Instrumentation amp claims fastest in the market
The high-bandwidth AD8429 instrumentation amp is offered as one of the fastest in amps on the market with a current feedback architecture that offers 15-MHz (G=1) bandwidth and a 22-V/μs slew rate, which is 30% higher than competing instrumentation amps. With a low distortion of 130-dB, the part is robust enough for applications that demand reduced size, power and distortion levels, such as healthcare instrumentation, precision data acquisition equipment and industrial vibration analysis.
With 1-nV/√Hz input noise and 45-nV/√Hz output noise, the amp operates across the extended industrial temperature range of –40° to 125°C. Input bias current of 50-nA is orders of magnitude lower than the 12,000-nA bias current of other in amps, while the 100-μV input offset voltage of the AD8429 is two to three times lower. The AD8429 has a 90-dB CMRR when operating in dc mode and an 80-dB CMRR in ac mode.
Available in a 4 x 5-mm, JEDEC compliant, plastic SOIC_N package, the part also features a ±4-V to ±18-V dual power supply. In addition gain is set from 1 to 10,000 with a single resistor, and a reference pin allows the user to offset the output voltage. ($3.50 ea/1,000 — available now)