MAX11214EUG+

MAX11214EUG+ is a 24bit delta-sigma ADC that achieves excellent 140dB SNR while dissipating an ultra-low 5mW. The MAX11214 communicates via an SPI-compatible serial interface and is available in a small 24-pin TSSOP package. The MAX11214 offers a 6.5nV/√Hz noise programmable gain amplifier with gain settings between 1x to 128x. Optional buffers are also included to provide isolation of the signal inputs from the switched capacitor sampling network. This allows the MAX11214 to be used with high-impedance sources without compromising available dynamic range. The MAX11214 operates from a single 2.7V to 3.6V analogue supply, or split ±1.8V analogue supplies, allowing the analogue input to be sampled below ground. The digital supply range is 2.0V to 3.6V, allowing communication with 2.5V, 3V, or 3.3V logic. Typical applications include seismic data acquisition, scientific instrumentation, high-precision portable sensors, medical equipment and ATE.

• Sample rates up to 32ksps allow both precision DC and AC measurements
• Integral nonlinearity is guaranteed to 4ppm maximum, -122dB THD
• High resolution for instrumentation applications that require a wide dynamic range
• Longer battery life for portable applications
• 1ppm INL (type), 4ppm (max) high accuracy for DC measurements
• Flexible high-performance filter architecture simplifies design
• Enables system integration
• Enables integrated part and system calibration capability for gain and offset

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