Описание
The MAX182 is a complete, calibrated 4-channel 12-bit A/D converter (ADC) which includes a precision voltage reference, track-and-hold, and conversion clock. Internal calibration circuitry maintains true 12-bit performance over the full operating temperature range without external adjustments. In addition, each 60jis conversion includes an auto-zero cycle which reduces zero errors to typically below 1001,1V. CHIP SELECT, READ, and WRITE inputs are included for easy microprocessor interfacing without additional logic. 2-byte, 12-bit conversion data is provided over an 8-bit three-state output bus. Either byte may be read first. Two address bits control the 4-channel input multiplexer.The MAX182"s analog input range is OV to +5V when using a +5V reference, All four high-impedance input channels have excellent matching (typically 0.05 LSB), The MAX182A"s internal reference accuracy is ±0.3%, while the MAX182B is intended for use with an external reference.
- Continuous Transparent Calibration of Offset and Gain
- True 12-Bit Performance without Adjustments
- T/H Front End and Internal Reference
- Four High-Impedance Input Channels
- DC and Dynamically Specified
- Zero Error Typically < 100µV
- Standard Microprocessor Interface
- 28-Pin DIP and Wide SO Packages
