LTC1052CN8#PBF

LTC1052 is a zero-drift operational amplifier. Chopper-stabilization constantly corrects offset voltage errors. Both initial offset and changes in the offset due to time, temperature and common mode voltage are corrected. This, coupled with picoampere input currents, gives this amplifier unmatched performance. Low frequency (1/f) noise is also improved by the chopping technique. Instead of increasing continuously at a 3dB/octave rate, the internal chopping causes noise to decrease at low frequencies. The chopper circuitry is entirely internal and completely transparent to the user. Only two external capacitors are required to alternately sample-and-hold the offset correction voltage and the amplified input signal. It is used in applications such as thermocouple amplifiers, strain gauge amplifiers, low level signal processing, medical instrumentation.

• Input offset voltage is ±0.5µV typical at (TA = 25°C, VS = ±5V)
• Average input offset drift is ±0.01µV/°C typical at (TA = 25°C, VS = ±5V)
• Input bias current is ±1pA typical at (TA = 25°C, VS = ±5V)
• Long-term offset voltage stability 100nV/√Month typical at (TA = 25°C, VS = ±5V)
• Common mode rejection ratio is 120dB typical at (VCM = V– to 2.7V, TA = 25°C)
• Power supply rejection ratio is 120dB typical at (VSUPPLY = ±2.375V to ±8V
• Single supply operation range from 4.75V to 16V
• Supply current is 1.7mA typical at (TA = 25°C, VS = ±5V)
• Gain bandwidth product is 1.2MHz typical at (TA = 25°C, VS = ±5V)
• Operating temperature is -40°C to 85°C, package style is 8-lead PDIP

Notes

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