AD7762集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

AD7762属于集成电路（IC）的模数转换器（ADC）。由亚德诺半导体技术有限公司制造生产的AD7762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。

GENERAL DESCRIPTION

The AD7762 is a high performance, 24-bit Σ-Δ analog-to digital converter (ADC). It combines wide input bandwidth and high speed with the benefits of Σ-Δ conversion with a performance of 106 dB SNR at 625 kSPS, making it ideal for high speed data acquisition. Wide dynamic range combined with significantly reduced antialiasing requirements simplify the design process. An integrated buffer to drive the reference, a differential amplifier for signal buffering and level shifting, an overrange flag, internal gain and offset registers, and a low-pass digital FIR filter make the AD7762 a compact, highly integrated data acquisition device requiring minimal peripheral component selection. In addition, the device offers programmable decimation rates, and the digital FIR filter can be adjusted if the default characteristics are not appropriate to the application. The AD7762 is ideal for applications demanding high SNR without a complex front end signal processing design.

FEATURES

120 dB dynamic range at 78 kHz output data rate

109 dB dynamic range at 625 kHz output data rate

112 dB SNR at 78 kHz output data rate

106 dB SNR at 625 kHz output data rate

625 kHz maximum fully filtered output word rate

Programmable over-sampling rate (32× to 256×)

Fully differential modulator input

On-chip differential amplifier for signal buffering

Low-pass finite impulse response (FIR) filter with default or user-programmable coefficients

Overrange alert bit

Digital offset and gain correction registers

Filter bypass modes

Low power and power-down modes

Synchronization of multiple devices via SYNC pin

APPLICATIONS

Data acquisition systems

Vibration analysis

Instrumentation