THS4541 是一款低功耗、电压反馈、完全差分放大器 (FDA),输入共模范围低于负轨和轨到轨输出。 其设计用于低功耗数据采集系统,其中高密度对于高性能 ADC 或 DAC 接口设计至关重要。
THS4541 提供了连接直流耦合地居中源信号所需的负轨输入。 此负轨输入搭配轨到轨输出,只需使用一个 +2.7V 到 +5.4V 的电源即可轻松将单端接地基准双极信号源与各种逐次逼近寄存器 (SAR)、Δ-Σ 或流水线 ADC 相连接。
THS4541 的额定运行温度介于 –40°C 与 125°C 之间,并且采用 16 引脚超薄四方扁平无引线 (VQFN) 封装和 10 引脚超薄四方扁平无引线 (WQFN) 封装。
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| Number of channels | 1 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 2.7 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 5.4 |
| BW at Acl (MHz) | 620 |
| Acl, min spec gain (V/V) | 1 |
| Slew rate (typ) (V/µs) | 1500 |
| Architecture | Bipolar, Fully Differential ADC Driver |
| Vn at flatband (typ) (nV√Hz) | 2.2 |
| Iq per channel (typ) (mA) | 10.1 |
| Rail-to-rail | In to V-, Out |
| Vos (offset voltage at 25°C) (max) (mV) | 0.45 |
| Operating temperature range (°C) | -40 to 125 |
| Iout (typ) (mA) | 100 |
| 2nd harmonic (dBc) | 140 |
| 3rd harmonic (dBc) | 140 |
| Frequency of harmonic distortion measurement (MHz) | 0.1 |
| GBW (typ) (MHz) | 850 |
| Input bias current (max) (pA) | 13000000 |
| Features | Decompensated, Shutdown |
| CMRR (typ) (dB) | 100 |
| Rating | Catalog |
| VQFN (RGT) | 16 | 9 mm² 3 x 3 |
| WQFN (RUN) | 10 | 4 mm² 2 x 2 |