参数资料
型号: AD7946BRM
厂商: ANALOG DEVICES INC
元件分类: ADC
英文描述: 14-Bit, 500 kSPS PulSAR⑩ ADC in MSOP/QFN
中文描述: 1-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO10
封装: MO-187-BA, MSOP-10
文件页数: 19/24页
文件大小: 637K
代理商: AD7946BRM
AD7946
Rev. A | Page 4 of 24
VDD = 4.5 V to 5.5 V, VIO = 2.3 V to VDD, REF = VDD, TA = 40°C to +85°C, unless otherwise noted.
Table 3.
Parameter
Conditions
Min
Typ
Max
Unit
REFERENCE
Voltage Range
0.5
VDD + 0.3
V
Load Current
500 kSPS, REF = 5 V
100
μA
SAMPLING DYNAMICS
3 dB Input Bandwidth
9
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
μA
IIH
1
+1
μA
DIGITAL OUTPUTS
Data Format
Serial 14-bits straight binary
Pipeline Delay
Conversion results available immediately
after completed conversion
VOL
ISINK = +500 μA
0.4
V
VOH
ISOURCE = 500 μA
VIO 0.3
V
POWER SUPPLIES
VDD
Specified performance
4.5
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 = 5 V, 100 SPS throughput
3.3
μW
VDD = 5 V, 100 kSPS throughput
3.3
3.8
mW
VDD = 5 V, 500 kSPS throughput
19
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 sales for extended the temperature range.
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