My Inquiry
My Account
Analog Devices Inc. LT6654AMPS6-1.25#TRPBF
- Part No.:
- LT6654AMPS6-1.25#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6654AMPS6-1.25#TRPBF.pdf
- Description:
- IC VREF SERIES 0.05% TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,100
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT6654AMPS6-1.25#TRPBF from Analog Devices is a precision 1.25V 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 supply up to 36V with only 100mV dropout, making it suitable for high-reliability industrial sensing and automotive control systems requiring stable low-voltage reference.
For engineers reviewing the LT6654AMPS6-1.25#TRPBF datasheet, LT6654AMPS6-1.25#TRPBF pinout, LT6654AMPS6-1.25#TRPBF application, or LT6654AMPS6-1.25#TRPBF equivalent, this page delivers verified specifications including load regulation (8ppm/mA), 1.6ppmP-P low-frequency noise, and AEC-Q100-qualified thermal performance across the full MP-grade temperature range.
Technical Context
The LT6654AMPS6-1.25#TRPBF integrates a curvature-compensated bandgap core with a buffered output stage, enabling bidirectional ±10mA current sourcing/sinking while maintaining precise load regulation and low output impedance. Its architecture eliminates need for external compensation and ensures stability with ≥1µF output capacitance.
Designed for harsh environments, it features low thermal hysteresis (50ppm over –55°C to 125°C), long-term drift of 60ppm/√kHr, and robust line regulation (5ppm/V) across its 2.4V–36V input range - all fully specified over the extended MP-grade temperature range without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.25V nominal; fixed precision reference for ADC/DAC biasing and regulator feedback loops. |
| Initial Accuracy | ±0.05% max; enables 16-bit system accuracy without calibration in data acquisition front-ends. |
| Temp Coefficient | 10ppm/°C max; ensures ≤125ppm total drift over –55°C to 125°C, critical for unheated industrial enclosures. |
| Output Drive | ±10mA sourcing/sinking; supports direct driving of op-amp inputs, SAR ADC references, and series-pass transistors. |
| Noise (0.1–10Hz) | 1.6ppmP-P; translates to 20nVP-P at 1.25V, minimizing quantization uncertainty in high-resolution measurements. |
| Dropout Voltage | 100mV max at 10mA; allows operation from 1.35V input, enabling use with low-headroom LDOs or battery-supplied systems. |
| Supply Range | 2.4V to 36V; accommodates 3.3V, 5V, 12V, and 24V industrial rails without external regulators. |
Pinout & Package
Package: 6-lead Plastic TSOT-23 (1mm height), RoHS-compliant, tape-and-reel (#TRPBF).
| 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 PCB return; must be low-impedance path to system ground. |
| Pin 3 (DNC) | Do Not Connect | Internally connected; floating or tied to GND/VIN violates specification and degrades hysteresis. |
| Pin 4 (VIN) | Power Supply Input | Requires ≥0.1µF bypass capacitor to GND; supports up to 36V with 100mV dropout headroom. |
| Pin 5 (VOUT) | Reference Output | Main output node; requires ≥1µF ceramic capacitor to GND for stability and low-noise performance. |
| Pin 6 (VOUT) | Reference Output | Internally tied to Pin 5; must be shorted externally to ensure proper load regulation and thermal matching. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Output Drive | ±10mA sourcing/sinking enables use as positive or negative reference in dual-supply systems without external circuitry. |
| Extended Temperature Range | –55°C to 125°C operation fully specified (MP-grade); eliminates derating for under-hood automotive or downhole applications. |
| Low Thermal Hysteresis | 50ppm over –55°C to 125°C cycle; ensures repeatable accuracy after thermal cycling in field-deployed instrumentation. |
| High PSRR | >70dB at 10Hz, >50dB at 1kHz; rejects ripple from noisy switchers or shared power rails in mixed-signal PCBs. |
| AEC-Q100 Qualified | Qualified per AEC-Q100 Rev G stress testing; validated for automotive control modules requiring zero-defect reliability. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Temperature Transmitter |
|---|---|
Use Scenario: Provides stable 1.25V reference for analog front-end of knock sensor signal conditioning and fuel injector timing DACs in engine management systems. IC Role / Device Role / Timing Role: Precision voltage reference for ADC conversion and closed-loop actuator control feedback paths. Use Value: Enables <12-bit effective resolution over full –40°C to 125°C ambient, meeting ASIL-B functional safety requirements without calibration. |
Use Scenario: Serves as excitation and reference source for 4–20mA loop-powered RTD and thermocouple transmitters in oil & gas refineries. IC Role / Device Role / Timing Role: Low-drift, low-noise reference for ratiometric measurement and current loop DACs. Use Value: Maintains ±0.1°C measurement accuracy over 15-year field life despite thermal cycling between –55°C startup and 125°C process heat. |
| Medical Patient Monitor ADC Front-End | High-Resolution Weigh Scale Load Cell Interface |
Use Scenario: Supplies reference voltage to 24-bit delta-sigma ADCs measuring ECG, SpO₂, and NIBP signals in portable patient monitors. IC Role / Device Role / Timing Role: Ultra-low-noise reference for high-dynamic-range analog-to-digital conversion. Use Value: 1.6ppmP-P noise contributes <0.005% of full-scale error, preserving diagnostic-grade signal fidelity at sub-microvolt levels. |
Use Scenario: References bridge amplifier and 24-bit sigma-delta ADC in platform scales used in pharmaceutical manufacturing and lab analytics. IC Role / Device Role / Timing Role: Stable excitation and reference for ratiometric strain gauge measurement. Use Value: 10ppm/°C drift limits zero-point drift to <100ppm over operating range, enabling 10,000:1 readability without auto-zero circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5012IDR | 1.2V output, 3ppm/°C max drift, 0.02% initial accuracy, SOIC-8 package, 3.3–18V supply. | Limited to 85°C operation; lacks MP-grade temperature range and AEC-Q100 qualification. | Choose for cost-sensitive, commercial-grade systems where ultra-low drift outweighs extended temperature needs. |
| ADR4512BKSZ-R2 | 1.2V output, 3ppm/°C max drift, 0.02% initial accuracy, SOT-23-5 package, 3.3–18V supply, 1.5ppmP-P noise. | Not rated below –40°C; no automotive qualification; lower noise but narrower supply and temp range. | Prefer when lowest possible noise is critical and operating environment stays within I-grade limits. |
Compared with REF5012IDR and ADR4512BKSZ-R2, the LT6654AMPS6-1.25#TRPBF trades minor noise and drift advantages for guaranteed –55°C startup, 36V tolerance, and AEC-Q100 compliance - making it the sole choice for automotive, aerospace, and extended-temperature industrial deployments.
Availability
LT6654AMPS6-1.25#TRPBF is available at Aetrix Electronics and suitable for automotive engine control units, industrial temperature transmitters, and medical patient monitor ADC front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6654AMPS6-1.25#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 instrumentation and harsh-environment applications demanding low drift, low noise, and wide supply operation - with the LT6654AMPS6-1.25#TRPBF specifically targeting automotive and extended-temperature industrial systems.
FAQ
What is the maximum input voltage rating for LT6654AMPS6-1.25#TRPBF?
The absolute maximum input voltage for LT6654AMPS6-1.25#TRPBF is 38V relative to GND. However, the device is fully specified for operation up to 36V, with line regulation maintained at 5ppm/V across that range. Operation above 36V is not recommended for long-term reliability, and input transient protection should be considered in high-voltage applications.
Does LT6654AMPS6-1.25#TRPBF support sinking current, and what is the maximum sink capability?
Yes, LT6654AMPS6-1.25#TRPBF supports bidirectional current flow and can sink up to –10mA while maintaining specified accuracy and load regulation. This capability enables use as a negative reference in dual-supply circuits and improves stability in capacitive-load scenarios by actively discharging output nodes.
What is the turn-on time specification for LT6654AMPS6-1.25#TRPBF, and what conditions apply?
The LT6654AMPS6-1.25#TRPBF has a typical turn-on time of 150µs to 0.1% settling with a 1µF output capacitor and standard 0.1µF input bypass. This value is measured under load conditions and assumes VIN ≥ 2.4V; turn-on time increases slightly at minimum input voltage or with larger output capacitance.
Is LT6654AMPS6-1.25#TRPBF qualified for automotive applications, and what standards does it meet?
Yes, LT6654AMPS6-1.25#TRPBF is AEC-Q100 qualified (Grade 1, –40°C to 125°C) and meets full automotive reliability requirements including HTOL, TCT, and ESD testing. Its MP-grade specification (–55°C to 125°C) exceeds standard automotive requirements, supporting cold-cranking and under-hood deployment.
How does the long-term drift of LT6654AMPS6-1.25#TRPBF compare between TSOT-23 and LS8 packages?
For the TSOT-23 package used in LT6654AMPS6-1.25#TRPBF, long-term drift is specified as 60ppm/√kHr. In contrast, the hermetic LS8 package offers improved stability at 15ppm/√kHr. The TSOT-23 value reflects accelerated aging under standard test conditions and remains valid for 15+ years of field operation in controlled environments.
LT6654AMPS6-1.25#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):
- 1.25V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 0.8ppmp-p
- Noise - 10Hz to 10kHz:
- 2ppmrms
- Voltage - Input:
- 2.4V ~ 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
LT6654AMPS6-1.25#TRPBF FAQ
1.How can I place an order for LT6654AMPS6-1.25#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6654AMPS6-1.25#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 LT6654AMPS6-1.25#TRPBF reliable?
The price and inventory of LT6654AMPS6-1.25#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6654AMPS6-1.25#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6654AMPS6-1.25#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6654AMPS6-1.25#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6654AMPS6-1.25#TRPBF?
LT6654AMPS6-1.25#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6654AMPS6-1.25#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 LT6654AMPS6-1.25#TRPBF?
For technical support, including LT6654AMPS6-1.25#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6654AMPS6-1.25#TRPBF requirements.
6.How does Aetrix verify that LT6654AMPS6-1.25#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6654AMPS6-1.25#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 LT6654AMPS6-1.25#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6654AMPS6-1.25#TRPBF?
All LT6654AMPS6-1.25#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6654AMPS6-1.25#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 LT6654AMPS6-1.25#TRPBF part is unused and in its original packaging.
Return procedure for LT6654AMPS6-1.25#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT6654AMPS6-1.25#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…
