LTC6655LNCHMS8-2.5#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LTC6655LNCHMS8-2.5#PBF is a precision 2.5 V voltage reference with an ultra-low temperature drift of 0.25 ppm/°C. Delivers single-output regulation with 5 mA maximum output current in a compact MSOP-8 package. Ideal for high-accuracy ADC and DAC reference applications requiring long-term stability.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC6655LNCHMS8-2.5#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.9600(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low 0.25 ppm/°C temperature coefficient for precision measurements
- Fixed 2.5 V output with ±0.05% initial accuracy
- Single-output three-terminal reference in MSOP-8 package
- Maximum output current of 5 mA for driving multiple loads
- Low noise suitable for 16-bit and 18-bit ADC references
- Wide supply voltage range for flexible system integration
Applications
The LTC6655LNCHMS8-2.5#PBF is designed for precision instrumentation, data acquisition systems, and medical diagnostic equipment where a stable 2.5 V reference with sub-ppm drift is critical for accuracy. It serves as an external voltage reference for high-resolution 16-bit and 18-bit ADCs and DACs in test and measurement platforms. The device also finds use in calibration standards, industrial weigh scales, and precision power supply trim circuits demanding better than 1 ppm/°C temperature 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 | 2.50125V |
| Output Voltage-Min | 2.49875V |
| 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 |
| 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% |
| 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 temperature drift specification makes the LTC6655LNCHMS8-2.5#PBF suitable for precision 18-bit ADC references?
The LTC6655LNCHMS8-2.5#PBF achieves an ultra-low temperature coefficient of 0.25 ppm/°C, which limits reference drift to less than 10 ppm over a 40 °C operating window. For an 18-bit ADC with a 2.5 V reference, a 10 ppm shift corresponds to roughly 0.26 LSB, ensuring the ADC remains within calibration across typical ambient temperature variations.
How does the 5 mA output current capability affect circuit design when multiple analog loads share the LTC6655LNCHMS8-2.5#PBF reference?
With a maximum output current of 5 mA, the reference can simultaneously drive the REF input of one or two 16-bit SAR ADCs while also supplying a precision DAC, provided total load stays below 5 mA. A low-dropout output buffer or reference distribution IC is recommended when more than 3 loads need to be driven to avoid degrading the 0.25 ppm/°C drift specification.
In what compact form factor does the LTC6655LNCHMS8-2.5#PBF ship, and how does it compare in board area to a SOT-23 reference?
The device is available in an MSOP-8 package with a footprint of approximately 3 mm × 3 mm, which is slightly larger than a SOT-23-5 but provides 8 pins for a dedicated output sense path, noise bypass, and trim connections. This additional pinout allows better noise filtering and trimming versus a 5-pin SOT-23 reference, making it preferable in high-resolution systems where the extra 2 mm² of board space is justified by the 0.25 ppm/°C performance.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $5.7416 | $574.16 |
| 250+ | $5.3875 | $1346.88 |
| 1000+ | $4.9600 | $4960.00 |
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