Overview
The AD8542AR-REEL7, 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 amplifier configurations. The AD8542 is designed for low power consumption and high performance, making it suitable for a wide range of applications.
It operates from a single supply voltage ranging from 2.7 V to 5.5 V and features a low supply current of 45 µA per amplifier. The amplifier is unity gain stable and provides a bandwidth of 1 MHz, along with a gain bandwidth product of 980 kHz. The rail-to-rail input and output capabilities and low input bias currents make it versatile for various uses.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | −40°C ≤ TA ≤ +125°C | 1 mV | 6 mV | 7 mV | mV |
| Input Bias Current | IB | −40°C ≤ TA ≤ +85°C | 4 pA | 60 pA | 100 pA | pA |
| Input Offset Current | IOS | −40°C ≤ TA ≤ +85°C | 0.1 pA | 30 pA | 50 pA | pA |
| Input Voltage Range | 0 V | 2.7 V | V | |||
| Common-Mode Rejection Ratio | CMRR | VCM = 0 V to 2.7 V | 40 dB | 45 dB | 38 dB | dB |
| Supply Current/Amplifier | ISY | VO = 0 V | 40 µA | 60 µA | 75 µA | µA |
| Slew Rate | SR | RL = 100 kΩ | 0.4 V/µs | 0.8 V/µs | V/µs | |
| Gain Bandwidth Product | GBP | 980 kHz | kHz | |||
| Phase Margin | ΦM | 64 Degrees | Degrees | |||
| Voltage Noise Density | en | f = 1 kHz | 42 nV/√Hz | 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
Q & A
- What is the operating voltage range of the AD8542AR-REEL7?
The AD8542AR-REEL7 operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- What is the typical supply current per amplifier for the AD8542AR-REEL7?
The typical supply current per amplifier is 45 µA.
- What is the bandwidth of the AD8542AR-REEL7?
The bandwidth of the AD8542AR-REEL7 is 1 MHz.
- Does the AD8542AR-REEL7 suffer from phase reversal?
No, the AD8542AR-REEL7 does not suffer from phase reversal.
- What are the input bias currents of the AD8542AR-REEL7?
The input bias currents are as low as 4 pA.
- Is the AD8542AR-REEL7 unity gain stable?
Yes, the AD8542AR-REEL7 is unity gain stable.
- What are the key applications of the AD8542AR-REEL7?
The key applications include ASIC input or output amplifiers, sensor interfaces, piezoelectric transducer amplifiers, medical instrumentation, mobile communications, audio outputs, and portable systems.
- Is the AD8542AR-REEL7 qualified for automotive applications?
Yes, the AD8542AR-REEL7 is AEC-Q100 qualified for automotive applications.
- What is the gain bandwidth product of the AD8542AR-REEL7?
The gain bandwidth product is 980 kHz.
- What is the phase margin of the AD8542AR-REEL7?
The phase margin is typically 64 degrees.
