The OPA2830 is a dual, low-power, single-supply, wideband, voltage-feedback amplifier designed to operate on a single +3V or +5V supply. Operation on ±5V or +10V supplies is also supported. The input range extends below ground and to within 1.8V of the positive supply. Using complementary common-emitter outputs provides an output swing to within 25mV of ground and +VS while driving 150
. High output drive current (75mA) and low differential gain and phase errors also make it ideal for single-supply consumer video products.
Low distortion operation is ensured by the high gain bandwidth product (100MHz) and slew rate (500V/µs), making the OPA2830 an ideal input buffer stage to 3V and 5V CMOS Analog-to-Digital Converters (ADCs). Unlike earlier low-power, single-supply amplifiers, distortion performance improves as the signal swing is decreased. A low 9.2nV/
Hz input voltage noise supports wide dynamic range operation.
The OPA2830 is available in an industry-standard SO-8 package. The OPA2830 is also available in a small MSOP-8 package. For fixed-gain and line driver applications, consider the OPA2832.
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| Architecture | Voltage FB |
| Number of channels | 2 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 2.8 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 11 |
| GBW (typ) (MHz) | 110 |
| BW at Acl (MHz) | 250 |
| Acl, min spec gain (V/V) | 1 |
| Slew rate (typ) (V/µs) | 550 |
| Vn at flatband (typ) (nV√Hz) | 9.2 |
| Vn at 1 kHz (typ) (nV√Hz) | 9.5 |
| Iq per channel (typ) (mA) | 4.25 |
| Vos (offset voltage at 25°C) (max) (mV) | 7.5 |
| Rail-to-rail | In to V-, Out |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| CMRR (typ) (dB) | 80 |
| Input bias current (max) (pA) | 10000000 |
| Offset drift (typ) (µV/°C) | 27 |
| Iout (typ) (mA) | 75 |
| 2nd harmonic (dBc) | 66 |
| 3rd harmonic (dBc) | 77 |
| Frequency of harmonic distortion measurement (MHz) | 5 |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |
| VSSOP (DGK) | 8 | 14.7 mm² 3 x 4.9 |