Datasheet LT1027LS8 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Precision, Low Noise, High Stability Hermetic Voltage Reference |
| Pages / Page | 14 / 1 — FeaTures. DescripTion. applicaTions. Typical applicaTion. Supplying VREF … |
| File Format / Size | PDF / 3.1 Mb |
| Document Language | English |
FeaTures. DescripTion. applicaTions. Typical applicaTion. Supplying VREF and VCC to the LTC1290 12-Bit ADC
Model Line for this Datasheet
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LT1027LS8 Precision, Low Noise, High Stability Hermetic Voltage Reference
FeaTures DescripTion
n Hermetic 5mm × 5mm LCC Leadless Chip Carrier The LT®1027LS8 is a precision reference that combines Package: low drift and noise with excellent long-term stability and n Insensitive to Humidity high output accuracy. The reference output will source up n Thermal Hysteresis: 8ppm (0°C to 70°C) to 15mA and sink up to 10mA, and remain constant with n Thermal Hysteresis: 12ppm (–40°C to 85°C) input voltage variations. n Low Drift: 5ppm/°C Max The hermetic package provides outstanding humidity and n High Accuracy: ±0.10% Max thermal hysteresis performance. The LT1027LS8 is only n Low Noise: <1ppm Peak-to-Peak (0.1Hz to 10Hz) 5mm × 5mm × 1.5mm, offering an alternative to large n Low Long Term Drift through-hole metal can voltage references, such as the n 12ppm at 1000Hr industry standard LT1021. The LT1027LS8 offers similar n 18ppm at 3000Hr performance to the LT1027, with additional stability from n Sinks 10mA, Sources 15mA the hermetic package. n Wide Supply Range to 40V n 8-Pin (5mm × 5mm) LS8 Package LT1027LS8 is based on a buried Zener diode structure, which enables temperature and time stability, and ex- tremely low noise performance of < 1ppm peak-to-peak.
applicaTions
The LT1027LS8 operates on a supply voltage from 8V up n Instrumentation and Test Equipment to 40V. The subsurface Zener exhibits better time stability n High Resolution Data Acquisition Systems than even the best bandgap reference, and the hermetic n A/D and D/A Converters package maintains that stability over a wide range of n Precision Regulators environmental conditions. n Precision Scales L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear n Digital Voltmeters Technology Corporation. All other trademarks are the property of their respective owners.
Typical applicaTion Supplying VREF and VCC to the LTC1290 12-Bit ADC Output Voltage Temperature Drift
5.010 CH0 VCC SCLK CH1 ACLK CH2 D 5.005 OUT TO µC ANALOG CH3 D INPUTS CH4 IN CS CH5 TAGE (V) 8V TO 40V CH6 5.000 CH7 LTC1290 COM OUTPUT VOL V 4.995 IN VOUT REF+ + 2.2µF LT1027LS8 REF– + 4.990–40 –25 0 25 50 75 85 VTRIM 10k 22µF AGND V– DGND TEMPERATURE (°C) GND 1027LS8 TA01b 1027LS8 TA01a 1027ls8f For more information www.linear.com/LT1027LS8 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Typical Application Related Parts
FeaTures DescripTion
n Hermetic 5mm × 5mm LCC Leadless Chip Carrier The LT®1027LS8 is a precision reference that combines Package: low drift and noise with excellent long-term stability and n Insensitive to Humidity high output accuracy. The reference output will source up n Thermal Hysteresis: 8ppm (0°C to 70°C) to 15mA and sink up to 10mA, and remain constant with n Thermal Hysteresis: 12ppm (–40°C to 85°C) input voltage variations. n Low Drift: 5ppm/°C Max The hermetic package provides outstanding humidity and n High Accuracy: ±0.10% Max thermal hysteresis performance. The LT1027LS8 is only n Low Noise: <1ppm Peak-to-Peak (0.1Hz to 10Hz) 5mm × 5mm × 1.5mm, offering an alternative to large n Low Long Term Drift through-hole metal can voltage references, such as the n 12ppm at 1000Hr industry standard LT1021. The LT1027LS8 offers similar n 18ppm at 3000Hr performance to the LT1027, with additional stability from n Sinks 10mA, Sources 15mA the hermetic package. n Wide Supply Range to 40V n 8-Pin (5mm × 5mm) LS8 Package LT1027LS8 is based on a buried Zener diode structure, which enables temperature and time stability, and ex- tremely low noise performance of < 1ppm peak-to-peak.
applicaTions
The LT1027LS8 operates on a supply voltage from 8V up n Instrumentation and Test Equipment to 40V. The subsurface Zener exhibits better time stability n High Resolution Data Acquisition Systems than even the best bandgap reference, and the hermetic n A/D and D/A Converters package maintains that stability over a wide range of n Precision Regulators environmental conditions. n Precision Scales L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear n Digital Voltmeters Technology Corporation. All other trademarks are the property of their respective owners.
Typical applicaTion Supplying VREF and VCC to the LTC1290 12-Bit ADC Output Voltage Temperature Drift
5.010 CH0 VCC SCLK CH1 ACLK CH2 D 5.005 OUT TO µC ANALOG CH3 D INPUTS CH4 IN CS CH5 TAGE (V) 8V TO 40V CH6 5.000 CH7 LTC1290 COM OUTPUT VOL V 4.995 IN VOUT REF+ + 2.2µF LT1027LS8 REF– + 4.990–40 –25 0 25 50 75 85 VTRIM 10k 22µF AGND V– DGND TEMPERATURE (°C) GND 1027LS8 TA01b 1027LS8 TA01a 1027ls8f For more information www.linear.com/LT1027LS8 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Typical Application Related Parts
