Product Details
●The AD743 is an ultralow noise precision, FET input, monolithic operational amplifier. It offers a combination of the ultralow voltage noise generally associated with bipolar input op amps and the very low input current of a FET-input device. Furthermore, the AD743 does not exhibit an output phase reversal when the negative common-mode voltage limit is exceeded.
●The AD743"s guaranteed, maximum input voltage noise of 4.0 nV/(root)Hz at 10 kHz is unsurpassed for a FET-input monolithic op amp, as is the maximum 1.0 µV p-p, 0.1 to 10 Hz noise. The AD743 also has excellent dc performance with 250 pA maximum input bias current and 0.5 mV maximum offset voltage.
●The AD743 is specifically designed for use as a preamp in capacitive sensors, such as ceramic hydrophones. It is available in five performance grades. The AD743J and AD743K are rated over the commercial temperature range of 0°C to +70°C. The AD743A and AD743B are rated over the industrial temperature range of -40°C to +85°C. The AD743S is rated over the military temperature range of -55°C to +125°C and is available processed to MIL-STD-883B, Rev. C.
●The AD743 is available in 8-pin plastic mini-DIP, 8-pin cerdip, 16-pin SOIC, or in chip form.
●### Features and Benefits
● Ultralow Noise Performance
●2.9 nV/vHz at 10 kHz
●0.38 µV p-p, 0.1 Hz to 10 Hz
●6.9 fA/vHz Current Noise at 1 kHz
● Excellent DC Performance
●0.5 mV Max Offset Voltage
●250 pA Max Input Bias Current
●1000 V/mV Min Open-Loop Gain
● AC Performance
●2.8 V/µs Slew Rate
●4.5 MHz Unity-Gain Bandwidth
●THD = 0.0003% @ 1 kHz
●Available in Tape and Reel in
●Accordance with EIA-481A Standard
