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AD7150

Features: ·Ultra low power·3.3 V, 90 uA·Response time 10 ms·Adaptive environmental compensation·Two independent capacitance input channels·Sensor capacitance (CSENS) 0 up to 14 pF·Sensitivity to 0.8 fF·EMC tested·Two modes of operation:·Standalone with fixed settings·Interfaced to a uC for user-de...

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SeekIC No. : 004269906 Detail

AD7150: Features: ·Ultra low power·3.3 V, 90 uA·Response time 10 ms·Adaptive environmental compensation·Two independent capacitance input channels·Sensor capacitance (CSENS) 0 up to 14 pF·Sensitivity to 0.8...

AD7150 Data Sheet

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Part Number:
AD7150
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·Ultra low power
·3.3 V, 90 uA
·Response time 10 ms
·Adaptive environmental compensation
·Two independent capacitance input channels
·Sensor capacitance (CSENS) 0 up to 14 pF
·Sensitivity to 0.8 fF
·EMC tested
·Two modes of operation:
·Standalone with fixed settings
·Interfaced to a uC for user-defined settings
·Two proximity detection output flags
·2-wire serial interface (I2C®-compatible)
·Operating temperature:
·-40°C to +125°C
·10-lead uSOIC package




Application

·Proximity sensing
·Contact-less switching
·Position detection
·Level detection




Pinout

AD7150 Diagram




Specifications

Resolution (Bits) 12bit
T-Put Rate 100SPS
# Chan 2
Supply V Single(+2.7 to +3.6)
Pwr Diss 0.43mW
Interface I2C/Ser 2-Wire,Ser
Ain Range 0.5 pF,1 pF,2 pF,4 pF
SNR (dB) n/a
Pkg Type SOP


Positive Supply Voltage VDD to GND....... −0.3 V to + 3.9 V
Voltage on any Input or Output to GND ..0.3 V to VDD + 0.3 V
ESD Rating (ESD Association Human Body
Model, S5.1)............................ TBD V
Operating Temperature Range ..........40°C to +125°C
Storage Temperature Range ........... 65°C to +150°C
Junction Temperature ...................... 150°C
uSOIC Package JA,
(Thermal Impedance-to-Air)..................206°C/W
uSOIC Package JC,
(Thermal Impedance-to-Case)................ 44 °C/W
Lead Temperature, Soldering (10 sec) ............ 300°C
IR Reflow, Peak Temperature .................. 220°C




Description

The AD7150 delivers a complete signal processing solution for capacitive proximity sensors, featuring an ultra low power converter with fast response time.

The AD7150 uses Analog Devices' capacitance to digital converter (CDC) technology, which combines features important for interfacing to real sensors, such as a high input sensitivity and a high tolerance of both input parasitic ground capacitance and leakage current.

The integrated adaptive threshold algorithm compensates for any variations in the sensor capacitance due to environmental factors like humidity and temperature, or changes in the dielectric material over time.

By default, the AD7150 operates in standalone mode using the fixed power up settings and indicates detection on two digital outputs. Alternatively, the AD7150 can be interfaced to a uC via I2C interface, the internal registers can be programmed with user-defined settings and the data and status can be read from the part.

The AD7150 operates from a 3.3 V power supply. It is specified over the temperature range of -40°C to +125°C.






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