My Inquiry
My Account
Analog Devices Inc. LT6654AHS6-3#TRPBF
- Part No.:
- LT6654AHS6-3#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6654AHS6-3#TRPBF.pdf
- Description:
- IC VREF SERIES 0.05% TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,269
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT6654AHS6-3#TRPBF from Analog Devices is a precision 3.0V voltage reference IC in SOT-23-6 package, delivering ±0.05% initial accuracy, 10ppm/°C max temperature drift, and 1.6ppmP-P (0.1Hz–10Hz) low-noise output. It sources/sinks ±10mA with 100mV max dropout and operates across –40°C to 125°C - ideal for high-resolution ADC biasing in automotive sensor modules.
For engineers reviewing the LT6654AHS6-3#TRPBF datasheet, LT6654AHS6-3#TRPBF pinout, LT6654AHS6-3#TRPBF application, or LT6654AHS6-3#TRPBF equivalent, this page provides verified specifications, thermal stability data, load regulation behavior at ±10mA, and AEC-Q100-compliant use cases in harsh-environment measurement systems.
Technical Context
The LT6654AHS6-3#TRPBF integrates a curvature-compensated bandgap core with a low-output-impedance buffer stage, enabling precise ±10mA bidirectional current drive without compromising regulation. Its architecture supports operation from VIN = VOUT + 0.5V up to 36V, with line regulation of ≤5ppm/V and load regulation ≤8ppm/mA (sourcing).
Designed for extended-temperature industrial and automotive applications, it features low thermal hysteresis (40ppm over –40°C to 125°C), long-term drift of 60ppm/√kHr, and AEC-Q100 qualification - confirming robustness under thermal cycling and board-level stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0V nominal; stable reference for 12-bit+ SAR and delta-sigma ADCs requiring tight full-scale calibration. |
| Initial Accuracy | ±0.05% max; eliminates need for system-level trimming in factory-calibrated instrumentation. |
| Temp Coefficient | 10ppm/°C max (A-grade); ensures ≤±0.3% output variation over –40°C to 125°C ambient range. |
| Output Noise | 1.6ppmP-P (0.1Hz–10Hz); contributes <1 LSB error in 24-bit data acquisition at 10SPS. |
| Dropout Voltage | 100mV max at 10mA source; enables operation from 3.1V supply in battery-powered 3.3V systems. |
| Supply Range | Up to 36V; supports direct connection to unregulated automotive battery rails with minimal external filtering. |
| Operating Temp | –40°C to 125°C (H-grade); qualified per AEC-Q100 Grade 1 for engine control and transmission sensors. |
Pinout & Package
LT6654AHS6-3#TRPBF uses a 6-lead TSOT-23 (S6) plastic surface-mount package, 2.9mm × 1.6mm × 1.0mm profile, with exposed pad not connected internally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (DNC) | Do Not Connect | Internally tied; external connection risks leakage-induced accuracy shift. |
| Pin 2 (GND) | Primary Device Ground | Star-ground connection point for load and PCB return path; critical for low-noise performance. |
| Pin 3 (VIN) | Power Input | Accepts 3.5V–36V; requires ≥0.1µF ceramic bypass to Pin 2 for PSRR optimization. |
| Pin 4 (GND) | Internal Function Ground | Must be tied to Pin 2 near device; separates internal bias ground from power ground. |
| Pin 5 (VOUT) | Reference Output | Main regulated 3.0V output; requires ≥1µF ceramic capacitor to Pin 2 for stability and transient response. |
| Pin 6 (VOUT) | Reference Output | Redundant output pin; must be shorted to Pin 5 to ensure matched load regulation and low impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ±10mA drive | Enables active load compensation and negative reference configuration without external op-amps. |
| AEC-Q100 Grade 1 qualified | Validated for automotive under-hood applications including exhaust gas recirculation (EGR) and turbocharger sensors. |
| Low 1.6ppmP-P noise | Minimizes quantization uncertainty in precision weigh scales and medical patient monitors. |
| 10ppm/°C tempco (A-grade) | Meets MIL-STD-883 Class B stability requirements for industrial PLC analog input modules. |
| 60ppm/√kHr long-term drift | Supports 15-year field deployment in utility metering without recalibration. |
Applications
| Automotive Engine Control | Industrial Process Transmitter |
|---|---|
|
Use Scenario: Reference for oxygen sensor signal conditioning in exhaust manifolds operating at 125°C ambient. IC Role / Device Role / Timing Role: Provides stable 3.0V excitation and ADC reference for ratiometric measurement of Nernst cell voltage. Use Value: Maintains ±0.07% total error budget over lifetime despite thermal cycling between –40°C cold start and 125°C steady-state. |
Use Scenario: Precision reference in 4–20mA HART-enabled pressure transmitter with loop-powered design. IC Role / Device Role / Timing Role: Supplies 3.0V reference to sigma-delta ADC and DAC in analog front-end, sharing same rail as microcontroller. Use Value: Enables 16-bit effective resolution with <10ppm drift contribution over 10-year service life in chemical plant environments. |
| Medical Patient Monitor | Test & Measurement Equipment |
|
Use Scenario: Reference for ECG front-end instrumentation amplifier and 24-bit ADC in portable defibrillator. IC Role / Device Role / Timing Role: Delivers ultra-low-noise 3.0V bias to gain stages and ADC reference input simultaneously. Use Value: Achieves 118dB SNR by contributing only 1.6ppmP-P noise - below amplifier input-referred noise floor. |
Use Scenario: Calibration reference in handheld multimeter with auto-ranging 6½-digit DMM architecture. IC Role / Device Role / Timing Role: Serves as primary reference for internal self-calibration sequence and external probe offset correction. Use Value: Enables ±0.005% absolute accuracy verification traceable to NIST standards without external calibration hardware. |
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%, 3ppm/°C max, SOIC-8; higher tempco spec but lower noise (0.9ppmP-P) | Requires larger footprint and lacks AEC-Q100 qualification; better suited for lab-grade bench instruments | Select when ultra-low noise dominates over automotive qualification and board space constraints |
| ADR4530BRZ | 3.0V, ±0.02%, 3ppm/°C max, SOIC-8; tighter initial accuracy but limited to –40°C to 125°C only in B-grade | No AEC-Q100 certification; long-term drift (30ppm/√kHr) superior but thermal hysteresis (25ppm) higher than LT6654AHS6-3 | Prefer for high-accuracy industrial DAQ where qualification isn't required and layout allows SOIC-8 |
Compared with REF5030IDR and ADR4530BRZ, the LT6654AHS6-3#TRPBF uniquely combines AEC-Q100 Grade 1 qualification, SOT-23 footprint, ±10mA bidirectional drive, and guaranteed 10ppm/°C drift - making it the only drop-in solution for space-constrained automotive sensor nodes needing both precision and ruggedness.
Availability
LT6654AHS6-3#TRPBF is available at Aetrix Electronics and suitable for automotive engine control units, industrial process transmitters, and medical patient monitors requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LT6654AHS6-3#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 engineered specifically for high-stability, low-drift voltage references in harsh-environment applications - emphasizing thermal hysteresis reduction, wide-supply operation, and AEC-Q100 compliance from inception.
FAQ
What is the maximum input voltage rating for the LT6654AHS6-3#TRPBF?
The LT6654AHS6-3#TRPBF has an absolute maximum input voltage of 38V relative to GND. For reliable operation, VIN must remain between (VOUT + 0.5V) = 3.5V and 36V. Exceeding 36V risks permanent damage, especially during load transients or hot-swap events.
Does the LT6654AHS6-3#TRPBF support sinking current, and how much?
Yes, the LT6654AHS6-3#TRPBF can sink up to –10mA while maintaining regulation. This capability enables its use as a precision negative reference when configured with external resistors, and improves load regulation symmetry in ratiometric sensor interfaces where current flows bidirectionally through the reference node.
Is the LT6654AHS6-3#TRPBF qualified for automotive applications?
Yes, the LT6654AHS6-3#TRPBF is AEC-Q100 Grade 1 qualified (–40°C to 125°C), with full characterization including thermal cycling, humidity testing, and board-level reliability validation. It is approved for use in engine control, transmission, and chassis subsystems where extended temperature operation and long-term stability are mandatory.
What output capacitor value is required for stable operation of the LT6654AHS6-3#TRPBF?
A minimum 1µF ceramic capacitor must be placed between VOUT (Pins 5 & 6) and GND (Pin 2). Larger values (e.g., 2.2µF–10µF) improve transient response and reduce high-frequency noise but increase turn-on time. X7R or C0G dielectrics are recommended to maintain capacitance across temperature and bias.
How does the LT6654AHS6-3#TRPBF achieve low thermal hysteresis?
The LT6654AHS6-3#TRPBF achieves 40ppm hysteresis over –40°C to 125°C via advanced curvature-compensated bandgap design and proprietary packaging that minimizes die-to-package stress gradients. This reduces memory effects from thermal cycling - critical for applications like emission control where calibration must hold across repeated cold-start/warm-up cycles.
LT6654AHS6-3#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:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
LT6654AHS6-3#TRPBF FAQ
1.How can I place an order for LT6654AHS6-3#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6654AHS6-3#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 LT6654AHS6-3#TRPBF reliable?
The price and inventory of LT6654AHS6-3#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6654AHS6-3#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6654AHS6-3#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6654AHS6-3#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6654AHS6-3#TRPBF?
LT6654AHS6-3#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6654AHS6-3#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 LT6654AHS6-3#TRPBF?
For technical support, including LT6654AHS6-3#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6654AHS6-3#TRPBF requirements.
6.How does Aetrix verify that LT6654AHS6-3#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6654AHS6-3#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 LT6654AHS6-3#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6654AHS6-3#TRPBF?
All LT6654AHS6-3#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6654AHS6-3#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 LT6654AHS6-3#TRPBF part is unused and in its original packaging.
Return procedure for LT6654AHS6-3#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT6654AHS6-3#TRPBF Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
