AD7707集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

AD7707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AD7707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 AD7707 is a complete analog front end for low frequency measurement applications. This three-channel device can accept either low level input signals directly from a transducer or high level (±10 V) signals and produce a serial digital output. It employs a sigma-delta conversion technique to realize up to

16 bits of no missing codes performance. The selected input signal is applied to a proprietary programmable gain front end based around an analog modulator. The modulator output is processed by an on-chip digital filter. The first notch of this digital filter can be programmed via an on-chip control register allowing adjustment of the filter cutoff and output update rate.

FEATURES

Charge Balancing ADC

16 Bits No Missing Codes

0.003 Nonlinearity

High Level (610 V) and Low Level (610 mV) Input Channels

True Bipolar 6100 mV Capability on Low Level Input Channels Without Requiring Charge Pumps

Programmable Gain Front End Gains from 1 to 128

Three-Wire Serial Interface

SPI™, QSPI™, MICROWIRE™ and DSP Compatible

Schmitt Trigger Input on SCLK

Ability to Buffer the Analog Input

2.7 V to 3.3 V or 4.75 V to 5.25 V Operation

Power Dissipation 1 mW max @ 3␣ V

Standby Current 8 mA max

20-Lead SOIC and TSSOP Packages