Maxim Integrated MAX176BCPA

Description
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 (0.4us max acquisition time), a 3.5us ADC, and a buried-zener voltage reference. The device also saves space with a serial interface and 8-pin DIP or 16-pin surface-mount SO packages. 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 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.

Features
12-Bit Resolution and Linearity
0.4us Track/Hold Acquisition Time
3.5us 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

Applications
Telecommunications
Digital Signal Processing (DSP)
Sonar
Radar Signal Processing
Industrial Data Acquisition