ADSL Driver Dual 20-Pin HSOP EP T/R

The THS6182 is a current feedback differential line driver ideal for full rate ADSL systems. Its extremely low-power dissipation is ideal for ADSL systems that must achieve high densities in ADSL central office rack applications. The unique architecture of the THS6182 allows the quiescent current to be much lower than existing line drivers while still achieving high linearity without the need for excess open loop gain. Fixed multiple bias settings of the amplifiers allow for enhanced power savings for line lengths where the full performance of the amplifier is not required. To allow for even more flexibility and power savings, an IADJ pin is available to further lower the bias currents while maintaining stable operation with as little as 1.8 mA per channel. The wide output swing of 44 VPP differentially with ±12-V power supplies allows for more dynamic headroom, keeping distortion at a minimum. With a low 3.2 nV/vHz inverting current noise, the THS6182 increases the sensitivity of the receive signals, allowing for better margins and reach. 

Low-Power Dissipation Increases ADSL Line Card Density

Low THD of -88 dBc (100 O, 1 MHz)

Low MTPR Driving +20 dBm on the Line

• -76 dBc With High Bias Setting
• -74 dBc With Low Bias Setting

Wide Output Swing of 44 V_PP Differential Intoa 200O Differential Load (V_CC = ±12 V)

High Output Current of 600 mA (Typ)

Wide Supply Voltage Range of ±5 V to ±15 V

Pin Compatible with EL1503C and EL1508C

• Multiple Package Options

Multiple Power Control Modes

• 11 mA/ch Full Bias Mode
• 7.5 mA/ch Mid Bias Mode
• 4 mA/ch Low Bias Mode
• 0.25 mA/ch Shutdown Mode
• I_ADJ Pin for User Controlled Bias Current
• Stable Operation Down to 1.8 mA/ch

Low Noise for Increased Receiver Sensitivity

• 3.2 nV/vHz Inverting Current Noise

APPLICATIONS

• Ideal for Full Rate ADSL Applications