LTC1655LIN8 datasheet(12/16 Pages) LINER

tên linh kiện	LTC1655LIN8

Giải thích chi tiết về linh kiện	16-Bit Rail-to-Rail Micropower DACs in

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LTC1655/LTC1655L

TYPICAL APPLICATIONS

This circuit shows how to make a bipolar output 16-bit

DAC with a wide output swing using an LTC1655 and an

LT1077. R1 and R2 resistively divide down the LTC1655

output and an offset is summed in using the LTC1655

onboard 2.048V reference and R3 and R4. R5 ensures that

the onboard reference is always sourcing current and

never has to sink any current even when VOUT is at full

scale. The LT1077 output will have a wide bipolar output

swing of – 4.096V to 4.096V as shown in the figure below.

With this output swing 1LSB = 125

µV.

A Wide Swing, Bipolar Output 16-Bit DAC

CLK

DIN

CS/LD

µP

0.1

µF

VCC

VOUT

GND

VREF

100k

LTC1655

1655/55L TA05

–

LT1077

–5V

200k

100k

200k

(2)(DIN)(4.096)

65536

VOUT:

DIN

VOUT

4.096

– 4.096

32768

65535

TRANSFER CURVE

– 4.096V

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