AD5780(RevC) View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

AD5780
(Rev.:RevC)

System Ready, 18-Bit ±1 LSB INL, Voltage Output DAC

Analog Devices 

AD5780

10

9

8

7

6

5

4

3

2

1

0

–1

0

VREFP = +10V

VREFN = –10V

RC LOW-PASS FILTER

UNITY-GAIN MODE

ADA4898-1 OUTPUT BUFFER

1

2

3

4

5

TIME (µs)

Figure 42. 500 Code Step Settling Time

25

VREFP = +10V

VREFN = –10V

UNITY-GAIN MODE

NEGATIVE

POSITIVE

20

ADA4898-1 OUTPUT BUFFER

RC LOW-PASS FILTER

NEGATIVE

POSITIVE

CODE CHANGE CODE CHANGE

15

10

5

0

CODE

Figure 43. 6 MSB Segment Glitch Energy for ±10 V VREF

4.0

VREFP = 10V

VREFN = 0V

3.5 UNITY-GAIN MODE

ADA4898-1

OUTPUT BUFFER

3.0 RC LOW-PASS FILTER

2.5

2.0

1.5

1.0

0.5

0

NEGATIVE

POSITIVE

CODE

Figure 44. 6 MSB Segment Glitch Energy for 10 V VREF

Data Sheet

6

VREFP = 5V

VREFN = 0V

UNITY-GAIN MODE

5 ADA4898-1 OUTPUT BUFFER

RC LOW-PASS FILTER

4

3

2

1

0

NEGATIVE

POSITIVE

CODE

Figure 45. 6 MSB Segment Glitch Energy for 5 V VREF

55

±10V SPAN

+10V SPAN

45

+5V SPAN

35

25

15

5

–5

–15

–25

–1

0

1

2

3

TIME (µs)

Figure 46. Midscale Peak-to-Peak Glitch for ±10 V

800

TA = 25°C

VDD = +15V

600 VSS = –15V

VREFP = +10V

VREFN = –10V

400

MIDSCALE CODE LOADED

OUTPUT UNBUFFERED

200

0

–200

–400

–600

01

2

34

5

6

78

9 10

TIME (Seconds)

Figure 47. Voltage Output Noise, 0.1 Hz to 10 Hz Bandwidth

Rev. C | Page 16 of 28

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