Texas Instruments LMH5401 全差分放大器
德州仪器 LMH5401 全差分放大器是一款针对射频 (RF)、中频 (IF) 或高速时域应用进行了优化的高性能差分放大器。此器件非常适合在驱动模数转换器 (ADC) 时可能需要进行单端到差分(SE-DE)转换的直流耦合或交流耦合应用。在单端输入转差分输出、或差分输入转差分输出模式下工作时,LMH5401 产生非常低的二阶和三阶失真。放大器经优化适用于 SE-DE 和 DE-DE 系统。该器件在噪声增益 ≥ 2V/V 或 6dB 的条件下仍可保持稳定,并且可提供前所未有的从直流到 2GHz 的可用带宽范围。LMH5401 可应用于各类应用(例如测试和测量、宽带通信和高速数据采集)中信号链的 SE-DE 转换,无需使用外部平衡-非平衡变压器。特性
- Gain Bandwidth Product (GBP): 8GHz
- Excellent Linearity Performance: DC to 2GHz, G = 12dB
- Slew Rate: 17,500V/µs
- Low HD2, HD3 Distortion (1VPP, 200Ω, DE-DE, G = 12dB)
- 100MHz: HD2 at -104dBc, HD3 at -96dBc
- 200MHz: HD2 at -95dBc, HD3 at -92dBc
- 500MHz: HD2 at -80dBc, HD3 at -77dBc
- 1GHz: HD2 at -64dBc, HD3 at -58dBc
- Low IMD2, IMD3 Distortion (2VPP, 200Ω, DE-DE, G = 12dB)
- 200MHz: IMD2 at -96dBc, IMD3 at -95dBc
- 500MHz: IMD2 at -80dBc, IMD3 at -83dBc
- 1GHz: IMD2 at -70dBc, IMD3 at -63dBc
- Input Voltage Noise: 1.25nV/√Hz
- Input Current Noise: 3.5pA/√Hz
- Supports Single- and Dual-Supply Operation
- Power Consumption: 55mA
- Power-Down Feature
应用
- GSPS ADC Drivers
- ADC Drivers for High-Speed Data Acquisition
- ADC Drivers for 1GBPS Ethernet over Microwave
- DAC Buffers
- IF, RF, and Baseband Gain Blocks
- SAW Filter Buffers and Drivers
- Balun Replacement DC to 2GHz
- Level Shifters
Functional Block Diagram
Related Development Tool
发布日期: 2014-11-12
| 更新日期: 2024-09-17
