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AD7623AST Datasheet(PDF) 5 Page - Analog Devices

Part # AD7623AST
Description  16-Bit, 1.33 MSPS PulSAR ADC
PDF  29 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7623AST Datasheet(HTML) 5 Page - Analog Devices

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AD7623
Rev. 0 | Page 4 of 28
Parameter
Conditions
Min
Typ
Max
Unit
EXTERNAL REFERENCE
PDREF = PDBUF = high
Voltage Range
REF
1.8
2.048
AVDD
V
Current Drain
1.33 MSPS throughput
100
μA
REFERENCE BUFFER
PDREF = high, PDBUF = low
REFBUFIN Input Voltage Range
1.05
1.2
1.30
V
TEMPERATURE PIN
Voltage Output
@ 25°C
273
mV
Temperature Sensitivity
0.85
mV/°C
Output Resistance
4.7
kΩ
DIGITAL INPUTS
Logic Levels
VIL
–0.3
+0.6
V
VIH
1.7
5.25
V
IIL
–1
+1
μA
IIH
–1
+1
μA
DIGITAL OUTPUTS
Data Format7
Pipeline Delay8
VOL
ISINK = 500 μA
0.4
V
VOH
ISOURCE = –500 μA
OVDD − 0.3
V
POWER SUPPLIES
Specified Performance
AVDD
2.37
2.5
2.63
V
DVDD
2.37
2.5
2.63
V
OVDD
2.309
3.6
V
Operating Current10
1.33 MSPS throughput
AVDD11
With internal reference
15
mA
DVDD
1.6
mA
OVDD
0.6
mA
Power Dissipation10
With Internal Reference11
1.33 MSPS throughput
50
55
mW
Without Internal Reference11
1.33 MSPS throughput
45
53
mW
In Power-Down Mode12
PD = high
600
μW
TEMPERATURE RANGE13
Specified Performance
TMIN to TMAX
–40
+85
°C
1 When using an external reference. With the internal reference, the input range is from −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 Terminology 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 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.
13 Consult sales for extended temperature range.



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