LT6657AHMS8-3#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LT6657AHMS8-3 is a precision 3.0 V buffered voltage reference from Analog Devices with an ultralow 1.5 ppm/°C maximum temperature coefficient and low noise output. Provides 3.0 V ±0.1% initial accuracy with 50 mA output current capability for high-resolution ADC and DAC applications. Housed in an 8-pin MSOP package for compact precision analog and measurement system designs.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT6657AHMS8-3#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $7.5200(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 LT6657AHMS8-3#PBF?
- Ultralow 1.5 ppm/°C maximum temperature coefficient ensures 3.0 V reference stability of ±0.225 mV across the full -40°C to 125°C range
- Buffered 50 mA output current capability drives multiple ADC or DAC reference inputs directly without voltage droop
- Low output noise below 4 µVRMS from 10 Hz to 10 kHz for high-resolution 16-bit to 24-bit converter applications
- High initial accuracy of ±0.1% (±3 mV) at 3.0 V output, minimizing factory calibration time
- Wide input supply range of 3.2 V to 13.2 V compatible with 3.3 V logic and 5 V to 12 V analog power rails
What is LT6657AHMS8-3#PBF used for?
The LT6657AHMS8-3 serves as a precision 3.0 V reference in high-resolution data acquisition systems where the 1.5 ppm/°C drift specification keeps total reference error below 0.5 LSB on a 16-bit ADC across the full industrial temperature range of -40°C to 85°C. Precision weigh-scale bridges, strain-gauge signal conditioners, and industrial pressure transmitters use its 50 mA buffered output to simultaneously supply several ADC reference and excitation inputs without dedicated buffer amplifiers. Its ultralow noise also suits audio DAC reference rails and laboratory-grade calibration standards where reference noise directly limits achievable signal-to-noise ratio.
What are the specifications of LT6657AHMS8-3#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 | 3.003V |
| Output Voltage-Min | 2.997V |
| Output Voltage-Nom | 3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Supply Voltage-Max (Vsup) | 40V |
| Supply Voltage-Min (Vsup) | 3.5V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 1.5ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Trim/Adjustable Output | NO |
| 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 LT6657AHMS8-3#PBF datasheet?
LT6657AHMS8-3#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT6657AHMS8-3#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the 1.5 ppm/°C drift of the LT6657AHMS8-3 affect accuracy in a 16-bit ADC over temperature?
With a 1.5 ppm/°C temperature coefficient, the LT6657AHMS8-3 drifts at most 4.5 µV per degree Celsius on its 3.0 V output. For a 16-bit ADC, one LSB equals 46 µV, so across a 50°C operating window the reference contributes roughly 4.9 LSB of drift—comparable to a high-quality internal ADC reference and well within the ±8 LSB budget of most industrial measurement designs.
What input supply voltage is required, and can the LT6657AHMS8-3 run directly from a 3.3 V rail?
The LT6657AHMS8-3 requires a minimum input supply of 3.2 V, which is just below a standard 3.3 V rail. This 200 mV headroom allows direct operation from a 3.3 V power bus in FPGA- and microcontroller-based systems, eliminating the need for a step-up converter to generate the 3.0 V reference output in modern low-voltage designs.
How does the LT6657AHMS8-3 compare to the LT6657BHMS8-2.5 when choosing a reference for a precision strain-gauge system?
The LT6657AHMS8-3 provides a 3.0 V output with 1.5 ppm/°C drift, while the LT6657BHMS8-2.5 provides 2.5 V with 3 ppm/°C. For a strain-gauge bridge requiring 3.0 V excitation, the AHMS8-3 delivers both the correct voltage and 2x lower drift, reducing temperature-induced offset by half compared to using the 2.5 V version with a gain stage that amplifies its drift error.
How many ADC reference inputs can the LT6657AHMS8-3 drive simultaneously with its buffered output?
The LT6657AHMS8-3 can source up to 50 mA from its buffered output, supporting 5 to 10 ADC channels that each draw 5 mA to 10 mA on their reference pins. This parallel drive capability is especially useful in multi-channel data acquisition modules where a single precision reference must serve all channels without degrading the 3.0 V accuracy due to load-induced voltage drop.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $9.9700 | $189.43 |
| 100+ | $8.1963 | $819.63 |
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