4.8千赫兹超低噪声, 24位Σ- Δ型ADC PGA 4.8 kHz Ultralow Noise 24-Bit Sigma-Delta ADC with PGA
GENERAL DESCRIPTION
The AD7190 is a low noise, complete analog front end for high precision measurement applications. It contains a low noise, 24-bit sigma-delta ∑-Δ analog to digital converter ADC. The on-chip low noise gain stage means that signals of small amplitude can be interfaced directly to the ADC.
FEATURES
RMS noise: 8.5 nV @ 4.7 Hz gain = 128
16 noise free bits @ 2.4 kHz gain = 128
Up to 22.5 noise free bits gain = 1
Offset drift: 5 nV/°C
Gain drift: 1 ppm/°C
Specified drift over time
2 differential/4 pseudo differential input channels
Automatic channel sequencer
Programmable gain 1 to 128
Output data rate: 4.7 Hz to 4.8 kHz
Internal or external clock
Simultaneous 50 Hz/60 Hz rejection
4 general-purpose digital outputs
Power supply
AVDD: 4.75 V to 5.25 V
DVDD: 2.7 V to 5.25 V
Current: 6 mA
Temperature range: –40°C to +105°C
Interface
3-wire serial
SPI, QSPI™, MICROWIRE™, and DSP compatible
Schmitt trigger on SCLK
APPLICATIONS
Weigh scales
Strain gauge transducers
Pressure measurement
Temperature measurement
电路数 1
通道数 5
位数 24
耗散功率 36.8 mW
采样率 4.8 ksps
分辨率Bits 24.0
模数转换数ADC 1
输入数 2, 4
工作温度Max 105 ℃
工作温度Min -40 ℃
耗散功率Max 36.8 mW
输入通道数 2, 4
安装方式 Surface Mount
引脚数 24
封装 TSSOP-24
长度 7.8 mm
宽度 4.4 mm
高度 1.05 mm
封装 TSSOP-24
工作温度 -40℃ ~ 105℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
军工级 No
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
AD7190BRUZ-REEL ADI 亚德诺 | 当前型号 | 当前型号 |
AD7190WBRUZ-RL 亚德诺 | 完全替代 | AD7190BRUZ-REEL和AD7190WBRUZ-RL的区别 |
AD7190BRUZ 亚德诺 | 类似代替 | AD7190BRUZ-REEL和AD7190BRUZ的区别 |
AD7190WBRUZ 亚德诺 | 类似代替 | AD7190BRUZ-REEL和AD7190WBRUZ的区别 |