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The ADA4528-2ACPZ is an ultra-low-noise, zero-drift operational amplifier with rail-to-rail input and output swing. This device has an offset voltage of 2.5 μV, an offset voltage drift of 0.015 μV/°C, and typical noise of 97 μV p-p (0.1 Hz to 10 Hz, AV = +100), making it ideal for applications where error sources are not permitted.

The ADA4528-2ACPZ offers a wide operating supply voltage range of 2.2 V to 5.5 V, high gain, excellent CMRR and PSRR characteristics, making it an ideal choice for precision amplification of low-level signals, such as position and pressure sensors, strain gauges, and medical instruments.

The ADA4528-2ACPZ is rated for an extended industrial temperature range of −40°C to +125°C. The ADA4528-2ACPZ is available in an 8-pin LFCSP package.

ADA4528-2ACPZ Features

Low offset voltage: 2.5 μV (maximum)

Low offset voltage drift: 0.015 μV/°C (maximum)

Low noise:

5.6 nV/√Hz at f = 1 kHz, AV = +100

97 nV p-p (f = 0.1 Hz to 10 Hz, AV = +100)

Open-loop voltage gain: 130 dB (minimum)

Common-mode rejection ratio (CMRR): 135 dB (minimum)

Power supply rejection ratio (PSRR): 130 dB (minimum)  

Gain-bandwidth product: 4 MHz  

Gain-bandwidth product: 3 MHz (AV = +100)  

-3 dB closed-loop bandwidth: 6.2 MHz

ADA4528-2ACPZ Applications  

Thermocouples/thermopiles  

Weighing sensors and bridge sensors  

Precision instruments  

Electronic scales  

Medical instruments  

Handheld test equipment

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