The OPA2670 provides the high output current and low distortion required in emerging xDSL and Power Line Modem driver applications. Operating on a single +12V supply, the OPA2670 consumes a low 30.5mA quiescent current to deliver a very high 700mA output current. This output current supports even the most demanding xDSL requirements with greater than 450mA minimum output current (+25°C minimum value) with low harmonic distortion. Differential driver applications deliver less than –71dBc distortion at the peak upstream power levels of full-rate ADSL. The high 320MHz bandwidth also supports the most demanding VDSL2 line driver requirements.
Power control features are included to allow system power to be minimized. Two logic control lines allow four quiescent power settings, including full power, 66% power, 33% power, and shutdown.
PowerPAD Is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
| Number of channels | 1 |
| Architecture | Current FB, DSL Line Driver, PLC Line Driver |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 5.5 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 12.6 |
| BW at Acl (MHz) | 420 |
| Acl, min spec gain (V/V) | 1 |
| Vn at flatband (typ) (nV√Hz) | 3.6 |
| Vn at 1 kHz (typ) (nV√Hz) | 6 |
| Iq per channel (typ) (mA) | 30.5 |
| Vos (offset voltage at 25°C) (max) (mV) | 6 |
| Rail-to-rail | No |
| Features | Adjustable BW/IQ/IOUT, Shutdown |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| CMRR (typ) (dB) | 56 |
| Input bias current (max) (pA) | 24000000 |
| Offset drift (typ) (µV/°C) | 8 |
| GBW (typ) (MHz) | 1400 |
| Iout (typ) (mA) | 700 |
| 2nd harmonic (dBc) | 71 |
| 3rd harmonic (dBc) | 80 |
| Frequency of harmonic distortion measurement (MHz) | 10 |
| VQFN (RGV) | 16 | 16 mm² 4 x 4 |
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