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AD7658BSTZ датащи(PDF) 16 Page - Analog Devices

номер детали AD7658BSTZ
подробное описание детали  250 kSPS, 6-Channel, Simultaneous Sampling, Bipolar 16-/14-/12-Bit ADC
PDF  32 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD7658BSTZ датащи(HTML) 16 Page - Analog Devices

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AD7656/AD7657/AD7658
Data Sheet
Rev. D | Page 16 of 32
–55
125
TEMPERATURE (°C)
–35
–15
5
25
45
65
85
105
2.492
2.494
2.496
2.498
2.500
2.502
2.504
2.506
2.508
2.510
AVCC/DVCC/VDRIVE = +5V
VDD/VSS = ±12V
Figure 16. Reference Voltage vs. Temperature
3.20
2.70
–55
125
TEMPERATURE (°C)
3.15
3.10
3.05
3.00
2.95
2.90
2.85
2.80
2.75
–35
–15
5
25
45
65
85
105
AVCC/DVCC/VDRIVE = +5V
VDD/VSS = ±12V
Figure 17. Conversion Time vs. Temperature
3500
–5
CODE
3
3000
2500
2000
1500
1000
500
–4
–3
–2
–1
0
1
2
VDD/VSS = ±15V
AVCC/DVCC/VDRIVE = +5V
INTERNAL REFERENCE
8192 SAMPLES
25
168
1532
3212
2806
392
57
0
0
0
Figure 18. AD7656 Histogram of Codes
100
40
30
530
SUPPLY RIPPLE FREQUENCY (kHz)
90
80
70
60
50
80
130
180
230
280
330
380
430
480
VDD
VSS
fSAMPLE = 250kSPS
±2 × VREF RANGE
INTERNAL REFERENCE
TA = 25°C
fIN = 10kHz
100nF ON VDD AND VSS
Figure 19. PSRR vs. Supply Ripple Frequency
–40
140
TEMPERATURE (°C)
–20
0
20
40
60
80
100
120
83.0
83.5
84.0
84.5
85.0
85.5
86.0
86.5
87.0
±5V RANGE,
AVCC/DVCC/VDRIVE = +5V
VDD/VSS = ±12V
fSAMPLE = 250kSPS
fIN = 50kHz
INTERNAL REFERENCE
±10V RANGE,
AVCC/DVCC/VDRIVE = +5.25V
VDD/VSS = ±16.5V
Figure 20. AD7656 SNR vs. Temperature
–100
–107
–40
140
TEMPERATURE (°C)
–101
–102
–103
–104
–105
–106
–20
0
20
40
60
80
100
120
±10V RANGE,
AVCC/DVCC/VDRIVE = +5.25V
VDD/VSS = ±16.5V
±5V RANGE,
AVCC/DVCC/VDRIVE = +5V
VDD/VSS = ±12V
fSAMPLE = 250kSPS
fIN = 50kHz
INTERNAL REFERENCE
Figure 21. AD7656 THD vs. Temperature



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