Test Conditions/Comments1 SYSTEM CALIBRATION2 Full-" />
參數(shù)資料
型號(hào): AD7192BRUZ
廠商: Analog Devices Inc
文件頁數(shù): 39/41頁
文件大?。?/td> 0K
描述: IC ADC 24BIT 2CH W/PGA 24-TSSOP
產(chǎn)品培訓(xùn)模塊: Weigh Scale Introduction
設(shè)計(jì)資源: Precision Weigh Scale Design Using AD7192 with Internal PGA (CN0119)
標(biāo)準(zhǔn)包裝: 62
位數(shù): 24
采樣率(每秒): 4.8k
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 105°C
安裝類型: 表面貼裝
封裝/外殼: 24-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 24-TSSOP
包裝: 管件
輸入數(shù)目和類型: 2 個(gè)差分,單極;2 個(gè)差分,雙極;4 個(gè)偽差分,單極;4 個(gè)偽差分,雙極
產(chǎn)品目錄頁面: 777 (CN2011-ZH PDF)
AD7192
Rev. A | Page 6 of 40
Parameter
AD7192B
Unit
Test Conditions/Comments1
SYSTEM CALIBRATION2
Full-Scale Calibration Limit
1.05 × FS
V max
Zero-Scale Calibration Limit
1.05 × FS
V min
Input Span
0.8 × FS
V min
2.1 × FS
V max
POWER REQUIREMENTS7
Power Supply Voltage
AVDD AGND
3/5.25
V min/max
DVDD DGND
2.7/5.25
V min/max
Power Supply Currents
AIDD Current
0.6
mA max
0.53 mA typical, gain = 1, buffer off.
0.85
mA max
0.75 mA typical, gain = 1, buffer on.
3.2
mA max
2.5 mA typical, gain = 8, buffer off.
3.6
mA max
3 mA typical, gain = 8, buffer on.
4.5
mA max
3.5 mA typical, gain = 16 to 128, buffer off.
5
mA max
4 mA typical, gain = 16 to 128, buffer on.
DIDD Current
0.4
mA max
0.35 mA typical, DVDD = 3 V.
0.6
mA max
0.5 mA typical, DVDD = 5 V.
1.5
mA typ
External crystal used.
IDD (Power-Down Mode)
3
μA max
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 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 output data rate is set to 50 Hz, setting REJ60 to 1 places a notch at 60 Hz, allowing simultaneous 50 Hz/60 Hz rejection.
7 Digital inputs equal to DVDD or DGND.
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