Описание
The MAX176 is a complete analog-to-digital converter (ADC) that achieves a 250k samples per second (ksps) sampling rate by combining a fast track/hold (0.4µs max acquisition time), a 3.5µs ADC, and a buried-zener voltage reference. The device also saves space with serial interface and 8-pin DIP or 16-pin surface-mount SO Packages Supply are reference decoupling capacitors are the only external components needed. The CLOCK input can be driven from an external divided-down microprocessor clock or from the serial-clock output of a microcontroller. The MAX176 works with +5V and -12V to -15V supply voltages (148mW typ power dissipation). The MAX176"s 3-Wire serial interface works with general purpose serial-to-parallel converters, such as the 74HC595, as well as with digital-signal processors and microcontrollers. Its 3-Wire serial interface is fully compatible with SPI, QSPI and Microwire interface standards.
- 12-Bit Resolution and Linearity
- 0.4µs Track/Hold Acquisition Time
- 3.5µs Max Conversion Time
- 250ksps Sampling Rate
- SPI, QSPI and Microwire – Compatible Serial Output
- ±5V Input Voltage Range
- On Chip Voltage Reference
- Low Power (148mW)
- Easy to Opto- or Transformer-Isolate
- Small-Footprint 8-Pin DIP, 16-Pin SO
