The OPA333A series of CMOS operational amplifiers uses a proprietary auto-calibration technique to simultaneously provide very low offset voltage (10 µV max) and near-zero drift over time and temperature. These miniature, high-precision, low-quiescent-current amplifiers offer high-impedance inputs that have a common-mode range 100 mV beyond the rails, and rail-to-rail output that swings within 50 mV of the rails. Single or dual supplies as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V) may be used. They are optimized for low-voltage single-supply operation.
The OPA333A family offers excellent common-mode rejection ratio (CMRR) without the crossover associated with traditional complementary input stages. This design results in superior performance for driving analog-to-digital converters (ADCs) without degradation of differential linearity.
The OPA333A (single version) is available in the SC70-5 and SOT23-5 packages. The OPA2333A (dual version) is offered in the SO-8 package. All versions are specified for operation from -55°C to 125°C.
(1)Custom temperature ranges available
| Status | ACTIVE |
| Number of channels | 2 |
| Total Supply Voltage | 1.8 |
| Vos (offset voltage @ 25 C) | 0.01 |
| GBW | 0.35 |
| Slew Rate | 0.16 |
| Rail-to-rail | In^Out |
| Offset drift | 0.02 |
| Iq per channel | 0.017 |
| Vn at 1 kHz | 65 |
| CMRR | 130 |
| Rating | HiRel Enhanced Product |
| Operating temperature range | -55 to 125 |
| Package Group | SOIC|8 |
| Approx. price | 5.00 | 1ku |
| Package size: mm2:W x L (PKG) | [pf]8SOIC[/pf]: 29 mm2: 6 x 4.9 (SOIC|8) |
| Input bias current | 200 |
| Output current | 5 |
| Features | EMI Hardened^Zero Drift |
| Architecture | CMOS |
| Input common mode headroom (to negative supply) | -0.1 |
| Input common mode headroom (to positive supply) | 0.1 |
| Output swing headroom (to negative supply) | 0.03 |
| Output swing headroom (to positive supply) | -0.03 |