ADA4528-2ARMZ-R7

The ADA4528-1/ADA4528-2 are ultralow noise, zero-drift operational amplifiers with rail-to-rail input and output swing. With an offset voltage of 2.5 μV, offset voltage drift of 0.015 μV/°C, and typical noise of 97 nV p-p [0.1 Hz to 10 Hz, Av = +100], these devices are ideal for applications where error sources cannot be tolerated. The ADA4528-1/ADA4528-2 feature a wide supply voltage range of 2.2 V to 5.5 V, high gain, and excellent CMRR and PSRR characteristics, making them the ideal choice for precision amplification of low-level signals in applications such as position and pressure sensors, strain gauges, and medical instrumentation. The ADA4528-1/ADA4528-2 are rated for the −40°C to +125°C extended industrial temperature range. The ADA4528-1 and ADA4528-2 are available in 8-lead MSOP and 8-lead LFCSP packages.

Applications

• Thermocouple/Thermopile
• Load Cell and Bridge Sensor
• Precision Instrumentation
• Electronic Scale
• Medical Instrument
• Handheld Test Equipment

Key features

• Low offset voltage: 2.5 μV (max)
• Low offset voltage drift: 0.015 μV/°C (max)
• Low noise: 5.6 nV/√Hz (f = 1 kHz, Av = +100), 97 nV p-p (f = 0.1 Hz to 70 Hz, Av = +100)
• Open-loop gain: 130 dB (min)
• CMRR: 135 dB (min)
• PSRR: 130 dB (min)
• Unity-gain crossover: 4 MHz
• Gain-bandwidth product: 3 MHz (Av = +100)
• -3 dB closed-loop bandwidth: 6.2 MHz
• Single-supply operation: 2.2 V to 5.5 V
• Dual-supply operation: ±1.1 V to ±2.75 V
• Rail-to-rail input and output
• Unity-gain stable