参数资料
型号: AD7946
厂商: Analog Devices, Inc.
英文描述: 14-Bit, 500 kSPS PulSAR⑩ ADC in MSOP/QFN
中文描述: 14位,500 kSPS的PulSAR系列⑩模数转换器,采用MSOP / QFN封装
文件页数: 22/27页
文件大小: 301K
代理商: AD7946
AD7946
Preliminary Technical Data
Rev Pr D | Page 4 of 27
VDD = 4.5 V to 5.5 V, VIO = 2.3 V to VDD, VREF = 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
TBD
A
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
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
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
W
VDD = 5 V, 100 kSPS Throughput
3.3
5
mW
VDD = 5 V, 500 kSPS Throughput
25
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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