THS6301 Single-Channel, G.Fast 106MHz, 212MHz DSL Line Driver Amplifier |


Single-Channel, G.Fast 106MHz, 212MHz DSL Line Driver Amplifier



The THS6301 is a single-channel, current-feedback architecture, differential line driver that enables G.Fast and different digital subscriber line (DSL) home gateway systems. The device enables
106-MHz and 212-MHz G.Fast digital subscriber line profiles that use native discrete multitone modulation (DMT) signals. The THS6301 functions with high linearity at an 8-dBm line power through 212 MHz.

The unique architecture of this device minimizes quiescent current while providing very high linearity. Internally-fixed bias settings of the amplifier provide power savings for line-driving modes where the full performance of the amplifier is not needed. For further flexibility and power savings, the overall quiescent current is adjustable by a single external bias resistor connected to one of the device pins. The device also features two line-termination modes to maintain impedance matching at very low power consumption.

The device can also be used as a fixed-gain differential amplifier with bandwidth and power-scaling to suit the needs of differential applications.

The device is available in a 4-mm × 4-mm, 16-pin, VQFN package.


  • Enables G.Fast 106-MHz, 212-MHz DSL Applications
  • Supports Legacy VDSL and ADSL2+ Applications
  • High MTPR for G.Fast and Legacy Applications (Line Power = 8 dBm):
    • ADSL2+ = 69 dB
    • VDSL-17a = 73 dB
    • VDSL-30a = 69 dB
    • G.Fast 106 MHz = 62 dB
    • G.Fast 212 MHz = 55 dB
  • Multiple Power Modes for Different Profiles
  • Adjustable Bias Current With External Resistor
  • Low-Power Line Termination Mode: 10.2 mA
  • Power-Down Mode
  • 12-V Technology to Support High-Power Output

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Part number Order Architecture Number of channels (#) Total supply voltage (Min) (+5V=5, +/-5V=10) Total supply voltage (Max) (+5V=5, +/-5V=10) BW @ Acl (MHz) Acl, min spec gain (V/V) Slew rate (Typ) (V/us) Vn at flatband (Typ) (nV/rtHz) Vn at 1 kHz (Typ) (nV/rtHz) Iq per channel (Typ) (mA) Vos (offset voltage @ 25 C) (Max) (mV) Rail-to-rail Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) CMRR (Typ) (dB) Input bias current (Max) (pA) Offset drift (Typ) (uV/C) GBW (Typ) (MHz) Output current (Typ) (mA) 2nd harmonic (dBc) 3rd harmonic (dBc) @ MHz
THS6301 Order now Current FB
DSL Line Driver    
1     11.4     12.6     1100     8.5     10600     3.5       44.8       No     Shutdown     Catalog     -40 to 85     QFN | 16     16QFN: 16 mm2: 4 x 4 (QFN | 16)           1100     85     97     100     1    
THS6212 Order now Current FB
DSL Line Driver    
1     10     28     150     10     3800     2.7     9     21     50     No     Shutdown     Catalog     -40 to 85     VQFN | 24     24VQFN: 20 mm2: 4 x 5 (VQFN | 24)     65     3500000     155     150     417     100     89     1