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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Parametrics Compare all products in High-speed op amps (GBW>=50MHz)

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)
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 THS6212
Current FB
DSL Line Driver    
Current FB
DSL Line Driver    
1     1    
11.4     10    
12.6     28    
1100     150    
8.5     10    
10600     3800    
3.5     2.7    
44.8     21    
No     No    
Shutdown     Shutdown    
Catalog     Catalog    
-40 to 85     -40 to 85    
QFN | 16     VQFN | 24    
16QFN: 16 mm2: 4 x 4 (QFN | 16)     24VQFN: 20 mm2: 4 x 5 (VQFN | 24)    
1100     150    
85     417    
97     100    
100     89    
1     1