Overview
The AD8531ARZ, produced by Analog Devices Inc., is a single, rail-to-rail input/output, single-supply operational amplifier. This device is part of the AD8531/AD8532/AD8534 family, which includes single, dual, and quad configurations. The AD8531ARZ is designed for high output current drive, 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 known for its low supply current and high stability, especially with heavy capacitive loads such as those found in LCD panels.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | V_S | 2.7 | 6 | V | ||
| Output Current | I_OUT | ±250 | mA | |||
| Supply Current per Amplifier | I_S | V_S = 5 V | 750 | μA | ||
| Bandwidth | f | 3 | MHz | |||
| Slew Rate | SR | 5 | V/μs | |||
| Input Bias Current | I_B | −40°C ≤ TA ≤ +85°C | 5 | 50 | 60 | pA |
| Input Offset Voltage | V_OS | −40°C ≤ TA ≤ +85°C | 25 | 30 | mV | |
| Common-Mode Rejection Ratio | CMRR | V_CM = 0 V to 5 V | 38 | 47 | dB |
Key Features
- Single-supply operation: 2.7 V to 6 V
- High output current: ±250 mA
- Low supply current: 750 μA per amplifier at 5 V
- Wide bandwidth: 3 MHz
- Slew rate: 5 V/μs
- No phase reversal
- Low input bias currents
- Unity gain stable
- Rail-to-rail input and output
Applications
- Multimedia audio amplification
- LCD drivers
- ASIC input or output amplifiers
- Headphone drivers
- Audio amplification for computers, sound ports, sound cards, and set-top boxes
- Buffering CMOS DACs, ASICs, or other wide output swing devices in single-supply systems
Q & A
- What is the supply voltage range for the AD8531ARZ?
The AD8531ARZ operates over a single supply voltage range of 2.7 V to 6 V.
- What is the maximum output current of the AD8531ARZ?
The maximum output current is ±250 mA.
- What is the typical supply current per amplifier at 5 V?
The typical supply current per amplifier at 5 V is 750 μA.
- What is the bandwidth of the AD8531ARZ?
The bandwidth is 3 MHz.
- What is the slew rate of the AD8531ARZ?
The slew rate is 5 V/μs.
- Does the AD8531ARZ have phase reversal?
No, the AD8531ARZ does not have phase reversal.
- What are the typical input bias currents for the AD8531ARZ?
The typical input bias currents are 50 pA.
- Is the AD8531ARZ unity gain stable?
- What are some common applications of the AD8531ARZ?
Common applications include multimedia audio amplification, LCD drivers, ASIC input or output amplifiers, and headphone drivers.
- What is the operating temperature range for the AD8531ARZ?
The operating temperature range is −40°C to +85°C.
