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Low-noise, High gain, 3-Channel AFE for Thermopile Sensors


Package | PIN: NHZ | 24
Temp: S (-25 to 85)
Carrier: Cut Tape
Qty Price
1-9 $7.69
10-24 $6.92
25-99 $6.46
100-249 $5.79
250-499 $5.41
500-749 $4.70
750-999 $4.07
1000+ $3.99


  • 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

Texas Instruments  LMP93601NHZT

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.