LT1189

LT1189 Low Power Video Difference Amplifier FEATURES s s s s s s s s s s s DESCRIPTIO Differential or Single-Ended Gain Block (Adjustable) –3dB Bandwidth, AV = ± 10 35MHz Slew Rate 220V/µs Low Supply Current 13mA Output Current ± 20mA CMRR at 10MHz 48dB LT1193 Pin Out Low Cost Single 5V Operation Drives Cables Directly Output Shutdown The LT1189 is a difference amplifier optimized for operation on ± 5V, or a single 5V supply, and gain ≥ 10. 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 LT1189’s high slew rate, 220V/µs, wide bandwidth, 35MHz, 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 LT1189 is a low power, gain of 10 stable version of the popular LT1193, and is available in 8-pin miniDIPs and SO packages. For lower gain applications see the LT1187 data sheet. APPLICATI s s s s S Line Receivers Video Signal Processing Cable Drivers Tape and Disc Drive Systems TYPICAL APPLICATI Cable Sense Amplifier for Loop Through Connections with DC Adjust VIN 5V 3 CABLE VDC 2 1 8 – LT1189 + – 4 –5V 909Ω Closed-Loop Gain vs Frequency 50 VS = ±5V RL = 1k 40 VOLTAGE GAIN (dB) + 7 6 VOUT 30 20 10 100Ω 0 0.1 LT1189 TA01 U 1 ...