LT6654BMPS6-3.3#TRPBF equivalent, key selection criteria include guaranteed operation over –55°C to 125°C, low 1.7ppmP-P (0.1Hz–10Hz) noise, 8ppm/mA load regulation (sourcing), and AEC-Q100-compliant performance in harsh environments.
Technical Context
The LT6654BMPS6-3.3#TRPBF uses curvature-compensated bandgap architecture with internal buffering to deliver precise, low-drift 3.3V output across its full –55°C to 125°C operating range. Its dual-sourcing/sinking capability enables use as both positive and negative reference in bipolar systems.
It features low dropout (100mV max at 10mA sourcing), 5ppm/V line regulation up to 36V, and 150µs turn-on time with 1µF load capacitance - enabling fast settling in precision measurement and closed-loop regulator applications without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3V ±0.10% (±3.3mV) initial tolerance at 25°C - ensures accurate ADC reference or sensor biasing without calibration. |
| Temp Coefficient | 20ppm/°C max (B-grade) - limits drift to ±2.5mV over –55°C to 125°C span, critical for uncalibrated field instruments. |
| Output Noise | 1.7ppmP-P (0.1Hz–10Hz) - translates to 5.6µVP-P, enabling <18-bit effective resolution in precision DAQ. |
| Load Regulation | 8ppm/mA max (sourcing), 20ppm/mA max (sinking) - maintains stability under dynamic current loads in multiplexed sensor arrays. |
| Supply Range | Up to 36V input with 100mV dropout - allows direct connection to 24V industrial rails without pre-regulation. |
| Operating Temp | –55°C to 125°C (MP-grade) - qualified for under-hood automotive and downhole industrial deployments. |
| Output Drive | ±10mA sourcing/sinking - drives 100Ω loads directly or supplies multiple op-amps without buffer stages. |
Pinout & Package
LT6654BMPS6-3.3#TRPBF is housed in a 6-lead ThinSOT™ (TSOT-23) package, 1mm profile, RoHS-compliant, with thermal pad exposed on bottom for enhanced power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (DNC) | Do Not Connect | Internally connected; external connection risks leakage current and accuracy degradation. |
| Pin 2 (GND) | Primary Device Ground | Star-ground connection point for load and PCB return; must be low-impedance path to minimize ground bounce. |
| Pin 3 (VIN) | Power Input | Accepts 3.8V to 36V; requires ≥0.1µF bypass capacitor to GND for PSRR optimization and transient immunity. |
| Pin 4 (GND) | Internal Function Ground | Must be tied to Pin 2 near device; forms internal reference ground node - not for signal routing. |
| Pin 5 (VOUT) | Reference Output | 3.3V buffered output; requires ≥1µF ceramic load capacitor for stability and low-noise performance. |
| Pin 6 (VOUT) | Reference Output (Tied) | Internally connected to Pin 5; must be shorted externally to ensure proper load regulation and thermal symmetry. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Temperature Operation | –55°C to 125°C MP-grade specification - eliminates derating concerns in extreme ambient conditions. |
| Bipolar Output Capability | Sinks and sources ±10mA - enables use as negative reference by sinking current into virtual ground, preserving accuracy. |
| Low Thermal Hysteresis | 50ppm max (–55°C ↔ 125°C cycle) - ensures repeatable accuracy after thermal cycling in automotive ECUs. |
| High PSRR | –70dB at 100Hz, –40dB at 1MHz - rejects ripple from noisy DC-DC converters feeding industrial sensors. |
| Fast Turn-On | 150µs to 0.1% settling with 1µF load - supports power-gated systems requiring rapid wake-up and measurement. |
| AEC-Q100 Qualified | Grade 1 (–40°C to 125°C) and MP-grade extended qualification - meets automotive reliability requirements for engine control. |
Applications
| Automotive Engine Control Unit | Industrial Pressure Transmitter |
|---|---|
|
Use Scenario: Provides stable 3.3V reference for analog front-end of knock sensor signal conditioning in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Precision voltage reference for ADC and op-amp biasing in high-vibration, high-temperature under-hood environment. Use Value: Maintains ±0.1% accuracy over –40°C to 125°C, ensuring consistent knock detection threshold without recalibration across vehicle life. |
Use Scenario: Supplies excitation and reference for 4–20mA loop-powered pressure sensor with integrated sigma-delta ADC. IC Role / Device Role / Timing Role: Dual-role reference: excites Wheatstone bridge and references 24-bit ADC conversion. Use Value: 1.7ppmP-P noise and 20ppm/°C drift enable <0.05%FS total error over full industrial temperature range. |
| Medical Patient Monitor ADC | Downhole Oilfield Data Logger |
|
Use Scenario: Reference for ECG/EEG analog-to-digital conversion in portable patient monitors requiring FDA-cleared accuracy. IC Role / Device Role / Timing Role: Low-noise, low-drift reference for 18-bit SAR ADC sampling biopotential signals. Use Value: Sub-6µVP-P noise and ±0.10% initial accuracy meet IEC 60601-2-27 requirements for diagnostic-grade signal fidelity. |
Use Scenario: Reference for high-temperature (150°C+) strain gauge and thermocouple measurements in oil/gas well logging tools. IC Role / Device Role / Timing Role: Primary voltage reference in sealed, battery-powered downhole telemetry module. Use Value: Guaranteed operation to 125°C and long-term drift of 60ppm/√kHr ensure >5-year calibration stability in inaccessible deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5033QPWRQ1 | 3.3V, ±0.05% initial accuracy, 3ppm/°C drift, 1.1ppmP-P noise, SOIC-8 package | Higher accuracy and lower drift but limited to –40°C to 125°C; no MP-grade –55°C rating | Preferred where ultra-low drift dominates over extended cold operation; requires PCB redesign for SOIC footprint. |
| ADR4533BRZ | 3.3V, ±0.02% initial accuracy, 2ppm/°C drift, 1.2ppmP-P noise, SOIC-8, 125°C max | Superior specs but only rated to 125°C (not –55°C); higher cost and larger package | Best for lab instrumentation or non-extreme environments needing highest stability; not drop-in for LT6654BMPS6-3.3#TRPBF's TSOT-23 layout. |
Compared with REF5033QPWRQ1 and ADR4533BRZ, the LT6654BMPS6-3.3#TRPBF trades minor accuracy and noise for guaranteed –55°C operation, TSOT-23 space savings, and proven robustness in automotive and downhole shock/vibe environments - making it optimal for ruggedized embedded systems where temperature range and size are primary constraints.
Availability
LT6654BMPS6-3.3#TRPBF is available at Aetrix Electronics and suitable for automotive engine control units, industrial pressure transmitters, and medical patient monitor ADCs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6654BMPS6-3.3#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 reference applications demanding low noise, wide temperature operation, and high output drive - targeting automotive, industrial sensing, and high-resolution data acquisition where accuracy must survive harsh environments.
FAQ
What is the guaranteed operating temperature range for LT6654BMPS6-3.3#TRPBF?
The LT6654BMPS6-3.3#TRPBF is specified for continuous operation from –55°C to 125°C (MP-grade), with all electrical parameters fully characterized across this range. This includes initial accuracy, temperature coefficient, load regulation, and noise performance - unlike commercial or industrial grades that only guarantee partial specs at extremes.
Does LT6654BMPS6-3.3#TRPBF require an output capacitor, and what value is recommended?
Yes, LT6654BMPS6-3.3#TRPBF requires a minimum 1µF ceramic output capacitor (X7R or better) connected directly between VOUT and GND for stability and low-noise operation. Larger values (e.g., 10µF) further reduce noise but increase turn-on time; the 1µF value achieves optimal balance of settling speed (150µs) and broadband noise suppression.
Can LT6654BMPS6-3.3#TRPBF sink current, and how does that affect its use as a negative reference?
Yes, LT6654BMPS6-3.3#TRPBF sinks up to 10mA while maintaining ±0.10% accuracy and 20ppm/°C drift. When configured with its output tied to a virtual ground, it functions as a precision negative reference - enabling bipolar signal chains without additional components, and preserving the same low-noise and drift performance as in positive-reference mode.
How does the 20ppm/°C temperature coefficient of LT6654BMPS6-3.3#TRPBF translate to actual voltage drift over temperature?
At 3.3V output, the 20ppm/°C max coefficient results in ≤±2.5mV total drift across the full –55°C to 125°C range (180°C span). This is calculated as 3.3V × 20ppm/°C × 180°C = 11.88mV worst-case, but datasheet limits specify ≤±2.5mV due to curvature compensation - verified by test data in Figure 6654 G10 for 3.3V variants.
Is LT6654BMPS6-3.3#TRPBF AEC-Q100 qualified, and which grade applies?
Yes, LT6654BMPS6-3.3#TRPBF is AEC-Q100 qualified per Grade 1 (–40°C to 125°C) and extends qualification to MP-grade (–55°C to 125°C) for automotive under-hood and transmission control applications. Qualification includes stress testing for HTOL, TCT, and ESD per AEC-Q100 Rev H, with full reliability reports available from Analog Devices upon request.
LT6654BMPS6-3.3#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):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 1.7ppmp-p
- Noise - 10Hz to 10kHz:
- 2ppmrms
- Voltage - Input:
- 3.8V ~ 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
LT6654BMPS6-3.3#TRPBF FAQ
1.How can I place an order for LT6654BMPS6-3.3#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6654BMPS6-3.3#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 LT6654BMPS6-3.3#TRPBF reliable?
The price and inventory of LT6654BMPS6-3.3#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6654BMPS6-3.3#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6654BMPS6-3.3#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6654BMPS6-3.3#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6654BMPS6-3.3#TRPBF?
LT6654BMPS6-3.3#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6654BMPS6-3.3#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 LT6654BMPS6-3.3#TRPBF?
For technical support, including LT6654BMPS6-3.3#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6654BMPS6-3.3#TRPBF requirements.
6.How does Aetrix verify that LT6654BMPS6-3.3#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6654BMPS6-3.3#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 LT6654BMPS6-3.3#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6654BMPS6-3.3#TRPBF?
All LT6654BMPS6-3.3#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6654BMPS6-3.3#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 LT6654BMPS6-3.3#TRPBF part is unused and in its original packaging.
Return procedure for LT6654BMPS6-3.3#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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