ADS774HIDWR兼容微处理器的采样CMS模数转换器

The ADS774H is a 12-bit, successive-approximation analog-to-digital converter (ADC) that uses an innovative capacitor array (CDAC) implemented in low-power CMOS technology. This device is a drop-in replacement forthe ADS774, with internal sampling, much lower power consumption, and the ability to operate from a single +5V supply.

The ADS774H is complete with an internal clock, microprocessor interface, three-state outputs, and internal scaling resistors for input ranges of 0V to +10V, 0V to +20V, ±5V, or ±10V. The maximum throughput time is 8.5µs over the full operating temperature range, including both acquisition and conversion.

Complete user control over the internal sampling function facilitates elimination of external sample/hold amplifiers in most existing designs.

The ADS774H requires +5V, with -15V optional. No +15V supply is required. Packages includea 28-pin SO, and 0.3in-wide or 0.6in-wide 28-pin DIPsDIP-28 package is product preview.

特性

· Drop-In Replacement for the ADS774

· Complete Sampling ADC with Reference, Clock, and Microprocessor Interface

· Fast Acquisition and Conversion: 8.5µs Max Over Temperature

· Eliminates External Sample/Hold in Most Applications

· Ensured AC and DC Performance

· Single +5V Supply Operation

· Low Power: 120mW Max

· Package Options: SO, 0.6in and 0.3in DIPs(1)

· APPLICATIONS

o Medical Instrumentation

o Data Acquisition Systems

o Robotics

o Industrial Control

o Test Equipment

o Digital Signal Processing

o DSP Servo Control

应用范围

支持多种输入类型的模数转换器输入驱动器设计工具

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