AD9617

a FEATURES Usable Closed-Loop Gain Range: 1 to 40 Low Distortion: –67 dBc (2nd) at 20 MHz Small Signal Bandwidth: 190 MHz (AV = +3) Large Signal Bandwidth: 150 MHz at 4 V p-p Settling Time: 10 ns to 0.1%; 14 ns to 0.02% Overdrive and Output Short Circuit Protected Fast Overdrive Recovery DC Nonlinearity 10 ppm APPLICATIONS Driving Flash Converters D/A Current-to-Voltage Converters IF, Radar Processors Baseband and Video Communications Photodiode, CCD Preamps Low Distortion, Precision, Wide Bandwidth Op Amp AD9617 PIN CONFIGURATION NC 1 –INPUT 2 +INPUT 3 –VS 4 AD9617 8 * 7 +VS 6 OUTPUT 5 ** NC = NO CONNECT *OPTIONAL +VS **OPTIONAL –VS NOTE: FOR BEST SETTLING TIME AND DISTORTION PERFORMANCE, USE OPTIONAL SUPPLY CONNECTIONS. PERFORMANCE INDICATED IN SPECIFICATIONS IS BASED ON SUPPLY CONNECTIONS TO THESE PINS. GENERAL DESCRIPTION The AD9617 is a current feedback amplifier which utilizes a proprietary architecture to produce superior distortion and dc precision. It achieves this along with fast settling, very fast slew rate, wide bandwidth (both small signal and large signal) and exceptional signal fidelity. The device achieves –67 dBc 2nd harmonic distortion at 20 MHz while maintaining 190 MHz small signal and 150 MHz large signal bandwidths. These attributes position the AD9617 as an ideal choice for driving flash ADCs and buffering the latest generation of DACs. Optimized for applications requiring gain between ± 1 to ± 15, the AD9617 is unity gain stable without external compensation. The AD9617 offers outstanding performance in high fidelity, wide bandwidth applications in instrumentation ranging from network and spectrum analyzers to oscilloscopes, and in military systems such as radar, SIGINT and ESM systems. The superior slew rate, low overshoot and fast settling of the AD9617 allow the device to be used in pulse applications such as communications receivers and high speed ATE. Most monolithic op amps suffer in these precision pulse applications due to slew rate limiting. The AD9617J operates over the range of 0°C to +70°C and is available in either an 8-lead plastic DIP or an 8-1ead plastic small outline package (SOIC). R EV. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1999 AD9617–SPECIFICATIONS Supply Voltages (± VS) . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V Common-Mode Input Voltage . . . . . . . . . . . . . . . . . . . . . ± Vs Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 3 V Continuous Output Current2 . . . . . . . . . . . . . . . . . . . . . 70 mA Operating Temperature Ranges AD9617JN/JR . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C Storage Temperature AD9617JN/JR . . . . . . . . . . . . . . . . . . . . . –65°C to +125°C Junction Temperature3 AD9617JN/JR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Lead Soldering Temperature (10 Seconds) . . . . . . . . . +300°C ABSOLUTE MAXIMUM RATINGS 1 NOTES 1 Absolute maximum ratings are limiting values to be applied individually and beyond which the serviceability of the circuit may be impaired. Functional operability is not necessarily implied. Exposure to absolute maximum rating conditions for an extended period of time may affect device reliability. 2 Output is short circuit protected to ground, but not to supplies. Continuous short circuit to ground may affect device reliability. 3 Typical thermal impedances (part soldered onto board): Plastic DIP: θJA = 140 °C/W; θJC = 30 °C/W. SOIC Package: θJA = 155 °C/W; θJC = 40°C/W. DC ELECTRICAL CHARACTERISTICS (Unless otherwise noted, A = +3; V VS = 5 V; RF = 400 ; RLOAD = 100 ) Units Parameter Input Offset Voltage Input Offset Voltage TC 2 Input Bias Current2 Inverting Noninverting Input Bias Current TC2 Noninverting Inverting Input Resistance Noninverting Input Capacitance Noninverting Common-Mode Input Range3 Common-Mode Rejection Ratio 4 Power Supply Rejection Ratio Open Loop Gain TO Nonlinearity Output Voltage Range Output Impedance Output Current (50 Ω Load) 1, 2 Conditions Test Temp Level +25°C I Full IV +25°C I +25°C I Full Full IV IV AD9617JN/JR AD9617AQ/SQ* Min Typ Max Min Typ Max –1.1 –4 –50 –25 –50 –50 +0.5 +2.2 –1.1 +3 +25 –4 0 +5 +30 +50 60 ± 1.4 ± 1.7 44 48 48 1.5 ± 1.5 ± 1.8 48 51 51 ± 1.4 ± 1.7 44 48 48 +50 +35 –50 –25 +0.5 +2.2 +3 +25 0 +5 +30 +50 60 1.5 ± 1.5 ± 1.8 48 51 51 +50 +35 +125 +150 AD9617BQ/TQ* Min Typ Max +0.0 –4 –25 –15 –50 –50 +0.5 +1.35 mV +3 +25 µV/°C 0 +5 +30 +50 60 +25 +20 +125 +150 µA µA nA/°C nA/°C kΩ pF V V dB dB dB kΩ ppm V Ω mA mA +125 –50 +150 –50 +25°C V +25°C ← ← ← ← Full +25°C +25°C +25°C +25°C ← ← V II II II II II V IV II V II II T = TMAX T = TMIN to +25°C T = TMIN to TMAX T = TMIN to +25°C ∆VS = ± 5% At DC At DC At DC T = +25°C to TMAX T = TMIN ± 1.4 ± 1.7 44 48 48 1.5 ± 1.5 ± 1.8 48 51 51 500 10 +3.8 0.07 500 10 ± 3.4 ± 3.8 0.07 60 50 500 10 ± 3.4 ± 3.8 0.07 60 50 ± 3.4 60 50 NOTES *Pending obsoletion: last-time buy October 25, 1999. 1 Measured with respect to the inverting input. 2 Typical is defined as the mean of the distribution. 3 Measured in voltage follower configuration. 4 Measured with V IN = +0.25 V. Specifications subject to change without notice. – 2– REV. B AD9617 AC ELECTRICAL CHARACTERISTICS Parameter FREQUENCY DOMAIN Bandwidth (–3 dB) Small Signal Large Signal Bandwidth Variation vs. AV Amplitude of Peaking (50 MHz) T = TMIN to +25°C T = TMAX Amplitude of Roll-Off (