LMP90078 Multi-Channel, Low-Power 16-Bit Sensor AFE with True Continuous Background Calibration | TIJ.co.jp

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Multi-Channel, Low-Power 16-Bit Sensor AFE with True Continuous Background Calibration



  • ADS114S06  - このデバイスは類似の機能を備えていますが、同等の機能ではありません。   ADS114S06 has more analog inputs (6), faster sample rate (4kSPS), lower power, smaller package, better DC accuracy, internal voltage reference


The LLMP9007x and LMP90080 are highly integrated, multi-channel, low-power 16-bit Sensor AFEs. The devices feature a precision, 16-bit Sigma Delta Analog-to-Digital Converter (ADC) with a low-noise programmable gain amplifier and a fully differential high impedance analog input multiplexer. A true continuous background calibration feature allows calibration at all gains and output data rates without interrupting the signal path. The background calibration feature essentially eliminates gain and offset errors across temperature and time, providing measurement accuracy without sacrificing speed and power consumption.

Another feature of the LMP9007x and LMP90080 is continuous background sensor diagnostics, allowing the detection of open and short circuit conditions and out-of-range signals, without requiring user intervention, resulting in enhanced system reliability.

Two sets of independent external reference voltage pins allow multiple ratiometric measurements. In addition, two matched programmable current sources are available in the LMP90080/LMP90078 to excite external sensors such as resistive temperature detectors and bridge sensors. Furthermore, seven GPIO pins are provided for interfacing to external LEDs and switches to simplify control across an isolation barrier.

Collectively, these features make the LMP90080/LMP90079/LMP90078/LMP90077 complete analog front-ends for low-power, precision sensor applications such as temperature, pressure, strain gauge, and industrial process control. The LMP90080/LMP90079/LMP90078/LMP90077 are ensured over the extended temperature range of –40°C to +125°C and are available in a 28-pin package with an exposed pad.


  • 16-Bit Low-Power Sigma Delta ADC
  • True Continuous Background Calibration at All
  • In-Place System Calibration Using Expected
    Value Programming
  • Low-Noise Programmable Gain (1x - 128x)
  • Continuous Background Open/Short and Out of
    Range Sensor Diagnostics
  • 8 Output Data Rates (ODR) with Single-Cycle
  • 2 Matched Excitation Current Sources from 100
    µA to 1000 µA (LMP90080/LMP90078)
  • 4-DIFF / 7-SE Inputs (LMP90080/LMP90079)
  • 2-DIFF / 4-SE Inputs (LMP90078/LMP90077)
  • 7 General Purpose Input/Output Pins
  • Chopper-Stabilized Buffer for Low Offset
  • SPI 4/3-Wire with CRC Data Link Error Detection
  • 50 Hz to 60 Hz Line Rejection at ODR ≤13.42
  • Independent Gain and ODR Selection per
  • Supported by WEBENCH® Sensor AFE Designer
  • Automatic Channel Sequencer
  • Key Specifications
    • ENOB/NFR: Up to 16/16 Bits
    • Offset Error (typ): 8.4 nV
    • Gain Error (typ): 7 ppm
    • Total Noise: <10 µV-rms
    • Integral Non-Linearity (INL Max): ±1 LSB
    • Output Data Rates (ODR): 1.6775–214.65 SPS
    • Analog Voltage, VA: 2.85 to 5.5 V
    • Operating Temp Range: –40°C to 125°C
    • Package: 28 Pin Exposed Pad


他の製品と比較 高精度 ADCs (<=10MSPS) メール Excelへダウンロード
Part number オーダー・オプション Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) Rating
LMP90100 ご注文 24     0.215     7     SPI     -40 to 125     HTSSOP | 28     5.06 | 1ku     1.2     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)     Delta-Sigma     Differential
Multiplexed     Ext     Excitation Current Sources (iDACs)
5.5     0     2.85     5.5     2.7     5.5     Catalog