Overview
The AD8542ARU-REEL, produced by Analog Devices Inc., is a dual rail-to-rail input and output, single-supply operational amplifier. This component is part of the AD8541/AD8542/AD8544 family, which includes single, dual, and quad configurations. The AD8542 is designed for low power consumption and high performance, making it suitable for a variety of applications, including battery-operated devices and systems requiring low current draw.
Key Specifications
| Parameter | Symbol | Typical Value | Units |
|---|---|---|---|
| Supply Voltage Range | VS | 2.7 to 5.5 | V |
| Supply Current per Amplifier | ISY | 45 | μA |
| Bandwidth | - | 1 | MHz |
| Input Bias Current | IB | 4 | pA |
| Slew Rate | SR | 0.4 to 0.8 | V/μs |
| Settling Time to 0.01% (1 V step) | tS | 5 | μs |
| Gain Bandwidth Product | GBP | 980 | kHz |
| Phase Margin | ΦM | 64 | Degrees |
| Voltage Noise Density at 1 kHz | en | 42 | nV/√Hz |
Key Features
- Single-supply operation: 2.7 V to 5.5 V
- Low supply current: 45 μA per amplifier
- Wide bandwidth: 1 MHz
- No phase reversal
- Low input bias currents: 4 pA
- Unity gain stable
- Rail-to-rail input and output
- AEC-Q100 qualified for automotive applications
Applications
- ASIC input or output amplifiers
- Sensor interfaces
- Piezoelectric transducer amplifiers
- Medical instrumentation
- Mobile communications
- Audio outputs
- Portable systems
- Active filters and gain stages
Q & A
- What is the supply voltage range for the AD8542?
The AD8542 operates from a single supply voltage range of 2.7 V to 5.5 V.
- What is the typical supply current per amplifier for the AD8542?
The typical supply current per amplifier is 45 μA.
- What is the bandwidth of the AD8542?
The bandwidth of the AD8542 is 1 MHz.
- Does the AD8542 have rail-to-rail input and output capabilities?
Yes, the AD8542 has rail-to-rail input and output capabilities.
- Is the AD8542 suitable for automotive applications?
Yes, the AD8542 is AEC-Q100 qualified for automotive applications.
- What is the slew rate of the AD8542?
The slew rate of the AD8542 is between 0.4 V/μs and 0.8 V/μs.
- What is the settling time to 0.01% for a 1 V step input?
The settling time to 0.01% for a 1 V step input is 5 μs.
- What is the gain bandwidth product of the AD8542?
The gain bandwidth product of the AD8542 is 980 kHz.
- What is the phase margin of the AD8542?
The phase margin of the AD8542 is 64 degrees.
- What are some common applications of the AD8542?
Common applications include ASIC input or output amplifiers, sensor interfaces, piezoelectric transducer amplifiers, medical instrumentation, and portable systems.
