LTC6655 - 0.25ppm Noise, Low Drift Precision References
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
Description
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.
Packaging
For complete and up to date package information and drawings, please refer to our packaging page
MS-8,LS-8
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 |
|---|---|---|---|---|---|---|
| LTC6655BHLS8-2.5#PBF | 8 | H | $9.74 | $6.99 | View | |
| LTC6655BHMS8-1.25#PBF | MSOP | 8 | H | $8.02 | $5.75 | View |
| LTC6655BHMS8-1.25#TRPBF | MSOP | 8 | H | $8.08 | $5.81 | View |
| LTC6655BHMS8-2.048#PBF | MSOP | 8 | H | $8.02 | $5.75 | View |
| LTC6655BHMS8-2.048#TRPBF | MSOP | 8 | H | $8.08 | $5.81 | View |
| LTC6655BHMS8-2.5#PBF | MSOP | 8 | H | $8.02 | $5.75 | View |
| LTC6655BHMS8-2.5#TRPBF | MSOP | 8 | H | $8.08 | $5.81 | View |
| LTC6655BHMS8-3#PBF | MSOP | 8 | H | $8.02 | $5.75 | View |
| LTC6655BHMS8-3#TRPBF | MSOP | 8 | H | $8.08 | $5.81 | View |
| LTC6655BHMS8-3.3#PBF | MSOP | 8 | H | $8.02 | $5.75 | View |
| LTC6655BHMS8-3.3#TRPBF | MSOP | 8 | H | $8.08 | $5.81 | View |
| LTC6655BHMS8-4.096#PBF | MSOP | 8 | H | $8.02 | $5.75 | View |
| LTC6655BHMS8-4.096#TRPBF | MSOP | 8 | H | $8.08 | $5.81 | View |
| LTC6655BHMS8-5#PBF | MSOP | 8 | H | $8.02 | $5.75 | View |
| LTC6655BHMS8-5#TRPBF | MSOP | 8 | H | $8.08 | $5.81 | View |
| LTC6655CHLS8-2.5#PBF | 8 | H | $6.67 | $4.79 | View | |
| LTC6655CHMS8-1.25#PBF | MSOP | 8 | H | $5.02 | $3.60 | View |
| LTC6655CHMS8-1.25#TRPBF | MSOP | 8 | H | $5.08 | $3.66 | View |
| LTC6655CHMS8-2.048#PBF | MSOP | 8 | H | $5.02 | $3.60 | View |
| LTC6655CHMS8-2.048#TRPBF | MSOP | 8 | H | $5.08 | $3.66 | View |
| LTC6655CHMS8-2.5#PBF | MSOP | 8 | H | $5.02 | $3.60 | View |
| LTC6655CHMS8-2.5#TRPBF | MSOP | 8 | H | $5.08 | $3.66 | View |
| LTC6655CHMS8-3#PBF | MSOP | 8 | H | $5.02 | $3.60 | View |
| LTC6655CHMS8-3#TRPBF | MSOP | 8 | H | $5.08 | $3.66 | View |
| LTC6655CHMS8-3.3#PBF | MSOP | 8 | H | $5.02 | $3.60 | View |
| LTC6655CHMS8-3.3#TRPBF | MSOP | 8 | H | $5.08 | $3.66 | View |
| LTC6655CHMS8-4.096#PBF | MSOP | 8 | H | $5.02 | $3.60 | View |
| LTC6655CHMS8-4.096#TRPBF | MSOP | 8 | H | $5.08 | $3.66 | View |
| LTC6655CHMS8-5#PBF | MSOP | 8 | H | $5.02 | $3.60 | View |
| LTC6655CHMS8-5#TRPBF | MSOP | 8 | H | $5.08 | $3.66 | View |
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1783A-A | LTC2380-16 with LTC6655-5/LT6350: 16-Bit, 2Msps, SAR ADC with 96dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1783A-B | LTC2378-16 with LTC6655-5/LT6350: 16-Bit, 1Msps, SAR ADC with 97dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1783A-C | LTC2377-16 with LTC6655-5/LT6350: 16-Bit, 500ksps, SAR ADC with 97dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1783A-D | LTC2376-16 with LTC6655-5/LT6350: 16-Bit, 250ksps, SAR ADC with 97dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1783A-E | LTC2379-18 with LTC6655-5/LT6350: 18-Bit, 1.6Msps, SAR ADC with 101dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1783A-F | LTC2378-18 with LTC6655-5/LT6350: 18-Bit, 1Msps, SAR ADC with 102dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1783A-G | LTC2377-18 with LTC6655-5/LT6350: 18-Bit, 500ksps, SAR ADC with 102dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1783A-H | LTC2376-18 with LTC6655-5/LT6350: 18-Bit, 250ksps, SAR ADC with 102dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1805A-A | LTC6362 with 2Msps 16-bit LTC2380-16 SAR ADC, LTC6655-5. Req DC718 or DC590 | $150.00 | |
| DC1805A-B | LTC6362 with 1Msps 16-bit LTC2378-16 SAR ADC, LTC6655-5. Req DC718 or DC590 | $150.00 | |
| DC1805A-C | LTC6362 with 500ksps 16-bit LTC2377-16 SAR ADC, LTC6655-5. Req DC718 or DC590 | $150.00 | |
| DC1805A-D | LTC6362 with 250ksps 16-bit LTC2376-16 SAR ADC, LTC6655-5. Req DC718 or DC590 | $150.00 | |
| DC1805A-E | LTC6362 with 1.6Msps 18-bit LTC2379-18 SAR ADC, LTC6655-5. Req DC718 or DC590 | $150.00 | |
| DC1805A-F | LTC6362 with 1Msps 18-bit LTC2378-18 SAR ADC, LTC6655-5. Req DC718 or DC590 | $150.00 | |
| DC1805A-G | LTC6362 with 500ksps 18-bit LTC2377-18 SAR ADC, LTC6655-5. Req DC718 or DC590 | $150.00 | |
| DC1805A-H | LTC6362 with 250ksps 18-bit LTC2376-18 SAR ADC, LTC6655-5. Req DC718 or DC590 | $150.00 | |
| DC1813A-A | LTC2370-16 with LTC6655-5/LT6202: 16-Bit, 2Msps, Pseudo-Differential Unipolar SAR ADC with 94dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1813A-B | LTC2368-16 with LTC6655-5/LT6202: 16-Bit, 1Msps, Pseudo-Differential Unipolar SAR ADC with 94.7dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1813A-C | LTC2367-16 with LTC6655-5/LT6202: 16-Bit, 500ksps, Pseudo-Differential Unipolar SAR ADC with 94.7dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1813A-E | LTC2369-18 with LTC6655-5/LT6202: 18-Bit, 1.6Msps, Pseudo-Differential Unipolar SAR ADC with 96.5dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1813A-F | LTC2368-18 with LTC6655-5/LT6202: 18-Bit, 1Msps, Pseudo-Differential Unipolar SAR ADC with 97dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1813A-G | LTC2367-18 with LTC6655-5/LT6202: 18-Bit, 500ksps, Pseudo-Differential Unipolar SAR ADC with 97dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1813A-H | LTC2364-18 with LTC6655-5/LT6202: 18-Bit, 250ksps, Pseudo-Differential Unipolar SAR ADC with 97dB SNR. Req DC718 or DC590 | $150.00 | |
| DC1826A-A | LTC2389-18 with LTC6655/LT6201, 18-Bit, 2.5Msps, Serial/Parallel SAR ADC with 99.8dB SNR. Req DC718 | $150.00 | |
| DC1826A-E | LTC2389-16 with LTC6655/LT6201, 16-Bit, 2.5Msps, Serial/Parallel SAR ADC with 96dB SNR. Req DC718 | $150.00 | |
| Buy Now | |||
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1216A-A | 100MHz High Speed ADC Clock Source | $150.00 | |
| DC590B | USB Serial Controller for Linear Technology QuikEval Demo Boards | $50.00 | |
| DC718C | USB Data Acquisition Controller, for QuikEval -II Evaluation Kits | $300.00 | |
| DC1075A | Clock Divider board | $50.00 | |
| DC1216A-B | 122.88MHz High Speed ADC Clock Source | $150.00 | |
| Buy Now | |||
Applications
- Instrumentation and Test Equipment
- High Resolution Data Acquisition Systems
- Weigh Scales
- Precision Battery Monitors
- Precision Regulators
- Medical Equipment
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