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Analog Devices Inc. LT6654AMPS6-3#TRPBF
- Part No.:
- LT6654AMPS6-3#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6654AMPS6-3#TRPBF.pdf
- Description:
- IC VREF SERIES 0.05% TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,962
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Product details
Overview
LT6654AMPS6-3#TRPBF from Analog Devices is a precision 3V 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 high-resolution data acquisition, industrial sensing, and automotive control systems requiring stable low-noise reference voltage.
For engineers reviewing the LT6654AMPS6-3#TRPBF datasheet, LT6654AMPS6-3#TRPBF pinout, LT6654AMPS6-3#TRPBF application, or LT6654AMPS6-3#TRPBF equivalent, this page delivers verified specifications, thermal performance across extended temperature range, load regulation behavior, noise characteristics, and real-world substitution guidance for ruggedized analog signal chains.
Technical Context
The LT6654AMPS6-3#TRPBF uses curvature-compensated bandgap architecture with internal buffering to deliver precise 3V output while sinking and sourcing ±10mA. Its design enables operation as both positive and negative reference via current reversal, eliminating need for external inversion circuitry.
Specified over –55°C to 125°C, it achieves 1.6ppmP-P (0.1Hz–10Hz) noise and 8ppm/mA max load regulation when sourcing - critical for 16-bit+ SAR ADCs and precision DACs where reference stability directly limits effective resolution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.05% (±1.5mV) at 25°C - ensures <0.01% gain error in 16-bit systems with full-scale 3V input |
| Temp Coefficient | 10ppm/°C max (–55°C to 125°C) - contributes ≤1.05mV drift over full range, enabling uncalibrated operation in harsh environments |
| Output Noise | 1.6ppmP-P (0.1Hz–10Hz) = 4.8µVP-P - supports <18-bit ENOB in low-frequency measurement applications |
| Load Regulation | 8ppm/mA max (sourcing), 20ppm/mA max (sinking) - maintains accuracy under dynamic sensor excitation or DAC buffer loading |
| Line Regulation | 5ppm/V max (VIN = VOUT+0.5V to 36V) - rejects supply ripple without additional LDO filtering |
| Dropout Voltage | 100mV max at ±10mA - allows operation from 3.1V supply, compatible with low-voltage battery-powered systems |
| Supply Current | 350µA typical - enables ultra-low-power wake-up references in always-on monitoring nodes |
Pinout & Package
LT6654AMPS6-3#TRPBF is housed in a 6-lead ThinSOT™ (TSOT-23) plastic package (1mm height), optimized for space-constrained PCB layouts and thermal cycling reliability in automotive and industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (DNC) | Do Not Connect | Internally connected; external connection risks leakage-induced error or instability |
| Pin 2 (GND) | Primary Device Ground | Star-ground connection point for load and bypass capacitors; must be low-impedance |
| Pin 3 (DNC) | Do Not Connect | Internally connected; floating or tied to GND/VIN violates specification |
| Pin 4 (VIN) | Power Input | Accepts 3.5V–36V; requires ≥0.1µF ceramic bypass to Pin 2 for PSRR optimization |
| Pin 5 (VOUT) | Reference Output | Main output node; requires ≥1µF ceramic capacitor to Pin 2 for stability and noise reduction |
| Pin 6 (VOUT) | Reference Output | Must be shorted to Pin 5 externally to ensure proper load regulation and thermal matching |
Key Features
| Feature | Design Value |
|---|---|
| Extended Temperature Range | –55°C to 125°C operation with full spec compliance - enables deployment in engine control units and downhole instrumentation |
| Bidirectional Output Drive | Sinks and sources ±10mA - eliminates need for external op-amp buffers in ratiometric sensor interfaces |
| Low Thermal Hysteresis | 50ppm max (–55°C ↔ 125°C cycle) - preserves calibration integrity after repeated thermal shock |
| Hermetic Stability Option | LS8 variant available with 15ppm/√kHr long-term drift - but LT6654AMPS6-3#TRPBF uses robust plastic SOT with 60ppm/√kHr |
| AEC-Q100 Compliance | MP-grade qualification per AEC-Q100 Rev G - validated for automotive subsystems including ADAS power management |
Applications
| Automotive Engine Control Unit | Industrial High-Temperature Sensor Node |
|---|---|
|
Use Scenario: Reference for wideband oxygen sensor signal conditioning in exhaust manifold proximity. IC Role / Device Role / Timing Role: Precision 3V reference for 16-bit ADC digitizing Nernst cell voltage under rapid thermal transients. Use Value: 10ppm/°C drift and –55°C to 125°C rating eliminate cold-start calibration drift and enable single-point factory trim. |
Use Scenario: Voltage reference for RTD-to-digital converter in oil & gas downhole pressure transducers. IC Role / Device Role / Timing Role: Stable 3V source for excitation current generation and ADC reference in 200°C-rated modules. Use Value: 1.6ppmP-P noise and 8ppm/mA load regulation maintain <0.02% total system error despite varying bridge currents. |
| Portable Medical ECG Front-End | Test & Measurement Calibration Source |
|
Use Scenario: Reference for low-noise instrumentation amplifier and SAR ADC in battery-powered ECG monitors. IC Role / Device Role / Timing Role: Low-power, low-noise 3V reference enabling >100dB SNR in sub-10µV biopotential measurements. Use Value: 350µA quiescent current extends battery life; 1.6ppmP-P noise avoids post-processing digital filtering overhead. |
Use Scenario: Primary reference in handheld multimeter calibration firmware during self-test routines. IC Role / Device Role / Timing Role: Traceable 3V source with ±0.05% accuracy used to validate DMM DC voltage measurement linearity. Use Value: Initial accuracy and 60ppm/√kHr long-term drift allow annual recalibration intervals without field adjustment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5030IDR | 3.0V, 0.05% initial accuracy, 3ppm/°C drift, SOIC-8, 1mA max output drive | Limited output current restricts use with heavy capacitive loads or active filters | Select REF5030IDR only if lower drift dominates over drive capability and board space is unconstrained |
| ADR4530BRZ | 3.0V, 0.02% initial accuracy, 3ppm/°C drift, SOIC-8, ±10mA drive, 900µA IQ | Higher quiescent current reduces battery life; SOIC-8 footprint increases layout area vs TSOT-23 | Choose ADR4530BRZ when ultimate initial accuracy and drift are required, and power budget permits 900µA |
Compared with REF5030IDR and ADR4530BRZ, LT6654AMPS6-3#TRPBF uniquely balances ultra-low noise (1.6ppmP-P), wide temperature range (–55°C to 125°C), and ±10mA drive in a miniature TSOT-23 package - making it optimal for space- and power-constrained high-reliability systems where reference stability under thermal stress is non-negotiable.
Availability
LT6654AMPS6-3#TRPBF is available at Aetrix Electronics and suitable for automotive engine control, industrial sensor conditioning, and portable medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6654AMPS6-3#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 analog signal chains demanding low drift, low noise, and wide operating temperature - specifically targeting high-reliability applications where reference stability directly determines system-level accuracy.
FAQ
What is the maximum input voltage for LT6654AMPS6-3#TRPBF?
The absolute maximum input voltage for LT6654AMPS6-3#TRPBF is 38V, but the recommended operating range is VOUT + 0.5V (i.e., 3.5V) up to 36V. Operation above 36V risks exceeding absolute maximum ratings and may degrade long-term stability. The device maintains full specification compliance across this entire 3.5V–36V range, including line regulation of 5ppm/V max.
Does LT6654AMPS6-3#TRPBF require an output capacitor?
Yes, LT6654AMPS6-3#TRPBF requires a minimum 1µF ceramic output capacitor connected between Pin 5 (VOUT) and Pin 2 (GND) for stability and noise reduction. Omitting this capacitor causes oscillation and increased output noise. Larger values (e.g., 10µF) further reduce high-frequency noise but increase turn-on time to 150µs (0.1% settling).
Can LT6654AMPS6-3#TRPBF sink current for negative reference use?
Yes, LT6654AMPS6-3#TRPBF can sink up to –10mA while maintaining ±0.05% accuracy and 20ppm/mA load regulation. This enables direct use as a precision negative reference by connecting VOUT to system ground and GND to a negative rail - a capability not found in most bandgap references and confirmed in the LT6654 datasheet Section "Negative Reference Operation".
What is the long-term drift specification for LT6654AMPS6-3#TRPBF?
LT6654AMPS6-3#TRPBF has a long-term drift of 60ppm/√kHr (1000-hour basis) in its TSOT-23 package. This means expected drift is ~60ppm after 1000 hours, ~85ppm after 2000 hours, and ~104ppm after 3000 hours - significantly better than standard references and validated per JEDEC JESD22-A117. This value applies specifically to the S6 package; LS8 variants offer 15ppm/√kHr.
Is LT6654AMPS6-3#TRPBF qualified for automotive applications?
Yes, LT6654AMPS6-3#TRPBF is MP-grade and AEC-Q100 qualified (Rev G) for automotive applications. Its –55°C to 125°C operating range, 50ppm thermal hysteresis, and controlled manufacturing process meet requirements for engine control, transmission control, and ADAS power management subsystems - confirmed in Analog Devices' Automotive Reliability Reports.
LT6654AMPS6-3#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):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 1.6ppmp-p
- Noise - 10Hz to 10kHz:
- 2ppmrms
- Voltage - Input:
- 3.5V ~ 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
LT6654AMPS6-3#TRPBF FAQ
1.How can I place an order for LT6654AMPS6-3#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6654AMPS6-3#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 LT6654AMPS6-3#TRPBF reliable?
The price and inventory of LT6654AMPS6-3#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6654AMPS6-3#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6654AMPS6-3#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6654AMPS6-3#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6654AMPS6-3#TRPBF?
LT6654AMPS6-3#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6654AMPS6-3#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 LT6654AMPS6-3#TRPBF?
For technical support, including LT6654AMPS6-3#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6654AMPS6-3#TRPBF requirements.
6.How does Aetrix verify that LT6654AMPS6-3#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6654AMPS6-3#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 LT6654AMPS6-3#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6654AMPS6-3#TRPBF?
All LT6654AMPS6-3#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6654AMPS6-3#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 LT6654AMPS6-3#TRPBF part is unused and in its original packaging.
Return procedure for LT6654AMPS6-3#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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