LMH6505 Datasheet | Texas Instruments

.ti. SNOSAT4E - DECEMBER 2005 - REVISED APRIL 2013 LMH6505 Wideband, Low Power, Linear-in-d B, Variable Gain Amplifier Check for Samples: LMH6505 Features - 2 VS = ±5V, TA = 25°C, RF = 1 kΩ, RG = 100Ω, RL = 100Ω, AV = AVMAX = 9.4 V/V, Typical Values Unless Specified. - - 3 d B BW 150 MHz - Gain Control BW 100 MHz - Adjustment Range (<10 MHz) 80 d B - Gain Matching (Limit) ±0.50 d B - Supply Voltage Range 7V to 12V - Slew Rate (Inverting) 1500 V/μs - Supply Current (No Load) 11 m A - Linear Output Current ±60 m A - Output Voltage Swing ±2.4V - Input Noise Voltage 4.4 n V/√Hz - Input Noise Current 2.6 p A/√Hz - THD (20 MHz, RL = 100Ω, VO = 2 VPP) - 45 d Bc APPLICATIONS - Variable Attenuator - AGC - Voltage Controlled Filter - Video Imaging Processing DESCRIPTION The LMH6505 is a wideband DC coupled voltage controlled gain stage followed by a high speed current feedback operational amplifier which can directly drive a low impedance load. The gain adjustment range is 80 d B for up to 10 MHz which is acplished by varying the gain control input voltage, VG. Maximum gain is set by external ponents, and the gain can be reduced all the way to cutoff. Power consumption is 110 m W with a speed of 150 MHz and a gain control bandwidth (BW) of 100 MHz. Output referred DC offset voltage is less than 55 m V over the entire gain control voltage range. Device-todevice gain matching is within ±0.5 d B at maximum gain. Furthermore, gain is tested and ensured over a wide range. The output current feedback op amp allows high frequency large signals (Slew Rate = 1500 V/μs) and can also drive a heavy load current (60 m A) ensured. Near ideal input characteristics (i.e. low input bias current, low offset, low pin 3 resistance) enable the device to be easily configured as an inverting amplifier as...