MAS6512 datasheet(1/32 Pages) MAS

部件名	MAS6512

功能描述	Capacitive Sensor Signal Interface IC

PDF	32 Pages

Scroll/Zoom	100%

制造商	MAS [Micro Analog systems]

网页	http://www.mas-oy.com

标志

1 / 32 page

DA6512.003

2 December, 2016

.

1 (32)

MAS6512

Capacitive Sensor Signal Interface IC

 Single or Dual Capacitance Sensors

 Very Low Power Consumption

 1.8V Operation

 On Chip Temperature Sensor

 VDD Level Monitoring

 16-Bit Ratiometric  CDC

 EEPROM Calibration Memory

 SPI or I2C Bus with programmable

I2C device address

DESCRIPTION

MAS6512 capacitive sensor signal Interface IC can

interface both single and dual capacitance sensors.

It uses a 16-bit Capacitance-to-Digital Converter

(CDC),

which

employs

a

delta-sigma

(ΔΣ)

conversion technique. The output data from the ΔΣ-

modulator is processed by an on-chip decimator

filter, producing a high resolution conversion result.

The converter is run by an internal clock oscillator

making an external converter clock unnecessary.

The converter input range is programmable to meet

various sensor offset and changing capacitance

values. Maximum sensor capacitance is 40pF but

higher maximum value can be reached by using

slower conversion speed or scaling the signal by

using an external series capacitor.

The measurement resolution depends on the

programmed capacitance range and over sampling

ratio (OSR) selections.

MAS6512 supports two capacitance measurement

modes. The output can be proportional either to

capacitance difference (CS-CR) or to capacitance

ratio (CS-CR)/CS.

The IC is designed especially to meet the

requirement for low power consumption, thus

making it an ideal choice for battery powered

systems. Current consumption values of 24.1 µA

with high resolution or 3.3 µA with low resolution, at

a conversion rate of one conversion per second,

can be achieved.

In addition to measuring capacitance the device has

an internal temperature sensor for temperature

measurement

and

temperature

compensation

purposes. The VDD level monitoring feature is

useful especially in battery operated systems. The

256-bit EEPROM memory stores trimming and

calibration coefficients on chip.

A serial interface, compatible with a bi-directional 2-

wire I2C bus and 4-wire SPI bus, is used for

conversion setup, starting a conversion and reading

the conversion result.

FEATURES

APPLICATIONS



Sensor Offset and Gain Adjustment



Changing Capacitance Range

C 2pF…30pF



Internal Offset Capacitance Matrix 0pF…22pF



External Capacitance up to 40pF (or higher

using external clock)



Resolution 16.6 bit



Internal Clock Oscillator



On Chip Temperature Sensor -40

C...+85C



VDD Level Monitoring



Low Voltage Operation 1.8 V…3.6 V



Low Supply Current: 3.3 µA...24.1 µA



Conversion Time 5.8ms...41.6ms (24Hz...173Hz)



Internal 256-bit EEPROM Calibration Memory



Internal Clock Oscillator



I2C and SPI Compatible Serial Interface



QFN-16 Package

Capacitive Pressure Sensors



Humidity Sensors



Medical Devices



Flow Meters



Sport Watches



Altimeter and Barometer Systems



Mobile and Battery Powered Systems



Low Frequency Measurement applications



Current/Power Consumption Critical Systems



Industrial and Process Control applications in

noisy environments

类似零件编号 - MAS6512

制造商	部件名	数据表	功能描述
Micro Analog systems	MAS6512	293Kb / 12P	Capacitive Sensor Signal Interface IC

More results

类似说明 - MAS6512

制造商	部件名	数据表	功能描述
EM Microelectronic - MA...	EM6420	110Kb / 1P	Ultra Low Power Capacitive Touch Sensor Interface IC
ams AG	AS1716	419Kb / 12P	Capacitive Sensor Interface
ams AG	AS1716_V2	323Kb / 12P	Capacitive Sensor Interface
Micro Analog systems	MAS6512	293Kb / 12P	Capacitive Sensor Signal Interface IC
Integrated Device Techn...	ZSSC3123	688Kb / 63P	Capacitive Sensor Signal Conditioner
EM Microelectronic - MA...	EM6420	849Kb / 54P	Ultra Low Power Capacitive Touch Sensor Interface IC
Micro Analog systems	MAS6510	800Kb / 32P	Capacitive Sensor Signal Interface IC
	MAS6505	1Mb / 44P	Piezoresistive Sensor Signal Interface IC
	MAS6503	1Mb / 34P	Piezoresistive Sensor Signal Interface IC
Renesas Technology Corp	ZSSC3230	1Mb / 39P	Capacitive Sensor Signal Conditioner IC