Professional audio preamplifiers IR, CCD, and sonar imaging systems Spectrum analyzers Ultrasound preamplifiers Seismic detectors Σ-Δ ADC/DAC buffers
The AD797 is a very low noise, low distortion operational amplifier ideal for use as a preamplifier. The low noise of 0.9 nV(root)Hz and low total harmonic distortion of -120 dB at audio bandwidths give the AD797 the wide dynamic range necessary for preamps in microphones and mixing consoles.
Furthermore, the AD797's excellent slew rate of 20 V/µs and 110 MHz gain bandwidth make it highly suitable for low frequency ultrasound applications.
The AD797 is also useful in IR and Sonar Imaging applications where the widest dynamic range is necessary. The low distortion and 16-bit settling time of the AD797 make it ideal for buffering the inputs to Sigma Delta ADCs or the outputs of high resolution DACs especially when they are used in critical applications such as seismic detection and spectrum analyzers. Key features such as a 50 mA output current drive and the specified power supply voltage range of ±5 to ±15 volts make the AD797 an excellent general purpose amplifier.
Applications
Features and Benefits
| AmplifiersAD797 SPICE Macro-Model |
| Document | note |
| AD797: Ultralow Distortion, Ultralow Noise Op Amp Data Sheet (Rev. K) | PDF 514 kB |
| Document | note |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| AD797ANZ Production | 8 ld PDIP | OTH 50 | -40 to 85C | 5.28 | 4.75 | Y |
| AD797AR Production | 8 ld SOIC | OTH 98 | -40 to 85C | 5.99 | 5.4 | N |
| AD797AR-REEL7 Production | 8 ld SOIC | REEL 750 | -40 to 85C | 5.99 | 5.4 | N |
| AD797ARZ Production | 8 ld SOIC | OTH 98 | -40 to 85C | 5.18 | 4.67 | Y |
| AD797ARZ-REEL Production | 8 ld SOIC | REEL 2500 | -40 to 85C | 0 | 4.67 | Y |
| AD797ARZ-REEL7 Production | 8 ld SOIC | REEL 750 | -40 to 85C | 5.18 | 4.67 | Y |
| AD797BR Production | 8 ld SOIC | OTH 98 | -40 to 85C | 8.15 | 7.33 | N |
| AD797BRZ Production | 8 ld SOIC | OTH 98 | -40 to 85C | 7.04 | 6.35 | Y |
| AD797BRZ-REEL Production | 8 ld SOIC | REEL 2500 | -40 to 85C | 0 | 6.35 | Y |
| AD797BRZ-REEL7 Production | 8 ld SOIC | REEL 750 | -40 to 85C | 7.04 | 6.35 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| ADZS-SC589-EZBRD | Evaluation Board | 435 | Y |
| ADZS-SC589-EZLITE | EZ-BRD with ICE-1000 and 2x 180 Day CCES License | 495 | Y |
| EVAL-PRAOPAMP-1KSZ | Single KS-5 lead SC70 Evaluation Board | 20.19 | Y |
| EVAL-PRAOPAMP-1RJZ | Single RJ-5 lead SOT23 Evaluation Board | 20.19 | Y |
| EVAL-PRAOPAMP-1RMZ | Single RM-8 lead MSOP Evaluation Board | 20.19 | Y |
| EVAL-PRAOPAMP-1RZ | Single R-8 lead SOIC Evaluation Board | 20.19 | Y |
