Signal Conditioning
Voltage References
Series Voltage References
Signal Conditioning
Voltage References
Micropower Voltage References
LT6656 - 1μA Precision Series Voltage Reference
Features
- 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 - Ultralow Supply Current: 850nA
- 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, 3V, 3.3V, 4.096V and 5V - Thermal Hysteresis: 25ppm
- Low Profile (1mm) ThinSOT™ Package and
(2mm × 2mm) DFN Package
Typical Application
Description
The LT6656 is a tiny precision voltage reference that draws less than 1µA of supply current and can operatewith a supply voltage within 10mV of the output voltage. The LT6656 offers an initial accuracy of 0.05% and tem-
perature 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 and (2mm × 2mm) DFN Packages.
Packaging
For complete and up to date package information and drawings, please refer to our packaging page
SOT-23,DFN-6
Order Info
- Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) | Price (1k)* | RoHS Data |
|---|---|---|---|---|---|---|
| LT6656ACDC-1.25#PBF | DFN | 6 | C | $3.76 | View | |
| LT6656ACDC-1.25#TRMPBF | DFN | 6 | C | $3.76 | $2.75 | View |
| LT6656ACDC-1.25#TRPBF | DFN | 6 | C | $3.76 | $2.70 | View |
| LT6656ACDC-2.048#PBF | DFN | 6 | C | $3.76 | View | |
| LT6656ACDC-2.048#TRMPBF | DFN | 6 | C | $3.76 | $2.75 | View |
| LT6656ACDC-2.048#TRPBF | DFN | 6 | C | $3.76 | $2.70 | View |
| LT6656ACDC-2.5#PBF | DFN | 6 | C | $3.76 | View | |
| LT6656ACDC-2.5#TRMPBF | DFN | 6 | C | $3.76 | $2.75 | View |
| LT6656ACDC-2.5#TRPBF | DFN | 6 | C | $3.76 | $2.70 | View |
| LT6656ACDC-3#PBF | DFN | 6 | C | $3.76 | View | |
| LT6656ACDC-3#TRMPBF | DFN | 6 | C | $3.76 | $2.75 | View |
| LT6656ACDC-3#TRPBF | DFN | 6 | C | $3.76 | $2.70 | View |
| LT6656ACDC-3.3#PBF | DFN | 6 | C | $3.76 | View | |
| LT6656ACDC-3.3#TRMPBF | DFN | 6 | C | $3.76 | $2.75 | View |
| LT6656ACDC-3.3#TRPBF | DFN | 6 | C | $3.76 | $2.70 | View |
| LT6656ACDC-4.096#PBF | DFN | 6 | C | $3.76 | View | |
| LT6656ACDC-4.096#TRMPBF | DFN | 6 | C | $3.76 | $2.75 | View |
| LT6656ACDC-4.096#TRPBF | DFN | 6 | C | $3.76 | $2.70 | View |
| LT6656ACDC-5#PBF | DFN | 6 | C | $3.76 | View | |
| LT6656ACDC-5#TRMPBF | DFN | 6 | C | $3.76 | $2.75 | View |
| LT6656ACDC-5#TRPBF | DFN | 6 | C | $3.76 | $2.70 | View |
| LT6656ACS6-1.25#PBF | SOT | 6 | C | $3.42 | View | |
| LT6656ACS6-1.25#TRMPBF | SOT | 6 | C | $3.42 | $2.50 | View |
| LT6656ACS6-1.25#TRPBF | SOT | 6 | C | $3.42 | $2.45 | View |
| LT6656ACS6-2.048#PBF | SOT | 6 | C | $3.42 | View | |
| LT6656ACS6-2.048#TRMPBF | SOT | 6 | C | $3.42 | $2.50 | View |
| LT6656ACS6-2.048#TRPBF | SOT | 6 | C | $3.42 | $2.45 | View |
| LT6656ACS6-2.5#PBF | SOT | 6 | C | $3.42 | View | |
| LT6656ACS6-2.5#TRMPBF | SOT | 6 | C | $3.42 | $2.50 | View |
| LT6656ACS6-2.5#TRPBF | SOT | 6 | C | $3.42 | $2.45 | View |
| LT6656ACS6-3#PBF | SOT | 6 | C | $3.42 | View | |
| LT6656ACS6-3#TRMPBF | SOT | 6 | C | $3.42 | $2.50 | View |
| LT6656ACS6-3#TRPBF | SOT | 6 | C | $3.42 | $2.45 | View |
| LT6656ACS6-3.3#PBF | SOT | 6 | C | $3.42 | View | |
| LT6656ACS6-3.3#TRMPBF | SOT | 6 | C | $3.42 | $2.50 | View |
| LT6656ACS6-3.3#TRPBF | SOT | 6 | C | $3.42 | $2.45 | View |
| LT6656ACS6-4.096#PBF | SOT | 6 | C | $3.42 | View | |
| LT6656ACS6-4.096#TRMPBF | SOT | 6 | C | $3.42 | $2.50 | View |
| LT6656ACS6-4.096#TRPBF | SOT | 6 | C | $3.42 | $2.45 | View |
| LT6656ACS6-5#PBF | SOT | 6 | C | $3.42 | View | |
| LT6656ACS6-5#TRMPBF | SOT | 6 | C | $3.42 | $2.50 | View |
| LT6656ACS6-5#TRPBF | SOT | 6 | C | $3.42 | $2.45 | View |
| LT6656AIDC-1.25#PBF | DFN | 6 | I | $4.21 | View | |
| LT6656AIDC-1.25#TRMPBF | DFN | 6 | I | $4.21 | $3.07 | View |
| LT6656AIDC-1.25#TRPBF | DFN | 6 | I | $4.21 | $3.02 | View |
| LT6656AIDC-2.048#PBF | DFN | 6 | I | $4.21 | View | |
| LT6656AIDC-2.048#TRMPBF | DFN | 6 | I | $4.21 | $3.07 | View |
| LT6656AIDC-2.048#TRPBF | DFN | 6 | I | $4.21 | $3.02 | View |
| LT6656AIDC-2.5#PBF | DFN | 6 | I | $4.21 | View | |
| LT6656AIDC-2.5#TRMPBF | DFN | 6 | I | $4.21 | $3.07 | View |
| LT6656AIDC-2.5#TRPBF | DFN | 6 | I | $4.21 | $3.02 | View |
| LT6656AIDC-3#PBF | DFN | 6 | I | $4.21 | View | |
| LT6656AIDC-3#TRMPBF | DFN | 6 | I | $4.21 | $3.07 | View |
| LT6656AIDC-3#TRPBF | DFN | 6 | I | $4.21 | $3.02 | View |
| LT6656AIDC-3.3#PBF | DFN | 6 | I | $4.21 | View | |
| LT6656AIDC-3.3#TRMPBF | DFN | 6 | I | $4.21 | $3.07 | View |
| LT6656AIDC-3.3#TRPBF | DFN | 6 | I | $4.21 | $3.02 | View |
| LT6656AIDC-4.096#PBF | DFN | 6 | I | $4.21 | View | |
| LT6656AIDC-4.096#TRMPBF | DFN | 6 | I | $4.21 | $3.07 | View |
| LT6656AIDC-4.096#TRPBF | DFN | 6 | I | $4.21 | $3.02 | View |
| LT6656AIDC-5#PBF | DFN | 6 | I | $4.21 | View | |
| LT6656AIDC-5#TRMPBF | DFN | 6 | I | $4.21 | $3.07 | View |
| LT6656AIDC-5#TRPBF | DFN | 6 | I | $4.21 | $3.02 | View |
| LT6656AIS6-1.25#PBF | SOT | 6 | I | $3.42 | View | |
| LT6656AIS6-1.25#TRMPBF | SOT | 6 | I | $3.83 | $2.80 | View |
| LT6656AIS6-1.25#TRPBF | SOT | 6 | I | $3.83 | $2.75 | View |
| LT6656AIS6-2.048#PBF | SOT | 6 | I | $3.83 | View | |
| LT6656AIS6-2.048#TRMPBF | SOT | 6 | I | $3.83 | $2.80 | View |
| LT6656AIS6-2.048#TRPBF | SOT | 6 | I | $3.83 | $2.75 | View |
| LT6656AIS6-2.5#PBF | SOT | 6 | I | $3.83 | View | |
| LT6656AIS6-2.5#TRMPBF | SOT | 6 | I | $3.83 | $2.80 | View |
| LT6656AIS6-2.5#TRPBF | SOT | 6 | I | $3.83 | $2.75 | View |
| LT6656AIS6-3#PBF | SOT | 6 | I | $3.83 | View | |
| LT6656AIS6-3#TRMPBF | SOT | 6 | I | $3.83 | $2.80 | View |
| LT6656AIS6-3#TRPBF | SOT | 6 | I | $3.83 | $2.75 | View |
| LT6656AIS6-3.3#PBF | SOT | 6 | I | $3.83 | View | |
| LT6656AIS6-3.3#TRMPBF | SOT | 6 | I | $3.83 | $2.80 | View |
| LT6656AIS6-3.3#TRPBF | SOT | 6 | I | $3.83 | $2.75 | View |
| LT6656AIS6-4.096#PBF | SOT | 6 | I | $3.83 | View | |
| LT6656AIS6-4.096#TRMPBF | SOT | 6 | I | $3.83 | $2.80 | View |
| LT6656AIS6-4.096#TRPBF | SOT | 6 | I | $3.83 | $2.75 | View |
| LT6656AIS6-5#PBF | SOT | 6 | I | $3.83 | View | |
| LT6656AIS6-5#TRMPBF | SOT | 6 | I | $3.83 | $2.80 | View |
| LT6656AIS6-5#TRPBF | SOT | 6 | I | $3.83 | $2.75 | View |
| LT6656BCDC-1.25#PBF | DFN | 6 | C | $2.44 | View | |
| LT6656BCDC-1.25#TRMPBF | DFN | 6 | C | $2.44 | $1.79 | View |
| LT6656BCDC-1.25#TRPBF | DFN | 6 | C | $2.44 | $1.74 | View |
| LT6656BCDC-2.048#PBF | DFN | 6 | C | $2.44 | View | |
| LT6656BCDC-2.048#TRMPBF | DFN | 6 | C | $2.44 | $1.79 | View |
| LT6656BCDC-2.048#TRPBF | DFN | 6 | C | $2.44 | $1.74 | View |
| LT6656BCDC-2.5#PBF | DFN | 6 | C | $2.44 | View | |
| LT6656BCDC-2.5#TRMPBF | DFN | 6 | C | $2.44 | $1.79 | View |
| LT6656BCDC-2.5#TRPBF | DFN | 6 | C | $2.44 | $1.74 | View |
| LT6656BCDC-3#PBF | DFN | 6 | C | $2.44 | View | |
| LT6656BCDC-3#TRMPBF | DFN | 6 | C | $2.44 | $1.79 | View |
| LT6656BCDC-3#TRPBF | DFN | 6 | C | $2.44 | $1.74 | View |
| LT6656BCDC-3.3#PBF | DFN | 6 | C | $2.44 | View | |
| LT6656BCDC-3.3#TRMPBF | DFN | 6 | C | $2.44 | $1.79 | View |
| LT6656BCDC-3.3#TRPBF | DFN | 6 | C | $2.44 | $1.74 | View |
| LT6656BCDC-4.096#PBF | DFN | 6 | C | $2.44 | View | |
| LT6656BCDC-4.096#TRMPBF | DFN | 6 | C | $2.44 | $1.79 | View |
| LT6656BCDC-4.096#TRPBF | DFN | 6 | C | $2.44 | $1.74 | View |
| LT6656BCDC-5#PBF | DFN | 6 | C | $2.44 | View | |
| LT6656BCDC-5#TRMPBF | DFN | 6 | C | $2.44 | $1.79 | View |
| LT6656BCDC-5#TRPBF | DFN | 6 | C | $2.44 | $1.74 | View |
| LT6656BCS6-1.25#PBF | SOT | 6 | C | $2.44 | View | |
| LT6656BCS6-1.25#TRMPBF | SOT | 6 | C | $2.44 | $1.79 | View |
| LT6656BCS6-1.25#TRPBF | SOT | 6 | C | $2.44 | $1.74 | View |
| LT6656BCS6-2.048#PBF | SOT | 6 | C | $2.44 | View | |
| LT6656BCS6-2.048#TRMPBF | SOT | 6 | C | $2.44 | $1.79 | View |
| LT6656BCS6-2.048#TRPBF | SOT | 6 | C | $2.44 | $1.74 | View |
| LT6656BCS6-2.5#PBF | SOT | 6 | C | $2.44 | View | |
| LT6656BCS6-2.5#TRMPBF | SOT | 6 | C | $2.44 | $1.79 | View |
| LT6656BCS6-2.5#TRPBF | SOT | 6 | C | $2.44 | $1.74 | View |
| LT6656BCS6-3#PBF | SOT | 6 | C | $2.44 | View | |
| LT6656BCS6-3#TRMPBF | SOT | 6 | C | $2.44 | $1.79 | View |
| LT6656BCS6-3#TRPBF | SOT | 6 | C | $2.44 | $1.74 | View |
| LT6656BCS6-3.3#PBF | SOT | 6 | C | $2.44 | View | |
| LT6656BCS6-3.3#TRMPBF | SOT | 6 | C | $2.44 | $1.79 | View |
| LT6656BCS6-3.3#TRPBF | SOT | 6 | C | $2.44 | $1.74 | View |
| LT6656BCS6-4.096#PBF | SOT | 6 | C | $2.44 | View | |
| LT6656BCS6-4.096#TRMPBF | SOT | 6 | C | $2.44 | $1.79 | View |
| LT6656BCS6-4.096#TRPBF | SOT | 6 | C | $2.44 | $1.74 | View |
| LT6656BCS6-5#PBF | SOT | 6 | C | $2.44 | View | |
| LT6656BCS6-5#TRMPBF | SOT | 6 | C | $2.44 | $1.79 | View |
| LT6656BCS6-5#TRPBF | SOT | 6 | C | $2.44 | $1.74 | View |
| LT6656BIDC-1.25#PBF | DFN | 6 | I | $2.79 | View | |
| LT6656BIDC-1.25#TRMPBF | DFN | 6 | I | $2.79 | $2.03 | View |
| LT6656BIDC-1.25#TRPBF | DFN | 6 | I | $2.79 | $1.98 | View |
| LT6656BIDC-2.048#PBF | DFN | 6 | I | $2.79 | View | |
| LT6656BIDC-2.048#TRMPBF | DFN | 6 | I | $2.79 | $2.03 | View |
| LT6656BIDC-2.048#TRPBF | DFN | 6 | I | $2.79 | $1.98 | View |
| LT6656BIDC-2.5#PBF | DFN | 6 | I | $2.79 | View | |
| LT6656BIDC-2.5#TRMPBF | DFN | 6 | I | $2.79 | $2.03 | View |
| LT6656BIDC-2.5#TRPBF | DFN | 6 | I | $2.79 | $1.98 | View |
| LT6656BIDC-3#PBF | DFN | 6 | I | $2.79 | View | |
| LT6656BIDC-3#TRMPBF | DFN | 6 | I | $2.79 | $2.03 | View |
| LT6656BIDC-3#TRPBF | DFN | 6 | I | $2.79 | $1.98 | View |
| LT6656BIDC-3.3#PBF | DFN | 6 | I | $2.79 | View | |
| LT6656BIDC-3.3#TRMPBF | DFN | 6 | I | $2.79 | $2.03 | View |
| LT6656BIDC-3.3#TRPBF | DFN | 6 | I | $2.79 | $1.98 | View |
| LT6656BIDC-4.096#PBF | DFN | 6 | I | $2.79 | View | |
| LT6656BIDC-4.096#TRMPBF | DFN | 6 | I | $2.79 | $2.03 | View |
| LT6656BIDC-4.096#TRPBF | DFN | 6 | I | $2.79 | $1.98 | View |
| LT6656BIDC-5#PBF | DFN | 6 | I | $2.79 | View | |
| LT6656BIDC-5#TRMPBF | DFN | 6 | I | $2.79 | $2.03 | View |
| LT6656BIDC-5#TRPBF | DFN | 6 | I | $2.79 | $1.98 | View |
| LT6656BIS6-1.25#PBF | SOT | 6 | I | $2.79 | View | |
| LT6656BIS6-1.25#TRMPBF | SOT | 6 | I | $2.79 | $2.03 | View |
| LT6656BIS6-1.25#TRPBF | SOT | 6 | I | $2.79 | $1.98 | View |
| LT6656BIS6-2.048#PBF | SOT | 6 | I | $2.79 | View | |
| LT6656BIS6-2.048#TRMPBF | SOT | 6 | I | $2.79 | $2.03 | View |
| LT6656BIS6-2.048#TRPBF | SOT | 6 | I | $2.79 | $1.98 | View |
| LT6656BIS6-2.5#PBF | SOT | 6 | I | $2.79 | View | |
| LT6656BIS6-2.5#TRMPBF | SOT | 6 | I | $2.79 | $2.03 | View |
| LT6656BIS6-2.5#TRPBF | SOT | 6 | I | $2.79 | $1.98 | View |
| LT6656BIS6-3#PBF | SOT | 6 | I | $2.79 | View | |
| LT6656BIS6-3#TRMPBF | SOT | 6 | I | $2.79 | $2.03 | View |
| LT6656BIS6-3#TRPBF | SOT | 6 | I | $2.79 | $1.98 | View |
| LT6656BIS6-3.3#PBF | SOT | 6 | I | $2.79 | View | |
| LT6656BIS6-3.3#TRMPBF | SOT | 6 | I | $2.79 | $2.03 | View |
| LT6656BIS6-3.3#TRPBF | SOT | 6 | I | $2.79 | $1.98 | View |
| LT6656BIS6-4.096#PBF | SOT | 6 | I | $2.79 | View | |
| LT6656BIS6-4.096#TRMPBF | SOT | 6 | I | $2.79 | $2.03 | View |
| LT6656BIS6-4.096#TRPBF | SOT | 6 | I | $2.79 | $1.98 | View |
| LT6656BIS6-5#PBF | SOT | 6 | I | $2.79 | View | |
| LT6656BIS6-5#TRMPBF | SOT | 6 | I | $2.79 | $2.03 | View |
| LT6656BIS6-5#TRPBF | SOT | 6 | I | $2.79 | $1.98 | View |
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Demo Boards
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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
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