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參數資料
| 型號： | AD7641BCPZRL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 18-Bit 250/670 kSPS PulSAR Bipolar Programmable Inputs ADC |
| 中文描述： | 1-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, QCC48 |
| 封裝： | 7 X 7 MM, LEAD FREE, MO-220VKKD-2, LFCSP-48 |
| 文件頁數： | 5/14頁 |
| 文件大小： | 192K |
| 代理商： | AD7641BCPZRL |
Preliminary Technical Data
AD7631/AD7634
Parameter
Operating Current
7
AVDD
8
DVDD
OVDD
VCC
VEE
VCC
VEE
Power Dissipation
With Internal Reference
7
With Internal Reference
7
Without Internal Reference
Without Internal Reference
7
In Power-Down Mode
9
TEMPERATURE RANGE
10
Specified Performance
1
The inputs are differential anti-phase. Refer to the
Error! Reference source not found.
section.
2
Linearity is tested using endnotes, not best fit.
3
LSB means least significant bit. With the 0 to 5V input range, 1 LSB 38.15μV.
4
All specifications in dB are referred to a full-scale input FSR. Tested with an input signal at 0.5 dB below full-scale, unless otherwise specified.
5
Parallel or serial 18-bit.
6
Conversion results are available immediately after completed conversion.
7
Tested in parallel reading mode.
8
With internal reference, PDREF and PDBUF are low; without internal reference, PDREF and PDBUF are high.
9
With all digital inputs forced to OVDD.
10
Consult sales for extended temperature range.
Rev. PrC | Page 5 of 14
Conditions
PDREF = PDBUF = low
AD7631 @ 250kSPS throughput
AD7634 @ 670kSPS throughput
AD7631 @ 250kSPS throughput
AD7634 @ 670kSPS throughput
AD7631 @ 250kSPS throughput
AD7634 @ 670kSPS throughput
AD7631 @ 250kSPS throughput
AD7631 @ 250kSPS throughput
AD7634 @ 670kSPS throughput
AD7634 @ 670kSPS throughput
AD7631 @ 250kSPS throughput
AD7634 @ 670kSPS throughput
AD7631 @ 250kSPS throughput
AD7634 @ 670kSPS throughput
PD = high
T
MIN
to T
MAX
Min
40
Typ
8.5
21
3.5
7
0.1
0.2
1
0.6
2.8
2
75
190
62
160
2
Max
+85
Unit
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mW
mW
mW
μW
°C
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