MAS6503 datasheet(1/34 Pages) MAS

部件名	MAS6503

功能描述	Piezoresistive Sensor Signal Interface IC

PDF	34 Pages

Scroll/Zoom	100%

制造商	MAS [Micro Analog systems]

网页	http://www.mas-oy.com

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DA6503.005

14 December 2016

1 (34)

MAS6503

Piezoresistive Sensor Signal Interface IC

 Optimized for Piezoresistive

Pressure Sensors

 Very Low Power Consumption

 1.8V operation

 VDD Level Monitoring

 Ratiometric 24 Bit  ADC

 SPI or I2C Bus with programmable

I2C address

 EEPROM Calibration Memory

DESCRIPTION

MAS6503 is a 24 bit Analog-to-Digital Converter

(ADC),

which

employs

a

delta-sigma

(ΔΣ)

conversion technique. The resolution for a signal

range of 373 mV is 17.4 bits.

MAS6503 is designed especially to meet

the requirement for low power consumption, thus

making it an ideal choice for battery powered

systems. Overall current consumption values of

18.3 µA (one conversion in a second at maximum

resolution) or less can be achieved. The minimum

supply voltage is as low as 1.8V.

MAS6503 has an on-chip decimator filter

that processes the output of the third order ΔΣ –

modulator, giving a high resolution conversion

result. The ADC also has four selectable input

signal ranges with eight optional offset levels.

A 4-wire SPI or 2-wire I2C bus compatible

serial bus is used for configuring conversion

parameters, starting a conversion and reading out

the A/D conversion result. The I2C address is

programmable to allow several sensors to be

connected to the same bus.

MAS6503 has one input channel suitable

for a piezoresistive pressure sensor. In addition to

pressure

measurement

the

device

can

be

configured for temperature measurement. The VDD

level monitoring feature is also useful especially in

battery operated systems.

The 256-bit EEPROM memory is available

for storing trimming and calibration data on chip. An

application optimized compensation algorithm can

be used

by the

host

system

for

optimal

performance.

FEATURES

APPLICATIONS



Low Standby Current Consumption: 10 nA Typ



Very Low Supply Current: 0.9 µA…18.3 µA Typ



Supply Voltage: 1.8 V…3.6 V



Ratiometric ΔΣ Conversion



Selectable Input Signal Ranges (VDD=2.7V):



373, 253, 172 and 115 mVPP



Selectable Offset Options (VDD=2.7V):



±126, ±86, ±57 and ±40 mV



Selectable Sensor Resistance Values



2, 2.5, 3, 3.5, 4, 4.5, 5 and 10 k





Over Sampling Ratio: 4096, 2048, 1024, 512,

256



Internal System Clock Signal 250 kHz



Conversion Times 1.41 ms…16.77 ms Typ



2-Wire Serial Data Interface (I2C Bus) with

programmable I2C address



256 Bit EEPROM Memory



Calibrated Piezoresistive Pressure Modules



Temperature measurement



Battery Powered Systems



Low Frequency Measurement Applications



Current/Power Consumption Critical Systems



Navigation systems.



Industrial and Process Control Applications in

Noisy Environments

类似零件编号 - MAS6503

制造商	部件名	数据表	功能描述
Micro Analog systems	MAS6501	205Kb / 16P	16-Bit Analog-to-Digital Converter
	MAS6501BA1ST206	205Kb / 16P	16-Bit Analog-to-Digital Converter
	MAS6501BA1WA300	205Kb / 16P	16-Bit Analog-to-Digital Converter
	MAS6502	291Kb / 20P	Piezoresistive Sensor
	MAS6502	39Kb / 3P	Writing data to the EEPROM

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