The THS3120 and THS3121 are low-noise, high-voltage, high output current drive, current-feedback amplifiers designed to operate over a wide supply range of ±5 V to ±15 V for today's high-performance applications.
The THS3120 offers a power saving mode by providing a power-down pin for reducing the 7-mA quiescent current of the device, when the device is not active.
These amplifiers provide well-regulated ac performance characteristics. Most notably, the 0.1-dB flat bandwidth is exceedingly high, reaching beyond 90 MHz. The unity-gain bandwidth of 130 MHz allows for good distortion characteristics at 10 MHz. Coupled with high 1700-V/µs slew rate, the THS3120 and THS3121 amplifiers allow for high output voltage swings at high frequencies.
The THS3120 and THS3121 are offered in an SOIC-8 (D) package and an MSOP-8 (DGN) PowerPAD package.
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| Architecture | Current FB |
| Number of channels | 1 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 10 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 30 |
| GBW (typ) (MHz) | 130 |
| BW at Acl (MHz) | 130 |
| Acl, min spec gain (V/V) | 1 |
| Slew rate (typ) (V/µs) | 1500 |
| Vn at flatband (typ) (nV√Hz) | 2.5 |
| Vn at 1 kHz (typ) (nV√Hz) | 2.5 |
| Iq per channel (typ) (mA) | 3.5 |
| Vos (offset voltage at 25°C) (max) (mV) | 10 |
| Rail-to-rail | No |
| Features | Shutdown |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| CMRR (typ) (dB) | 70 |
| Input bias current (max) (pA) | 4000000 |
| Offset drift (typ) (µV/°C) | 10 |
| Iout (typ) (mA) | 475 |
| 2nd harmonic (dBc) | 51 |
| 3rd harmonic (dBc) | 50 |
| Frequency of harmonic distortion measurement (MHz) | 10 |
| HVSSOP (DGN) | 8 | 14.7 mm² 3 x 4.9 |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |
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