LTC1250CN8#PBF

LTC®1250 is a high-performance, very low-noise zero-drift bridge operational amplifier. It is combination of low front-end noise and DC precision makes it ideal for use with low-impedance bridge transducers. It 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. The internal nulling clock is set at 5KHz for optimum low frequency noise and offset drift; no external connections are necessary. Typical applications are electronic scales, strain gauge amplifiers, thermocouple amplifiers, high resolution data acquisition, low noise transducers, instrumentation amplifiers.

• No external components required, pin compatible with standard 8-pin op amps
• Input offset voltage is ±10µV maximum (TA = 25°C, VIN = ±5V)
• Average input offset drift is ±0.05µV/°C maximum (TA = 25°C, VIN = ±5V)
• Input noise current is 4.0fA/√Hz typical (TA = 25°C, VIN = ±5V, f = 10Hz)
• Input bias current is ±200pA maximum (TA = 25°C, VIN = ±5V)
• Common mode rejection ratio is 130dB typical (VCM = –4V to 3V, VIN=±5V, TA = 25°C)
• Power supply rejection ratio is 130dB typical (VS = ±2.375V to ±8V, TA = 25°C)
• Slew rate is 10V/µs typical (RL = 10k, CL = 50pF, TA = 25°C)
• Gain bandwidth product is 1.5MHz (VIN = ±5V, TA = 25°C)
• 8-lead plastic DIP package, operating temperature range from 0°C to 70°C

附註

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