參數(shù)資料
型號: AD7689
廠商: Analog Devices, Inc.
英文描述: 16-Bit, 8-Channel, 250 kSPS PulSAR㈢ ADC.
中文描述: 16位,8通道,250 kSPS的PulSAR系列㈢ADC的。
文件頁數(shù): 4/20頁
文件大?。?/td> 2041K
代理商: AD7689
AD7689
Preliminary Technical Data
VDD = 2.5 V to 5.5 V, VIO = 2.3 V to VDD, V
REF
= VDD, all specifications T
MIN
to T
MAX
, unless otherwise noted.
Rev. PrC | Page 4 of 20
Table 3.
Parameter
INTERNAL REFERENCE
Output Voltage
Temperature Drift
Line Regulation
Long-Term Drift
Turn-On Settling Time
EXTERNAL REFERENCE
Voltage Range
Current Drain
TEMPERATURE SENSOR
Output Voltage
1
Temperature Sensitivity
DIGITAL INPUTS
Logic Levels
V
IL
V
IH
I
IL
I
IH
DIGITAL OUTPUTS
Data Format
2
Pipeline Delay
3
V
OL
V
OH
POWER SUPPLIES
VDD
VIO
VIO Range
Standby Current
4, 5
Power Dissipation
Conditions/Comments
For 4.096 V output, @ 25°C
For 2.5 V output, @ 25°C
–40°C to +85°C
VDD = 5 V ± 5%
1000 hours
C
REF
= 22 μF
REF Input
REFIN Input (Buffered)
250 kSPS, REF = 5V
@ 25°C
I
SINK
= +500 μA
I
SOURCE
= 500 μA
Specified performance
Specified performance
VDD and VIO = 5 V, 25°C
VDD = 5V , 100 kSPS throughput
VDD = 5V , 250 kSPS throughput
VDD = 5V , 250 kSPS throughput
internal reference and buffer
enabled
T
MIN
to T
MAX
Min
4.086
2.490
0.5
0.5
0.3
0.7 × VIO
1
1
VIO 0.3
2.3
2.3
1.8
Typ
4.096
2.500
±TBD
±TBD
50
TBD
50
283
1
1
6
15
18.5
Max
4.106
2.510
VDD + 0.3
4.096
+0.3 × VIO
VIO + 0.3
+1
+1
0.4
5.5
VDD + 0.3
VDD + 0.3
50
Unit
V
V
ppm/°C
ppm/V
ppm
ms
V
V
μA
mV
mV/°C
V
V
μA
μA
V
V
V
V
V
nA
mW
mW
mW
Energy per Conversion
TEMPERATURE RANGE
6
Specified Performance
1
The output voltage is internal and present on a dedicated multiplexer input.
2
Unipolar mode: serial 16-bit straight binary
Bipolar mode: serial 16-bit 2’s complement.
3
Conversion results available immediately after completed conversion.
4
With all digital inputs forced to VIO or GND as required.
5
During acquisition phase.
6
Contact an Analog Devices sales representative for the extended temperature range.
40
50
+85
nJ
°C
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