Overview
The AD8532AR-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 AD853x family, which includes single, dual, and quad configurations. The AD8532 is particularly notable for its high output drive current of ±250 mA, making it suitable for driving both resistive and capacitive loads. It operates over a single supply voltage range of 2.7 V to 6 V and is characterized by its low supply current, wide bandwidth, and high slew rate.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | VS | 2.7 | 6 | V | ||
| Output Current | IOUT | ±250 | mA | |||
| Bandwidth | BW | 3 | MHz | |||
| Slew Rate | SR | RL = 2 kΩ | 5 | V/μs | ||
| Input Bias Current | IB | −40°C ≤ TA ≤ +85°C | 5 | 50 | 60 | pA |
| Input Offset Current | IOS | −40°C ≤ TA ≤ +85°C | 1 | 25 | 30 | pA |
| Common-Mode Rejection Ratio | CMRR | VCM = 0 V to 5 V | 38 | 45 | dB | |
| Supply Current per Amplifier | ISY | VO = 0 V | 0.70 | 1 | 1.25 | mA |
Key Features
- Single-Supply Operation: The AD8532 operates from a single supply voltage ranging from 2.7 V to 6 V.
- High Output Current: Capable of delivering ±250 mA, making it suitable for driving heavy loads.
- Rail-to-Rail Input and Output: Allows the amplifier to swing from the negative to the positive supply rail, enhancing its versatility in single-supply systems.
- Low Supply Current: Each amplifier consumes only 750 μA at 5 V, making it energy-efficient.
- Wide Bandwidth and High Slew Rate: Features a 3 MHz bandwidth and a 5 V/μs slew rate, ensuring good AC performance.
- No Phase Reversal: Ensures stable operation without phase reversal, even with large input signals.
- Low Input Bias Currents: Very low input bias currents, making it suitable for applications requiring minimal input current.
Applications
- Audio Amplification: Ideal for audio amplification in computers, sound ports, sound cards, and set-top boxes.
- LCD Drivers: Suitable for driving heavy capacitive loads such as those found in LCD panels.
- ASIC Input or Output Amplifiers: Can buffer CMOS DACs, ASICs, or other wide output swing devices in single-supply systems.
- Headphone Drivers: Can be used as headphone drivers due to its high output current capability.
- Multimedia Audio: Used in various multimedia audio applications requiring high output current and low distortion.
Q & A
- What is the supply voltage range for the AD8532?
The AD8532 operates from a single supply voltage ranging from 2.7 V to 6 V.
- What is the maximum output current of the AD8532?
The AD8532 can deliver up to ±250 mA of output current.
- What is the bandwidth of the AD8532?
The AD8532 has a bandwidth of 3 MHz.
- What is the slew rate of the AD8532?
The slew rate of the AD8532 is 5 V/μs.
- Does the AD8532 have rail-to-rail input and output capability?
Yes, the AD8532 features rail-to-rail input and output capability.
- What is the typical supply current per amplifier for the AD8532?
The typical supply current per amplifier is 750 μA at 5 V.
- What are some common applications of the AD8532?
Common applications include audio amplification, LCD drivers, ASIC input or output amplifiers, and headphone drivers.
- What is the operating temperature range for the AD8532?
The AD8532 is specified to operate over the extended industrial temperature range of −40°C to +85°C.
- What are the available package options for the AD8532?
The AD8532 is available in 8-lead SOIC, 8-lead MSOP, and 8-lead TSSOP surface-mount packages.
- Does the AD8532 have low input bias currents?
Yes, the AD8532 has very low input bias currents, making it suitable for applications requiring minimal input current.
