描述 Description

The THS6232 is a differential line-driver amplifier with current-feedback architecture, and provides high output current with low distortion performance. The device is targeted for use in broadband, high-speed, power-line communications (HPLC) line-driver applications that require high linearity when driving heavy line loads.

The unique architecture of the THS6232 uses minimal quiescent current while achieving very high linearity. The amplifier has an adjustable current pin (IADJ) that sets the nominal current consumption, along with the multiple bias modes that allow for enhanced power savings where the full performance of the amplifier is not required. Shutdown bias mode provides further power savings during receive mode in time division multiplexed (TDM) systems while maintaining high output impedance. The integrated midsupply common-mode buffer eliminates external components, reducing system cost and board space.

The wide output swing of 21VPP (100Ω load) with 12V power supplies, coupled with over 550mA of current drive, allows for wide dynamic range with minimal distortion.

The THS6232 is available in 24-pin VQFN package with exposed thermal pad, and is specified for operation from –40°C to +125°C.

特性 Features

Supply range (VS): 7V to 40V

Small-signal bandwidth: 75MHz (VO = 2VPP, G = 5)

Adjustable power modes:

Full-bias mode: 25mA

Mid-bias mode: 19.5mA

Low-bias mode: 15mA

Ultra-low-bias mode: 10mA

Low-power-shutdown mode

IADJ pin for variable bias



SGCC HPLC out-of-band suppression: >30dBc

Band0: 49dBc

Band1: 61dBc

Band2: 64dBc

Band3: 65dBc



High output current: 800mA (VS = 40V, 1Ω load)

Low distortion (VS = 12V, 50Ω load):

HD2 (at 1MHz): –88dBc

HD3 (at 1MHz): –99dBc



Wide output swing (VS = 12V):

21VPP (100Ω load), 19VPP (50Ω load)



Integrated midsupply common-mode buffer

Integrated overtemperature protection

Pin-compatible with THS6212 and THS6222 in 24?pin VQFN