AD7846AP datasheet(6/16 Pages) AD

6 / 16 page

REV. E

–6–

AD7846–Typical Performance Curves

FREQUENCY – Hz

101

102

103

104

105

106

107

VDD = +15V

VSS = –15V

VREF+ = 5V SINE WAVE

VREF– = 0V

GAIN = +2

Figure 6. Large Signal Frequency

Response

1 s/DIV

50mV/DIV

5V/DIV

DATA

VOUT

5V/DIV

LDAC

Figure 9. Digital-to-Analog Glitch

Impulse With Internal Deglitcher

(10 . . . 000 to 011 . . . 111 Transition)

Figure 12. Spectral Response of

Digitally Constructed Sine Wave

FREQUENCY – Hz

102

103

104

105

106

VDD = +15V

VSS = –15V

VREF+ = +1Vrms

VREF– = 0V

Figure 5. AC Feedthrough vs.

Frequency

0.5 s/DIV

50mV/DIV

5V/DIV

DATA

VOUT

Figure 8. Digital-to-Analog Glitch

Impulse Without Internal Deglitcher

(10 . . . 000 to 011 . . . 111 Transition)

Figure 11. Pulse Response

(Small Signal)

Figure 4. AC Feedthrough. VREF+ =

1 V rms, 10 kHz Sine Wave

FREQUENCY – Hz

102

100

103

104

105

106

VREF+ = VREF– = 0V

GAIN = +1

DAC LOADED WITH ALL 1s

200

300

400

500

Figure 7. Noise Spectral Density

Figure 10. Pulse Response

(Large Signal)

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