ADA4500-2ARMZ-R7

10兆赫， 14.5纳伏/ A ????赫兹，轨至轨I / O，零输入交越失真放大器 10 MHz, 14.5 nV/√Hz, Rail-to-Rail I/O, Zero Input Crossover Distortion Amplifier

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