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AD843JR-16-REEL7 Datasheet(PDF) 1 Page - Analog Devices |
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AD843JR-16-REEL7 Datasheet(HTML) 1 Page - Analog Devices |
1 / 12 page CONNECTION DIAGRAMS 16-Pin SOIC (R-16) Package Plastic (N-8) and Cerdip (Q-8) Package TO-8 (H-12A) Package LCC (E-20A) Package REV. D 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 34 MHz, CBFET Fast Settling Op Amp AD843 © Analog Devices, Inc., 1995 One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 PRODUCT DESCRIPTION The AD843 is a fast settling, 34 MHz, CBFET input op amp. The AD843 combines the low (0.6 nA) input bias currents characteristic of a FET input amplifier while still providing a 34 MHz bandwidth and a 135 ns settling time (to within 0.01% of final value for a 10 volt step). The AD843 is a member of the Analog Devices’ family of wide bandwidth operational amplifi- ers. These devices are fabricated using Analog Devices’ junction isolated complementary bipolar (CB) process. This process per- mits a combination of dc precision and wideband ac perform- ance previously unobtainable in a monolithic op amp. The 250 V/ µs slew rate and 0.6 nA input bias current of the AD843 ensure excellent performance in high speed sample-and- hold applications and in high speed integrators. This amplifier is also ideally suited for high bandwidth active filters and high fre- quency signal conditioning circuits. Unlike many high frequency amplifiers, the AD843 requires no external compensation and it remains stable over its full operat- ing temperature range. It is available in five performance grades: the AD843J and AD843K are rated over the commercial temperature range of 0 °C to +70°C. The AD843A and AD843B are rated over the industrial temperature range of –40 °C to +85°C. The AD843S is rated over the military temperature range of –55 °C to +125 °C and is available processed to MIL-STD-883B, Rev. C. FEATURES AC PERFORMANCE Unity Gain Bandwidth: 34 MHz Fast Settling: 135 ns to 0.01% Slew Rate: 250 V/ s Stable at Gains of 1 or Greater Full Power Bandwidth: 3.9 MHz DC PERFORMANCE Input Offset Voltage: 1 mV max (AD843K/B} Input Bias Current: 0.6 nA typ Input Voltage Noise: 19 nV/ √Hz Open Loop Gain: 30 V/mV into a 500 Load Output Current: 50 mA min Supply Current: 13 mA max Available in 8-Pin Plastic Mini-DIP & Cerdip, 16-Pin SOIC, 20-Pin LCC and 12-Pin Hermetic Metal Can Packages Available in Tape and Reel in Accordance with EIA-481A Standard Chips and MIL-STD-883B Parts Also Available APPLICATIONS High Speed Sample-and-Hold Amplifiers High Bandwidth Active Filters High Speed Integrators High Frequency Signal Conditioning The AD843 is offered in either 8-pin plastic DIP or hermetic cerdip packages, in 16-pin SOIC, 20-Pin LCC, or in a 12-pin metal can. Chips are also available. PRODUCT HIGHLIGHTS 1. The high slew rate, fast settling time and low input bias cur- rent of the AD843 make it the ideal amplifier for 12-bit D/A and A/D buffers, for high speed sample-and-hold amplifiers and for high speed integrator circuits. The AD843 can re- place many FET input hybrid amplifiers such as the LH0032, LH4104 and OPA600. 2. Fully differential inputs provide outstanding performance in all standard high frequency op amp applications such as sig- nal conditioning and active filters. 3. Laser wafer trimming reduces the input offset voltage to 1 mV max (AD843K and AD843B). 4. Although external offset nulling is unnecessary in many ap- plications, offset null pins are provided. 5. The AD843 does not require external compensation at closed loop gains of 1 or greater. |
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