ADT7316(RevPrN) 查看數據表（PDF） - Analog Devices

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ADT7316
(Rev.:RevPrN)

SPI/I2C® Compatible, 10-Bit Digital Temperature Sensor and Quad Voltage Output 12/10/8-Bit DAC

Analog Devices 

PRELIMINARY TECHNICAL DATA

ADT7316/7317/7318

TOTAL HARMONIC DISTORTION

This is the difference between an ideal sine wave and its

attenuated version using the DAC. The sine wave is used

as the reference for the DAC, and the THD is a measure of

the harmonics present on the DAC output. It is measured

in dBs.

ROUND ROBIN

This term is used to describe the ADT7316/17/18 cycling

through the available measurement channels in sequence

taking a measurement on each channel.

REV. PrN

O UTP UT

V OL T A GE

GAIN ERROR

+

OFFSET ERROR

NEG A TI VE

OFFSET

ERROR

DAC CODE

ACTUA L

IDE A L

AMPL IFIER

FOOTROOM

NEG A TIVE

OFFSET

ERROR

L OWER

DEADBAND

CODES

Figure 5. Transfer Function with Negative Offset

O UTP UT

VOL TAGE

GAIN ERROR

+

OFFSET ERROR

UPP ER

DEA DB A ND

CODES

ACTUAL

I DEA L

PO S ITIVE

OFFSET

ERROR

DAC C ODE

FULL SCALE

Figure 6. Transfer Function with Positive Offset (VREF = VDD)

–9–

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