ADS774H中文资料兼容微处理器的采样 CMS 模数转换器数据手册TI规格书

描述 Description

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 Features

• 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
• APPLICATIONS
• Medical Instrumentation
• Data Acquisition Systems
• Robotics
• Industrial Control
• Test Equipment
• Digital Signal Processing
• DSP Servo Control