The AD811 is ideal as an ADC or DAC buffer in data acquisition systems due to its low distortion up to 10 MHz and its wide unity gain bandwidth. Because the AD811 is a current feedback amplifier, this bandwidth can be maintained over a wide range of gains. The AD811 also offers low voltage and current noise of 1.9nV/√Hz and 20 pA/√Hz, respectively, and excellent dc accuracy for wide dynamic range applications.
A wideband current feedback operational amplifier, the AD811 is optimized for broadcast-quality video systems. The -3 dB bandwidth of 120 MHz at a gain of +2 and differential gain and phase of 0.01% and 0.01° (RL = 150 W) make the AD811 an excellent choice for all video systems. The AD811 is designed to meet a stringent 0.1 dB gain flatness specification to a bandwidth of 35 MHz (G = +2) in addition to the low differential gain and phase errors. This performance is achieved whether driving one or two back terminated 75 W cables, with a low power supply current of 16.5 mA. Furthermore, the AD811 is specified over a power supply range of ±4.5 V to ±18 V.
The AD811 is also excellent for pulsed applications where transient response is crititcal. It can achieve a maximum slew rate of greater than 2500 V/µs with a settling time of less than 25 ns to 0.1% on a 2 V step and 65 ns to 0.01% on a 10 V step.
The AD811 is ideal as an ADC or DAC buffer in data acquisition systems due to its low distortion up to 10 MHz and its wide unity gain bandwidth. Because the AD811 is a current feedback amplifier, this bandwidth can be maintained over a wide range of gains. The AD811 also offers low voltage and current noise of 1.9nV/√Hz and 20 pA/√Hz, respectively, and excellent dc accuracy for wide dynamic range applications.
Features and Benefits140 MHz bandwidth (3 dB, G = +1) 120 MHz bandwidth (3 dB, G = +2) 35 MHz bandwidth (0.1 dB, G = + 2) 2500 V/µs slew rate 25 ns settling time to 0.1% (for a 2 V step) 65 ns settling time to 0.01% (for a 10 V step) 3 mV max input offfset voltage 0.01% differential gain, 0.01° differential phase Voltage noise of 1.9 nV/√Hz Specified for ±5 V and ±15 V operation ±2.3 V output swing into a 75 Ω Load (VS = ±5 V) | AmplifiersSPICE Models |
| Document | note |
| AD811: High Performance Video Op Amp Data Sheet (Rev. G) | PDF 552 kB |
| AD811: Military Data Sheet |
| Document | note |
| UG-755: 8-Lead SOIC Amplifier Evaluation Board User Guide | PDF 276 K |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| 5962-9313101M2A Production | LCC:CER LEADLESS CHIP CARR | OTH 54 | -55 to 125C | 43.59 | 39.4 | N |
| 5962-9313101MPA Production | 8 ld CerDIP | OTH 48 | -55 to 125C | 21.79 | 19.69 | N |
| AD811ACHIPS Production | CHIPS OR DIE | REEL 100 | 25C | 0 | 8.07 | Y |
| AD811ANZ Production | 8 ld PDIP | OTH 50 | -40 to 85C | 4.28 | 3.85 | Y |
| AD811AR-16 Production | 16 ld SOIC - Wide | OTH 47 | -40 to 85C | 5.34 | 4.82 | N |
| AD811ARZ-16 Production | 16 ld SOIC - Wide | OTH 47 | -40 to 85C | 4.61 | 4.18 | Y |
| AD811ARZ-16-REEL Production | 16 ld SOIC - Wide | REEL 1000 | -40 to 85C | 0 | 4.18 | Y |
| AD811ARZ-16-REEL7 Production | 16 ld SOIC - Wide | REEL 250 | -40 to 85C | 0 | 4.18 | Y |
| AD811JRZ Production | 8 ld SOIC | OTH 98 | 0 to 70C | 4.2 | 3.78 | Y |
| AD811JRZ-REEL7 Production | 8 ld SOIC | REEL 1000 | 0 to 70C | 0 | 3.78 | Y |
| AD811SCHIPS Production | CHIPS OR DIE | REEL 100 | 25C | 20.09 | 18.26 | Y |
| AD811SE/883B Production | 20 ld LCC | OTH 54 | -55 to 125C | 43.59 | 39.4 | N |
| AD811SQ/883B Production | 8 ld CerDIP | OTH 48 | -55 to 125C | 21.79 | 19.69 | N |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EVAL-HSOPAMP-1CPZ | Evaluation Board for 8-LD LFCSP | 18.25 | Y |
| EVAL-HSOPAMP-1KSZ | Evaluation Bare Board for 5 and 6-lead SC70 Package | 18.25 | Y |
| EVAL-HSOPAMP-1RJZ | Evaluation Bare Board for SOT-23 Package | 18.25 | Y |
| EVAL-HSOPAMP-1RZ | Evaluation Bare Board for 8-lead SOIC Package | 18.25 | Y |
| EVAL-HSOPAMP-E-1RZ | Evaluation Bare Board for 8 Lead SOIC dedicated feedback with epad connection | 18.25 | Y |
| EVAL-HSOPAMP-N-1RZ | Evaluation Bare Board for 8 Lead SOIC w/Null or Compensation functionality on Pins 1 and or 8 | 18.25 | Y |
