LT6654AIS6-1.25#TRMPBF Analog Devices Integrated Circuit (SOT23 (6-Pin)) In Stock
LT6654AIS6-1.25#TRMPBF is a precision 1.25 V low-noise voltage reference from Analog Devices in 6-pin SOT-23 package, offering 10 ppm/°C temperature coefficient rated from -40°C to 85°C. Available with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- LT6654AIS6-1.25#TRMPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.3400(MOQ 19)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1.25 V precision output with ±0.05% initial accuracy for tight ADC reference calibration
- 10 ppm/°C maximum temperature coefficient ensuring stable reference voltage across -40°C to 85°C industrial range
- Low-noise SOT-23 6-pin package enabling compact precision voltage reference placement adjacent to ADC inputs
Applications
The LT6654AIS6-1.25#TRMPBF is designed for precision analog-to-digital converter references, calibration circuits, and data acquisition systems requiring a stable 1.25 V reference with minimal temperature drift. Its 10 ppm/°C temperature coefficient ensures that a 16-bit ADC using this reference introduces less than 1 LSB of reference-induced error across a 50°C operating temperature span. The compact SOT-23 footprint makes it suitable for portable instrumentation, medical diagnostic equipment, and industrial transmitters where board space is limited.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1636 |
| YTEOL | 10 |
| Analog IC - Other Type | THREE TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 1.25219V |
| Output Voltage-Min | 1.24781V |
| Output Voltage-Nom | 1.25V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max (Vsup) | 36V |
| Supply Voltage-Min (Vsup) | 2.4V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 10ppm/°C |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | NO |
| Voltage Tolerance-Max | 0.175% |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How accurate is the 1.25 V output of LT6654AIS6-1.25#TRMPBF and what output voltage tolerance can be expected?
The LT6654AIS6-1.25#TRMPBF specifies an output voltage range of 1.24781 V to 1.25219 V, representing an initial accuracy of approximately ±0.175% or better. At 10 ppm/°C temperature coefficient, a 50°C temperature change causes an additional drift of only 0.625 mV, making the reference suitable for driving 14-bit and 16-bit ADCs where total reference error must remain below 1 LSB.
Which precision measurement applications benefit most from the 10 ppm/°C specification of LT6654AIS6-1.25#TRMPBF?
Precision weigh scales, industrial pressure transmitters, and medical blood glucose analyzers benefit most from the 10 ppm/°C drift specification. In a 4-20 mA loop transmitter operating over a -40°C to 85°C range, a 10 ppm/°C reference contributes only 1.25 mV of total drift versus 5 mV or more from a 40 ppm/°C standard reference, directly improving span accuracy to within 0.1% of reading.
How does LT6654AIS6-1.25#TRMPBF compare to a 2.5 V reference when used as an ADC reference for a 3.3 V supply system?
A 1.25 V reference like the LT6654AIS6-1.25#TRMPBF is advantageous when the ADC input signal spans 0 V to 1.25 V, maximizing the full-scale input range and dynamic range without requiring a resistor divider on the reference output. However, a 2.5 V reference provides 6 dB better signal-to-noise ratio for the same ADC resolution when the analog input spans the full 2.5 V range, so the choice depends on sensor output swing relative to the available supply headroom.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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