DAC161S997 datasheet(7/27 Pages) TI

Numer części	DAC161S997

Szczegółowy opis	16-bit SPI Programmable DAC for 4-20mA Loops

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Producent	TI [Texas Instruments]

Strona internetowa	http://www.ti.com

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7 / 27 page

-40 -20

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80 100 120

-2.5

-2.0

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

2.0

2.5

TEMPERATURE (°C)

Min INL

Max INL

1

10

100

1k

10k

100k

1M

0

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40

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80

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FREQUENCY (Hz)

C1=C2=C3=1nF

C1=C2=C3=2.2nF

C1=C2=C3=10nF

C1=C2=C3=100nF

1

10

100

1k

10k

100k

-80

-70

-60

-50

-40

-30

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-10

0

FREQUENCY (Hz)

C1=C2=C3=2.2nF

HART Adaptation

C1=C2=C3=1nF

1

10

100

1k

10k

100k

1

10

100

1k

10k

100k

1M

INPUT CODE STEP (lsb)

C1=C2=C3=2.2nF

HART Adaptation

C1=C2=C3=1nF

0

4

8

12

16

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24

0

1

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OUTPUT CURRENT (mA)

Integration BW=1kHz

Integration BW=10kHz

4

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12

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16

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-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

2.0

2.5

OUTPUT CURRENT (mA)

DAC161S997

www.ti.com

SNAS621 – JUNE 2013

TYPICAL PERFORMANCE CHARACTERISTICS

Unless otherwise noted, data presented here was collected under these conditions VA = VD = 3.3 V, TA = 25°C, external

bipolar transistor: 2N3904, RE = 22

Ω, C1 = C2 = C3 = 2.2 nF.

INTEGRATED NOISE

LINEARITY

vs

ILOOP

Figure 2.

Figure 3.

ΣΔ Modulator Filter Response

Settling Time vs Input Step Size

Figure 4.

Figure 5.

Output Linearity vs Temperature

PSRR: ILOOP=4mA

Figure 6.

Figure 7.

7

Product Folder Links: DAC161S997

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