The LMH6704 is a high-performance, high-dynamic-range video amplifier from National Semiconductor that provides +1, +2, and -1 V/V user-programmable gain. With a 650 MHz small-signal bandwidth (AV = +1), full power gain flatness to 200 MHz, and excellent differential gain and phase, the LMH6704 is optimized for video applications. The LMH6704 is fabricated using National Semiconductor's proprietary high-speed complementary bipolar process and employs National Semiconductor's proven current feedback circuit architectures. It is available in 8-pin SOIC and 6-pin SOT23 packages.
The LMH6704 is a very wideband, DC coupled programmable gain buffer designed for wide dynamic range systems requiring exceptional signal fidelity. It features on-chip feedback and gain set resistors, simplifying PCB layout while providing user programmable gains of +1, +2, and -1 V/V. The device includes a disable pin that places the amplifier in a high output impedance, low power mode.
| Small Signal Bandwidth (Ay = +1) | 650 MHz |
|---|---|
| Small Signal Bandwidth (Ay = +2) | 450 MHz |
| Small Signal Bandwidth (Ay = -1) | 400 MHz |
| Gain Bandwidth | 200 MHz |
| Slew Rate | 3000 V/us |
| Differential Gain | 0.02% |
| Differential Phase | 0.02 deg |
| Supply Current (Enabled) | 11.5 mA |
| Supply Current (Disabled) | 0.9 mA |
The maximum junction temperature is 150°C.
The maximum supply voltage is 13.5V.
The device operates from -40°C to 85°C.