LTC6655BHMS8-2.048#3ZPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LTC6655BHMS8-2.048 is a precision 2.048 V voltage reference IC from Analog Devices with ultra-low noise and high accuracy in an MSOP-8 package. It delivers 0.05% initial accuracy and 2 ppm/°C temperature coefficient for demanding ADC and DAC reference applications. Available from stock worldwide with fast global shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC6655BHMS8-2.048#3ZPBF?
- 2.048 V precision output voltage with 0.05% initial accuracy for ADC reference rails
- Ultra-low noise of 0.25 µV pp (0.1 Hz to 10 Hz) enabling 18-bit ADC performance
- 2 ppm/°C temperature coefficient for stable references across -40°C to 125°C range
- MSOP-8 package with 3 mA output drive capability for multi-load reference networks
- Wide input supply range from 3 V to 13.2 V for flexible system power compatibility
- RoHS-compliant lead-free construction for green manufacturing requirements
What is LTC6655BHMS8-2.048#3ZPBF used for?
The LTC6655BHMS8-2.048 provides a stable 2.048 V reference for precision data acquisition systems using 16-bit to 24-bit SAR and delta-sigma ADCs in industrial instrumentation, medical diagnostics, and scientific measurement equipment. Its ultra-low noise floor of 0.25 µV pp makes it the preferred reference for weight scales, blood analyzers, and seismic sensors where noise directly limits measurement resolution. Designers also deploy it in precision DAC reference circuits for industrial process control outputs requiring long-term stability better than 10 ppm per 1000 hours.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the LTC6655BHMS8-2.048#3ZPBF datasheet?
LTC6655BHMS8-2.048#3ZPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC6655BHMS8-2.048#3ZPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output voltage does LTC6655BHMS8-2.048 provide and how does its accuracy affect 18-bit ADC performance?
The LTC6655BHMS8-2.048 provides a precision 2.048 V output with 0.05% initial accuracy, equivalent to a 1 mV worst-case error. For an 18-bit ADC with a 2.048 V full-scale reference, 1 LSB equals approximately 7.8 µV, so the reference initial error represents only 128 LSBs — correctable with a one-time calibration. The 2 ppm/°C temperature coefficient adds less than 0.5 mV drift over a 50°C operating range, preserving measurement accuracy without recalibration.
How does the noise specification of LTC6655BHMS8-2.048 compare to lower-cost references in a 24-bit delta-sigma ADC application?
The LTC6655BHMS8-2.048 achieves 0.25 µV pp noise in the 0.1 Hz to 10 Hz band, which is below the noise floor of most 24-bit delta-sigma ADCs and thus does not add measurable uncertainty. Lower-cost references typically exhibit 5 to 20 µV pp in the same band, contributing 2 to 8 LSBs of reference noise at 24-bit resolution. For a precision industrial weighing scale reading 10 kg full-scale at 0.1 g resolution, the lower noise floor of the LTC6655B is essential to achieve rated accuracy.
What supply voltage range does LTC6655BHMS8-2.048 require and how does it fit into a 3.3 V single-supply system?
The LTC6655BHMS8-2.048 operates from a 3 V to 13.2 V input supply, making it directly powered from a 3.3 V rail with a minimum 1 V headroom margin above the 2.048 V output. This eliminates the need for a separate 5 V or 12 V supply rail purely for the voltage reference, simplifying power architecture in single-supply portable instruments. The 3 mA output drive capability can supply multiple ADC reference inputs in parallel without a buffer amplifier in most designs.
For a precision process control transmitter requiring long-term stability, how does LTC6655BHMS8-2.048 compare to a zener-diode-based reference?
The LTC6655BHMS8-2.048 achieves long-term drift below 10 ppm per 1000 hours through its band-gap curvature-corrected architecture, versus typical zener references at 50 to 200 ppm per 1000 hours. Over a 10-year instrument calibration cycle, this translates to less than 1 mV total drift versus 5 to 20 mV for zener solutions. The MSOP-8 package also occupies under 15 mm² PCB area compared to a through-hole zener assembly, saving significant board space in compact transmitter modules.
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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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