ADC offers excellent AC and DC performance with true bipolar input range
Mouser Electronics  is now stocking the industry's smallest true bipolar +/-5V, 18-bit analog-to-digital converter from Maxim Integrated . MAX11156 SAR ADC offers excellent AC and DC performance with true bipolar input range.
This reduced-form factor Maxim device features internal reference and measures a ±5V (10VP-P) input range while operating from a single 5V supply. A patented charge-pump architecture allows direct sampling of high-impedance sources. MAX11156 guarantees 18-bit resolution with no missing codes and communicates using an SPI-compatible serial interface at 2.5V, 3V, 3.3V, or 5V logic. This Maxim ADC is ideal for use in data acquisition systems, industrial control systems/process control, medical instrumentation, and automatic test equipment.
Learn more about MAX11156 at http://www.mouser.com/new/maxim-integrated/maxim-max11156 .