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EVAL-AD7621CB View Datasheet(PDF) - Analog Devices

Part Name
Description
MFG CO.
EVAL-AD7621CB
ADI
Analog Devices ADI
'EVAL-AD7621CB' PDF : 32 Pages View PDF
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AD7621
Parameter
Turn-On Settling Time
REFBUFIN Output Voltage
REFBUFIN Output Resistance
EXTERNAL REFERENCE
Voltage Range
Current Drain
REFERENCE BUFFER
REFBUFIN Input Voltage Range
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
OVDD
Power Dissipation11
With Internal Reference10
Without Internal Reference10
With Internal Reference 12
Without Internal Reference12
In Power-Down Mode13
TEMPERATURE RANGE14
Specified Performance
Conditions
Min
CREF = 10 μF
REFBUFIN @ 25°C
PDREF = PDBUF = high
REF
1.8
3 MSPS throughput
PDREF = high, PDBUF = low
1.05
@ 25°C
–0.3
1.7
–1
–1
Typ Max
5
1.2
6.33
2.048 AVDD
250
1.2 1.30
273
0.85
4.7
+0.6
5.25
+1
+1
ISINK = 500 μA
ISOURCE = –500 μA
3 MSPS throughput
With internal reference
3 MSPS throughput
3 MSPS throughput
1.25 MSPS throughput
1.25 MSPS throughput
PD = high
TMIN to TMAX
0.4
OVDD − 0.3
2.37
2.37
2.309
–40
2.5 2.63
2.5 2.63
3.6
25.2
3.6
1
70 86
65 80
42 55
37 50
600
+85
1 When using an external reference. With the internal reference, the input range is −0.1 V to VREF.
2 See the Analog Inputs section.
3 Linearity is tested using endpoints, not best fit. Tested with an external reference at 2.048 V.
4 LSB means least significant bit. With the ±2.048 V input range, 1 LSB is 62.5 μV.
5 See the 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 FSR. Tested with an input signal at 0.5 dB below full-scale, unless otherwise specified.
7 Parallel or serial 16-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 In impulse mode. Tested in parallel reading mode.
13 With all digital inputs forced to OVDD.
14 Consult factory for extended temperature range.
Unit
ms
V
kΩ
V
μA
V
mV
mV/°C
kΩ
V
V
μA
μA
V
V
V
V
V
mA
mA
mA
mW
mW
mW
mW
μW
°C
Rev. A | Page 4 of 32
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