AD5721RBRUZ(RevA) Ver la hoja de datos (PDF) - Analog Devices

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AD5721RBRUZ
(Rev.:RevA)

Multiple Range, 16-/12-Bit, Bipolar/Unipolar Voltage Output DACs with 2 ppm/°C Reference

Analog Devices 

Data Sheet

VREF

VOUT

500mV

5V

5V

SYNC

200µs/DIV

Figure 37. Reference Output Voltage Turn On Transient

10

8 VTVADSSD===25–+⁰12C11VV

6

4

2

0

–2

–4

–6

–8

–10

–2.0 –1.6 –1.2 –0.8 –0.4 0 0.4 0.8 1.2 1.6 2.0

TIME (Seconds)

Figure 38. Internal Reference Noise (100 kHz Bandwidth)

10

8 TVVADSSD===25–+⁰12C11VV

6

4

2

0

–2

–4

–6

–8

–10

–2.0 –1.6 –1.2 –0.8 –0.4 0

0.4 0.8 1.2 1.6 2.0

TIME (Second)

Figure 39. Internal Reference Noise (0.1 Hz to 10 Hz Bandwidth)

AD5761R/AD5721R

0.00001

0.000001

0.0000001

0.00000001

AVDD = 21V

AVSS = –11V

DVCC = 5V

LOAD = 2kΩ||200pF

CAP ON VREF = 10nF

0.000000001

10

100

1k

10k

100k

1M

FREQUENCY (Hz)

Figure 40. Reference Output Noise Spectral Density vs. Frequency

2.5014

2.5012

2.5010

2.5008

2.5006

2.5004

2.5002

2.5000

2.4998

VSS –13.50 –13.75 –14.00 –14.25 –14.50 –14.75 –15.00 –15.25 –15.50 –15.75 –16.00 –16.25

VDD 13.50 13.75 14.00 14.25 14.50 14.75 15.00 15.25 15.50 15.75 16.00 16.25

SUPPLY VOLTAGE (V)

Figure 41. Reference Output Voltage (VREFOUT) vs. Supply Voltage

3.0

VVTADSSD===25–+°12C11VV

2.5

2.0

1.5

–10

BIPOLAR 10V

UNIPOLAR 10V

BIPOLAR 5V

UNIPOLAR 5V

–2.5V TO 7.5V

BIPOLAR 3V

UNIPOLAR 16V

UNIPOLAR 20V

–8 –6 –4 –2 0 2 4 6 8 10

LOAD CURRENT (µA)

Figure 42. Internal Reference vs. Load Current

Rev. A | Page 17 of 35

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