HI5721-EVP 데이터 시트보기 (PDF) - Intersil

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HI5721-EVP

10-Bit, 125MSPS, High Speed D/A Converter

Intersil 

HI5721

Typical Performance Curves (Continued)

-1.20

-1.21

-1.22

-1.23

-1.24

-1.25

-50µA LOAD

-1.26

-1.27

100µA LOAD

-1.28

-1.29

NO LOAD

-1.30

-1.31

-1.32

-1.33

-1.34

-1.35

-40 -20

0

20

40

60

80

100

TEMPERATURE (oC)

FIGURE 16. REFERENCE VOLTAGE vs TEMPERATURE

0.80

0.75

0.70

0.65

0.60

0.55

0.50

-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90

TEMPERATURE (oC)

NOTE: Clock Frequency does not alter power dissipation.

FIGURE 17. POWER DISSIPATION vs TEMPERATURE

Pin Descriptions

PIN NO.

1-10

11

12

13

PIN NAME

D0 (LSB)

through D9

(MSB)

CLK

NC

INVERT

PIN DESCRIPTION

Digital Data Bit 0, the Least Significant Bit through Digital Data Bit 9, the Most Significant Bit.

Data Clock pin 100kHz to 125 MSPS.

No Connect.

Data Invert control for bits D0 (LSB) through D8. D9 (MSB) is not affected.

14

15, 28

16, 27

17

18

19

20

21

22

23

24

25

26

VCC

DGND

Digital Logic Supply +5V.

Digital Ground.

DVEE

RSET

AGND

-5.2V Logic Supply.

External resistor to set the full scale output current. IFS = 32 x (CTRL AMP IN/RSET). Typically 1960Ω .

Analog Ground supply current return pin.

ARTN

Analog Signal Return for the R/2R ladder.

IOUT

IOUT

AVEE

REF IN

CTRL AMP

OUT

Current Output pin.

Complementary Current Output pin.

-5.2V Analog Supply.

Reference Input pin. Typically connected to CTRL AMP OUT and a 0.1µF capacitor should be connected to

AVEE to bypass the reference voltage. Provides a reference for the current switching network.

Control Amplifier Output. Used to convert the internal reference or an external signal to the precision reference

current.

REF OUT Internal Reference Output. Output of the internal -1.25V (typical) bandgap voltage reference.

CTRL AMP IN Control Amplifier Input. High impedance, inverting input of the reference control/buffer amplifier.

9

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