OPA2188 运算放大器采用 TI 专有的自动归零技术,可在时间和温度范围内提供低偏移电压(25µV,最大值)以及近似为零的漂移。这些微型的、高精度、低静态电流放大器提供高输入阻抗和摆幅为电源轨 15mV 之内的轨到轨输出。输入共模范围包括负电源轨。单电源或双电源可在 4V 至 36V(±2V 至 ±18V)范围内使用。
OPA2188 器件采用微型小外形尺寸 (MSOP)-8 和小外形尺寸 (SO)-8 封装。此器件的额定工作温度范围为 ―40°C 至 +105°C。
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| 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 |
| Vos (offset voltage at 25°C) (max) (mV) | 0.025 |
| GBW (typ) (MHz) | 2 |
| Features | EMI Hardened, Zero Drift |
| Slew rate (typ) (V/µs) | 0.8 |
| Rail-to-rail | In to V-, Out |
| Offset drift (typ) (µV/°C) | 0.03 |
| Iq per channel (typ) (mA) | 0.415 |
| Vn at 1 kHz (typ) (nV√Hz) | 8.8 |
| CMRR (typ) (dB) | 134 |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 105 |
| Input bias current (max) (pA) | 850 |
| Iout (typ) (A) | 0.018 |
| Architecture | CMOS |
| Input common mode headroom (to negative supply) (typ) (V) | 0 |
| Input common mode headroom (to positive supply) (typ) (V) | -1.5 |
| Output swing headroom (to negative supply) (typ) (V) | 0.22 |
| Output swing headroom (to positive supply) (typ) (V) | -0.22 |
| THD + N at 1 kHz (typ) (%) | 0.0001 |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |
| VSSOP (DGK) | 8 | 14.7 mm² 3 x 4.9 |