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AD7631 Datasheet(PDF) 5 Page - Analog Devices

Part # AD7631
Description  18-Bit 250/670 kSPS PulSAR Bipolar Programmable Inputs ADC
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7631 Datasheet(HTML) 5 Page - Analog Devices

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Preliminary Technical Data
AD7631/AD7634
Rev. PrC | Page 5 of 14
Parameter
Conditions
Min
Typ
Max
Unit
Operating Current7
PDREF = PDBUF = low
AVDD8
AD7631 @ 250kSPS throughput
8.5
mA
AD7634 @ 670kSPS throughput
21
mA
DVDD
AD7631 @ 250kSPS throughput
3.5
mA
AD7634 @ 670kSPS throughput
7
mA
OVDD
AD7631 @ 250kSPS throughput
0.1
mA
AD7634 @ 670kSPS throughput
0.2
mA
VCC
AD7631 @ 250kSPS throughput
1
mA
VEE
AD7631 @ 250kSPS throughput
0.6
mA
VCC
AD7634 @ 670kSPS throughput
2.8
mA
VEE
AD7634 @ 670kSPS throughput
2
mA
Power Dissipation
With Internal Reference7
AD7631 @ 250kSPS throughput
75
mW
With Internal Reference7
AD7634 @ 670kSPS throughput
190
Without Internal Reference
AD7631 @ 250kSPS throughput
62
mW
Without Internal Reference7
AD7634 @ 670kSPS throughput
160
mW
In Power-Down Mode9
PD = high
2
μW
TEMPERATURE RANGE10
Specified Performance
TMIN to TMAX
−40
+85
°C
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.
10Consult sales for extended temperature range.


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