LTC6655CHMS8-5#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LTC6655CHMS8-5#PBF is an ultra-low-noise 5 V precision voltage reference in an MSOP-8 package. Delivers 4.9975 V to 5.0025 V output with extremely low noise and tight initial accuracy. Available from stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC6655CHMS8-5#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.9600(MOQ 19)
- 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 LTC6655CHMS8-5#PBF?
- Ultra-low-noise 5 V precision voltage reference with 0.05% initial accuracy (±2.5 mV) straight from the factory
- Three-terminal architecture enabling external trimming and buffering for high-resolution ADC and DAC references
- Low output voltage temperature coefficient for stable 5 V reference across wide industrial temperature ranges
- MSOP-8 package combining precision performance with a compact 3 mm × 3 mm PCB footprint
What is LTC6655CHMS8-5#PBF used for?
The LTC6655CHMS8-5#PBF is designed as the precision reference for 16-bit and 18-bit ADCs, high-resolution DACs, and precision instrumentation amplifiers in test and measurement equipment, medical devices, and industrial data acquisition systems. Its ultra-low noise output maintains sub-µV noise spectral density, ensuring that the reference does not limit the dynamic range of high-resolution converters in weigh scales, strain-gauge bridges, and electrochemical analyzers. The device is also widely used in calibration standards and precision power supplies where a stable, accurate 5 V reference is mandatory.
What are the specifications of LTC6655CHMS8-5#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 | 5.0025V |
| Output Voltage-Min | 4.9975V |
| Output Voltage-Nom | 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) | 5.197V |
| Supply Voltage-Nom (Vsup) | 5.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temp Coef of Voltage-Max | 5ppm/°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 | 0.05% |
| ## LTC6655CHMS8-5#PBF Alternates Showing results | Image |
| 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 LTC6655CHMS8-5#PBF datasheet?
LTC6655CHMS8-5#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC6655CHMS8-5#PBF?
Compatible alternatives and drop-in replacements for LTC6655CHMS8-5#PBF:
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Frequently Asked Questions
What is the output voltage accuracy of LTC6655CHMS8-5#PBF, and how does it affect a 16-bit ADC system's absolute error budget?
The LTC6655CHMS8-5#PBF specifies an output voltage between 4.9975 V and 5.0025 V, representing a ±0.05% initial accuracy of ±2.5 mV. For a 16-bit ADC with a 5 V full-scale range, one LSB equals approximately 76 µV, so a 2.5 mV reference error introduces about 33 LSB of gain error—well within correctable range via one-point calibration, making this reference suitable for laboratory-grade measurement instruments requiring traceable accuracy.
How does the ultra-low-noise performance of LTC6655CHMS8-5#PBF compare to a standard TL431-based reference in a precision DAC application?
The LTC6655CHMS8-5#PBF achieves a noise spectral density of approximately 2 µV per root-Hz at 1 kHz, far below the 30–50 µV per root-Hz typical of shunt regulators like the TL431. In an 18-bit DAC application, the lower reference noise directly reduces the output noise floor, improving DAC SNR by more than 20 dB. The TL431 is adequate for 12-bit systems, but precision references like the LTC6655 are mandatory for 16-bit and above converter designs.
Which external components does LTC6655CHMS8-5#PBF require for stable operation, and what capacitor value is recommended?
The LTC6655CHMS8-5#PBF requires a 10 µF output bypass capacitor (X5R or better ceramic) connected between the output and ground for stable operation and optimal noise performance. An optional series resistor of 1 Ω to 10 Ω between the output pin and the ADC VREF pin can further attenuate high-frequency transients caused by ADC reference current spikes. No large external pass transistors or trimmer potentiometers are needed for standard applications, minimizing BOM complexity.
Can LTC6655CHMS8-5#PBF supply reference current to multiple ADC channels simultaneously, and what is its output current capability?
Yes. The LTC6655CHMS8-5#PBF can source up to 10 mA of output current, which is sufficient to directly drive the VREF pin of several simultaneous-sampling ADC channels in a multiplexed acquisition system. Most precision ADCs draw reference currents in the 100 µA to 1 mA range, so the LTC6655 can comfortably supply 5 to 10 ADC reference inputs from a single device without compromising voltage accuracy or increasing noise.
For a portable industrial calibrator design, how does the MSOP-8 package of LTC6655CHMS8-5#PBF contribute to board space savings?
The MSOP-8 package measures approximately 3 mm × 3 mm with a 0.65 mm pin pitch, occupying roughly 9 mm² of PCB area—about 60% less than an equivalent SO-8 package. In a handheld calibrator or portable data logger where every square millimetre counts, this compact footprint allows the precision reference to be placed directly adjacent to the ADC's VREF pin, minimising trace inductance and improving high-frequency noise rejection at frequencies above 1 MHz.
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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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|---|---|---|
| 19+ | $6.5700 | $124.83 |
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