參數(shù)資料
型號: AD7942BRMRL7
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: 14-Bit, 250 kSPS PulSAR ADC in MSOP/QFN
中文描述: 1-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO10
封裝: MO-187BA, MSOP-10
文件頁數(shù): 23/28頁
文件大小: 633K
代理商: AD7942BRMRL7
AD7942
Preliminary Technical Data
Rev Pr B | Page 4 of 28
Parameter
Conditions
Min
Typ
Max
Unit
VDD = 2.3 V to 5.5 V, VIO = 2.3 V to VDD, VREF = VDD, TA = –40°C to +85°C, unless otherwise noted.
Table 3.
REFERENCE
Voltage Range
0.5
VDD + 0.3
V
Load Current
250 kSPS, REF = 5 V
TBD
A
SAMPLING DYNAMICS
3 dB Input Bandwidth
2
MHz
Aperture Delay
VDD = 5 V
2.5
ns
DIGITAL INPUTS
Logic Levels
VIL
–0.3
0.3 × VIO
V
VIH
0.7 × VIO
VIO + 0.3
V
IIL
1
+1
A
IIH
1
+1
A
DIGITAL OUTPUTS
Data Format
Serial 14 Bits Straight Binary
Pipeline Delay
Conversion Results Available Immediately
after Completed Conversion
VOL
ISINK= +500 A
0.4
V
VOH
ISOURCE= 500 A
VIO 0.3
V
POWER SUPPLIES
VDD
Specified Performance
2.3
5.5
V
VIO
Specified Performance
2.3
VDD + 0.3
V
VIO Range
1.8
VDD + 0.3
V
Standby Current1, 2
VDD and VIO = 5 V, 25°C
1
50
nA
Power Dissipation
VDD = 2.5 V, 100 SPS Throughput
1.15
W
VDD = 2.5 V, 100 kSPS Throughput
1.15
2
mW
VDD = 2.5 V, 200 kSPS Throughput
2.25
4
mW
VDD = 5 V, 100 kSPS Throughput
3.3
5
mW
VDD = 5 V, 250 kSPS Throughput
12.5
mW
TEMPERATURE RANGE3
Specified Performance
TMIN to TMAX
40
+85
°C
1 With all digital inputs forced to VIO or GND as required.
2 During acquisition phase.
3 Contact Analog Devices for extended temperature range.
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