OPA681N/250

OPA681N/250 FEATURES

(cid:1) WIDEBAND +5V OPERATION: 225MHz (G = +2)(cid:1) UNITY GAIN STABLE: 280MHz (G = 1)(cid:1) HIGH OUTPUT CURRENT: 150mA(cid:1) OUTPUT VOLTAGE SWING: ±4.0V(cid:1) HIGH SLEW RATE: 2100V/µs(cid:1) LOW dG/dφ: .001% /.01°(cid:1) LOW SUPPLY CURRENT: 6mA(cid:1) LOW DISABLED CURRENT: 320µA

OPA681N/250 DESCRIPTION

The OPA681 sets a new level of performance for broadbandcurrent feedback op amps. Operating on a very low 6mAsupply current, the OPA681 offers a slew rate and outputpower normally associated with a much higher supply cur-rent. A new output stage architecture delivers a high outputcurrent with minimal voltage headroom and crossoverdistortion. This gives exceptional single-supply operation.Using a single +5V supply, the OPA681 can deliver a 1V to4V output swing with over 100mA drive current and 150MHzbandwidth. This combination of features makes the OPA681an ideal RGB line driver or single-supply ADC input driver.The OPA681’s low 6mA supply current is precisely trimmedat 25°C. This trim, along with low drift over temperature,

OPA681N/250 APPLICATIONS

xDSL LINE DRIVER(cid:1) BROADBAND VIDEO BUFFERS(cid:1) HIGH SPEED IMAGING CHANNELS(cid:1) PORTABLE INSTRUMENTS(cid:1) ADC BUFFERS(cid:1) ACTIVE FILTERS(cid:1) WIDEBAND INVERTING SUMMING(cid:1) HIGH SFDR IF AMPLIFIERguarantees lower guaranteed maximum supply current thancompeting products. System power may be further reduced byusing the optional disable control pin. Leaving this disable pinopen, or holding it high, gives normal operation. If pulled low,the OPA681 supply current drops to less than 320µA while theoutput goes into a high impedance state. This feature may beused for either power savings or for video MUX applications.OPA681 RELATED PRODUCTS200MHz RF Summing Amplifier