LTC1250 - LTC1250是Very Low Noise Zero-Drift Bridge Amplifier
LTC1250是Linear公司的一款低偏置电流放大器产品，LTC1250是Very Low Noise Zero-Drift Bridge Amplifier，本站介绍了LTC1250的封装应用图解、特点和优点、功能等，并给出了与LTC1250相关的凌力尔特元器件型号供参考。
LTC1250 - Very Low Noise Zero-Drift Bridge Amplifier
LTC1250 - Very Low Noise Zero-Drift Bridge Amplifier - Linear Technology（凌力尔特）
功能描述
The LTC1250 is a high performance, very low noise zerodrift operational amplifier. The LTC1250's combination of low front-end noise and DC precision makes it ideal for use with low impedance bridge transducers. The LTC1250 features typical input noise of 0.75μVP-P from 0.1Hz to 10Hz, and 0.2μVP-P from 0.1Hz to 1Hz. The LTC1250 has DC to 1Hz noise of 0.35μVP-P, surpassing that of low noise bipolar parts including the OP-07, OP-77, and LT1012. The LTC1250 uses the industry-standard single op amp pinout, and requires no external components or nulling signals, allowing it to be a plug-in replacement for bipolar op amps.
The LTC1250 incorporates an improved output stage capable of driving 4.3V into a 1k load with a single 5V supply; it will swing
±4.9V into 5k with ±5V supplies. The input common mode range includes ground with single power supply voltages above 12V. Supply current is 3mA with a ±5V supply, and overload recovery times from positive and negative saturation are 0.5ms and 1.5ms, respectively. The internal nulling clock is set at 5kHz for optimum low frequency noise and offset drift; no external connections are necessary.
The LTC1250 is available in a standard 8-pin plastic DIP and 8-pin SO packages.
Protected by U.S. Patents including 4933642.
特点
Very Low Noise: 0.75μVP-P Typ, 0.1Hz to 10Hz DC to 1Hz Noise Lower Than OP-07 Full Output Swing into 1k Load Offset Voltage: 10μV Max Offset Voltage Drift: 50nV/oC Max Common Mode Rejection Ratio: 110dB Min Power Supply Rejection Ratio: 115dB Min No External Components Required Pin Compatible with Standard 8-Pin Op Amps Available in Standard 8-Pin Plastic DIP and 8-Pin SO Packages应用
Electronic Scales Strain Gauge Amplifiers Thermocouple Amplifiers High Resolution Data Acquisition Low Noise Transducers Instrumentation Amplifiers以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) |
| LTC1250CN8 | N-8 | C | $3.70 | $2.85 |
| LTC1250CN8#PBF | N-8 | C | $3.70 | $2.85 |
| LTC1250CS8 | SO-8 | C | $4.20 | $3.25 |
| LTC1250CS8#PBF | SO-8 | C | $4.20 | $3.25 |
| LTC1250CS8#TR | SO-8 | C | | $3.31 |
| LTC1250CS8#TRPBF | SO-8 | C | | $3.31 |
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