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 | AmplifiersAD843 SPICE Macro-Model |
| Document | note |
| AD843: 34 MHz, CBFET Fast Settling Op Amp Data Sheet (Rev. D) AD843: Military Data Sheet (Rev C, 03/2003) | PDF 454 kB |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| 5962-9098001M2A Production | LCC:CER LEADLESS CHIP CARR | OTH 54 | -55 to 125C | 101.07 | 91.37 | N |
| 5962-9098001MPA Production | 8 ld CerDIP | OTH 48 | -55 to 125C | 54.71 | 49.46 | N |
| AD843AQ Production | 14 ld CerDIP | OTH 48 | -40 to 85C | 10.84 | 9.23 | N |
| AD843BQ Production | 8 ld CerDIP | OTH 48 | -40 to 85C | 12.69 | 10.76 | N |
| AD843JCHIPS Production | CHIPS OR DIE | REEL 130 | 0 to 70C | 0 | 6.73 | Y |
| AD843JN Production | 8 ld PDIP | OTH 50 | 0 to 70C | 6.7 | 5.69 | N |
| AD843JNZ Production | 8 ld PDIP | OTH 50 | 0 to 70C | 6.11 | 5.18 | Y |
| AD843JRZ-16 Production | 16 ld SOIC - Wide | OTH 47 | 0 to 70C | 6.1 | 5.19 | Y |
| AD843JRZ-16-REEL Production | 16 ld SOIC - Wide | REEL 1000 | 0 to 70C | 0 | 5.19 | Y |
| AD843JRZ-16-REEL7 Production | 16 ld SOIC - Wide | REEL 250 | 0 to 70C | 0 | 5.19 | Y |
| AD843KNZ Production | 8 ld PDIP | OTH 50 | 0 to 70C | 6.94 | 5.9 | Y |
| AD843SCHIPS Production | CHIPS OR DIE | REEL 100 | -55 to 125C | 31 | 28.18 | Y |
| AD843SQ Production | 8 ld CerDIP | OTH 48 | -55 to 125C | 29.1 | 27.63 | N |
| AD843SQ/883B Production | 8 ld CerDIP | OTH 48 | -55 to 125C | 49.74 | 44.76 | N |
