Overview
The AD8138ARZ-RL, produced by Analog Devices Inc., is a low distortion differential ADC driver that significantly enhances differential signal processing. It is designed to operate as either a single-ended-to-differential or differential-to-differential amplifier, offering ease of use similar to an op-amp while simplifying differential signal amplification and driving. Manufactured using Analog Devices' proprietary XFCB bipolar process, this component boasts a −3 dB bandwidth of 320 MHz and delivers differential signals with the lowest harmonic distortion available in its class.
Key Specifications
| Parameter | Value |
|---|---|
| Bandwidth (−3 dB) | 320 MHz |
| Package Types | 8-Lead MSOP, 8-Lead SOIC |
| Operating Temperature Range | −40°C to +85°C |
| Harmonic Distortion | Lowest available in a differential amplifier |
| Common-Mode Level Adjustment | VOCM pin adjustable |
| Overload Recovery | Fast recovery to preserve sampling accuracy |
Key Features
- Unique internal feedback feature for balanced output gain and phase matching, suppressing even order harmonics.
- Minimizes gain error associated with external gain setting resistor mismatches.
- Adjustable common-mode level via the VOCM pin for level-shifting input signals.
- Fast overload recovery to maintain sampling accuracy.
- Available in both SOIC and MSOP packages.
Applications
The AD8138ARZ-RL is ideal for various applications, including:
- Driving high-performance ADCs in communication systems, supporting 10-bit to 16-bit converters at high frequencies.
- Serving as a gain block in IF and baseband signal chains due to its high bandwidth and IP3.
- Signal processing and data acquisition applications requiring low distortion and high dynamic performance.
- Defense and aerospace applications, with the AD8138-EP version supporting AQEC requirements.
Q & A
- What is the primary function of the AD8138ARZ-RL?
The AD8138ARZ-RL is a low distortion differential ADC driver that can operate as either a single-ended-to-differential or differential-to-differential amplifier. - What is the bandwidth of the AD8138ARZ-RL?
The bandwidth is 320 MHz at −3 dB. - In what packages is the AD8138ARZ-RL available?
It is available in 8-Lead MSOP and 8-Lead SOIC packages. - What is the operating temperature range of the AD8138ARZ-RL?
The operating temperature range is −40°C to +85°C. - How does the AD8138ARZ-RL adjust common-mode levels?
The common-mode level is adjustable via the VOCM pin. - What makes the AD8138ARZ-RL suitable for high-performance ADCs?
Its low harmonic distortion and fast overload recovery make it suitable for driving high-performance ADCs. - Can the AD8138ARZ-RL be used in defense and aerospace applications?
Yes, the AD8138-EP version supports defense and aerospace applications with AQEC requirements. - How does the internal feedback feature of the AD8138ARZ-RL benefit its performance?
The internal feedback feature provides balanced output gain and phase matching, suppressing even order harmonics and minimizing gain errors. - What are some typical applications of the AD8138ARZ-RL?
Typical applications include driving high-performance ADCs, serving as a gain block in IF and baseband signal chains, and signal processing and data acquisition. - How does the AD8138ARZ-RL handle overload conditions?
The AD8138ARZ-RL has fast overload recovery to preserve sampling accuracy.
