1. Signal Conditioning

2. Sensor Outputs

3. 4-20 mA Analog electrical transmission standard
Signal is a current loop where 4 mA represents zero percent signal and 20 mA represents the one hundred percent signal.
The "live zero" at 4 mA allows the receiving instrumentation to distinguish between a zero signal and a broken wire or a dead instrument and provides good noise immunity.
The live zero also allows low-power instruments to be directly powered from the loop.

4. Simple Control System

5. Typical Sensor Resistances

6. Typical Bridge Amplifier

7. Typical Force-type Transducers

8. High-Impedance Sensors

9. Photodiode Operating Modes

10. Dynamic Range of Illumination

11. Use of a Guard Conductor

12. 40 dB Gain Piezoelectric Amp

13. Professional Microphone Preamp

14. Balanced Transmission Circuit

15. Differential Line Driver

16. NTSC Video Signal

17. NTSC Signal Generation

18. NTSC and PAL Comparison

19. Wide-Bandwidth Video Amplifier