Overview
The AD8138ARM-REEL, manufactured by Analog Devices Inc., is a low distortion differential ADC driver. This component is designed to simplify differential signal amplification and driving, offering significant improvements over traditional op amps for differential signal processing. It can function as either a single-ended-to-differential amplifier or a differential-to-differential amplifier. The AD8138ARM-REEL is built on Analog Devices' proprietary XFCB bipolar process, ensuring high performance and low harmonic distortion.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Category | Integrated Circuits (ICs) - Linear - Amplifiers - Special Purpose |
| Package | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Type | ADC Driver |
| Bandwidth | 320 MHz |
| Common Mode Rejection Ratio | 70 dB |
| Gain Bandwidth Product | 320 MHz |
| Input Bias Current | 7 µA |
| Operating Temperature Range | −40°C to +85°C |
| Supply Voltage | 5.5V/11V |
Key Features
- Low harmonic distortion, making it ideal for driving high-resolution ADCs.
- Internal feedback feature for balanced output gain and phase matching, suppressing even order harmonics.
- Adjustable common-mode level of the differential output via the VOCM pin.
- Fast overload recovery to preserve sampling accuracy.
- High bandwidth and IP3, suitable for use as a gain block in IF and baseband signal chains.
- No need for a transformer, preserving low frequency and DC information.
Applications
- Data Acquisition: The AD8138ARM-REEL is well-suited for various data acquisition applications due to its high performance and low distortion.
- Communication Systems: Ideal for driving state-of-the-art 10-bit to 16-bit converters at high frequencies.
- IF and Baseband Signal Chains: Suitable as a gain block due to its high bandwidth and IP3.
- Single-Supply ADCs: The adjustable common-mode level feature makes it easy to level-shift input signals for driving single-supply ADCs.
Q & A
- What is the primary function of the AD8138ARM-REEL?
The AD8138ARM-REEL is a low distortion differential ADC driver, used for differential signal amplification and driving.
- What are the key advantages of the AD8138ARM-REEL over traditional op amps?
The AD8138ARM-REEL offers low harmonic distortion, balanced output gain and phase matching, and high bandwidth, making it superior for differential signal processing.
- What is the bandwidth of the AD8138ARM-REEL?
The bandwidth of the AD8138ARM-REEL is 320 MHz.
- What is the common mode rejection ratio (CMRR) of the AD8138ARM-REEL?
The CMRR of the AD8138ARM-REEL is 70 dB.
- What are the typical applications of the AD8138ARM-REEL?
The AD8138ARM-REEL is used in data acquisition, communication systems, IF and baseband signal chains, and single-supply ADCs.
- How does the AD8138ARM-REEL handle common-mode level adjustment?
The common-mode level of the differential output is adjustable via the VOCM pin.
- What is the operating temperature range of the AD8138ARM-REEL?
The operating temperature range is −40°C to +85°C.
- What package types are available for the AD8138ARM-REEL?
The AD8138ARM-REEL is available in 8-TSSOP and 8-MSOP packages.
- How does the AD8138ARM-REEL handle overload recovery?
The AD8138ARM-REEL features fast overload recovery to preserve sampling accuracy.
- What supply voltages can the AD8138ARM-REEL operate with?
The AD8138ARM-REEL can operate with supply voltages of 5.5V or 11V.
