LMH6714/6720/6722 is a high performance video op amp from National. It provides 400MHz bandwidth and 1800V/µs slew rate with only 5.6mA power consumption. This product series is ideal for broadcast quality video systems. Its small size, low power, low noise and distortion also make it suitable for portable RF applications.
The LMH6714/6720/6722 wideband video op‑amps combine National Semiconductor's VIP10™ high‑speed complementary bipolar process with a current‑feedback topology. They deliver a 400 MHz small‑signal bandwidth at a gain of +2 V/V, a 1800 V/µs slew rate, and only 5.6 mA supply current from a +5 V supply. Features include 0.01 % differential gain error, 0.01° phase error, and a shutdown pin with low‑current operation.
These devices are offered in small SOIC, SOT‑23, and 14‑pin SOIC packages, making them suitable for broadcast‑quality video systems, portable RF applications, high‑speed multiplexing, and programmable‑gain amplifiers. Typical applications are HDTV, NTSC/PAL video, video switching, active filters, cable drivers, and high‑speed multiplexers.
| Bandwidth (−3 dB) | 400 MHz (LMH6714) / 250 MHz (LMH6720) |
|---|---|
| Gain Flatness | 0.1 dB to 120 MHz |
| Slew Rate | 1800 V/µs |
| Supply Current | 5.6 mA from +5 V |
| Continuous Output Current | 70 mA |
| Differential Gain Error | 0.01 % (LMH6714) |
| Shutdown Pin Voltage (OFFMAX) | 0.8 V |
| Turn‑On Voltage (ONMIN) | 2.0 V |
| Shutdown Current | 500 µA (LMH6720) |
| Turn‑On Time | 11 ns (LMH6720) |
| Turn‑Off Time | 7 ns (LMH6720) |
The LMH6714 provides a 400 MHz −3 dB bandwidth, while the LMH6720 offers a 250 MHz −3 dB bandwidth.
They consume 5.6 mA from a +5 V supply.
The shutdown pin operates between 0 V and VCC; the OFFMAX voltage is 0.8 V and the ONMIN turn‑on voltage is 2.0 V.
The devices can deliver up to 70 mA of continuous output current.