## Overview of ADA4807-1ARJZ-R2 The **ADA4807-1ARJZ-R2** is a high-speed, rail-to-rail input/output, low power voltage feedback amplifier manufactured by **Analog Devices**. It is designed for applications requiring high precision and low noise while maintaining a very small power footprint. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Type** | Operational Amplifier (Op-Amp) | | **Bandwidth (-3dB)** | 180 MHz | | **Slew Rate** | 225 V/µs | | **Input Voltage Noise** | 3.1 nV/√Hz | | **Supply Voltage Range** | 2.7V to 11V (±1.35V to ±5.5V) | | **Quiescent Current** | 1 mA per amplifier | | **Package / Case** | SOT-23-6 | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Physical Layout and Pinout (SOT-23-6) The "ARJZ" suffix indicates the SOT-23 package. Below is a standard pin description for this single-channel amplifier: | Pin Number | Symbol | Description | | :--- | :--- | :--- | | 1 | **VOUT** | Amplifier Output | | 2 | **V-** | Negative Power Supply | | 3 | **+IN** | Non-Inverting Input | | 4 | **-IN** | Inverting Input | | 5 | **DISABLE** | Power-down control (Active Low) | | 6 | **V+** | Positive Power Supply | --- ### 3. Core Features and Benefits * **Rail-to-Rail Performance:** Both inputs and outputs can swing to the supply rails, maximizing dynamic range in low-voltage systems. * **Low Power Consumption:** At only 1 mA of supply current, it is ideal for battery-operated portable devices. * **High Speed/Precision Balance:** It offers a 180 MHz bandwidth, which is rare for an amplifier with such low noise (3.1 nV/√Hz) and low power draw. * **Disable Pin:** Features a power-down mode that reduces current consumption to micro-amps when the device is not in use. --- ### 4. Typical Applications 1. **High Resolution ADC Drivers:** Used as a buffer or gain stage for 16-bit to 18-bit Successive Approximation Register (SAR) ADCs. 2. **Portable Instrumentation:** Handheld medical or industrial testing equipment. 3. **Active Filters:** High-speed filter designs requiring high gain-bandwidth products. 4. **Battery-Powered Systems:** Any signal conditioning where power efficiency is critical. --- ### 5. Part Number Breakdown ```text ADA4807 - 1 - A - RJZ - R2 | | | | | | | | | +-- Reel Size (R2 = 250 units) | | | +-------- Package Code (SOT-23-6) | | +------------- Temperature Grade (-40°C to +125°C) | +----------------- Number of Channels (1 = Single) +------------------------ Base Model Number ```