LMH6554 2.8 GHz Ultra Linear Fully Differential Amplifier | TI.com

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2.8 GHz Ultra Linear Fully Differential Amplifier



The LMH6554 device is a high-performance fully differential amplifier designed to provide the exceptional signal fidelity and wide large-signal bandwidth necessary for driving 8- to 16-bit high-speed data acquisition systems. Using TI’s proprietary differential current mode input stage architecture, the LMH6554 has unity gain, small-signal bandwidth of 2.8 GHz and allows operation at gains greater than unity without sacrificing response flatness, bandwidth, harmonic distortion, or output noise performance.

The low-impedance differential output of the device is designed to drive ADC inputs and any intermediate filter stage. The LMH6554 delivers 16-bit linearity up to 75 MHz when driving 2-V peak-to-peak into loads as low as 200 Ω.

The LMH6554 is fabricated in TI’s advanced complementary BiCMOS process and is available in a space-saving 14-lead UQFN package for higher performance.


  • Small-Signal Bandwidth 2.8 GHz
  • 2 VPP Large-Signal Bandwidth 1.8 GHz
  • 0.1 dB Gain Flatness 830 MHz
  • OIP3 at 150 MHz 46.5 dBm
  • HD2/HD3 at 75 MHz –96 / –97 dBc
  • Input Noise Voltage 0.9 nV/√Hz
  • Input Noise Current 11 pA/√Hz
  • Slew Rate 6200 V/µs
  • Power 260 mW
  • Typical Supply Current 52 mA
  • 14-Lead UQFN Package


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Part number Order 2nd harmonic (dBc) 3rd harmonic (dBc) @ MHz Acl, min spec gain (V/V) Approx. price (US$) Architecture BW @ Acl (MHz) Device type Features GBW (Typ) (MHz) Number of channels (#) Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Slew rate (Typ) (V/us) Total supply voltage (Min) (+5V=5, +/-5V=10) Total supply voltage (Max) (+5V=5, +/-5V=10) Vn at flatband (Typ) (nV/rtHz) Vn at 1 kHz (Typ) (nV/rtHz) Vos (offset voltage @ 25 C) (Max) (mV)
LMH6554 Order now 68     70     250     1     3.40 | 1ku     Fully Differential ADC Driver     2800     RF FDA     Shutdown     2500     1     -40 to 125     UQFN | 14     14UQFN: 6 mm2: 2.5 x 2.5 (UQFN | 14)     6200     4.7     5.25     0.9     0.9     3