User Federico Russo

62 votes

7 answers

31k views

Why are there teardrops on PCB pads?

asked Apr 18, 2011 at 15:28

53 votes

2 answers

55k views

What's the third wire on a piezo buzzer?

asked Aug 14, 2011 at 10:54

50 votes

5 answers

17k views

Why don't microcontrollers generally have on-chip DACs?

asked Mar 24, 2012 at 9:39

29 votes

5 answers

5k views

Puzzled by Nyquist frequency

asked Jul 20, 2011 at 12:53

28 votes

6 answers

16k views

Is it possible to make illegal clones of an Intel Core i7?

asked Nov 12, 2012 at 8:53

26 votes

3 answers

33k views

What's special about "unity-gain stable"?

asked Aug 29, 2012 at 10:18

25 votes

5 answers

2k views

What are 12.000393 MHz crystals used for?

asked Aug 28, 2012 at 13:06

24 votes

1 answer

54k views

What's input bias current in opamps?

asked Jun 12, 2011 at 13:15

22 votes

4 answers

2k views

Energy in capacitors - loss?

asked Apr 9, 2012 at 8:56

21 votes

1 answer

31k views

What does the "L" in inductance stand for?

asked Apr 9, 2012 at 9:56

21 votes

2 answers

6k views

Why so many pins for the MOSFET's drain?

asked May 24, 2012 at 15:21

21 votes

4 answers

11k views

When is it an instrumentation amplifier (In-Amp) and not an operational amplifier (Op-Amp)?

asked Jun 26, 2011 at 9:55

20 votes

7 answers

26k views

One or two UART stop bits?

asked Apr 15, 2012 at 6:27

19 votes

2 answers

6k views

How do microcontrollers achieve > 1 MIPS/MHz performance?

asked Aug 21, 2012 at 7:17

17 votes

1 answer

14k views

Why shouldn't electrolytic capacitors be short-circuited?

asked Apr 18, 2011 at 14:07

16 votes

3 answers

2k views

Why use LNAs in a noise generator?

asked Jul 21, 2011 at 6:52

16 votes

5 answers

11k views

What are Y5V or Z5U capacitors good for?

asked Oct 6, 2011 at 9:53

16 votes

3 answers

32k views

Difference between current transformers and power transformers

asked May 2, 2012 at 12:25

15 votes

1 answer

4k views

What is ground bounce?

asked Apr 8, 2012 at 17:12

14 votes

2 answers

2k views

How does this transistor work?

asked Aug 20, 2011 at 8:57

13 votes

2 answers

7k views

comparator schematic symbol

asked Sep 3, 2012 at 14:09

12 votes

2 answers

13k views

How thick (or thin) is the die/wafer inside an IC?

asked Dec 16, 2012 at 12:09

12 votes

4 answers

303 views

Is \$I_e = I_c\$ for phototransistors?

asked Feb 8, 2013 at 9:40

12 votes

4 answers

3k views

ARM controllers in small packages

asked Jul 30, 2011 at 9:12

11 votes

2 answers

12k views

How does a Cortex M0 perform compared to 8-bit controllers?

asked Jul 30, 2011 at 11:54

11 votes

2 answers

839 views

Is double-sided mounting still possible with the latest packages?

asked Aug 7, 2011 at 10:51

11 votes

1 answer

1k views

Preferred current flow in relay contacts?

asked Jul 11, 2011 at 8:43

11 votes

4 answers

9k views

What's the function of the diode in this driver connected to a piezo buzzer?

asked Jun 14, 2011 at 17:16

11 votes

1 answer

1k views

What's a current feedback amplifier?

asked May 19, 2012 at 11:07

10 votes

2 answers

3k views

When would you need a low bandwidth opamp?

asked May 19, 2012 at 6:40

Stack Exchange Network

86 Questions

Why are there teardrops on PCB pads?

What's the third wire on a piezo buzzer?

Why don't microcontrollers generally have on-chip DACs?

Puzzled by Nyquist frequency

Is it possible to make illegal clones of an Intel Core i7?

What's special about "unity-gain stable"?

What are 12.000393 MHz crystals used for?

What's input bias current in opamps?

Energy in capacitors - loss?

What does the "L" in inductance stand for?

Why so many pins for the MOSFET's drain?

When is it an instrumentation amplifier (In-Amp) and not an operational amplifier (Op-Amp)?

One or two UART stop bits?

How do microcontrollers achieve > 1 MIPS/MHz performance?

Why shouldn't electrolytic capacitors be short-circuited?

Why use LNAs in a noise generator?

What are Y5V or Z5U capacitors good for?

Difference between current transformers and power transformers

What is ground bounce?

How does this transistor work?

comparator schematic symbol

How thick (or thin) is the die/wafer inside an IC?

Is \$I_e = I_c\$ for phototransistors?

ARM controllers in small packages

How does a Cortex M0 perform compared to 8-bit controllers?

Is double-sided mounting still possible with the latest packages?

Preferred current flow in relay contacts?

What's the function of the diode in this driver connected to a piezo buzzer?

What's a current feedback amplifier?

When would you need a low bandwidth opamp?