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AD744JR Fiches technique(PDF) 1 Page - Analog Devices |
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AD744JR Fiches technique(HTML) 1 Page - Analog Devices |
1 / 12 page REV. C 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. a AD744 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., 2000 Precision, 500 ns Settling BiFET Op Amp CONNECTION DIAGRAMS TO-99 (H) Package FEATURES AC PERFORMANCE 500 ns Settling to 0.01% for 10 V Step 1.5 s Settling to 0.0025% for 10 V Step 75 V/ s Slew Rate 0.0003% Total Harmonic Distortion (THD) 13 MHz Gain Bandwidth – Internal Compensation >200 MHz Gain Bandwidth (G = 1000) External Decompensation >1000 pF Capacitive Load Drive Capability with 10 V/ s Slew Rate – External Compensation DC PERFORMANCE 0.5 mV max Offset Voltage (AD744B) 10 V/ C max Drift (AD744B) 250 V/mV min Open-Loop Gain (AD744B) Available in Plastic Mini-DIP, Plastic SOIC, Hermetic Cerdip, Hermetic Metal Can Packages and Chip Form Surface Mount (SOIC) Package Available in Tape and Reel in Accordance with EIA-481A Standard APPLICATIONS Output Buffers for 12-Bit, 14-Bit and 16-Bit DACs, ADC Buffers, Cable Drivers, Wideband Preamplifiers and Active Filters PRODUCT DESCRIPTION The AD744 is a fast-settling, precision, FET input, monolithic operational amplifier. It offers the excellent dc characteristics of the AD711 BiFET family with enhanced settling, slew rate, and bandwidth. The AD744 also offers the option of using custom compensation to achieve exceptional capacitive load drive capability. The single-pole response of the AD744 provides fast settling: 500 ns to 0.01%. This feature, combined with its high dc preci- sion, makes it suitable for use as a buffer amplifier for 12-bit, 14-bit or 16-bit DACs and ADCs. Furthermore, the AD744’s low total harmonic distortion (THD) level of 0.0003% and gain band- width product of 13 MHz make it an ideal amplifier for demanding audio applications. It is also an excellent choice for use in active filters in 12-bit, 14-bit and 16-bit data acquisition systems. The AD744 is internally compensated for stable operation as a unity gain inverter or as a noninverting amplifier with a gain of two or greater. External compensation may be applied to the AD744 for stable operation as a unity gain follower. External compensation also allows the AD744 to drive 1000 pF capacitive loads, slewing at 10 V/ µs with full stability. Alternatively, external decompensation may be used to increase the gain bandwidth of the AD744 to over 200 MHz at high gains. This makes the AD744 ideal for use as ac preamps in digital signal processing (DSP) front ends. The AD744 is available in five performance grades. The AD744J and AD744K are rated over the commercial temperature range of 0 °C to +70°C. The AD744A and AD744B are rated over the industrial temperature range of –40 °C to +85°C. The AD744T is rated over the military temperature range of –55 °C to +125°C and is available processed to MIL-STD-883B, Rev. C. The AD744 is available in an 8-lead plastic mini-DIP, 8-lead small outline, 8-lead cerdip or TO-99 metal can. PRODUCT HIGHLIGHTS 1. The AD744 is a high-speed BiFET op amp that offers excel- lent performance at competitive prices. It outperforms the OPA602/OPA606, LF356 and LF400. 2. The AD744 offers exceptional dynamic response. It settles to 0.01% in 500 ns and has a 100% tested minimum slew rate of 50 V/ µs (AD744B). 3. The combination of Analog Devices’ advanced processing technology, laser wafer drift trimming and well-matched ionimplanted JFETs provide outstanding dc precision. Input offset voltage, input bias current, and input offset current are specified in the warmed-up condition; all are 100% tested. 8-Lead Plastic Mini-DIP (N) 8-Lead SOIC (R) Package and 8-Lead Cerdip (Q) Packages |
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