●The LMP93601 is an optimized Analog-Front-End (AFE) for occupancy detecting thermopile arrays up to 16 x 16 and thermopile mass flow sensors. The AFE combines excellent noise performance, low offset voltage, high gain, and low-power consumption at sampling rates ideal for monitoring thermopile sensors.
●The LMP93601 is a precision, 16-bit, analog-to-digital converter (ADC) offered in a leadless WQFN-24 package. The device features three differential EMI hardened inputs, a low-noise, high-gain programmable gain amplifier (PGA), a level shifting voltage source, an internal reference, and a programmable sampling rate. The many integrated features and the simple control of the LMP93601 through an SPI-compatible interface ease precision measurements of thermopile sensor signals.
● High Gain, Programmable up to 4096
● Low Gain Error Drift, <10 ppm/°C
● Low Offset Voltage and Drift; 1 µV, 50 nV/°C
● Low Input Bias Current, 1.3 nA
● Low Input Offset Current, 120 pA
● VCM Output Signal for Level Shifting, AVDD/3
● Three Differential EMI Hardened Inputs
● 16-bit ΔΣ Analog-to-Digital Converter
● Low Noise Performance, ENOB 15.3 bits
● Four Output Data Rates, up to 1.3 kSPS
● Internal Voltage Reference for ADC
● SPI Interface Transfer Rate, 20 MHz
● Brown-Out Detect
● PGA Over-Range Detect
● Separate Analog and Digital Supplies, 2.7 to 5.5 V
● Low Current Consumption, 1.1 mA
● Low Power Shutdown Mode, < 0.1µA
● Operating Temp. –25 to 85 °C
