1. Instrumentation (AMME2700) 1 Instrumentation Dr. Xiaofeng Wu

2. Instrumentation (AMME2700) Sampling Rate

3. Instrumentation (AMME2700) Digital to Analogue Converter: Binary Weighted Resistors R f = R 8R4R2RR VoVo -V REF LSB MSB

4. Instrumentation (AMME2700) Digital to Analogue Converter

5. Instrumentation (AMME2700) Analogue to Digital Converter

6. Instrumentation (AMME2700) Bits and Words

7. Instrumentation (AMME2700) Decimal and Binary Data Conversion Example1: 13.75 Example 2: -12.45 Sign bit Integerfractional

8. Instrumentation (AMME2700) Resolution and Quantization Error

9. Instrumentation (AMME2700) Example  Compute the quantization error for 100mV and 1V analogue signal input using 8-bit and 12-bit A/D converter, both having a full scale range of 0 to 10V. The load cell can measure from 0 to1kg, with a voltage output from 0 to 10mV. If the precision is 1g, please determine the gain needed using 8-bit and 12-bit A/D converter.