參數(shù)資料
型號: ADS1225IRGVTG4
廠商: Analog Devices, Inc.
英文描述: 24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Internal Oscillator
中文描述: 24位模擬數(shù)字轉換器與單和雙通道差分輸入和內部振蕩器
文件頁數(shù): 3/24頁
文件大?。?/td> 398K
代理商: ADS1225IRGVTG4
www.ti.com
ELECTRICAL CHARACTERISTICS
All specifications at T
A
= –40
°
C to +105
°
C, AVDD = +5V, DVDD = +3V, and V
REF
= +5V, unless otherwise noted.
ADS1225
ADS1226
SBAS346–MAY 2006
ADS1225, ADS1226
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Analog Input
Full-scale input voltage
AINP – AINN
±
V
REF
V
Buffer off; AINP, AINN with respect to GND
GND – 0.1
AVDD + 0.1
V
Absolute input voltage
Buffer on; AINP, AINN with respect to GND
GND + 0.05
AVDD – 1.5
V
Buffer off
2
M
G
M
Differential input impedance
Buffer on
1
Common-mode input impedance
Buffer off
4
System Performance
Resolution
24
Bits
High-Speed mode
75
100
125
SPS
(1)
Data rate
High-Resolution mode
12
16
22
SPS
(1)
Integral nonlinearity (INL)
End-point fit
0.0005
0.0020
% of FSR
(2)
Offset error
60
200
μ
V
Offset error drift
0.3
μ
V/
°
C
%
Gain error
0.004
0.025
Gain error drift
0.3
ppm/
°
C
dB
Common-mode rejection
At DC
85
95
Analog power-supply rejection
At DC, ± 10%
in AVDD
At DC, DVDD = 2.7V to 5.5V
95
dB
Digital power-supply rejection
80
dB
ppm of FSR,
rms
High-Speed mode
1.5
Noise
ppm of FSR,
rms
High-Resolution mode
0.4
Temperature Sensor
Temperature sensor voltage
T
A
= +25
°
C
106
mV
Temperature sensor coefficient
360
μ
V/
°
C
Voltage Reference Input
Reference input voltage
V
REF
= VREFP – VREFN
0.5
5
AVDD
V
Negative reference input
GND - 0.1
VREFP – 0.5
V
Positive reference input
VREFN + 0.5
AVDD + 0.1
V
Voltage reference impedance
1.5
M
(1)
(2)
SPS = samples per second.
FSR = full-scale range = 2
×
V
REF
.
3
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ADS1226 24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Internal Oscillator
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參數(shù)描述
ADS1226 制造商:AD 制造商全稱:Analog Devices 功能描述:24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Internal Oscillator
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ADS1226IRGVRG4 功能描述:模數(shù)轉換器 - ADC 24-Bit ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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ADS1226IRGVT 制造商:Texas Instruments 功能描述:A/D Converter (A-D) IC