Product Details
●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 amplifiers. These devices are fabricated using Analog Devices" junction isolated complementary bipolar (CB) process. This process permits a combination of dc precision and wideband ac performance 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 frequency signal conditioning circuits.
●Unlike many high frequency amplifiers, the AD843 requires no external compensation and it remains stable over its full operating 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 and Benefits
● Unity Gain Bandwidth: 34 MHz
● Fast Settling: 135 ns to 0.01%
● Slew Rate: 250 V/µs
● Input Offset Voltage: 1 mV max (AD843K/B)
● Input Bias Current: 0.6 nA typ
● Input Voltage Noise: 19 nV/vHz
● Open Loop Gain: 30 V/mV into a 500 Ω 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
● Chips and MIL-STD-883B Parts Also Available
