Overview
The ADA4528-2ACPZ-R7, produced by Analog Devices Inc., is an ultralow noise, zero-drift operational amplifier. This device features rail-to-rail input and output swing, making it highly versatile for various precision applications. With an offset voltage of 2.5 μV and an offset voltage drift of 0.015 μV/°C, it is well-suited for applications where minimal error is critical. The ADA4528-2 operates over a wide supply range of 2.2 V to 5.5 V for single-supply operation and ±1.1 V to ±2.75 V for dual-supply operation, ensuring flexibility in different system designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Offset Voltage | 2.5 | μV |
| Offset Voltage Drift | 0.015 | μV/°C |
| Input Noise Voltage (0.1 Hz to 10 Hz, AV = +100) | 97 | nV p-p |
| Input Noise Voltage Density (at 1 kHz, AV = +100) | 5.6 | nV/√Hz |
| Common Mode Rejection Ratio (CMRR) | 135 | dB |
| Power Supply Rejection Ratio (PSRR) | 130 | dB |
| Gain Bandwidth Product (GBP) | 3 | MHz |
| -3 dB Closed-Loop Bandwidth | 6.2 | MHz |
| Input Bias Current | 125 | pA |
| Input Capacitance (Differential Mode) | 15 | pF |
| Operating Temperature Range | -40°C to +125°C | |
| Package Type | 8-Lead LFCSP |
Key Features
- Ultralow noise and zero-drift operation, ensuring high precision in signal amplification.
- Rail-to-rail input and output swing, allowing for full utilization of the supply voltage range.
- High common mode rejection ratio (CMRR) and power supply rejection ratio (PSRR), minimizing interference from common-mode signals and power supply noise.
- Wide operating supply range: 2.2 V to 5.5 V for single-supply and ±1.1 V to ±2.75 V for dual-supply operation.
- Unity-gain stable and high gain bandwidth product, suitable for a variety of amplification tasks.
- Extended industrial temperature range operation: -40°C to +125°C.
Applications
- Thermocouple and thermopile amplification.
- Load cell and bridge transducer applications.
- Precision instrumentation, including position and pressure sensors, and strain gages.
- Medical instrumentation, such as ECG and EEG amplifiers.
- Electronic scales and handheld test equipment.
Q & A
- What is the offset voltage of the ADA4528-2?
The offset voltage of the ADA4528-2 is 2.5 μV.
- What is the input noise voltage of the ADA4528-2?
The input noise voltage of the ADA4528-2 is 97 nV p-p from 0.1 Hz to 10 Hz at a gain of +100.
- What is the gain bandwidth product (GBP) of the ADA4528-2?
The gain bandwidth product (GBP) of the ADA4528-2 is 3 MHz.
- What is the common mode rejection ratio (CMRR) of the ADA4528-2?
The CMRR of the ADA4528-2 is 135 dB.
- What is the operating temperature range of the ADA4528-2?
The ADA4528-2 operates over an extended industrial temperature range of -40°C to +125°C.
- What are the package options for the ADA4528-2?
The ADA4528-2 is available in 8-lead MSOP and 8-lead LFCSP packages.
- What are some typical applications of the ADA4528-2?
Typical applications include thermocouple and thermopile amplification, load cell and bridge transducer applications, precision instrumentation, medical instrumentation, electronic scales, and handheld test equipment.
- What is the input bias current of the ADA4528-2?
The input bias current of the ADA4528-2 is 125 pA.
- What is the -3 dB closed-loop bandwidth of the ADA4528-2?
The -3 dB closed-loop bandwidth of the ADA4528-2 is 6.2 MHz.
- Is the ADA4528-2 unity-gain stable?
