ADA4350ARUZ-R7

ADA4350ARUZ-R7 is a FET input analogue front end with an ADC driver. It is an analogue front end for photodetector or other sensors whose output produces a current proportional to the sensed parameter or voltage input applications where the system requires the user to select between very precise gain levels to maximize the dynamic range. It integrates a FET input amplifier, a switching network, and an ADC driver with all functions controllable via a serial peripheral interface (SPI) or parallel control logic into a single IC. The FET input amplifier has very low voltage noise and current noise making it an excellent choice to work with a wide range of photodetectors, sensors, or precision data acquisition systems. It is used in applications such as current-to-voltage (I to V) conversions, photodiode preamplifiers, chemical analysers, mass spectrometry, molecular spectroscopy, laser/LED receivers, and data acquisition systems.

• Low noise, low input bias current FET input amplifier, differential mode and single-ended mode
• Integrated analogue-to-digital converter (ADC) driver, adjustable output common-mode voltage
• SPI or parallel switch control of all functions, wide operating voltage range from 3.3V to 12V
• 20MHz typical -3dB bandwidth at (Gain (G) = -5, VOUT = 200mV p-p)
• Slew rate is 60V/µs typical at (TA = 25°C, +VS = +5V, -VS = -5V, RL = 1Kohm)
• Input voltage noise is 92nV/√Hz typical at (f = 10Hz, TA = 25°C, +VS = 5V, −VS = 0V)
• Sampling and feedback switch off leakage is ±0.5pA typical at (TA = 25°C)
• Quiescent current is 8.5mA typical at (TA = 25°C, +VS = +5V, -VS = -5V, RL = 1Kohm)
• Settling time to 0.1% is 100ns typical at (G = -5, VOUT = 2V step, TA = 25°C)
• Operating temperature range from -40°C to +85°C, 28-lead TSSOP package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party