• Part: LMH6718
  • Description: Dual / High Output / Programmable Gain Buffer
  • Manufacturer: National Semiconductor
  • Size: 846.85 KB
Download LMH6718 Datasheet PDF
National Semiconductor
LMH6718
LMH6718 is Dual / High Output / Programmable Gain Buffer manufactured by National Semiconductor.
Description The LMH6718 is a dual, low cost high speed (130MHz) buffer which features user programmable gains of +2, +1, and -1V/V. The LMH6718 also has a new output stage that delivers high output drive current (200m A), but consumes minimal quiescent supply current (2.6m A/Amp) from a ± 5V supply. Its current feedback architecture, fabricated in an advanced plementary bipolar process, maintains consistent performance over a wide range of signal levels, and has a linear phase response up to one half of the -3d B frequency. The LMH6718 offers 0.1d B gain flatness to 30MHz and differential gain and phase errors of .04% and .03˚. These features are ideal for professional and consumer video applications. The LMH6718 offers superior dynamic performance with a 130MHz small-signal bandwidth, 600V/µs slew rate and 4.2ns rise/fall times (2VSTEP). The bination of low quiescent current, high output current drive, and high speed performance makes the LMH6718 well suited for many battery powered personal munication/puting systems. The ability to drive low impedance, high capacitive loads, makes the LMH6718 ideal for single ended cable applications. It also drives low impedance loads with minimum distortion. The LMH6718 will drive a 100Ω load with only - 84/- 84d Bc second/third harmonic distortion (AV = +2, VOUT = 2VPP, f = 1MHz). It is also optimized for driving high currents into single-ended transformers and coils. When driving the input of high resolution A/D converters, the LMH6718 provides excellent -88/-98d Bc second/third harmonic distortion (AV = +2, VOUT = 2VPP, f = 1MHz, RL = 1kΩ) and fast settling time. The LMH6718 is fabricated using National’s VIP10™ plimentary bipolar process. Features n n n n n n n n n 200m A output current .04%, .03˚ differential gain, phase 5.2m A supply current for 2 amplifiers 130MHz bandwidth (AV = +2) - 88/- 98d Bc HD2/HD3 (1MHz) 16ns settling to 0.05% 600V/µs slew rate Nominal supply range ± 2.5V to ± 6V Improved replacement for CLC5632 Applications...