Datasheet

AD5291/AD5292
Rev. D | Page 18 of 32
0
–50
–45
–40
–35
–30
–25
–20
–15
–10
–5
1M100k10k1k10010
07674-025
GAIN (dB)
FREQUENCY (Hz)
AD5292 (AD5291)
0x200 (0x80)
0x100 (0x40)
0x080 (0x20)
0x040 (0x10)
0x020 ( 0x08)
0x010 (0x04)
0x008 (0x02)
0x004 (0x01)
0x002 0x001
Figure 42. 20 kΩ Gain vs. Frequency vs. Code
–50
–40
–30
–10
0
10 1M100k10k1k100
GAIN (dB)
FREQUENCY (Hz)
0x200 (0x80)
0x080 (0x20)
0x020 ( 0x08)
0x010 (0x04)
0x004 (0x01)
0x002 0x001
AD5292 (AD5291)
–20
–60
07674-200
0x040 (0x10)
0x008 (0x02)
0x100 (0x40)
Figure 43. 50 kΩ Gain vs. Frequency vs. Code
07674-027
0
–120
–105
–90
–75
–60
–45
–30
–15
THD + N (dB)
FREQUENCY (Hz)
100 1k 10k 100k
V
DD
/V
SS
= ±15V
CODE = HALF SCALE
V
IN
= 1V rms
Noise BW = 22kHz
50k
20k
100k
Figure 44. THD + Noise vs. Frequency
–65
–60
–50
–45
–40
–35
–30
–25
–15
–10
–5
0
11100k10k1k10010
GAIN (dB)
FREQUENCY (Hz)
M
0x200 (0x80)
0x100 (0x40)
0x080 (0x20)
0x040 (0x10)
0x020 ( 0x08)
0x010 (0x04)
0x008 (0x02)
0x004 (0x01)
0x002
0x001
AD5292 (AD5291)
–20
–55
–67.5
07674-201
Figure 45. 100 kΩ Gain vs. Frequency vs. Code
–70
–60
–50
–40
–30
–20
–10
0
100 1k 10k
FREQUENCY (Hz)
100k 1M
100k
20k
50k
07674-026
PSRR (dB)
Figure 46. Power Supply Rejection Ratio vs. Frequency
–140
–120
–100
–80
–60
–40
–20
0
0.001 0.01 0.1 1 10
THD + N (dB)
AMPLITUDE (V rms)
07674-220
V
DD
/V
SS
= ±15V,
CODE = HALF SCALE
f
IN
= 1kHz
NOISE BW = 22kHz
50k
20k
100k
Figure 47. THD + Noise vs. Amplitude