ADS7800数据手册集成电路（IC）的模数转换器（ADC）规格书PDF

描述 Description

The ADS7800 is a complete 12-bit sampling analog-to-digital converter using state-of-the-art CMOS structures. It contains a complete 12-bit successive approximation A/D converter with internal sample/hold, reference, clock, digital interface for microprocessor control, and three-state output drivers.

The ADS7800 is specified at a 333kHz sampling rate. Conversion time is factory set for 2.70µs max over temperature, and the high speed sampling input stage insures a total acquisition and conversion time of 3µs max over temperature. Precision, laser-trimmed scaling resistors provide industry-standard input ranges of ±5V or ±10V.

AC and DC performance are completely specified. Two grades based on linearity and dynamic performance are available to provide the optimum price/performance fit in a wide range of applications.

The 24-pin ADS7800 is available in plastic and side-braze hermetic 0.3\" wide DIPs, and in an SOIC package. It operates from a +5V supply and either a –12V or –15V supply. The ADS7800 is available in grades specified over 0°C to +70°C and –40°C to +85°C temperature ranges.

特性 Features

• 333k SAMPLES PER SECOND
• STANDARD ±10V AND ±5V INPUT RANGES
• DC PERFORMANCE OVER TEMP:
• No Missing Codes
• 1/2LSB Integral Linearity Error
• 3/4LSB Differential Linearity Error

• AC PERFORMANCE OVER TEMP:
• 72dB Signal-to-Noise Ratio
• 80dB Spurious-free Dynamic Range
• –80dB Total Harmonic Distortion

• INTERNAL SAMPLE/HOLD, REFERENCE, CLOCK, AND THREE-STATE OUTPUTS
• POWER DISSIPATION: 215mW max
• PACKAGE:
• 24-Pin Single-Wide DIP
• 24-Lead SOIC

Note: Recommended Voltage Reference: REF02 and REF102 All trademarks are teh property of their respective owners.