The **OP482ACBZ-R7** is a high-speed, quad-channel, JFET-input operational amplifier manufactured by Analog Devices. It is designed for applications requiring high precision, low power consumption, and high input impedance. --- ## 1. Technical Specifications The following table outlines the primary electrical characteristics of the OP482ACBZ-R7: | Parameter | Specification | | :--- | :--- | | **Number of Channels** | 4 (Quad) | | **Input Type** | JFET | | **Slew Rate** | 9 V/µs | | **Gain Bandwidth Product** | 4 MHz | | **Input Bias Current** | 3 pA (Typical) | | **Supply Voltage Range** | ±4.5V to ±18V | | **Supply Current (per amp)** | 210 µA | | **Package / Case** | SOIC-14 | | **Operating Temp Range** | -40°C to +85°C | --- ## 2. Key Features and Benefits * **Low Input Bias Current:** Because it uses JFET technology at the input stage, the bias current is extremely low (pico-ampere range). This makes it ideal for high-impedance sensors and photodiode amplifiers. * **Low Power Consumption:** With a supply current of only 210 µA per amplifier, it is suitable for battery-powered or portable instruments. * **Fast Response:** A 9 V/µs slew rate is relatively high for a low-power op-amp, allowing it to handle fast-changing signals without significant distortion. * **High Input Impedance:** JFET inputs provide G-Ohm levels of input resistance, preventing loading errors in sensitive measurement circuits. --- ## 3. Part Number Breakdown The suffix **ACBZ-R7** provides specific information regarding packaging and environmental standards: | Code Segment | Meaning | | :--- | :--- | | **OP482** | Core Model Number (Quad JFET Op-Amp) | | **A** | Performance Grade (Indicates specific offset/drift specs) | | **CBZ** | Package Code (SOIC_N) and RoHS Compliance (Lead-Free) | | **R7** | Packaging Type (7-inch Tape and Reel, typically 500 units) | --- ## 4. Common Applications Due to its high impedance and low power, the OP482 is commonly found in: 1. **Photodiode Pre-amplifiers:** Converting low-level currents into voltages. 2. **Medical Instrumentation:** Low-power diagnostic tools. 3. **Active Filters:** High-order filters requiring multiple op-amp stages. 4. **Precision Data Acquisition:** Interfacing with high-output impedance sensors.