OPAx191 系列(OPA191、OPA2191 和 OPA4191)是新一代 36V e-trim™ 运算放大器。
这些器件具有卓越的直流精度和交流性能,包括轨到轨输入/输出、低偏移电压(典型值:±5µV)、低偏移漂移(典型值:±0.2µV/°C)和 2MHz 带宽。
OPAx191 具有独特功能,例如电源轨的差分输入电压范围、高输出电流 (±65mA)、高达 1nF 的高容性负载驱动以及高压摆率 (5V/µs),是一款稳定可靠的高性能运算放大器,适用于各种高电压工业应用。
OPAx191 系列运算放大器采用标准封装,在 -40°C 至 +125°C 的额定温度范围内工作。
| Number of channels | 2 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 36 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 4.5 |
| Vos (offset voltage at 25°C) (max) (mV) | 0.025 |
| GBW (typ) (MHz) | 2.5 |
| Features | EMI Hardened, High Cload Drive |
| Slew rate (typ) (V/µs) | 5.5 |
| Rail-to-rail | In, Out |
| Offset drift (typ) (µV/°C) | 0.1 |
| Iq per channel (typ) (mA) | 0.14 |
| Vn at 1 kHz (typ) (nV√Hz) | 15 |
| CMRR (typ) (dB) | 140 |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 125 |
| Input bias current (max) (pA) | 20 |
| Iout (typ) (A) | 0.065 |
| Architecture | CMOS |
| Input common mode headroom (to negative supply) (typ) (V) | -0.1 |
| Input common mode headroom (to positive supply) (typ) (V) | 0.1 |
| Output swing headroom (to negative supply) (typ) (V) | 0.05 |
| Output swing headroom (to positive supply) (typ) (V) | -0.05 |
| THD + N at 1 kHz (typ) (%) | 0.0012 |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |
| VSSOP (DGK) | 8 | 14.7 mm² 3 x 4.9 |