LTC6655BHMS8-2.5#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LTC6655BHMS8-2.5#PBF is an ultra-low noise 2.5 V precision voltage reference from Analog Devices, packaged in an 8-pin MSOP with output accuracy between 2.4993 V and 2.5006 V. It delivers exceptional DC precision and low noise for high-resolution ADC references, precision DAC supplies, and metrology-grade instrumentation designs.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC6655BHMS8-2.5#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $7.8700(MOQ 10)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC6655BHMS8-2.5#PBF?
- Ultra-low noise 2.5 V output with output accuracy held within 2.4993 V to 2.5006 V for high-resolution converter references
- Three-terminal architecture simplifies layout and reduces external component count in precision reference designs
- Compact 8-pin MSOP package enables precision voltage reference integration in space-constrained instrumentation PCBs
- RoHS-compliant (JESD-609 e3) lead-free construction suitable for modern green manufacturing
- Single-output design optimized for 16-bit to 24-bit ADC and DAC reference applications where noise directly limits SNR
What is LTC6655BHMS8-2.5#PBF used for?
The LTC6655BHMS8-2.5#PBF serves as the precision voltage reference in high-resolution data acquisition systems, where its 2.5 V output and ultra-low noise floor prevent reference noise from degrading the SNR of 16-bit to 24-bit ADCs. It is used in precision weighing instruments, medical diagnostic analyzers, and laboratory calibration sources where the reference voltage must remain stable across temperature and load variations. The device is also well-suited as the DAC reference in precision signal generators and industrial process control transmitters requiring long-term output stability.
What are the specifications of LTC6655BHMS8-2.5#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1660 |
| YTEOL | 10 |
| 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 Voltage-Max | 2.5006V |
| Output Voltage-Min | 2.4993V |
| 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 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 7.5mA |
| Supply Voltage-Max (Vsup) | 13.2V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 3V |
| 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 |
| Country of Origin | Malaysia |
Where can I find the LTC6655BHMS8-2.5#PBF datasheet?
LTC6655BHMS8-2.5#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC6655BHMS8-2.5#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output voltage tolerance does the LTC6655BHMS8-2.5#PBF maintain, and why does this matter for high-resolution ADCs?
The LTC6655BHMS8-2.5#PBF holds its 2.5 V output between 2.4993 V and 2.5006 V, a total tolerance band of approximately 1.3 mV or ±0.026%. For a 16-bit ADC with a 2.5 V full-scale reference, 1 LSB equals 38 µV, so this tight tolerance ensures the reference error stays within a few LSBs without factory trimming, preserving the ADC's full dynamic range.
Why is ultra-low noise the key specification for the LTC6655BHMS8-2.5 in precision measurement circuits?
In a precision ADC circuit, reference noise appears directly as input-referred noise, limiting the achievable SNR regardless of the ADC's own noise performance. The LTC6655BHMS8-2.5 is designed to keep its output noise spectral density below 1 µV/√Hz in the 0.1 Hz to 10 Hz band, which allows 24-bit converters to achieve their rated noise-free resolution of approximately 20 bits in practice, compared to lower-performance references that can cost 2 to 4 bits of effective resolution.
How does the 8-pin MSOP package of the LTC6655BHMS8-2.5#PBF benefit precision instrument board designs?
The MSOP-8 package (JESD-30 S-PDSO-G8) measures approximately 3 mm × 3 mm, roughly half the area of an equivalent SOIC-8 component. In precision instrumentation PCBs where reference, ADC, and filter components must be co-located within a few millimeters to minimize thermal gradients and parasitic thermocouple effects, the compact MSOP footprint allows the LTC6655 to sit immediately adjacent to the ADC input pins, reducing the reference noise coupling path length.
When should a designer choose the LTC6655BHMS8-2.5#PBF over lower-cost 2.5 V references such as the REF02?
The LTC6655BHMS8-2.5#PBF is the preferred choice when the application uses a 16-bit or higher ADC or DAC and reference accuracy and low noise directly determine system performance. For designs where a 12-bit ADC with 1 mV reference accuracy is sufficient, the REF02 or similar lower-cost parts are adequate. The LTC6655's 2.5 V output accuracy of ±0.026% and ultra-low noise justify its premium cost in metrology, medical diagnostics, and precision process control applications.
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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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