Product Details
●The ADA4500-2 is a dual 10 MHz, 14.5 nV/√Hz, low power amplifier featuring rail-to-rail input and output swings while operating from a 2.7 V to 5.5 V single power supply. Compatible with industry-standard nominal voltages of +3.0 V, +3.3 V, +5.0 V, and ±2.5 V.
●Employing a novel zero-crossover distortion circuit topology, this amplifier offers high linearity over the full, rail-to-rail input common-mode range, with excellent power supply rejection ratio (PSRR) and common-mode rejection ratio (CMRR) performance without the crossover distortion seen with the traditional complementary rail-to-rail input stage. The resulting op amp also has excellent precision, wide bandwidth, and very low bias current.
●This combination of features makes the ADA4500-2 an ideal choice for precision sensor applications because it minimizes errors due to power supply variation and maintains high CMRR over the full input voltage range. The ADA4500-2 is also an excellent amplifier for driving analog-to-digital converters (ADCs) because the output does not distort with the common-mode voltage, which enables the ADC to use its full input voltage range, maximizing the dynamic range of the conversion subsystem.
●Many applications such as sensors, handheld instrumentation, precision signal conditioning, and patient monitors can benefit from the features of the ADA4500-2.
●The ADA4500-2 is specified for the extended industrial temperature range (−40°C to +125°C) and available in the standard 8-lead MSOP and 8-lead LFCSP packages.
●Applications
● Pressure and position sensors
● Remote security
● Medical monitors
● Process controls
● Hazard detectors
● Photodiode applications
●### Features and Benefits
● Power supply rejection ratio (PSRR): 98 dB minimum
● Common-mode rejection ratio (CMRR): 95 dB minimum
● Offset voltage: 120 μV maximum
● Single-supply operation: 2.7 V to 5.5 V
● Dual-supply operation: ±1.35 V to ±2.75 V
● Wide bandwidth: 10 MHz
● Rail-to-rail input and output
● Low noise
● 2 μV p-p from 0.1 Hz to 10 Hz
● 14.5 nV/√Hz at 1 kHz
● Very low input bias current: 2 pA maximum
