AD9630

a FEATURES Excellent Gain Accuracy: 0.99 V/V Wide Bandwidth: 750 MHz Slew Rate: 1200 V/ ␮s Low Distortion –65 dBc @ 20 MHz –80 dBc @ 4.3 MHz Settling Time 5 ns to 0.1% 8 ns to 0.02% Low Noise: 2.4 nV/ √ Hz Improved Source for CLC-110 APPLICATIONS IF/Communications Impedance Transformations Drives Flash ADCs Line Driving Low Distortion 750 MHz Closed-Loop Buffer Amp AD9630* PIN CONFIGURATION +VS 1 ** 2 NC 3 INPUT 4 8 OUTPUT 7 NC 6 *** AD9630 5 –VS NC = NO CONNECT **OPTIONAL +VS ***OPTIONAL –VS NOTE: FOR BEST SETTLING TIME PERFORMANCE USE OPTIONAL POWER SUPPLIES. ALL SPECIFICATIONS ARE BASED ON USING SINGLE ؎VS CONNECTIONS, EXCEPT FOR SETTLING TIME TO 0.02% AND SMALL SIGNAL S21. CONSULT THE FACTORY FOR VERSIONS WITH OPTIONAL POWER SUPPLY PINS DISCONNECTED INTERNAL TO THE PACKAGE. GENERAL DESCRIPTION The AD9630 is a monolithic buffer amplifier that utilizes a patented, innovative, closed-loop design technique to achieve exceptional gain accuracy, wide bandwidth, and low distortion. Slew rate limiting has been overcome as indicated by the 1200 V/µs slew rate; this improvement allows the user greater flexibility in wideband and pulse applications. The second harmonic distortion terms for an analog input tone of 4.3 MHz and 20 MHz are –80 dBc and –66 dBc, respectively. Clearly, the AD9630 establishes a new standard by combining outstanding dc and dynamic performance in one part. The large signal bandwidth, low distortion over frequency, and drive capabilities of the AD9630 ...