LT1227 Datasheet | Linear Technology

140MHz Video Current Feedback Amplifier Features s 140MHz Bandwidth: AV = 2, RL = 150Ω s 1100V/µs Slew Rate s Low Cost s 30m A Output Drive Current s 0.01% Differential Gain s 0.01° Differential Phase s High Input Impedance: 14MΩ, 3p F s Wide Supply Range: ±2V to ±15V s Shutdown Mode: IS < 250µA s Low Supply Current: IS = 10m A s Inputs mon Mode to Within 1.5V of Supplies s Outputs Swing Within 0.8V of Supplies U APPLICATIO S s Video Amplifiers s Cable Drivers s RGB Amplifiers s Test Equipment Amplifiers s 50Ω Buffers for Driving Mixers DESCRIPTIO The LT®1227 is a current feedback amplifier with wide bandwidth and excellent video characteristics. The low differential gain and phase, wide bandwidth, and 30m A output drive current make the LT1227 well suited to drive cables in video systems. A shutdown feature switches the device into a high impedance, low current mode, allowing multiple devices to be connected in parallel and selected. Input to output isolation in shutdown is 70d B at 10MHz for input amplitudes up to 10VP-P. The shutdown pin interfaces to open collector or open drain logic and takes only 4µs to enable or disable. The LT1227 es in the industry standard pinout and can upgrade the performance of many older products. For a dual or quad version, see the LT1229/1230 data sheet. The LT1227 is manufactured on Linear Technology’s proprietary plementary bipolar process. , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATIO Video Cable Driver VIN + - RF 1k 75Ω RG 1k VOUT VIN =1 75Ω CABLE VOUT 75Ω 1227 TA01 DIFFERENTIAL PHASE (DEG) DIFFERENTIAL GAIN (%) Differential Gain and Phase vs Supply Voltage 0.20 NTSC POSITE f = 3.58MHz 0.20 0.16 0.12 0.12 0.08 0.04 0 5 ∆φ...