THS4520

超低功耗，轨到轨输出，全差动放大器 Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier

The is a wideband, fully differential operational amplifier designed for 5-V data acquisition systems. It has very low noise at 2 nV/ load. The slew rate is 570 V/µs, and with a settling time of 7 ns to 0.1% 2-V step, it is ideal for data acquisition applications. It is designed for unity gain stability.

To allow for dc coupling to ADCs, its unique output common-mode control circuit maintains the output common-mode voltage within 0.25 mV offset typical from the set voltage. The common-mode set point defaults to mid-supply by internal circuitry, which may be over-driven from an external source.

The input and output are optimized for best performance with their common-mode voltages set to mid-supply. Along with high performance at low power supply voltage, this makes for extremely high performance single supply 5-V and 3.3-V data acquisition systems.

The THS4520 is offered in a Quad 16-pin leadless QFN package RGT, and is characterized for operation over the full industrial temperature range from –40°C to 85°C.

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Fully Differential Architecture With Rail-to-Rail Outputs

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Centered Input Common-mode Range

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Minimum Gain of 1 V/V 0 dB

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Bandwidth: 620 MHz

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Slew Rate: 570 V/µs

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0.1% Settling Time: 7 ns

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HD2: –115 dBc at 100 kHz, VOD = 8 VPP

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HD3: –123 dBc at 100 kHz, VOD = 8 VPP

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Input Voltage Noise: 2 nV/Hz f >10 kHz

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Output Common-Mode Control

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Power Supply:

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Voltage: 3.3 V ±1.65 V to 5 V ±2.5 V

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Current: 14.2 mA

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Power-Down Capability: 15 µA

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APPLICA ONS

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5-V and 3.3-V Data Acquisition Systems

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High Linearity ADC Amplifier

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Wireless Communication

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Test and Measurement

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Voice Processing Systems