The AD7195 is a low noise, complete analog front end suitable for high precision measurement applications. It integrates a low noise, 24-bit Σ-Δ analog-to-digital converter (ADC). The on-chip low noise gain stage enables direct input of small signals. The AD7195 also features built-in AC excitation to eliminate induced DC offset voltages in bridge sensors.
The AD7195 is a low noise, 24-bit Sigma-Delta analog-to-digital converter (ADC) designed for high-precision measurement applications. It features an integrated low noise gain stage that allows small signals to be applied directly to the input. The device includes built-in AC excitation to eliminate induced DC offset voltages in bridge sensors. It supports two digital filter options, multiple input channel configurations, and programmable gain, making it suitable for applications such as electronic scales, pressure measurement, temperature measurement, chromatography, and medical instruments. This manual is written in Chinese.
| Root Mean Square Noise | 8.5 nV |
|---|---|
| No Noise Resolution | 16-bit |
| Supply Voltage AVDD | 4.75 V to 5.25 V |
| Supply Voltage DVDD | 2.7 V to 5.25 V |
| Operating Temperature Range | -40°C to +105°C |
| Package | 32-lead LFCSP |
| Output Data Rate | 4.7 Hz to 4.8 kHz |
The AD7195 is a 24-bit Sigma-Delta ADC.
The typical root mean square noise is 8.5 nV at 4.7 Hz with a gain of 128.