LTC6655LNBHMS8-2.5#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LTC6655L is an ultra-precision three-terminal voltage reference delivering 2.5 V with an exceptional 0.25 ppm/°C temperature drift and ±0.05% initial accuracy. It sources up to 5 mA output current from its low-noise architecture and is packaged in an MSOP-8 for space-efficient precision analog designs. Ideal for 24-bit ADC references, precision DACs, and metrology-grade measurement instruments.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC6655LNBHMS8-2.5#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $7.0830(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Industry-leading 0.25 ppm/°C temperature coefficient for exceptional long-term stability
- 2.5 V output with ±0.05% initial accuracy for high-resolution converter references
- Ultra-low noise architecture suitable for 24-bit data acquisition systems
- Output current up to 5 mA supporting multiple precision loads
- MSOP-8 package enabling compact precision voltage reference solutions
Applications
The LTC6655L is the reference of choice for 20-bit to 24-bit sigma-delta and SAR ADCs in precision instrumentation, laboratory test equipment, and metrology systems where drift below 1 ppm/°C is required. Its ultra-low noise floor ensures that the reference itself does not degrade ADC dynamic range, critical in high-resolution weigh scales, seismic data loggers, and precision power supplies. The device is also used in precision DAC calibration circuits and medical diagnostic equipment demanding long-term output stability.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1660 |
| Date Of Intro | 2020-06-18 |
| YTEOL | 9 |
| Analog IC - Other Type | THREE TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.005A |
| Output Voltage-Max | 2.500625V |
| Output Voltage-Min | 2.499375V |
| Output Voltage-Nom | 2.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max (Isup) | 7.5mA |
| Supply Voltage-Max (Vsup) | 13.2V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 3.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temp Coef of Voltage-Max | 2ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | NO |
| Voltage Tolerance-Max | 0.025% |
| Package | Small Outline Packages |
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
What makes the 0.25 ppm/°C temperature drift of the LTC6655LNBHMS8-2.5 significant for 24-bit ADC reference applications?
At 0.25 ppm/°C, the LTC6655L output shifts only 0.025 mV across a 40 °C temperature excursion, which represents less than 1 LSB for a 24-bit ADC with a 2.5 V full-scale range. Competing references at 5 ppm/°C would introduce 20 times more drift error, directly degrading conversion accuracy in precision measurement systems.
How much output current does the LTC6655LNBHMS8-2.5 source, and can it drive multiple precision loads simultaneously?
The device sources up to 5 mA of output current, which is enough to simultaneously supply the reference input of a 24-bit ADC, a precision DAC, and a few resistive divider networks without significant voltage droop. For higher current loads, a unity-gain buffer amplifier is recommended to maintain the 0.25 ppm/°C drift specification.
When would a designer select the LTC6655LNBHMS8-2.5 over a standard bandgap reference rated at 10 ppm/°C?
For systems where measurement uncertainty must stay below 10 ppm over the full industrial temperature range of -40 °C to 85 °C, a standard 10 ppm/°C reference introduces 1250 ppm worst-case drift versus just 31 ppm for the LTC6655L. This 40× improvement justifies its cost premium in metrology, aerospace, and medical-grade equipment where recalibration cycles must be minimized.
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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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| 1+ | $11.8050 | $11.80 |
| 10+ | $11.1850 | $111.85 |
| 29+ | $7.6733 | $222.53 |
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