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LT6656
PRODUCTION1μA Precision Series Voltage Reference
- Part Models
- 116
- 1ku List Price
- Starting From $2.11
Overview
- Ultralow Supply Current: 850nA
- Low Drift
- A Grade: 10 ppm/°C Max
- B Grade: 20 ppm/°C Max
- High Accuracy
- A Grade: 0.05% Max
- B Grade: 0.1% Max
- Long-Term Drift: 15ppm/√kHr (LS8 Package)
- No Humidity Sensitivity (LS8 Package)
- High Output Drive Current: 5mA Min
- Low Dropout Voltage: 10mV Max
- Fully Specified from –40°C to 85°C
- Operational from –55°C to 125°C
- Wide Supply Range to 18V
- Reverse Input/Output Protection
- Available Output Voltage Options: 1.25V, 2.048V, 2.5V, 2.8V, 3V, 3.3V, 4.096V and 5V
- Available in Low Profile (1mm) ThinSOT™, (2mm × 2mm) DFN and High Stability Hermetic (5mm × 5mm) LS8 Packages
The LT6656 is a tiny precision voltage reference that draws less than 1μA of supply current and can operate with a supply voltage within 10mV of the output voltage. The LT6656 offers an initial accuracy of 0.05% and temperature drift of 10ppm/°C. The combined low power and precision characteristics are ideal for portable and battery powered instrumentation.
The LT6656 can supply up to 5mA of output drive with 65ppm/mA of load regulation, allowing it to be used as the supply voltage and the reference input to a low power ADC. The LT6656 can accept a supply voltage up to 18V and withstand the reversal of the input connections.
The LT6656 output is stable with 1μF or larger output capacitance and operates with a wide range of output capacitor ESR.
This reference is fully specified for operation from –40°C to 85°C, and is functional over the extreme temperature range of –55°C to 125°C. Low hysteresis and a consistent temperature drift are obtained through advanced design, processing and packaging techniques.
The LT6656 is offered in the 6-lead SOT-23, (2mm × 2mm) DFN, and 8-lead LS8 Packages. The LS8 is a 5mm × 5mm surface mount hermetic package that provides outstanding stability.
APPLICATIONS
- Precision A/D and D/A Converters
- Portable Gas Monitors
- Battery- or Solar-Powered Systems
- Precision Regulators
- Low Voltage Signal Processing
- Micropower Remote Sensing
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 2
Video 1
Product Selector Card 1
Solutions Bulletin & Brochure 1
3rd Party Solutions 1
Analog Dialogue 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT6656ACDC-1.25#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACDC-1.25#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACDC-2.048#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACDC-2.048#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACDC-2.5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACDC-2.5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACDC-3#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACDC-3#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACDC-3.3#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACDC-3.3#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACDC-4.096#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACDC-4.096#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACDC-5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACDC-5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656ACS6-1.25#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656ACS6-1.25#TRPBF | 6-Lead TSOT-23 | ||
| LT6656ACS6-2.048#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656ACS6-2.048#TRPBF | 6-Lead TSOT-23 | ||
| LT6656ACS6-2.5#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656ACS6-2.5#TRPBF | 6-Lead TSOT-23 | ||
| LT6656ACS6-3#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656ACS6-3#TRPBF | 6-Lead TSOT-23 | ||
| LT6656ACS6-3.3#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656ACS6-3.3#TRPBF | 6-Lead TSOT-23 | ||
| LT6656ACS6-4.096#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656ACS6-4.096#TRPBF | 6-Lead TSOT-23 | ||
| LT6656ACS6-5#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656ACS6-5#TRPBF | 6-Lead TSOT-23 | ||
| LT6656AIDC-1.25#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-1.25#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-2.048#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-2.048#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-2.5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-2.5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-2.8#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-2.8#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-3#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-3#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-3.3#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-3.3#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-4.096#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-4.096#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AIDC-5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656AILS8-1.25#PBF | 8-Lead LCC (5mm x 5mm) | ||
| LT6656AIS6-1.25#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656AIS6-1.25#TRPBF | 6-Lead TSOT-23 | ||
| LT6656AIS6-2.048#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656AIS6-2.048#TRPBF | 6-Lead TSOT-23 | ||
| LT6656AIS6-2.5#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656AIS6-2.5#TRPBF | 6-Lead TSOT-23 | ||
| LT6656AIS6-3#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656AIS6-3#TRPBF | 6-Lead TSOT-23 | ||
| LT6656AIS6-3.3#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656AIS6-3.3#TRPBF | 6-Lead TSOT-23 | ||
| LT6656AIS6-4.096#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656AIS6-4.096#TRPBF | 6-Lead TSOT-23 | ||
| LT6656AIS6-5#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656AIS6-5#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BCDC-1.25#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCDC-1.25#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCDC-2.048#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCDC-2.048#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCDC-2.5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCDC-2.5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCDC-3#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCDC-3#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCDC-3.3#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCDC-3.3#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCDC-4.096#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCDC-4.096#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCDC-5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCDC-5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BCS6-1.25#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BCS6-1.25#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BCS6-2.048#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BCS6-2.048#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BCS6-2.5#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BCS6-2.5#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BCS6-3#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BCS6-3#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BCS6-3.3#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BCS6-3.3#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BCS6-4.096#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BCS6-4.096#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BCS6-5#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BCS6-5#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BIDC-1.25#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BIDC-1.25#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BIDC-2.048#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BIDC-2.048#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BIDC-2.5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BIDC-2.5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BIDC-3#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BIDC-3#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BIDC-3.3#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BIDC-3.3#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BIDC-4.096#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BIDC-4.096#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BIDC-5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BIDC-5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT6656BILS8-1.25#PBF | 8-Lead LCC (5mm x 5mm) | ||
| LT6656BIS6-1.25#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BIS6-1.25#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BIS6-2.048#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BIS6-2.048#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BIS6-2.5#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BIS6-2.5#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BIS6-3#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BIS6-3#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BIS6-3.3#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BIS6-3.3#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BIS6-4.096#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BIS6-4.096#TRPBF | 6-Lead TSOT-23 | ||
| LT6656BIS6-5#TRMPBF | 6-Lead TSOT-23 | ||
| LT6656BIS6-5#TRPBF | 6-Lead TSOT-23 |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT6656-1.25
- LT6656-2.048
- LT6656-2.5
- LT6656-3
- LT6656-3.3
- LT6656-4.096
- LT6656-5
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Reference Designs
Isolated High Voltage, High Current, Measurement Module
Part Used
Design & Integration Tools
Videos
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CN0548: Isolated High Voltage, High Current, Measurement Module