Overview
The AD548JR is a precision, low power BiFET operational amplifier produced by Analog Devices Inc. This monolithic op amp is designed to offer excellent DC and AC performance, making it ideal for high-performance, low-power applications. The AD548JR is an enhanced replacement for op amps like the LF441 and TL061, providing significant improvements in power dissipation and performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Bias Current (Ib) | 10 pA (max, warmed up) | pA |
| Quiescent Current | 200 µA (max) | µA |
| Offset Voltage | 2 mV (max) | mV |
| Offset Voltage Drift | 20 µV/°C (max) | µV/°C |
| Slew Rate | 1.8 V/µs | V/µs |
| Unity Gain Bandwidth | 1 MHz | MHz |
| Operating Temperature Range | 0°C to +70°C (commercial), -40°C to +85°C (industrial) | °C |
| Output Current | 15 mA | mA |
| Package Types | 8-lead plastic mini-DIP, SOIC-8 |
Key Features
- Low quiescent current (200 µA max) and low input bias current (10 pA max, warmed up)
- Excellent DC accuracy with a maximum guaranteed input offset voltage of less than 2 mV and an input offset voltage drift of less than 20 µV/°C
- High common-mode rejection (82 dB min on the “B” grade) and high open-loop gain
- Pin compatible with industry standard op amps such as the LF441, TL061, and AD542
- Available in various packages including 8-lead plastic mini-DIP and SOIC-8
- Dual version available (AD648)
- Low 1/f noise, making it suitable for applications requiring low noise performance
Applications
- Battery-powered precision instrument front ends
- CMOS DAC buffers
- High impedance buffer applications
- Any dual supply op amp application requiring low power and excellent DC and AC performance
Q & A
- What is the maximum quiescent current of the AD548JR?
The maximum quiescent current of the AD548JR is 200 µA.
- What is the input bias current of the AD548JR?
The input bias current of the AD548JR is 10 pA (max, warmed up).
- What is the offset voltage of the AD548JR?
The offset voltage of the AD548JR is 2 mV (max).
- What is the slew rate of the AD548JR?
The slew rate of the AD548JR is 1.8 V/µs.
- What is the unity gain bandwidth of the AD548JR?
The unity gain bandwidth of the AD548JR is 1 MHz.
- What are the operating temperature ranges for the AD548JR?
The operating temperature ranges for the AD548JR are 0°C to +70°C (commercial) and -40°C to +85°C (industrial).
- What are the typical applications of the AD548JR?
The AD548JR is typically used in battery-powered precision instrument front ends, CMOS DAC buffers, and high impedance buffer applications.
- Is the AD548JR pin compatible with other op amps?
Yes, the AD548JR is pin compatible with industry standard op amps such as the LF441, TL061, and AD542.
- What packages is the AD548JR available in?
The AD548JR is available in 8-lead plastic mini-DIP and SOIC-8 packages.
- Is a dual version of the AD548JR available?
Yes, a dual version of the AD548JR, known as the AD648, is also available.
