AD7324 Просмотр технического описания (PDF) - Analog Devices
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AD7324 Datasheet PDF : 36 Pages
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AD7324
8k
7600
VCC = 5V
7k
VDD/VSS = ±12V
RANGE = ±10V
10k SAMPLES
6k
TA = 25°C
5k
4k
3k
2k
1201
1165
1k
0
23
0
–3
–2
–1
0
11
0
1
2
3
CODE
Figure 16. Histogram of Codes, Single-Ended Mode
2.0
1.5
INL = 500kSPS
1.0
INL = 750kSPS
0.5
INL = 1MSPS
0
INL = 500kSPS
INL = 750kSPS
–0.5
–1.0
–1.5
–2.0
5
INL = 1MSPS
7
9
11
±5V RANGE
VCC = VDRIVE = 5V
INTERNAL REFERENCE
SINGLE-ENDED MODE
13
15
17
19
±VDD/VSS SUPPLY VOLTAGE (V)
Figure 19. INL Error vs. Supply Voltage at 500 kSPS, 750 kSPS, and 1 MSPS
–50
–55
–60
–65
–70 VCC = 5V
–75
–80
VCC = 3V
–85
–90
–95
DIFFERENTIAL MODE
FIN = 50kHz
VDD/VSS = ±12V
fS = 1MSPS
TA = 25°C
–100
0
200
400
600
800
1000
1200
RIPPLE FREQUENCY (kHz)
Figure 17. CMRR vs. Common-Mode Ripple Frequency
–50
100mV p-p SINE WAVE ON EACH SUPPLY
–55 NO DECOUPLING
SINGLE-ENDED MODE
–60 fS = 1MSPS
–65
VCC = 5V
–70
VCC = 3V
–75
–80
VDD = 12V
–85
VSS = –12V
–90
–95
–100
0
200
400
600
800
1000
1200
SUPPLY RIPPLE FREQUENCY (kHz)
Figure 20. PSRR vs. Supply Ripple Frequency Without Supply Decoupling
2.0
DNL = 750kSPS
1.5
DNL = 500kSPS
1.0
0.5
DNL = 1MSPS
0
DNL = 1MSPS
–0.5
–1.0
DNL = 750kSPS
±5V RANGE
–1.5 VCC = VDRIVE = 5V
INTERNAL REFERENCE
SINGLE-ENDED MODE
–2.0
5
7
9
11
13
DNL = 500kSPS
15
17
19
±VDD/VSS SUPPLY VOLTAGE (V)
Figure 18. DNL Error vs. Supply Voltage at 500 kSPS, 750 kSPS, and 1 MSPS
–50
VCC = VDRIVE = 5V
–55
VDD/VSS = ±12V
TA = 25°C
INTERNAL REFERENCE
–60 RANGE = ±10V AND ±2.5V
RIN = 100Ω, ±10V RANGE
–65
RIN = 2000Ω, ±10V RANGE
–70 RIN = 1000Ω, ±10V RANGE
RIN = 50Ω,
±10V RANGE
RIN = 4700Ω,
±2.5V RANGE
–75
RIN = 2000Ω,
±2.5V RANGE
–80
–85
–90
–95
10
RIN = 1000Ω,
±2.5V RANGE
RIN = 100Ω,
±2.5V RANGE
RIN = 50Ω,
±2.5V RANGE
100
1000
ANALOG INPUT FREQUENCY (kHz)
Figure 21. THD vs. Analog Input Frequency for Various Source Impedances,
True Differential Mode
Rev. 0 | Page 12 of 36
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