Overview
The AD8138ARMZ-REEL, produced by Analog Devices Inc., is a high-performance differential amplifier designed to simplify differential signal processing. It can function as either a single-ended-to-differential amplifier or a differential-to-differential amplifier, making it highly versatile in various applications. Manufactured using Analog Devices' proprietary XFCB bipolar process, the AD8138 offers a -3 dB bandwidth of 320 MHz and delivers differential signals with minimal harmonic distortion. This component is particularly useful in driving differential analog-to-digital converters (ADCs) and other differential input devices, enhancing the overall performance of the system.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Package | 8-MSOP (0.118", 3.00mm Width) |
| Bandwidth | 320 MHz (-3 dB) |
| Supply Voltage | ±5 V |
| Operating Temperature | -40°C to +85°C |
| Mounting Type | Surface Mount |
| Quiescent Current | Approx. 10 mA |
| Harmonic Distortion | Lowest available in a differential amplifier |
Key Features
- High Bandwidth: 320 MHz -3 dB bandwidth for high-frequency signal processing.
- Low Harmonic Distortion: Delivers differential signals with the lowest harmonic distortion available.
- Internal Feedback: Unique internal feedback feature provides balanced output gain and phase matching, suppressing even order harmonics.
- Easy to Use: As easy to use as an op amp, simplifying differential signal amplification and driving.
- Common-Mode Level-Shifting: Capable of common-mode level-shifting and buffering of the driving signal.
- High-Speed PCB Design Compatibility: Requires attention to good high-speed PCB design practices for optimal performance.
Applications
- Data Acquisition: Ideal for driving differential analog-to-digital converters (ADCs) and other differential input devices.
- High-Speed Signal Processing: Suitable for applications requiring high-frequency signal processing and low distortion.
- Differential Signal Amplification: Used in systems that require single-ended-to-differential or differential-to-differential signal conversion.
Q & A
- What is the primary function of the AD8138ARMZ-REEL?
The AD8138ARMZ-REEL is a differential amplifier that can be used as a single-ended-to-differential amplifier or a differential-to-differential amplifier.
- What is the bandwidth of the AD8138ARMZ-REEL?
The bandwidth of the AD8138ARMZ-REEL is 320 MHz (-3 dB).
- What is the recommended supply voltage for the AD8138ARMZ-REEL?
The recommended supply voltage is ±5 V.
- What is the operating temperature range of the AD8138ARMZ-REEL?
The operating temperature range is -40°C to +85°C.
- How does the AD8138ARMZ-REEL minimize harmonic distortion?
The AD8138ARMZ-REEL uses a unique internal feedback feature that provides balanced output gain and phase matching, suppressing even order harmonics.
- What are the key considerations for PCB design when using the AD8138ARMZ-REEL?
Good high-speed PCB design practices are required, including a solid ground plane, short and direct signal routing, and proper bypassing of power supply pins.
- Can the AD8138ARMZ-REEL be used to drive differential ADCs?
Yes, the AD8138ARMZ-REEL is ideal for driving differential ADCs and other differential input devices.
- What is the quiescent current of the AD8138ARMZ-REEL?
The quiescent current is approximately 10 mA.
- Is the AD8138ARMZ-REEL RoHS compliant?
Yes, the AD8138ARMZ-REEL is RoHS compliant.
- What package types are available for the AD8138ARMZ-REEL?
The AD8138ARMZ-REEL is available in an 8-MSOP package.
