LMH6555 Low Distortion 1.2 GHz Differential Driver | TI.com

LMH6555 (ACTIVE) Low Distortion 1.2 GHz Differential Driver

 

Recommended alternative parts

  • LMH6550  -  Lower Power, Lower BW (400 MHz)
  • LMH6551  -  Lower Power, Lower BW Version (370 MHz)
  • LMH6552  -  Lower Power, Adjustable Gain Version (1.5 GHz)

Description

The LMH6555 is an ultra high speed differential line driver with 53 dB SFDR at 750 MHz. The LMH6555 features a fixed gain of 13.7 dB. An input to the device allows the output common mode voltage to be set independent of the input common mode voltage in order to simplify the interface to high speed differential input ADCs. A unique architecture allows the device to operate as a fully differential driver or as a single-ended to differential converter.

The outstanding linearity and drive capability (100Ω differential load) of this device are a perfect match for driving high speed analog-to-digital converters. When combined with the ADC081000/ ADC081500 (single or dual ADC), the LMH6555 forms an excellent 8-bit data acquisition system with analog bandwidths exceeding 750 MHz.

The LMH6555 is offered in a space saving 16-pin WQFN package.

Features

  • Typical Values unless Otherwise Specified.
  • −3 dB Bandwidth (VOUT = 0.80 VPP) 1.2 GHz
  • ±0.5 dB Gain Flatness (VOUT = 0.80 VPP) 330 MHz
  • Slew Rate 1300 V/μs
  • 2nd/3rd Harmonics (750 MHz) −53/−54 dBc
  • Fixed Gain 13.7 dB
  • Supply Current 120 mA
  • Single Supply Operation 3.3V ±10%
  • Adjustable Common-Mode Output Voltage

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Parametrics

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Part number Order 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) Iq per channel (Typ) (mA) Rail-to-rail Vos (offset voltage @ 25 C) (Max) (mV) Operating temperature range (C) Package Group 2nd harmonic (dBc) 3rd harmonic (dBc) Package size: mm2:W x L (PKG) GBW (Typ) (MHz) Input bias current (Max) (pA) @ MHz CMRR (Typ) (dB)
LMH6555 Order now 1     3     3.6     1200     4.8     3000     3.9     120     No     50     -40 to 85     WQFN | 16     53     54     16WQFN: 16 mm2: 4 x 4 (WQFN | 16)     1200     100000000     750     68