ADS7812数据手册集成电路（IC）的模数转换器（ADC）规格书PDF

描述 Description

The ADS7812 is a low-power, single +5V supply, 12-bit sampling analog-to-digital converter. It contains a complete 12-bit capacitor-based SAR A/D with a sample/hold, clock, reference, and serial data interface.
The converter can be configured for a variety of input ranges including ±10V, ±5V, 0V to 10V, and 0.5V to 4.5V. A high impedance 0.3V to 2.8V input range is also available (input impedance > 10M). For most input ranges, the input voltage can swing to +16.5V or –16.5V without damage to the converter.
A flexible SPI compatible serial interface allows data to be synchronized to an internal or external clock. The ADS7812 is specified at a 40kHz sampling rate over the –40°C to +85°C temperature range. It is available in a 0.3\" DIP-16 or an SO-16 package.

特性 Features

• 20µs max CONVERSION TIME
• SINGLE +5V SUPPLY OPERATION
• PIN-COMPATIBLE WITH 16-BIT ADS7813
• EASY-TO-USE SERIAL INTERFACE
• 0.3\" DIP-16 AND SO-16
• ±0.5LSB max INL AND DNL
• 72dB min SINAD
• USES INTERNAL OR EXTERNAL REFERENCE
• MULTIPLE INPUT RANGES
• 35mW max POWER DISSIPATION
• NO MISSING CODES
• 50µW POWER DOWN MODE
• APPLICATIONS
- DATA ACQUISITION SYSTEMS
• INDUSTRIAL CONTROL
• TEST EQUIPMENT
• DIGITAL SIGNAL PROCESSING
Note: Recommended Voltage Reference: REF02 and REF102