Overview
The AD8542ARMZ, 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, known for its low power consumption and high performance at low voltages. The AD8542 is particularly suited for applications requiring low supply current and high bandwidth, making it ideal for a variety of electronic systems, including mobile communications, medical instrumentation, and portable devices.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | VS | 2.7 | 5.5 | V | ||
| Supply Current/Amplifier | ISY | VO = 0 V | 40 | 60 | 75 | µA |
| Bandwidth | GBP | 1 MHz | ||||
| Slew Rate | SR | RL = 100 kΩ | 0.4 | 0.8 | V/µs | |
| Input Bias Current | IB | 4 | 60 | 1000 | pA | |
| Offset Voltage | VOS | 1 | 6 | 7 | mV | |
| Phase Margin | ΦM | 64 Degrees | ||||
| Voltage Noise Density | en | f = 1 kHz | 42 nV/√Hz |
Key Features
- Single-supply operation: 2.7 V to 5.5 V
- Low supply current: 45 µA/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
Q & A
- What is the supply voltage range for the AD8542ARMZ?
The AD8542ARMZ operates from a single supply voltage ranging from 2.7 V to 5.5 V. - What is the typical supply current per amplifier?
The typical supply current per amplifier is 60 µA. - What is the bandwidth of the AD8542ARMZ?
The bandwidth of the AD8542ARMZ is typically 1 MHz. - Does the AD8542ARMZ have rail-to-rail input and output capabilities?
Yes, the AD8542ARMZ features rail-to-rail input and output capabilities. - What are the typical applications of the AD8542ARMZ?
The AD8542ARMZ is used in applications such as ASIC input or output amplifiers, sensor interfaces, piezoelectric transducer amplifiers, medical instrumentation, mobile communications, audio outputs, and portable systems. - Is the AD8542ARMZ qualified for automotive applications?
Yes, the AD8542ARMZ is AEC-Q100 qualified for automotive applications. - What is the slew rate of the AD8542ARMZ?
The slew rate of the AD8542ARMZ is typically 0.8 V/µs. - What is the phase margin of the AD8542ARMZ?
The phase margin of the AD8542ARMZ is typically 64 degrees. - What is the voltage noise density of the AD8542ARMZ at 1 kHz?
The voltage noise density of the AD8542ARMZ at 1 kHz is typically 42 nV/√Hz. - Is the AD8542ARMZ unity gain stable?
Yes, the AD8542ARMZ is unity gain stable.
