INA126 和 INA2126 (INAx126) 是用于精确、低噪声、差分信号采集的精密仪表放大器。这些器件均采用双运算放大器设计,具有低静态电流(175µA/通道),可提供出色的瞬态性能。由于这些特性再加上 ±1.35V 至 ±18V 的宽工作电压范围,因此 INAx126 非常适合便携式仪表和数据采集系统。
可通过单个外部电阻器在 5V/V 到 10000V/V 范围内设置增益。精密输入电路提供低失调电压(250µV,最大值)、低失调电压漂移(3µV/°C,最大值)和出色的共模抑制。
所有版本的额定工作温度范围均为 –40°C 至 +85°C 工业温度范围。
| Number of channels | 1 |
| Vs (max) (V) | 36 |
| Vs (min) (V) | 2.7 |
| Input offset (±) (max) (µV) | 250 |
| Voltage gain (min) (V/V) | 5 |
| Voltage gain (max) (V/V) | 10000 |
| Noise at 1 kHz (typ) (nV√Hz) | 35 |
| Features | Low power |
| CMRR (min) (dB) | 83 |
| Input offset drift (±) (max) (V/°C) | 0.000003 |
| Input bias current (±) (max) (nA) | 25 |
| Iq (typ) (mA) | 0.175 |
| Bandwidth at min gain (typ) (MHz) | 0.2 |
| Gain error (±) (max) (%) | 0.5 |
| Operating temperature range (°C) | -55 to 125 |
| Rating | Catalog |
| Type | Resistor |
| Gain nonlinearity (±) (max) (%) | 0.012 |
| Output swing headroom (to negative supply) (typ) (V) | 0.8 |
| Output swing headroom (to positive supply) (typ) (V) | -0.75 |
| Input common mode headroom (to negative supply) (typ) (V) | 3.5 |
| Input common mode headroom (to positive supply) (typ) (V) | -3.5 |
| Noise at 0.1 Hz to 10 Hz (typ) (µVPP) | 0.7 |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |
| VSSOP (DGK) | 8 | 14.7 mm² 3 x 4.9 |