AD8131AR

Product Summary

The AD8131AR is a differential or single-ended input to differential output driver requiring no external components for a fixed gain of 2. The AD8131AR is a major advancement over op amps for driving signals over long lines or for driving differential input ADCs. The AD8131AR has a unique internal feedback feature that provides output gain and phase matching that are balanced to–60 dB at 10 MHz, reducing radiated EMI and suppressing harmonics. Manufactured on ADI next generation XFCB bipolar process, the AD8131AR has a –3 dB bandwidth of 400 MHz and delivers a differential signal with very low harmonic distortion. The AD8131AR is a differential driver for the transmission of high-speed signals over low-cost twisted pair or coax cables. The AD8131AR can be used for either analog or digital video signals or for other high-speed data transmission. The AD8131AR driver is capable of driving either Cat3 or Cat5 twisted pair or coax with minimal line attenuation. The AD8131AR has considerable cost and performance improvements over discrete line driver solutions. The AD8131AR can replace transformers in a variety of applications preserving low frequency and dc information. The AD8131AR does not have the susceptibility to magnetic interference and hysteresis of transformers, while being smaller in size, easier to work with, and has the high reliability associated with ICs. The AD8131AR can be applied in video line driver, digital line driver, low power differential adc driver, differential in/out level shifting, and single-ended input to differential output driver.

Parametrics

AD8131AR absolute maximum ratings: (1)Supply Voltage: ±5.5 V; (2)VOCM: ±VS; (3)Internal Power Dissipation2: 250 mW; (4)Operating Temperature Range: –40°C to +85°C; (5)Storage Temperature Range: –65°C to +150°C; (6)Lead Temperature (Soldering 10 sec): 300°C.

Features

AD8131AR features: (1)high speed; (2)fixed gain of 2 with no external components; (3)internal common-mode feedback to improve gain and phase balance; (4)separate input to set the common-mode output voltage; (5)low distortion; (6)low power 7.5 mA @ 3 V; (7)power supply range +2.7 V to 65 V.

Diagrams