Overview
The AD548JRZ-REEL is a precision, low-power BiFET operational amplifier produced by Analog Devices Inc. This component is part of the AD548 series, known for its excellent DC and AC performance, making it suitable for a variety of applications requiring low power consumption and high precision.
The AD548 is fabricated using ion-implanted FET and laser wafer trimming technologies, ensuring low bias current and low quiescent current. It is available in several package options, including the SOIC (R-8) package for the AD548JRZ-REEL variant.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | ±4.5 | - | ±18 | V |
| Quiescent Current | 170 | - | 200 | µA |
| Input Offset Voltage | - | - | 250 | µV |
| Input Offset Voltage Drift | - | - | 2 | µV/°C |
| Bias Current | - | - | 10 | pA |
| Slew Rate | - | - | 1.8 | V/µs |
| Unity Gain Bandwidth | - | - | 1 | MHz |
| Output Voltage (RL ≥ 10 kΩ) | ±12 | - | ±13 | V |
| Short Circuit Current | - | - | 15 | mA |
| Operating Temperature Range | 0 | - | 70 | °C |
Key Features
- Low quiescent current: 200 µA max, making it suitable for battery-powered applications.
- Low input bias current: 10 pA max, warmed up.
- Low input offset voltage: 250 µV max, and low drift of 2 µV/°C.
- High common-mode rejection ratio (CMRR): 82 dB min.
- High open-loop gain ensuring better than 12-bit linearity in high impedance buffer applications.
- Available in various package options including SOIC, plastic, and hermetic metal can packages.
- Laser wafer trimming technology for precise DC performance.
Applications
- Battery-powered precision instrument front ends.
- CMOS DAC buffers.
- High impedance buffer applications.
- Precision analog circuits requiring low power and high DC accuracy.
- General-purpose operational amplifier applications where low power and precision are critical.
Q & A
- What is the maximum quiescent current of the AD548?
The maximum quiescent current of the AD548 is 200 µA.
- What is the input bias current of the AD548?
The input bias current of the AD548 is 10 pA max, warmed up.
- What is the input offset voltage of the AD548?
The input offset voltage of the AD548 is 250 µV max.
- What is the slew rate of the AD548?
The slew rate of the AD548 is 1.8 V/µs.
- What is the unity gain bandwidth of the AD548?
The unity gain bandwidth of the AD548 is 1 MHz.
- What are the typical operating temperature ranges for the AD548?
The typical operating temperature ranges for the AD548 are from 0°C to 70°C for commercial grade.
- Is the AD548JRZ-REEL still in production?
No, the AD548JRZ-REEL is obsolete and no longer manufactured.
- What package options are available for the AD548?
The AD548 is available in SOIC, plastic, and hermetic metal can packages, as well as in chip form.
- What are some common applications of the AD548?
The AD548 is commonly used in battery-powered precision instrument front ends, CMOS DAC buffers, and high impedance buffer applications.
- Does the AD548 have high common-mode rejection ratio (CMRR)?
Yes, the AD548 has a high CMRR of 82 dB min.
