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Analog Devices Inc. LT6654AMPS6-2.5#TRPBF
- Part No.:
- LT6654AMPS6-2.5#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6654AMPS6-2.5#TRPBF.pdf
- Description:
- IC VREF SERIES 0.05% TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,852
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Product details
Overview
LT6654AMPS6-2.5#TRPBF from Analog Devices is a precision 2.5V 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 –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 LT6654AMPS6-2.5#TRPBF datasheet, LT6654AMPS6-2.5#TRPBF pinout, LT6654AMPS6-2.5#TRPBF application, or LT6654AMPS6-2.5#TRPBF equivalent, this page provides verified specifications, thermal performance across extended temperature range, low-noise operation (1.6ppmP-P, 0.1Hz–10Hz), load regulation behavior, and validated alternative options for design-in flexibility.
Technical Context
The LT6654AMPS6-2.5#TRPBF uses curvature-compensated bandgap architecture with internal buffering to deliver precise 2.5V output while sourcing or sinking ±10mA. Its design incorporates low thermal hysteresis (50ppm over –55°C to 125°C) and long-term stability of 60ppm/√kHr, enabling repeatable measurements in harsh environments.
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 across its –55°C to 125°C operating range - a key differentiator versus commercial-grade references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5V nominal; fixed precision reference for ADC/DAC biasing and sensor excitation circuits. |
| Initial Accuracy | ±0.05% max; ensures ≤1.25mV absolute error at 25°C without calibration. |
| Temp Coefficient | 10ppm/°C max; guarantees ≤300ppm (0.075mV) drift over full –55°C to 125°C range. |
| Output Noise | 1.6ppmP-P (0.1Hz–10Hz); contributes <0.004mV uncertainty in precision 24-bit DAQ systems. |
| Supply Range | Up to 36V; enables direct use with unregulated 24V industrial rails or automotive battery inputs. |
| Output Drive | ±10mA; supports driving 100Ω loads or multiple op-amp inputs without external buffers. |
| Operating Temp | –55°C to 125°C; qualified for extended-temperature industrial and under-hood automotive applications. |
Pinout & Package
LT6654AMPS6-2.5#TRPBF is housed in a 6-lead plastic TSOT-23 package (1mm profile), optimized for space-constrained PCB layouts and thermal performance in high-density systems.
| 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 Ground | Star-ground connection point for device and load; critical for low-noise performance. |
| Pin 3 (VIN) | Power Input | Accepts 2.55V to 36V; requires ≥0.1µF bypass capacitor to GND for stability. |
| Pin 4 (GND) | Internal Function Ground | Must be tied to Pin 2 near PCB ground plane to minimize ground loop errors. |
| Pin 5 (VOUT) | Reference Output | 2.5V buffered output; requires ≥1µF ceramic capacitor to GND for transient stability. |
| Pin 6 (VOUT) | Reference Output | Internally tied to Pin 5; connect externally to improve load regulation symmetry. |
Key Features
| Feature | Design Value |
|---|---|
| Sink & Source Capability | ±10mA output drive enables bidirectional current flow for active biasing and negative reference configurations. |
| Low Thermal Hysteresis | 50ppm over –55°C to 125°C cycle; minimizes calibration drift after thermal cycling in field-deployed equipment. |
| Wide Supply Tolerance | Operates up to 36V input; eliminates need for pre-regulation in 24V industrial or 12V/24V automotive systems. |
| Low Dropout Voltage | 100mV max at 10mA source; allows operation with only 2.6V supply for 2.5V output - critical for low-voltage battery systems. |
| AEC-Q100 Alignment | MP-grade temperature range (–55°C to 125°C) and robust construction support automotive subsystem qualification. |
Applications
| Industrial Process Transmitter | Automotive Engine Control Unit |
|---|---|
|
Use Scenario: 4–20mA current-loop transmitter with HART modulation in chemical plant field instruments. IC Role / Device Role / Timing Role: Precision 2.5V reference for DAC output scaling and sensor bridge excitation. Use Value: ±0.05% accuracy and 10ppm/°C drift ensure <0.1% total error over ambient and process temperature swings. |
Use Scenario: Cylinder pressure sensing and knock detection in gasoline direct injection engines. IC Role / Device Role / Timing Role: Stable reference for high-speed 16-bit ADC sampling of piezoelectric sensor signals. Use Value: 1.6ppmP-P noise and –55°C to 125°C operation maintain signal integrity during cold cranking and under-hood thermal transients. |
| High-Resolution Data Logger | Medical Patient Monitor Front-End |
|
Use Scenario: Portable environmental monitoring unit logging temperature, humidity, and gas concentration at 24-bit resolution. IC Role / Device Role / Timing Role: Primary reference for sigma-delta ADC and analog front-end gain calibration. Use Value: 60ppm/√kHr long-term drift ensures <50ppm calibration drift over 5-year product lifetime without field recalibration. |
Use Scenario: ECG/EEG analog signal conditioning module requiring ultra-low-noise DC biasing. IC Role / Device Role / Timing Role: Low-noise 2.5V reference for instrumentation amplifier common-mode setting and ADC reference. Use Value: 1.6ppmP-P (0.1Hz–10Hz) noise directly limits baseline wander and improves diagnostic SNR in sub-μV biopotential signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5025IDR | 2.5V, ±0.05%, 3ppm/°C max, SOIC-8, 0.95ppmP-P noise, 1mA drive, –40°C to 125°C | Limited output drive (1mA vs 10mA); unsuitable for direct sensor excitation or multi-load scenarios. | Select when ultra-low drift and noise outweigh drive requirements, and SOIC-8 footprint is acceptable. |
| ADR4525BRTZ-REEL7 | 2.5V, ±0.02%, 2ppm/°C max, SOT-23-5, 1.75ppmP-P noise, ±10mA drive, –40°C to 125°C | Higher initial accuracy but narrower temp range (no –55°C rating); not qualified for extended-temperature industrial use. | Prefer for lab-grade instrumentation where 0.02% accuracy is mandatory and operating environment stays above –40°C. |
Compared with REF5025IDR and ADR4525BRTZ-REEL7, the LT6654AMPS6-2.5#TRPBF uniquely combines MP-grade temperature range (–55°C to 125°C), ±10mA drive, and 10ppm/°C drift in a space-efficient TSOT-23 - making it the only option among the three qualified for under-hood automotive and arctic-rated industrial deployments without derating.
Availability
LT6654AMPS6-2.5#TRPBF is available at Aetrix Electronics and suitable for industrial process transmitters, automotive engine control units, and high-resolution data loggers requiring stable component supply across extreme temperature cycles and long service life.
Supply support for LT6654AMPS6-2.5#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-environment systems - emphasizing low drift, wide supply tolerance, and extended temperature operation without sacrificing noise or drive capability.
FAQ
What is the maximum input voltage for LT6654AMPS6-2.5#TRPBF?
The LT6654AMPS6-2.5#TRPBF supports input voltages up to 36V, with absolute maximum rating of 38V. Operation at 36V is fully specified across its –55°C to 125°C range, enabling direct interface with unregulated 24V industrial supplies or automotive battery rails without external regulators.
Does LT6654AMPS6-2.5#TRPBF support sinking current?
Yes, the LT6654AMPS6-2.5#TRPBF can sink up to 10mA while maintaining 2.5V output accuracy and low noise. This bidirectional capability allows it to serve as a precision negative reference when configured with external circuitry, unlike many unidirectional references.
What is the typical turn-on time for LT6654AMPS6-2.5#TRPBF?
The LT6654AMPS6-2.5#TRPBF achieves 0.1% settling in 150µs with a 1µF output capacitor and 0.1µF input bypass capacitor. This fast startup supports power-gated systems and battery-powered devices requiring rapid wake-up and measurement readiness.
Is LT6654AMPS6-2.5#TRPBF qualified for automotive applications?
While not AEC-Q100 certified as a standalone automotive grade part, the LT6654AMPS6-2.5#TRPBF's MP-grade temperature range (–55°C to 125°C), low thermal hysteresis, and robust construction make it widely deployed in automotive subsystems such as engine control, battery management, and ADAS sensor interfaces where extended temperature reliability is required.
What output capacitor value is required for stable operation of LT6654AMPS6-2.5#TRPBF?
A minimum 1µF ceramic capacitor is required between VOUT and GND for stable operation of LT6654AMPS6-2.5#TRPBF. Larger values (e.g., 10µF) further improve transient response and reduce output impedance at higher frequencies, though they increase turn-on time.
LT6654AMPS6-2.5#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:
- ±0.05%
- Temperature Coefficient:
- 10ppm/°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
LT6654AMPS6-2.5#TRPBF FAQ
1.How can I place an order for LT6654AMPS6-2.5#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6654AMPS6-2.5#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 LT6654AMPS6-2.5#TRPBF reliable?
The price and inventory of LT6654AMPS6-2.5#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6654AMPS6-2.5#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6654AMPS6-2.5#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6654AMPS6-2.5#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6654AMPS6-2.5#TRPBF?
LT6654AMPS6-2.5#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6654AMPS6-2.5#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 LT6654AMPS6-2.5#TRPBF?
For technical support, including LT6654AMPS6-2.5#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6654AMPS6-2.5#TRPBF requirements.
6.How does Aetrix verify that LT6654AMPS6-2.5#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6654AMPS6-2.5#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 LT6654AMPS6-2.5#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6654AMPS6-2.5#TRPBF?
All LT6654AMPS6-2.5#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6654AMPS6-2.5#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 LT6654AMPS6-2.5#TRPBF part is unused and in its original packaging.
Return procedure for LT6654AMPS6-2.5#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT6654AMPS6-2.5#TRPBF Tags
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