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Analog Devices Inc. LT6654AHS6-4.096#TRMPBF
- Part No.:
- LT6654AHS6-4.096#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6654AHS6-4.096#TRMPBF.pdf
- Description:
- IC VREF SERIES 0.05% TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,199
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Product details
Overview
LT6654AHS6-4.096#TRMPBF from Analog Devices is a precision 4.096V voltage reference IC with ±0.05% initial accuracy, 10ppm/°C max temperature drift, and 1.6ppmP-P (0.1Hz–10Hz) low-noise output. It delivers ±10mA output drive in a 6-lead TSOT-23 package, operates from 4.596V to 36V input, and is fully specified over –40°C to 125°C for high-reliability industrial and automotive sensing systems.
For engineers reviewing the LT6654AHS6-4.096#TRMPBF datasheet, LT6654AHS6-4.096#TRMPBF pinout, LT6654AHS6-4.096#TRMPBF application, or LT6654AHS6-4.096#TRMPBF equivalent, this page provides verified specifications, thermal stability data, load regulation behavior, SOT-23 terminal mapping, and validated alternative references for precision ADC biasing and closed-loop regulator feedback.
Technical Context
The LT6654AHS6-4.096#TRMPBF integrates a curvature-compensated bandgap core with a low-output-impedance buffer stage, enabling precise sourcing and sinking of ±10mA while maintaining 8ppm/mA max load regulation. Its internal architecture supports operation as both positive and negative reference via current-sinking capability.
It features 5ppm/V max line regulation up to 36V input, 100mV max dropout at 10mA source current, and 150µs typical turn-on time to 0.1% settling with 1µF load capacitance - all guaranteed across the full –40°C to 125°C operating range without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V nominal; matches 12-bit DAC/ADC full-scale binary scaling (212 = 4096) for zero-error digital-to-analog conversion. |
| Initial Accuracy | ±0.05% max (±2.05mV); eliminates need for post-manufacturing calibration in portable instrumentation. |
| Temp Coefficient | 10ppm/°C max; contributes ≤0.52mV error over –40°C to 125°C ambient, critical for uncooled field sensors. |
| Output Noise | 1.6ppmP-P (0.1Hz–10Hz); 6.6µVP-P noise floor enables 18+ ENOB in high-resolution data acquisition. |
| Supply Range | 4.596V to 36V; supports direct connection to 5V, 12V, or 24V industrial rails without external regulators. |
| Output Drive | ±10mA buffered output; drives 1µF capacitive loads and multiple op-amp inputs without gain error. |
| Dropout Voltage | 100mV max at 10mA source; allows operation with only 4.196V input, minimizing power loss in battery-powered designs. |
Pinout & Package
Package: 6-lead Plastic TSOT-23 (1mm profile), RoHS-compliant, tape-and-reel (500 pcs).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (DNC) | Do Not Connect | Internally connected; external connection risks leakage current injection and output instability. |
| Pin 2 (GND) | Primary Device Ground | Star-ground connection point for load return and PCB ground plane; must be low-inductance path. |
| Pin 3 (DNC) | Do Not Connect | Internally connected; floating or tied to GND/VIN violates absolute maximum ratings. |
| Pin 4 (VIN) | Power Input | Accepts 4.596V–36V; requires ≥0.1µF ceramic bypass capacitor to GND for transient immunity. |
| Pin 5 (VOUT) | Reference Output | Main buffered 4.096V output; requires ≥1µF ceramic load capacitor for stability and noise filtering. |
| Pin 6 (VOUT) | Reference Output | Redundant output pin; must be shorted to Pin 5 to ensure matched load regulation and thermal tracking. |
Key Features
| Feature | Design Value |
|---|---|
| Low Thermal Hysteresis | 40ppm max over –40°C to 125°C thermal cycling (TSOT-23), ensuring repeatable accuracy after field temperature excursions. |
| Current Sinking Capability | –10mA sink current supported; enables use as negative reference in bipolar signal conditioning without external components. |
| High-Temp Operation | Rated for continuous operation at 125°C ambient; qualified per AEC-Q100 Grade H for under-hood automotive modules. |
| Low Long-Term Drift | 60ppm/√kHr (TSOT-23); <0.2ppm/day aging rate supports 10+ year calibration intervals in medical monitoring devices. |
| Wide Supply Rejection | –70dB PSRR at 10kHz; maintains output integrity despite switching regulator ripple on VIN rail. |
Applications
| Industrial Process Transmitter | Automotive Battery Monitor |
|---|---|
|
Use Scenario: 4–20mA loop-powered pressure transmitter operating in oil-field environments (–40°C to 85°C). IC Role / Device Role / Timing Role: Provides stable 4.096V reference for 16-bit DAC generating analog output and for ADC measuring sensor bridge voltage. Use Value: Enables 0.01% total unadjusted error (TUE) over temperature without recalibration, meeting IEC 61000-6-2 immunity requirements. |
Use Scenario: High-voltage EV battery pack monitor measuring cell voltages up to 5V per cell across 100+ cells. IC Role / Device Role / Timing Role: Supplies reference to isolated Σ-Δ ADCs performing simultaneous sampling of cell voltages. Use Value: 1.6ppmP-P noise ensures <10µV measurement uncertainty, supporting SOC estimation accuracy within ±0.5%. |
| Portable Medical ECG Front-End | Test & Measurement DMM Reference |
|
Use Scenario: Handheld ECG device with 24-bit delta-sigma ADC acquiring microvolt-level cardiac signals. IC Role / Device Role / Timing Role: Bias reference for programmable-gain instrumentation amplifier and ADC reference input. Use Value: 10ppm/°C drift limits baseline wander to <0.5mV over clinical operating range, preserving ST-segment diagnostic fidelity. |
Use Scenario: Benchtop digital multimeter requiring 7½-digit resolution and annual calibration traceability. IC Role / Device Role / Timing Role: Primary voltage standard for auto-zeroing circuitry and ADC reference during ohms/volts measurements. Use Value: ±0.05% initial accuracy and 60ppm/√kHr long-term drift enable 1-year calibration interval compliance per ISO/IEC 17025. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5040IDR | 4.096V, ±0.05%, 3ppm/°C max, SOIC-8, 1.2mA supply current | Lower drift but higher quiescent current and larger footprint; no current sinking capability | Preferred when ultra-low drift dominates over power and board space constraints |
| ADR4540BRZ | 4.096V, ±0.02%, 2ppm/°C max, SOIC-8, 950µA supply current, 1.5ppmP-P noise | Higher initial accuracy and lower noise, but not AEC-Q100 qualified and limited to –40°C to 125°C only in LS8 variant | Selected for metrology-grade bench equipment where automotive qualification is unnecessary |
Compared with REF5040IDR and ADR4540BRZ, the LT6654AHS6-4.096#TRMPBF offers unique current-sinking functionality and AEC-Q100 H-grade qualification in a miniature TSOT-23, making it the only choice for space-constrained automotive or portable systems requiring bipolar reference operation.
Availability
LT6654AHS6-4.096#TRMPBF is available at Aetrix Electronics and suitable for industrial process transmitters, automotive battery monitors, and portable medical ECG front-ends requiring stable component supply with guaranteed long-term availability and controlled manufacturing.
Supply support for LT6654AHS6-4.096#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The LT6654 family was designed for precision measurement systems requiring wide-supply, low-drift, low-noise references capable of driving heavy loads - specifically targeting high-reliability applications from factory automation to electric vehicle battery management.
FAQ
What is the maximum input voltage rating for the LT6654AHS6-4.096#TRMPBF?
The LT6654AHS6-4.096#TRMPBF has an absolute maximum input voltage of 38V relative to GND. However, its functional supply range is specified from (VOUT + 0.5V) = 4.596V up to 36V. Operation above 36V is not characterized and may compromise long-term reliability or parametric guarantees.
Can the LT6654AHS6-4.096#TRMPBF be used as a negative voltage reference?
Yes, the LT6654AHS6-4.096#TRMPBF can sink up to –10mA while maintaining its precision specifications. When configured with the output grounded and VIN supplied at –4.096V, it sources a stable –4.096V reference - enabling bipolar signal chains without additional active components.
What is the recommended output capacitor value for stable operation of the LT6654AHS6-4.096#TRMPBF?
A minimum 1µF X7R ceramic capacitor is required between VOUT and GND for stability across all load conditions and temperatures. Larger values (e.g., 2.2µF–10µF) further reduce output impedance at higher frequencies but increase turn-on time beyond the specified 150µs.
Does the LT6654AHS6-4.096#TRMPBF require input bypassing, and if so, what value is recommended?
Yes - a 0.1µF ceramic capacitor must be placed between VIN and GND, located as close as possible to Pins 4 and 2. This minimizes high-frequency noise coupling and prevents instability during fast input transients, especially in systems with switching regulators upstream.
Is the LT6654AHS6-4.096#TRMPBF qualified for automotive applications?
Yes - the "H" grade in LT6654AHS6-4.096#TRMPBF denotes AEC-Q100 qualification for automotive applications, with full characterization over –40°C to 125°C ambient and tested for mechanical shock, vibration, and humidity resistance per automotive reliability standards.
LT6654AHS6-4.096#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):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 2ppmp-p
- Noise - 10Hz to 10kHz:
- 2ppmrms
- Voltage - Input:
- 4.596V ~ 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
LT6654AHS6-4.096#TRMPBF FAQ
1.How can I place an order for LT6654AHS6-4.096#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6654AHS6-4.096#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 LT6654AHS6-4.096#TRMPBF reliable?
The price and inventory of LT6654AHS6-4.096#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6654AHS6-4.096#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT6654AHS6-4.096#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6654AHS6-4.096#TRMPBF transactions.
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LT6654AHS6-4.096#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6654AHS6-4.096#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 LT6654AHS6-4.096#TRMPBF?
For technical support, including LT6654AHS6-4.096#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6654AHS6-4.096#TRMPBF requirements.
6.How does Aetrix verify that LT6654AHS6-4.096#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT6654AHS6-4.096#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 LT6654AHS6-4.096#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT6654AHS6-4.096#TRMPBF?
All LT6654AHS6-4.096#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6654AHS6-4.096#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 LT6654AHS6-4.096#TRMPBF part is unused and in its original packaging.
Return procedure for LT6654AHS6-4.096#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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