CS5451A集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

CS5451A属于集成电路（IC）的模数转换器（ADC）。由凌云逻辑制造生产的CS5451A模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。

Description

The CS5451A is a highly integrated delta-sigma (ΔΣ)an alog-to-digital converter (ADC) developed for the power

measurement industry. The CS5451A combines six ΔΣ ADCs, decimation filters, and a serial interface on a single chip. The CS5451A interfaces directly to a current transformer or shunt to measure current, and to a resistive divider or transformer to measure voltage. The product features a serial interface for communication with a microcontroller or DSP.The product is initialized and fully functional upon reset, and includes a voltage reference.

Features

• Synchronous Sampling

• On-chip 1.2 V Reference (25 ppm/°C typ.)

• Power Supply Configurations:

- VA+ = +3 V; VA- = -2 V; VD+ = +3 V

- Supply Tolerances: ±10

• Power Consumption

- 23 mW Typical at VD+ = +3 V

• Simple Four-wire Serial Interface

• Charge pump driveroutput generates negative power supply.

• Ground-referenced Bipolar Inputs