LT1021 Precision Reference
The LT®1021 is a precision reference with ultralow drift and noise, extremely good long term stability and almost total immunity to input voltage variations. The reference output will both source and sink up to 10mA. Three voltages are available: 5V, 7V and 10V. The 7V and 10V units can be used as shunt regulators (two-terminal zeners) with the same precision characteristics as the three terminal connection. Special care has been taken to minimize thermal regulation effects and temperature induced hysteresis.
The LT1021 references are based on a buried zener diode structure that eliminates noise and stability problems associated with surface breakdown devices. Further, a subsurface zener exhibits better temperature drift and time stability than even the best bandgap references.
Unique circuit design makes the LT1021 the first IC reference to offer ultralow drift without the use of high power on-chip heaters.
The LT1021-7 uses no resistive divider to set output voltage, and therefore exhibits the best long term stability and temperature hysteresis. The LT1021-5 and LT1021- 10 are intended for systems requiring a precise 5V or 10V reference with an initial tolerance as low as ±0.05%
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LT1021 订购信息和价格参考Package Variations and Pricing
| 器件型号 | 封装 | 引脚 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
| LT1021BCH-5 | METAL CAN | 8 | C | $8.40 | $6.90 |
| LT1021BCN8-10 | PDIP | 8 | C | $6.42 | $5.25 |
| LT1021BCN8-10#PBF | PDIP | 8 | C | $6.42 | $5.25 |
| LT1021BCN8-5 | PDIP | 8 | C | $6.42 | $5.25 |
| LT1021BCN8-5#PBF | PDIP | 8 | C | $6.42 | $5.25 |
| LT1021BCN8-7 | PDIP | 8 | C | $6.42 | $5.25 |
| LT1021BCN8-7#PBF | PDIP | 8 | C | $6.42 | $5.25 |
| LT1021BMH-10 | METAL CAN | 8 | M | $18.25 | $15.00 |
| LT1021BMH-10/883 | METAL CAN | 8 | M | $48.00 | |
| LT1021BMH-5 | METAL CAN | 8 | M | $18.25 | $15.00 |
| LT1021BMH-5/883 | METAL CAN | 8 | M | $48.00 | |
| LT1021CCH-5 | METAL CAN | 8 | C | $6.25 | $5.15 |
| LT1021CCN8-10 | PDIP | 8 | C | $4.25 | $3.50 |
| LT1021CCN8-10#PBF | PDIP | 8 | C | $4.25 | $3.50 |
| LT1021CCN8-5 | PDIP | 8 | C | $4.25 | $3.50 |
| LT1021CCN8-5#PBF | PDIP | 8 | C | $4.25 | $3.50 |
| LT1021CIN8-10 | PDIP | 8 | I | $5.75 | $4.65 |
| LT1021CIN8-10#PBF | PDIP | 8 | I | $5.75 | $4.65 |
| LT1021CIN8-5 | PDIP | 8 | I | $5.75 | $4.65 |
| LT1021CIN8-5#PBF | PDIP | 8 | I | $5.75 | $4.65 |
| LT1021CMH-10/883 | METAL CAN | 8 | M | $40.95 | |
| LT1021CMH-5 | METAL CAN | 8 | M | $10.00 | $8.20 |
| LT1021CMH-5/883 | METAL CAN | 8 | M | $40.95 | |
| LT1021DCN8-10 | PDIP | 8 | C | $3.17 | $2.65 |
| LT1021DCN8-10#PBF | PDIP | 8 | C | $3.17 | $2.65 |
| LT1021DCN8-5 | PDIP | 8 | C | $3.17 | $2.65 |
| LT1021DCN8-5#PBF | PDIP | 8 | C | $3.17 | $2.65 |
| LT1021DCN8-7 | PDIP | 8 | C | $2.08 | $1.75 |
| LT1021DCN8-7#PBF | PDIP | 8 | C | $2.08 | $1.75 |
| LT1021DCS8-10 | SO | 8 | C | $3.92 | $3.20 |
| LT1021DCS8-10#PBF | SO | 8 | C | $3.92 | $3.20 |
| LT1021DCS8-10#TR | SO | 8 | C | $3.26 | |
| LT1021DCS8-10#TRPBF | SO | 8 | C | $3.26 | |
| LT1021DCS8-5 | SO | 8 | C | $3.92 | $3.20 |
| LT1021DCS8-5#PBF | SO | 8 | C | $3.92 | $3.20 |
| LT1021DCS8-5#TR | SO | 8 | C | $3.26 | |
| LT1021DCS8-5#TRPBF | SO | 8 | C | $3.26 | |
| LT1021DCS8-7 | SO | 8 | C | $3.92 | $3.20 |
| LT1021DCS8-7#PBF | SO | 8 | C | $3.92 | $3.20 |
| LT1021DCS8-7#TR | SO | 8 | C | $3.26 | |
| LT1021DCS8-7#TRPBF | SO | 8 | C | $3.26 | |
| LT1021DIN8-10 | PDIP | 8 | I | $4.25 | $3.50 |
| LT1021DIN8-10#PBF | PDIP | 8 | I | $4.25 | $3.50 |
| LT1021DIN8-5 | PDIP | 8 | I | $4.25 | $3.50 |
| LT1021DIN8-5#PBF | PDIP | 8 | I | $4.25 | $3.50 |
| LT1021DMH-10/883 | METAL CAN | 8 | M | $31.50 | |
| LT1021DMH-5/883 | METAL CAN | 8 | M | $31.50 |
LT1021 数据手册及相关资料下载
- 数据手册(英文) : LT1021 - Precision Reference.PDF
- 应用指南 (英文) : AN13 - High Speed Comparator Techniques.PDF
- 应用指南 (英文) : AN14 - Designs for High Performance Voltage-to-Frequency Converters.PDF
- 应用指南 (英文) : AN17 - Considerations for Successive Approximation A ->D Converters.PDF
- 应用指南 (英文) : AN23 - Micropower Circuits for Signal Conditioning.PDF
- 应用指南 (英文) : AN29 - Some Thoughts on DC-DC Converters.PDF
- 应用指南 (英文) : AN42 - Voltage Reference Circuit Collection.PDF
- 应用指南 (英文) : AN43 - Bridge Circuits.PDF
- 应用指南 (英文) : AN62 - Data Acquisition Circuit Collection.PDF
- 应用指南 (英文) : AN7 - Some Techniques for Direct Digitization of Transducer Outputs.PDF
- 应用指南 (英文) : AN74 - Component and Measurement Advances Ensure 16-Bit DAC Settling Time.PDF
- 应用指南 (英文) : AN82 - Understanding and Applying Voltage References.PDF
- 应用指南 (英文) : AN86 - A Standards Lab Grade 20-Bit DAC with 0.1ppm/° Drift: The Dedicated Art of Digitizing One Part Per Million.PDF
- 设计要点 (英文) : DN10 - Electrically Isolating Data Acquisition Systems.PDF
- 设计要点 (英文) : DN138 - Micropower ADC and DAC in SO-8 Give PCs a 12-Bit Analog Interface.PDF
- 设计要点 (英文) : DN19 - A Two Wire Isolated and Powered 10-Bit Data Acquisition System.PDF
- 设计要点 (英文) : DN29 - A Single Supply RS232 Interface for Bipolar A to D Converters.PDF
- 设计要点 (英文) : DN294 - 250ksps, 16-Bit Micropower ADC Offers an Excellent Combination of SIze, Power and Speed.PDF
- 设计要点 (英文) : DN35 - 12-Bit 8-Channel Data Acquisition System Interfaces to IBM PC Serial Port.PDF
- 可靠性数据 : R003 Reliability Data .PDF
- LT Journal : Aug 1998 Component and Measurement Advances Ensure 16-Bit DAC Settling Time (Part One).PDF
- LT Journal : March 2009 - How to Choose a Voltage Reference.PDF
- LT Journal : May 2000 Dual Operational Amplifier Combines 16-Bit Precision with High Speed.PDF
