Low Power Video Difference Amplifier

The LT1187 is a difference amplifier optimized for operation on ±5V, or a single 5V supply and gain ≥2. This versatile amplifier features uncommitted high input impedance (+) and (–) inputs, and can be used in differential or single-ended configurations. Additionally, a second set of inputs give gain adjustment and DC control to the difference amplifier.

The LT1187’s high slew rate, 165V/μs, wide bandwidth, 50MHz, and ±20mA output current require only 13mA of supply current. The shutdown feature reduces the power dissipation to a mere 15mW and allows multiple amplifiers to drive the same cable.

The LT1187 is a low power version of the popular LT1193, and is available in 8-pin miniDIPs and SO packages. For applications with gains of 10 or more, see the LT1189 data sheet.

Applications

* Line Receivers

* Video Signal Processing

* Cable Drivers

* Tape and Disc Drive Systems

* Differential or Single-Ended Gain Block (Adjustable) * –3dB Bandwidth, AV = ±2: 50MHz * Slew Rate: 165V/µs * Low Supply Current: 13mA * Output Current: ±20mA * CMRR at 10MHz: 40dB * LT1193 Pin Compatible * Low Cost * Single 5V Operation * Drives Cables Directly * Output Shutdown * Available in 8-Lead PDIP and SO Packages