MAX11208

The MAX11208 provides a simple 2-wire serial interface in the space-saving, 10-pin FMAXM package. It operates over the -40°C to +85°C temperature range. The device provides a high-accuracy internal oscillator that requires no external components. The MAX11208 is an ultra-low-power (< 300FA 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. When used with the specified data rates, the internal digital filter provides more than 80dB rejection of 50Hz or 60Hz line noise.

The features of MAX11208 can be summarized as (1)20-Bit Full-Scale Resolution 20-Bit Noise-Free Resolution at 13.75sps / 19-Bit Noise-Free Resolution at 120sps; (2)720nVRM noise (MAX11208B); (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 (MAX11208A)/ 2.2528MHz (MAX11208B); (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 MAX11208 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, CS, 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.