LT1168 - LT1168是Low Power, SingleResistor Gain Programmable, Precision Instrumentation Amplifier
LT1168是Linear公司的一款精准放大器产品，LT1168是Low Power, SingleResistor Gain Programmable, Precision Instrumentation Amplifier，本站介绍了LT1168的封装应用图解、特点和优点、功能等，并给出了与LT1168相关的凌力尔特元器件型号供参考。
LT1168 - Low Power, SingleResistor Gain Programmable, Precision Instrumentation Amplifier
LT1168 - Low Power, SingleResistor Gain Programmable, Precision Instrumentation Amplifier - Linear Technology（凌力尔特）
功能描述
The LT1168 is a micropower, precision instrumentation amplifier that requires only one external resistor to set gains of 1 to 10,000. The low voltage noise of 10nV/rtHz (at 1kHz) is not compromised by low power dissipation (350µA typical for ±15V supplies). The wide supply range of ±2.3V to ±18V allows the LT1168 to fit into a wide variety of industrial as well as battery-powered applications.
The high accuracy of the LT1168 is due to a 20ppm maximum nonlinearity and 0.4% max gain error (G = 10). Previous monolithic instrumentation amps cannot handle a 2k load resistor whereas the nonlinearity of the LT1168 is specified for loads as low as 2k. The LT1168 is laser trimmed for very low input offset voltage (40µV max), drift (0.3µV/°C), high CMRR (90dB, G = 1) and PSRR (103dB, G = 1). Low input bias currents of 250pA max are achieved with the use of superbeta processing. The output can handle capacitive loads up to 1000pF in any gain configuration while the inputs are ESD protected up to 13kV (human body). The LT1168 with two external 5k resistors passes the IEC 1000-4-2 level 4 specification.
The LT1168 is a pin-for-pin improved second source for the AD620 and INA118. The LT1168, offered in 8-pin PDIP and SO packages, requires significantly less PC board area than discrete op amp resistor designs. These advantages make the LT1168 the most cost effective solution for precision instrumentation amplifier applications.
特点
Supply Current: 530µA Max Meets IEC 1000-4-2 Level 4 (±15kV) ESD Tests with Two External 5k Resistors Single Gain Set Resistor: G = 1 to 10,000 Gain Error: G = 10, 0.4% Max Input Offset Voltage Drift: 0.3µV/°C Max Gain Nonlinearity: G = 10, 20ppm Max Input Offset Voltage: 40µV Max Input Bias Current: 250pA Max PSRR at AV =1: 103dB Min CMRR at AV = 1: 90dB Min Wide Supply Range: ±2.3V to ±18V 1kHz Voltage Noise: 10nV/rtHz 0.1Hz to 10Hz Noise: 0.28µVP-P Available in 8-Pin PDIP and SO Packages应用
Bridge Amplifiers Strain Gauge Amplifiers Thermocouple Amplifiers Differential to Single-Ended Converters Differential Voltage to Current Converters Data Acquisition Battery-Powered and Portable Equipment Medical Instrumentation Scales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) |
| LT1168ACN8 | N-8 | C | $7.10 | $6.05 |
| LT1168ACN8#PBF | N-8 | C | $7.10 | $6.05 |
| LT1168ACS8 | SO-8 | C | $7.10 | $6.05 |
| LT1168ACS8#PBF | SO-8 | C | $7.10 | $6.05 |
| LT1168ACS8#TR | SO-8 | C | | $6.11 |
| LT1168ACS8#TRPBF | SO-8 | C | | $6.11 |
| LT1168AIN8 | N-8 | I | $8.15 | $6.95 |
| LT1168AIN8#PBF | N-8 | I | $8.15 | $6.95 |
| LT1168AIS8 | SO-8 | I | $8.15 | $6.95 |
| LT1168AIS8#PBF | SO-8 | I | $8.15 | $6.95 |
| LT1168AIS8#TR | SO-8 | I | | $7.00 |
| LT1168AIS8#TRPBF | SO-8 | I | | $7.00 |
| LT1168CN8 | N-8 | C | $4.35 | $3.70 |
| LT1168CN8#PBF | N-8 | C | $4.35 | $3.70 |
| LT1168CS8 | SO-8 | C | $4.35 | $3.70 |
| LT1168CS8#PBF | SO-8 | C | $4.35 | $3.70 |
| LT1168CS8#TR | SO-8 | C | | $3.76 |
| LT1168CS8#TRPBF | SO-8 | C | | $3.76 |
| LT1168IN8 | N-8 | I | $5.00 | $4.25 |
| LT1168IN8#PBF | N-8 | I | $5.00 | $4.25 |
| LT1168IS8 | SO-8 | I | $5.00 | $4.25 |
| LT1168IS8#PBF | SO-8 | I | $5.00 | $4.25 |
| LT1168IS8#TR | SO-8 | I | | $4.31 |
| LT1168IS8#TRPBF | SO-8 | I | | $4.31 |
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