AD538集成电路（IC）的数模转换器（DAC）规格书PDF中文资料

AD538属于集成电路（IC）的数模转换器（DAC）。由亚德诺半导体技术有限公司制造生产的AD538数模转换器（DAC）数模转换器（DAC、D/A、D2A 或 D 转 A）可将数字信号转换为缓冲或无缓冲的模拟电压或电流。DAC 架构是否适合特定应用，要取决于分辨率和采样频率。DAC 通常用于音乐播放器，将数字数据流转换为模拟音频流。它们还用于电视和手机，将数字视频数据转换为模拟视频信号，再连接到屏幕驱动器，以显示单色或彩色图像。

GENERAL DESCRIPTION

The AD538 is a monolithic real-time computational circuit that provides precision analog multiplication, division, and exponentiation. The combination of low input and output offset voltages and excellent linearity results in accurate computation over an unusually wide input dynamic range. Laser wafer trimming makes multiplication and division with errors as low as 0.25 of reading possible, while typical output offsets of 100 μV or less add to the overall off-the-shelf performance level. Real-time analog signal processing is further enhanced by the 400 kHz bandwidth of the device.

FEATURES

VO = VY(VZ/VX)m transfer function

Wide dynamic range (denominator) −1000:1

Simultaneous multiplication and division

Resistor-programmable powers and roots

No external trims required

Low input offsets <100 μV

Low error ±0.25 of reading (100:1 range)

Monolithic construction

Real-time analog multiplication, division and

exponentiation

High accuracy analog division with a wide input dynamic range

On board +2 V or +10 V scaling reference

Voltage and current (summing) input modes

Monolithic construction with lower cost and higher

reliability than hybrid and modular circuits

APPLICATIONS

One- or two-quadrant multiply/divide

Log ratio computation

Squaring/square rooting

Trigonometric function approximations

Linearization via curve fitting

Precision AGC

Power functions