Description

The AD8138ARZ-REEL7 is an Integrated Circuit (IC) chip used in differential signal processing. It simplifies differential signal amplification and driving and can be used as a single-ended-to-differential amplifier or differential-to-differential amplifier. The AD8138ARZ-REEL7 has a bandwidth of 320 MHz, adjustable output common-mode voltage, externally adjustable gain, and low harmonic distortion, making it easy to use and of high quality. It has a unique internal feedback feature that provides balanced output gain and phase matching, suppressing even-order harmonics, and minimizing gain error associated with external gain setting resistors. The AD8138ARZ-REEL7 is available in 8-Lead SOIC and MSOP packages.

Specifications and features

• Operational as single-ended-to-differential and differential-to-differential amplifier
• Bandwidth of 320 MHz, G = +1
• Low harmonic distortion with −94 dBc SFDR at 5 MHz, and −85 dBc SFDR at 20 MHz
• Adjustable output common-mode voltage and externally adjustable gain up to ±5 V
• Fast settling to 0.01% of 16 ns and slew rate of 1150 V/µs
• Low input voltage noise of 5 nV/√Hz and offset voltage of 1 mV typical
• Fast overdrive recovery of 4 ns with low power consumption of 90 mW on 5 V
• 0.1 dB gain flatness to 40 MHz
• Manufactured on a bipolar process, utilizing Advanced Digital Integration (XFCB) technology

Application Scenarios

The AD8138ARZ-REEL7 is used in the following:

• Analog-to-digital converter (ADC) drivers
• Single-ended-to-differential converters
• Intermediate frequency and baseband gain blocks
• Differential buffers
• Line drivers

Comparison

• Easy to use as an op-amp with high-quality differential signal amplification and driving
• Low harmonic distortion, matching balanced output gain and phase for even-order harmonics suppression
• Adjustable gain and output common-mode voltage
• Fast settling and overdrive recovery with low input voltage noise and offset voltage
• High slew rate, wide bandwidth with low power consumption

• Only available in 8-Lead SOIC and MSOP packages
• High duty factor, non-linear distortion at higher gain values