The LM7171 is a high speed voltage feedback amplifier that has the slewing characteristic of a current feedback amplifier, yet it can be used in all traditional voltage feedback amplifier configurations. The LM7171 is stable for gains as low as +2 or −1. It provides a very high slew rate at 4100V/µs and a wide unity-gain bandwidth of 200 MHz while consuming only 6.5 mA of supply current. It is ideal for video and high speed signal processing applications such as HDSL and pulse amplifiers. With 100 mA output current, the LM7171 can be used for video distribution, as a transformer driver or as a laser diode driver.
Operation on ±15 V power supplies allows for large signal swings and provides greater dynamic range and signal-to-noise ratio. The LM7171 offers low SFDR and THD, ideal for ADC/DAC systems. In addition, the LM7171 is specified for ±5 V operation for portable applications.
The LM7171 is built on TI's advanced VIP III (Vertically integrated PNP) complementary bipolar process.
| Architecture | Voltage FB |
| Number of channels | 1 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 5.5 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 36 |
| GBW (typ) (MHz) | 200 |
| BW at Acl (MHz) | 220 |
| Acl, min spec gain (V/V) | 2 |
| Slew rate (typ) (V/µs) | 4100 |
| Vn at flatband (typ) (nV√Hz) | 14 |
| Vn at 1 kHz (typ) (nV√Hz) | 14 |
| Iq per channel (typ) (mA) | 6.5 |
| Vos (offset voltage at 25°C) (max) (mV) | 1 |
| Rail-to-rail | No |
| Features | Decompensated |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| CMRR (typ) (dB) | 105 |
| Input bias current (max) (pA) | 10000000 |
| Offset drift (typ) (µV/°C) | 35 |
| Iout (typ) (mA) | 100 |
| 2nd harmonic (dBc) | 75 |
| 3rd harmonic (dBc) | 55 |
| Frequency of harmonic distortion measurement (MHz) | 5 |
| PDIP (P) | 8 | 92.5083 mm² 9.81 x 9.43 |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |
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