Аналого-цифровые преобразователи (АЦП) HI3-574AKN-5Z

АЦП , 12 бит, 40 Квыборок/с, Несимметричный, Параллельный, Биполярный (+/-), -11.4 В

The HI3-574AKN-5Z is a complete 12-bit Analog-to-digital Converter (ADC) with microprocessor interface. The bipolar analog die features the Intersil dielectric isolation process, which provides enhanced AC performance and freedom from latch-up. Custom design of each IC has yielded improved performance over existing versions of this converter. The voltage comparator features high PSRR plus a high speed current-mode latch and provides precise decisions down to 0.1LSB of input overdrive. More than 2X reduction in noise have been achieved by using current instead of voltage for transmission of all signals between the analog and digital ICs. Also the clock oscillator is current controlled for excellent stability over temperature. It offers standard uni-polar and bipolar input ranges, laser trimmed for specified linearity, gain and offset accuracy. The low noise buried zener reference circuit is trimmed for minimum temperature coefficient.

• No missing codes over temperature
• Minimal setup time for control signals
• Fast conversion time
• Low noise, via current-mode signal transmission between chips
• Byte enable/short cycle

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