How to calculate, simulate, measure and filter noise in circuits with operational amplifier and with AD converters. Explained by Arthur Kay from Texas Instruments. Thank you Arthur.
Links:
- TI Precision Labs: ADCs https://training.ti.com/ti-precision-labs-adcs?HQS=asc-dcc-padc-null-amb-pp-youtube_feranec_adcs-wwe_int
- TINA-TI analog simulation program https://www.ti.com/tool/TINA-TI?HQS=asc-dcc-padc-null-amb-evm-youtube_feranec_tina-wwe_int
- PSPICE-FOR-TI design and simulation tool
https://www.ti.com/tool/PSPICE-FOR-TI?HQS=asc-dcc-padc-null-amb-evm-youtube_feranec_pspice-wwe_int
- Operational Amplifier Noise book
https://www.amazon.com/Operational-Amplifier-Noise-Techniques-Analyzing/dp/0750685255
- Analog Engineer's Pocket Reference Guide
https://www.ti.com/amplifier-circuit/analog-engineers-pocket-reference-guide.html?HQS=asc-dcc-padc-null-amb-ebook-youtube_feranec-wwe_int
- FEDEVEL courses: https://courses.fedevel.com/
Chapters:
00:00 Operational amplifier noise - Extrinsic and intrinsic
02:59 OP AMP - Filtering intrinsic noise example
04:51 Simulating OPAMP noise - with filter
07:53 Simulating Operational amplifier - no filter
12:49 Simulating OP AMP with smaller resistors but same gain
14:25 Simulation vs reality - comparing noise results
16:36 Simulating OP AMP with EMIRR
20:23 Noise on AD converter
25:55 60Hz ( 50Hz ) noise on AD converter
29:47 About removing noise on AD
34:29 Calculating noise
34:53 Noise in resistors
37:22 Noise spectrum / spectral density
39:48 Adding noises together - equation
40:32 RMS vs. standard deviation
42:43 Noise gaussian distribution, standard deviations
47:32 1/f or flicker noise
49:09 Understanding noise simulation results and graphs
54:46 Understanding Output noise vs. Total noise graph
1:00:06 Calculating OP AMP + ADC noise
1:04:19 OP AMP filters difference
1:06:54 Real example of calculating noise
1:10:58 Does the model used in simulation include noise?
1:14:33 Real example: simulations / calculations vs. real measurements
1:19:24 Converting codes to volts
1:23:07 OPAMP with EMI filter (EMIRR)
1:29:23 Arthur's Book
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