Packaging information
| Package | Pins SOT-23 (DBV) | 5 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the OPA328
- Precision with zero-crossover distortion:
- Low offset voltage: 50µV (maximum)
- High CMRR: 120dB
- Rail-to-rail I/O
- Wide bandwidth: 40MHz
- Low input bias current: 1pA (maximum)
- Low noise: 6.1nV/√Hz at 10kHz
- Slew rate: 30V/µs
- Fast 0.01% settling time: 180ns
- Single-supply voltage range: 2.2V to 5.5V
- Unity-gain stable
Description for the OPA328
The single-channel OPA328, dual-channel OPA2328 and quad-channel OPA4328 (OPAx328) are a new generation family of precision, low-voltage CMOS operational amplifiers optimized for very low noise and wide bandwidth.
The OPAx328 have a linear input stage with zero-crossover distortion that delivers excellent common-mode rejection ratio (CMRR) of 120dB (typical) over the full input range. The input common-mode voltage range extends 100mV beyond the negative and positive supply rails. The output voltage typically swings within 10mV of the rails.
The OPAx328 also use Texas Instrument’s proprietary e‑trim™ operational amplifier technology, enabling a unique combination of ultra-low offset and low input offset drift without the need for any input switching or auto-zero techniques.
Low-noise (6.1nV/√Hz) and high-speed operation (40MHz, 30V/µs) make these devices a great choice for driving sampling analog-to-digital converters (ADCs).
The OPAx328 are also a great choice for high-impedance-input, single-supply applications. Low input bias current and low input capacitance allows for high-frequency transimpedance gains at low photocurrent operation (< 1nA).