Texas Instruments THS4541 高速差动 I/O 放大器
德州仪器 THS4541 高速差动 I/O 放大器是低功耗、电压反馈、全差动放大器，带有低于负轨的输入共模电压和轨到轨输出。被设计用于低功耗数据采集系统，在这些系统的高性能模数转换器或数模转换器接口设计中，高密度非常关键。THS4541 带有连接 dc 耦合、以接地为中点的源信号时所需的负轨输入。凭借这种负轨输入及轨到轨输出，只需使用 +2.7V 到 +5.4V 的单电源，即可轻松实现以地为基准的单端双极信号源和各种 SAR、ΔΣ 或流水线模数转换器间的连接。
特性
- Fully Differential Amplifier (FDA) Architecture
- 500 MHz (G = 2V/V) Bandwidth
- 850MHz Gain Bandwidth Product
- 1500V/µs Slew Rate
- HD2: -95dBc at 10MHz (2VPP, RL = 500Ω)
- HD3: -90dBc at 10MHz (2VPP, RL = 500Ω)
- Input Voltage Noise: 2.2nV/Hz (f > 100kHz)
- Low offset drift: ±0.5µV/°C (typ)
- Negative Rail Input (NRI)
- Rail-to-Rail Output (RRO)
- Robust Operation for Rload ≥ 50Ω
- Output Common-Mode Control
- Power Supply
- Single-Supply Voltage Range: 2.7V to 5.4V
- Split-Supply Voltage Range: ±1.35V to ±2.7V
- Quiescent Current: 10.1mA (5V Supply)
- Power-Down Capability: 2µA (typ)
应用
- Low-Power, High-Performance ADC Driver
- SAR, ΔΣ, and Pipeline
- Low Power, High Performance (DC or AC Coupled)
- Single-Ended to Differential Amplifier
- Differential to Differential Amplifier
- Differential Active Filters
- Differential Transimpedance for DAC Outputs
- DC- or AC-Coupled Interface to the ADC3xxx Family of Low-Power, High-Performance ADCs
- Pin-Compatible Upgrade to ADA4932-1 (RGT)
Datasheets
Functional Block Diagram
Related Product
Texas Instruments OPA856宽带低噪声运算放大器
具有双极输入，适用于宽带跨阻抗和电压放大器应用。
Associated Board
Texas Instruments ADS9219EVM评估模块
配置用于评估ADS9219 SAR ADC的运行和性能。
发布日期: 2014-09-18
| 更新日期: 2024-08-09