OPA843中文资料宽带、低失真、中增益、电压反馈运算放大器数据手册TI规格书

描述 Description

The OPA843 provides a level of speed and dynamic range previously unattainable in a monolithic op amp. Using a high Gain Bandwidth (GBW), two gain-stage design, the OPA843 gives a medium gain range device with exceptional dynamic range. The \"classic\" differential input complements this high dynamic range with DC precision beyond most high-speed amplifier products. Very low input offset voltage and current, high Common-Mode Rejection Ratio (CMRR) and Power-Supply Rejection Ratio (PSRR), and high open-loop gain combine to give a high DC precision amplifier along with low noise and high 3rd-order intercept.

12- to 16-bit converter interfaces will benefit from this combination of features. High-speed transimpedance applications can be implemented with exceptional DC precision as well. Differential configurations using two OPA843s can deliver very low distortion to high output voltages, as shown below.

特性 Features

• HIGH BANDWIDTH: 260MHz (G = +5)
• GAIN BANDWIDTH PRODUCT: 800MHz
• LOW INPUT VOLTAGE NOISE: 2.0nV/√Hz
• VERY LOW DISTORTION: –96dBc (5MHz)
• HIGH OPEN-LOOP GAIN: 110dB
• FAST 12-BIT SETTLING: 10.5ns (0.01%)
• LOW INPUT OFFSET VOLTAGE: 300µV
• OUTPUT CURRENT: ±100mA
• APPLICATIONS
• ADC/DAC BUFFER AMPLIFIER
• LOW DISTORTION \"IF\" AMPLIFIER
• ACTIVE FILTERS
• LOW-NOISE RECEIVER
• WIDEBAND TRANSIMPEDANCE
• TEST INSTRUMENTATION
• PROFESSIONAL AUDIO
• OPA643 UPGRADE