LMH6401

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMH6401 SBOS730A – APRIL 2015 – REVISED MAY 2015 LMH6401 DC to 4.5 GHz, Fully-Differential, Digital Variable-Gain Amplifier 1 Features 1 3-dB Bandwidth: 4.5 GHz at 26-dB Gain Gain Range: –6 dB to 26 dB in 1-dB Steps Differential Input Impedance: 100 Ω Differential Output with Common-Mode Control Distortion at Max Gain (VO = 2 VPPD, RL = 200 Ω): – 200 MHz: HD2 at –73 dBc, HD3 at –80 dBc – 500 MHz: HD2 at –68 dBc, HD3 at –72 dBc – 1 GHz: HD2 at –63 dBc, HD3 at –63 dBc – 2 GHz: HD2 at –58 dBc, HD3 at –54 dBc Output IP3: – 43 dBm at 200 MHz – 33 dBm at 1 GHz – 27 dBm at 2 GHz Output IP2: – 67 dBm at 200 MHz – 60 dBm at 1 GHz – 52 dBm at 2 GHz 8-dB Noise Figure at 1 GHz, RS = 100 Ω 82-ps Rise, Fall Time Pulse Response Supply Operation: 5.0 V at 69 mA Supports Single- and (±) Split-Supply Operation: – DC- and AC-Coupled Applications Fabricated on an Advanced Complementary BiCMOS Process 3-mm × 3-mm UQFN-16 Package 2 Applications Test and Measurement Ultra-Wideband ADC Drivers Communications Receivers RF Sampling Subsystems SAW Filter Buffers and Drivers Defense and Radar 3 Description The LMH6401 is a wideband, digitally-controlled, variable-gain amplifier (DVGA) designed for dc to radio frequency (RF), intermediate frequency (IF), and high-speed time-domain applications. The device is an ideal analog-to-digital converter (ADC) driver for dc- or ac-couple...