参数资料
型号: EVAL-AD7194EBZ
厂商: Analog Devices Inc
文件页数: 55/57页
文件大小: 0K
描述: EVAL BOARD FOR AD7194
设计资源: EVAL-AD7zzzEBZ Schematic
AD7194 Gerber Files
标准包装: 1
ADC 的数量: 1
位数: 24
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
工作温度: -40°C ~ 105°C
已用 IC / 零件: AD7194
已供物品: 板,线缆
AD7194
Data Sheet
Rev. A | Page 6 of 56
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments1
SYSTEM CALIBRATION2
Full-Scale Calibration Limit
1.05 × FS
V
Zero-Scale Calibration
Limit
1.05 × FS
V
Input Span
0.8 × FS
2.1 × FS
V
POWER REQUIREMENTS7
Power Supply Voltage
AVDD AGND
3
5.25
V
DVDD DGND
2.7
5.25
V
Power Supply Currents
AIDD Current
0.85
1.1
mA
Gain = 1, buffer off
1
1.35
mA
Gain = 1, buffer on
2.8
3.6
mA
Gain = 8, buffer off
3.2
3.85
mA
Gain = 8, buffer on
3.8
4.7
mA
Gain = 16 to 128, buffer off
4.3
5.3
mA
Gain = 16 to 128, buffer on
DIDD Current
0.35
0.4
mA
DVDD = 3 V
0.5
0.6
mA
DVDD = 5 V
1.5
mA
External crystal used
IDD
3
A
Power-down mode
1
Temperature range: 40°C to +105°C.
2
Specification is not production tested, but is supported by characterization data at initial product release.
3
FS[9:0] is the decimal equivalent of Bit FS9 to Bit FS0 in the mode register.
4
Following a system or internal zero-scale calibration, the offset error is in the order of the noise for the programmed gain and output data rate selected. A system
full-scale calibration reduces the gain error to the order of the noise for the programmed gain and output data rate.
5
The analog inputs are configured for differential mode.
6
REJ60 is a bit in the mode register. When the first notch of the sinc filter is at 50 Hz, a notch is placed at 60 Hz when REJ60 is set to 1. This gives simultaneous
50 Hz/60 Hz rejection.
7
Digital inputs equal to DVDD or DGND.
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