THS4541中文资料高速差分 I/O 放大器数据手册TI规格书

描述 Description

The THS4541 is a low-power, voltage-feedback, fully differential amplifier (FDA) with an input common-mode range below the negative rail, and rail-to-rail output. Designed for low-power data acquisition systems where high density is critical in a high-performance analog-to-digital converter (ADC) or digital-to-analog converter (DAC) interface design. The THS4541 features the negative-rail input required when interfacing a dc-coupled, ground-centered, source signal. This negative-rail input, with rail-to-rail output, allows for easy interface between single-ended, ground-referenced, bipolar signal sources and a wide variety of SAR, ΔΣ, or pipeline ADCs using only a single +2.7-V to +5.4-V power supply. The THS4541 is characterized for operation over the wide temperature range of –40°C to 125°C available in 16-pin VQFN and 10-pin WQFN packages.

特性 Features

• Fully Differential Amplifier (FDA) Architecture
• Gain Bandwidth Product: 850 MHz
• HD2: –95 dBc at 10 MHz (2 VPP, RL = 500 Ω)
• Input Voltage Noise: 2.2 nV/Hz (f > 100 kHz)
• Negative Rail Input (NRI)
• Robust Operation for Rload ≥ 50 Ω
• Power Supply:
• Split-Supply Voltage Range: ±1.35 V to ±2.7 V
• Power-Down Capability: 2 µA (typ)