Overview
The AD648JRZ-REEL is a dual precision, low power BiFET operational amplifier produced by Analog Devices Inc. This device is part of the AD648 series, known for its excellent combination of low input offset voltage, low bias current, and low quiescent current. The AD648JRZ-REEL is particularly suited for applications requiring high precision and low power consumption, such as battery-powered devices, precision instrument front ends, and CMOS DAC buffers.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage | - | - | 2 mV | - |
| Input Offset Voltage Drift | - | - | 20 µV/°C | - |
| Input Bias Current | - | - | 10 pA | - |
| Quiescent Current (Both Amplifiers) | 340 | - | 400 | µA |
| Supply Voltage | ±4.5 | - | ±18 | V |
| Operating Temperature Range (Commercial) | 0°C | - | 70°C | - |
| Frequency Response (Unity Gain, Small Signal) | 0.8 | - | 1.0 | MHz |
| Slew Rate (Unity Gain) | 1.0 | - | 1.8 | V/µs |
| Settling Time to ±0.01% | 8 | - | - | µs |
| Open-Loop Gain (VO = ±10 V, RL ≥ 10 kΩ) | 300 | - | 1000 | V/mV |
| Output Voltage (RL ≥ 10 kΩ, TMIN to TMAX) | ±12 | - | ±13 | V |
| Short Circuit Current | 15 | - | - | mA |
Key Features
- Low input offset voltage (max 2 mV) and drift (max 20 µV/°C) achieved through laser wafer drift trimming technology.
- Low bias current (max 10 pA) and low quiescent current (max 400 µA).
- High common-mode rejection (min 82 dB for the “B” grade) and high open-loop gain.
- Excellent frequency response and slew rate, making it suitable for high-performance applications.
- Available in various temperature ranges: commercial (0°C to 70°C), industrial (–40°C to +85°C), and military (–55°C to +125°C).
- Pinned out in a standard dual op amp configuration and available in multiple package options (SOIC, plastic mini-DIP, CERDIP).
Applications
- Battery-powered devices requiring low power consumption and high precision.
- Precision instrument front ends where low noise and high accuracy are crucial.
- CMOS DAC buffers to reduce output errors.
- High impedance buffer applications requiring better than 12-bit linearity.
Q & A
- What is the maximum input offset voltage of the AD648JRZ-REEL? The maximum input offset voltage is 2 mV.
- What is the input bias current of the AD648JRZ-REEL? The input bias current is a maximum of 10 pA.
- What is the quiescent current of the AD648JRZ-REEL? The quiescent current is a maximum of 400 µA for both amplifiers.
- What are the operating temperature ranges for the AD648JRZ-REEL? The commercial grade operates from 0°C to 70°C, the industrial grade from –40°C to +85°C, and the military grade from –55°C to +125°C.
- What are the package options available for the AD648JRZ-REEL? It is available in SOIC, plastic mini-DIP, and CERDIP packages.
- What is the slew rate of the AD648JRZ-REEL? The slew rate is between 1.0 V/µs and 1.8 V/µs.
- What is the settling time to ±0.01% for the AD648JRZ-REEL? The settling time is 8 µs.
- What is the common-mode rejection ratio (CMRR) of the AD648JRZ-REEL? The CMRR is a minimum of 82 dB for the “B” grade.
- What are some typical applications of the AD648JRZ-REEL? Typical applications include battery-powered devices, precision instrument front ends, CMOS DAC buffers, and high impedance buffer applications.
- How does the AD648JRZ-REEL handle temperature variations? The AD648JRZ-REEL is designed to minimize changes in input offset voltage due to self-heating effects, ensuring stable performance over its operating temperature range.
