参数资料
型号: AD7193BRUZ
厂商: Analog Devices Inc
文件页数: 56/57页
文件大小: 0K
描述: IC ADC 24BIT SPI 4.8K 28-TSSOP
产品培训模块: Weigh Scale Introduction
标准包装: 50
位数: 24
采样率(每秒): 4.8k
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
电压电源: 模拟和数字
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 28-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 28-TSSOP
包装: 管件
输入数目和类型: 4 个差分,单极;4 个差分,双极;8 个伪差分,单极;8 个伪差分,双极
产品目录页面: 777 (CN2011-ZH PDF)
Data Sheet
AD7193
Rev. D | Page 7 of 56
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments1
Data Output Coding
Offset binary
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
mA
Gain = 1, buffer off
1
1.25
mA
Gain = 1, buffer on
2.8
3.6
mA
Gain = 8, buffer off
3.2
3.9
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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