OPA140A 运算放大器是一款特有合理范围内的漂移和低输入偏置电流的低功耗 JFET 输入放大器。 包括 V 在内的轨到轨输出摆幅和输入范围 -- 这使得设计人员能够利用 JFET 放大器的低噪声特性而同时又可接口连接至最新的、单电源、精度模数转换器 (ADCs) 和数模转换器 (DACs)。 OPA140A 运行在4.5 V 至
36 V 的单电源或者 ±2.25-V 至 ±18-V 的双电源上。
| Number of channels | 1 |
| 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) | 0.12 |
| GBW (typ) (MHz) | 11 |
| Slew rate (typ) (V/µs) | 20 |
| Rail-to-rail | In to V-, Out |
| Offset drift (typ) (µV/°C) | 0.35 |
| Iq per channel (typ) (mA) | 1.8 |
| Vn at 1 kHz (typ) (nV√Hz) | 5.1 |
| CMRR (typ) (dB) | 140 |
| Rating | Catalog |
| Operating temperature range (°C) | to |
| Input bias current (max) (pA) | 10 |
| Iout (typ) (A) | 0.03 |
| Architecture | FET |
| Input common mode headroom (to negative supply) (typ) (V) | -0.1 |
| Input common mode headroom (to positive supply) (typ) (V) | -3.5 |
| Output swing headroom (to negative supply) (typ) (V) | 0.2 |
| Output swing headroom (to positive supply) (typ) (V) | -0.2 |
| THD + N at 1 kHz (typ) (%) | 0.00005 |
| DIESALE (TD) | — | See data sheet |
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