MAX11212

The MAX11212 provides a high-accuracy internal oscillator that requires no external components. The MAX11212 is an ultra-low power (< 300FA max active current), high-resolution, serial-output ADC. This device provides the highest resolution per unit power in the industry, and is optimized for applications that require very high dynamic range with low power such as sensors on a 4mA to 20mA industrial control loop. It operates over the -40°C to +85°C temperature range. When used with the specified data rates, the internal digital filter provides more than 80dB rejection of 50Hz or 60Hz line noise. It provides a simple 2-wire serial interface in the space-saving, 10-pin FMAXM package.

The features of MAX11212 can be summarized as (1)18-bit full-scale resolution; (2)720nVRMnoise; (3)3ppm INL; (4)no missing codes; (5)ultra-low-power dissipation operating-mode current drain < 300A (max)/ sleep-mode current drain < 0.1A; (6)2.7V to 3.6V analog supply voltage Range; (7)1.7V to 3.6V digital and I/O supply voltage range; (8)fully differential signal inputs; (9)fully differential reference inputs; (10)internal system clock 2.4576MHz (MAX11212A)/ 2.2528MHz;(11)external clock; (12)serial 2-wire interface (clock input and data output); (13)on-demand offset and gain self-calibration; (14)-40°C to +85°C operating temperature range; (15)±2kV ESD protection; (16)lead(Pb)-free and RoHS-compliant MAX package.

The absolute maximum ratings of MAX11212 are (1)any pin to GND: -0.3V to +3.9V; (2)AVDD to GND: -0.3V to +3.9V; (3)DVDD to GND: -0.3V to +3.9V; (4)analog inputs (AINP, AINN, REFP, REFN)to GND: -0.3V to (VAVDD + 0.3V); (5)digital inputs and digital outputs to GND: -0.3V to (VDVDD + 0.3V); (6)ESDHB (AVDD, AINP, AINN, REFP, REFN, DVDD, CLK, SCLK, RDY/DOUT, GND): Q2kV; (7)continuous power dissipation (TA = +70°C)10-pin FMAX (derate 5.6mW/°C above +70°C): 444mW; (8)operating temperature range: -40°C to +85°C; (9)junction temperature: +150°C; (10)storage temperature range: -55°C to +150°C; (11)lead temperature (soldering, 10s): +300°C; (12)soldering temperature (reflow): +260°C.