Аналого-цифровые преобразователи (АЦП) MAX176BCPA+

АЦП , 12 бит, 250 Квыборок/с, Несимметричный, SPI, Биполярный (+/-), 4.75 В

The MAX176BCPA+ is a serial output, 12bit analogue to digital converter (ADC) with track/hold and reference in 8 pin DIP package. It achieves 250Ksps sampling rate by combining a fast track/hold (0.4µs maximum acquisition time), 3.5µs ADC and buried zener voltage reference. The device also saves space with serial interface and DIP package. Supply and reference decoupling capacitors are the only external components needed. The CLOCK input can be driven from an external divided down microprocessor clock or from serial clock output of a microcontroller. The MAX176 works with +5V and -12V to -15V supply voltages (148mW typical power dissipation). The 3-wire serial interface of MAX176 works with general purpose serial to parallel converters such as 74HC495 as well as with digital signal processor and microcontrollers. Its 3-wire interface is fully compatible with SPI, QSPI and MICROWIRE interface standards. It is used in telecommunications and sonar/radar signal processing.

• Positive supply voltage range from 4.75V to 5.25V
• Operating temperature range from 0°C to 70°C
• Positive supply current of 5.5mA and negative supply current of -8mA
• Easy to opto or transformer isolate
• Integral nonlinearity of ±1LSB at TA = TMIN to TMAX and differential nonlinearity of ±1LSB
• Offset error of ±1LSB and offset tempco of 0.5ppm
• °C
• Full scale error of ±8LSB at TA = 25°C and full scale tempco of ±1ppm
• °C (excluding reference drift)
• Positive supply rejection of ±1

• 2LSB and negative supply rejection of ±1
• 2LSB at VSS = -15V
• Clock frequency from 0.1MHz to 4MHz

Области применения

Обработка Сигнала, Промышленное