AD7262 데이터 시트보기 (PDF) - Analog Devices
부품명
상세내역
제조사
AD7262 Datasheet PDF : 33 Pages
| |||
AD7262
–90
–88
–86
–84
–82
–80
–78
–76
AVCC = 5V
–74
VfSD=RIV1EMS=P5SV
–72
INTERNAL REFERENCE
fRIPPLE = 50kHz
–70
1 2 3 4 6 8 12 16 24 32 48 64 96 128
GAIN
Figure 17. Common-Mode Rejection vs. Gain
–80
–79
–78
–77
–76
–75
–74
–73
–72
–71
–70
0
AVCC = 5V
fVSD=RIV1EMS=P5SV
VRIPPLE = 700mV p-p
GAIN = 2
INTERNAL REFERENCE
20 40 60 80 100 120 140 160 180 200
RIPPLE FREQUENCY (kHz)
Figure 18. Common-Mode Rejection vs. Common-Mode Ripple Frequency
–10
AVCC = 5V
–20 VfSD=RIV1EMS=P5SV
INTERNAL REFERENCE
–30 fIN = 100kHz
–40
GAIN 1
GAIN 2
–50
–60
GAIN 3
–70
GAIN 8 GAIN 4
GAIN 16
–80
–90
GAIN 12
GAIN 24
GAIN ≥ 32
GAIN 6
–100
1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 3.7
VCM RANGE (V)
Figure 19. THD vs. Common-Mode Range for Various PGA Gain Settings
Data Sheet
10
AVCC = 5V
9
VDRIVE = 3.3V
TA = 25°C
8
H TO L, CA_CBVCC = 3.6V
7
H TO L, CA_CBVCC = 4.5V
6
H TO L, CA_CBVCC = 2.7V
H TO L, CA_CBVCC = 5V
5
L TO H, CA_CBVCC = 2.7V
L TO H, CA_CBVCC = 3.6V
4
L TO H, CA_CBVCC = 4.5V
3
L TO H, CA_CBVCC = 5V
2
1
0
0 10 20 30 40 50 60 70 80 90 100
OVERDRIVE VOLTAGE (mV)
Figure 20. Propagation Delay for Comparator A and Comparator B vs.
Overdrive Voltage for Various Supply Voltages
2.0
AVCC = 5V
1.8
VDRIVE = 3.3V
TA = 25°C
1.6
1.4
L TO H, CC_CDVCC = 2.7V
1.2
L TO H, CC_CDVCC = 3.6V
L TO H, CC_CDVCC = 4.5V
1.0
L TO H, CC_CDVCC = 5V
0.8
H TO L, CC_CDVCC = 2.7V
H TO L, CC_CDVCC = 3.6V
0.6
H TO L, CC_CDVCC = 5V
H TO L, CC_CDVCC = 4.5V
0.4
0.2
0
0 10 20 30 40 50 60 70 80 90 100
OVERDRIVE VOLTAGE (mV)
Figure 21. Propagation Delay for Comparator C and Comparator D vs.
Overdrive Voltage for Various Supply Voltages
–70
VDRIVE = 5V
–75 GAIN = 2
TA = 25°C
–80 INTERNAL REFERENCE
100mV p-p SINE WAVE ON AVCC
–85
AVCC DECOUPLED WITH
10µF AND 100nF CAPACITORS
–90
–95
–100
–105
–110
–115
–120
0
200
400
600
800
SUPPLY RIPPLE FREQUENCY (kHz)
1000
Figure 22. Power Supply Rejection Ratio vs. Supply Ripple Frequency?
Rev. B | Page 12 of 32
Share Link: 