LTC6655 - 0.25ppm Noise, Low Drift Precision References

The LTC?6655 is a complete family of precision bandgap voltage references, offering exceptional noise and drift performance. This low noise and drift is ideally suited for the high resolution measurements required by instrumentation and test equipment. In addition, the LTC6655 is fully specified over the temperature range of –40°C to 125°C, ensuring its suitability for demanding automotive and industrial applications. Advanced curvature compensation allows this bandgap reference to achieve a drift of less than 2ppm/°C with a predictable temperature characteristic and an output voltage accurate to ±0.025%, reducing or eliminating the need for calibration.

The LTC6655 can be powered from as little as 500mV above the output voltage to as much as 13.2V. Superior load regulation with source and sink capability, coupled with exceptional line rejection, ensures consistent performance over a wide range of operating conditions. A shutdown mode is provided for low power applications.

The LTC6655 references are offered in an 8-lead MSOP package and an 8-lead LS8 package. The LS8 is a 5mm × 5mm surface mount hermetic package that provides outstanding stability.

Features
  • Low Noise: 0.25ppmP-P (0.1Hz to 10Hz)?625nVP-P for the LTC6655-2.5
  • Low Drift: 2ppm/°C Max
  • High Accuracy: ±0.025% Max
  • No Humidity Sensitivity (LS8 Package)
  • Thermal Hysteresis (LS8): 30ppm (–40°C to 85°C)
  • Long-Term Drift (LS8): 20ppm/√kHr
  • 100% Tested at –40°C, 25°C and 125°C
  • Load Regulation: <10ppm/mA
  • Sinks and Sources Current: ±5mA
  • Low Dropout: 500mV
  • Maximum Supply Voltage: 13.2V
  • Low Power Shutdown: <20μA Max
  • Available Output Voltages: 1.25V, 2.048V, 2.5V, 3V,?3.3V, 4.096V, 5V
  • Available in an 8-Lead MSOP and High Stability?Hermetic 5mm × 5mm LS8 Packages
Typical Application
LTC6655 Typical Application
LTC6655 Typical Application
Applications
  • Instrumentation and Test Equipment
  • High Resolution Data Acquisition Systems
  • Weigh Scales
  • Precision Battery Monitors
  • Precision Regulators
  • Medical Equipment
Packaging
LTC6655 Package Drawing
LTC6655 Package Drawing
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC6655BHLS8-2.5#PBFLS-8H$9.74$6.99
LTC6655BHLS8-4.096#PBFLS-8H$9.74$6.99
LTC6655BHLS8-5#PBFLS-8H$9.74$6.99
LTC6655BHMS8-1.25#PBFMS-8H$8.02$5.75
LTC6655BHMS8-1.25#TRPBFMS-8H$8.08$5.81
LTC6655BHMS8-2.048#PBFMS-8H$8.02$5.75
LTC6655BHMS8-2.048#TRPBFMS-8H$8.08$5.81
LTC6655BHMS8-2.5#PBFMS-8H$8.02$5.75
LTC6655BHMS8-2.5#TRPBFMS-8H$8.08$5.81
LTC6655BHMS8-3.3#PBFMS-8H$8.02$5.75
LTC6655BHMS8-3.3#TRPBFMS-8H$8.08$5.81
LTC6655BHMS8-3#PBFMS-8H$8.02$5.75
LTC6655BHMS8-3#TRPBFMS-8H$8.08$5.81
LTC6655BHMS8-4.096#PBFMS-8H$8.02$5.75
LTC6655BHMS8-4.096#TRPBFMS-8H$8.08$5.81
LTC6655BHMS8-5#PBFMS-8H$8.02$5.75
LTC6655BHMS8-5#TRPBFMS-8H$8.08$5.81
LTC6655CHLS8-2.5#PBFLS-8H$6.67$4.79
LTC6655CHLS8-4.096#PBFLS-8H$6.67$4.79
LTC6655CHLS8-5#PBFLS-8H$6.67$4.79
LTC6655CHMS8-1.25#PBFMS-8H$5.02$3.60
LTC6655CHMS8-1.25#TRPBFMS-8H$5.08$3.66
LTC6655CHMS8-2.048#PBFMS-8H$5.02$3.60
LTC6655CHMS8-2.048#TRPBFMS-8H$5.08$3.66
LTC6655CHMS8-2.5#PBFMS-8H$5.02$3.60
LTC6655CHMS8-2.5#TRPBFMS-8H$5.08$3.66
LTC6655CHMS8-3.3#PBFMS-8H$5.02$3.60
LTC6655CHMS8-3.3#TRPBFMS-8H$5.08$3.66
LTC6655CHMS8-3#PBFMS-8H$5.02$3.60
LTC6655CHMS8-3#TRPBFMS-8H$5.08$3.66
LTC6655CHMS8-4.096#PBFMS-8H$5.02$3.60
LTC6655CHMS8-4.096#TRPBFMS-8H$5.08$3.66
LTC6655CHMS8-5#PBFMS-8H$5.02$3.60
LTC6655CHMS8-5#TRPBFMS-8H$5.08$3.66
Demo Boards
Part NumberDescriptionPrice
DC1783A-ALTC2380-16 with LTC6655-5/LT6350 Demo Board | 16-Bit, 2Msps, SAR ADC with 96dB SNR. Req DC718 or DC2026$150.00
DC1783A-BLTC2378-16 with LTC6655-5/LT6350 Demo Board | 16-Bit, 1Msps, SAR ADC with 97dB SNR. Req DC718 or DC2026$150.00
DC1783A-CLTC2377-16 with LTC6655-5/LT6350 Demo Board | 16-Bit, 500ksps, SAR ADC with 97dB SNR. Req DC718 or DC2026$150.00
DC1783A-DLTC2376-16 with LTC6655-5/LT6350 Demo Board | 16-Bit, 250ksps, SAR ADC with 97dB SNR. Req DC718 or DC2026$150.00
DC1783A-ELTC2379-18 with LTC6655-5/LT6350 Demo Board | 18-Bit, 1.6Msps, SAR ADC with 101dB SNR. Req DC718 or DC2026$150.00
DC1783A-FLTC2378-18 with LTC6655-5/LT6350 Demo Board | 18-Bit, 1Msps, SAR ADC with 102dB SNR. Req DC718 or DC2026$150.00
DC1783A-GLTC2377-18 with LTC6655-5/LT6350 Demo Board | 18-Bit, 500ksps, SAR ADC with 102dB SNR. Req DC718 or DC2026$150.00
DC1783A-HLTC2376-18 with LTC6655-5/LT6350 Demo Board | 18-Bit, 250ksps, SAR ADC with 102dB SNR. Req DC718 or DC2026$150.00
DC1805A-ALTC6362 with 2Msps 16-bit LTC2380-16 Demo Board | SAR ADC, LTC6655-5. Req DC718 or DC2026$150.00
DC1805A-BLTC6362 with 1Msps 16-bit LTC2378-16 Demo Board | SAR ADC, LTC6655-5. Req DC718 or DC2026$150.00
DC1805A-CLTC6362 with 500ksps 16-bit LTC2377-16 Demo Board | SAR ADC, LTC6655-5. Req DC718 or DC2026$150.00
DC1805A-DLTC6362 with 250ksps 16-bit LTC2376-16 Demo Board | SAR ADC, LTC6655-5. Req DC718 or DC2026$150.00
DC1805A-ELTC6362 with 1.6Msps 18-bit LTC2379-18 Demo Board | SAR ADC, LTC6655-5. Req DC718 or DC2026$150.00
DC1805A-FLTC6362 with 1Msps 18-bit LTC2378-18 Demo Board | SAR ADC, LTC6655-5. Req DC718 or DC2026$150.00
DC1805A-GLTC6362 with 500ksps 18-bit LTC2377-18 Demo Board | SAR ADC, LTC6655-5. Req DC718 or DC2026$150.00
DC1805A-HLTC6362 with 250ksps 18-bit LTC2376-18 SAR ADC, LTC6655-5. Req DC718 or DC2026$150.00
DC1813A-ALTC2370-16 with LTC6655-5/LT6202 Demo Board | 16-Bit, 2Msps, Pseudo-Differential Unipolar SAR ADC with 94dB SNR. Req DC718 or DC590$150.00
DC1813A-BLTC2368-16 with LTC6655-5/LT6202 Demo Board | 16-Bit, 1Msps, Pseudo-Differential Unipolar SAR ADC with 94.7dB SNR. Req DC718 or DC590$150.00
DC1813A-CLTC2367-16 with LTC6655-5/LT6202 Demo Board |16-Bit, 500ksps, Pseudo-Differential Unipolar SAR ADC with 94.7dB SNR. Req DC718 or DC590$150.00
DC1813A-DLTC2364-16 with LTC6655-5/LT6202 Demo Board | 16-Bit, 250ksps, Pseudo-Differential Unipolar SAR ADC with 94.7dB SNR. Req DC718 or DC590$150.00
DC1813A-ELTC2369-18 with LTC6655-5/LT6202 Demo Board | 18-Bit, 1.6Msps, Pseudo-Differential Unipolar SAR ADC with 96.5dB SNR. Req DC718 or DC590$150.00
DC1813A-FLTC2368-18 with LTC6655-5/LT6202 Demo Board |18-Bit, 1Msps, Pseudo-Differential Unipolar SAR ADC with 97dB SNR. Req DC718 or DC590$150.00
DC1813A-GLTC2367-18 with LTC6655-5/LT6202 Demo Board | 18-Bit, 500ksps, Pseudo-Differential Unipolar SAR ADC with 97dB SNR. Req DC718 or DC590$150.00
DC1813A-HLTC2364-18 with LTC6655-5/LT6202 Demo Board | 18-Bit, 250ksps, Pseudo-Differential Unipolar SAR ADC with 97dB SNR. Req DC718 or DC590$150.00
DC1826A-ALTC2389-18 with LTC6655/LT6201, 18-Bit, 2.5Msps, Serial/Parallel SAR ADC with 99.8dB SNR. Req DC718$150.00
DC1826A-ELTC2389-16 with LTC6655/LT6201, 16-Bit, 2.5Msps, Serial/Parallel SAR ADC with 96dB SNR. Req DC718$150.00
DC1925A-ALTC2378-20 Demo Board | 20-Bit, 1Msps, SAR ADC with 104dB SNR. Req DC2026$200.00
DC1925A-BLTC2377-20 Demo Board | 20-Bit, 500ksps, SAR ADC with 104dB SNR. Req DC2026$200.00
DC1925A-CLTC2376-20 Demo Board | 20-Bit, 250ksps, SAR ADC with 104dB SNR. Req DC2026$200.00
DC2095A-ALTC6655BHLS8-2.5V Demo Board | Ultra Low Noise, 2.5V Precision Voltage Reference in Ceramic Package$25.00
DC2095A-BLTC6655BHLS8-4V Demo Board | Ultra Low Noise, 4.096V Precision Voltage Reference in Ceramic Package$25.00
DC2095A-CLTC6655BHLS8-5V Demo Board | Ultra Low Noise, 5V Precision Voltage Reference in Ceramic Package$25.00
Companion Boards
Part NumberDescriptionPrice
DC2026CLinduino One Isolated USB Demo Board: An Arduino- and QuikEval-Compatible Code Development Platform$75.00
DC718CUSB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps)$300.00
DC1075AClock Divider board$50.00
DC590BIsolated USB Serial Controller for Linear Technology QuikEval-Compatible Demo Boards$50.00
DC890BUSB Data Acquisition Controller, for PScope Evaluation Kits (up to 250Mbps, CMOS/LVDS)$300.00
Datasheet
Application Note
Design Note
Reliability Data
Product Selector Card
LT Journal
Press Release
CAD Symbol
Ad
LTspice
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