AD7641ACP 데이터 시트보기 (PDF) - Analog Devices
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AD7641ACP Datasheet PDF : 28 Pages
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AD7641
Parameter
Turn-On Settling Time
REFBUFIN Output Voltage
REFBUFIN Output Resistance
EXTERNAL REFERENCE
Voltage Range
Current Drain
REFERENCE BUFFER
REFBUFIN Input Voltage Range
REFBUFIN Input Current
TEMPERATURE PIN
Voltage Output
Temperature Sensitivity
Output Resistance
DIGITAL INPUTS
Logic Levels
VIL
VIH
IIL
IIH
DIGITAL OUTPUTS
Data Format7
Pipeline Delay8
VOL
VOH
POWER SUPPLIES
Specified Performance
AVDD
DVDD
OVDD
Operating Current10
AVDD11
DVDD
OVDD12
Power Dissipation11
With Internal Reference10
Without Internal Reference10
In Power-Down Mode12
TEMPERATURE RANGE13
Specified Performance
Conditions
CREF = 10 μF
REFBUFIN @ 25°C
PDREF = PDBUF = high
REF
2 MSPS throughput
PDREF = high, PDBUF = low
REF = 2.048 V typ
REFBUFIN = 1.2 V
@ 25°C
ISINK = 500 μA
ISOURCE = −500 μA
2 MSPS throughput
With internal reference
2 MSPS throughput
2 MSPS throughput
PD = high
TMIN to TMAX
Min
Typ Max
5
1.19
6.33
1.8
2.048 AVDD + 0.1
180
1.05
1.2
1.30
1
278
1
4.7
−0.3
+0.6
1.7
5.25
−1
+1
−1
+1
0.4
OVDD − 0.3
2.37
2.37
2.309
−40
2.5
2.63
2.5
2.63
3.6
23
2.5
0.5
75
92
68
85
2
+85
1 When using an external reference. With the internal reference, the input range is −0.1 V to VREF.
2 See Analog Inputs section.
3 Linearity is tested using endnotes, not best fit.
4 LSB means least significant bit. With the ±2.048 V input range, 1 LSB is 15.63 μV.
5 See Voltage Reference Input section. These specifications do not include the error contribution from the external reference.
6 All specifications in dB are referred to a full-scale input FS. Tested with an input signal at 0.5 dB below full-scale, unless otherwise specified.
7 Parallel or serial 18-bit.
8 Conversion results are available immediately after completed conversion.
9 See the Absolute Maximum Ratings section.
10 In warp mode. Tested in parallel reading mode.
11 With internal reference, PDREF and PDBUF are low; without internal reference, PDREF and PDBUF are high.
12 With all digital inputs forced to OVDD.
13Consult sales for extended temperature range.
Unit
ms
V
kΩ
V
μA
V
nA
mV
mV/°C
kΩ
V
V
μA
μA
V
V
V
V
V
mA
mA
mA
mW
mW
μW
°C
Rev. 0 | Page 4 of 28
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