Analog Devices has added to its range of precision sigma-delta ADCs with 12- and 16-bit small-package devices optimised for noise performance and low-power operation for portable industrial and medical instrumentation equipment.

The 12-bit AD7170 and 16-bit AD7171 have a 125Hz output data rate.

The AD7170 and AD7171 achieve 12- and 16-bit noise-free resolution, respectively, meeting the specifications of equipment used to precisely monitor patient vital signs and measure real-world instrumentation phenomena, such as pressure and temperature.  

Features include INL (integral nonlinearity) of +/-0.1 LSB (least significant bit) at 12 bits (AD7170) and INL of  +/-0.4 LSB at 16 bits (AD7171)

Power consumption is 110[micro]A (5[micro]A in power-down mode)
Complementary components for the AD7171 ADC include the ADR5041 precision reference and the AD8628 precision amplifier.
 
For more info, see www.analog.com