4Ch 12bit DAC on PSoC

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
YongseokJeon
Level 4
Level 4
Distributor
50 replies posted 50 questions asked 25 replies posted

Hello.

I need an individually controllable 4-Channel 12bit DAC output.

It seems that only PSoC5800/5600 supports 4 x DAC. But it supports 8bit DAC.

1. Could you recommend the product?

2. Does PSoC4 or PSoC6 suport 4Ch DAC?

3. If I have to use 4 x 8bit DAC, do you recommend PSoC5 for this feature?

Thanks and Regards.

0 Likes
1 Solution
Vasanth
Moderator
Moderator
Moderator
250 sign-ins 500 solutions authored First question asked

Hi,

PSoC 4 has an 8 bit DACs and a 7 bit DACs( PSoC4200 family has one 8bit DAC and one 7 bit DACs,PSoC4000S series has two 7 bit DACs). PSoC6 has one 12 bit DAC. PSoC5LP family has four 8 bit DACs. 

1. So there are no PSoCs with four 12 bit DACs. If you want 4 channels PSoC5 might be the closest option.

2. Both of them does not have 4 channels.

3. PSoC5LP is the one seems to be closer to your requirement.

Best Regards,
Vasanth

View solution in original post

0 Likes
3 Replies
Vasanth
Moderator
Moderator
Moderator
250 sign-ins 500 solutions authored First question asked

Hi,

PSoC 4 has an 8 bit DACs and a 7 bit DACs( PSoC4200 family has one 8bit DAC and one 7 bit DACs,PSoC4000S series has two 7 bit DACs). PSoC6 has one 12 bit DAC. PSoC5LP family has four 8 bit DACs. 

1. So there are no PSoCs with four 12 bit DACs. If you want 4 channels PSoC5 might be the closest option.

2. Both of them does not have 4 channels.

3. PSoC5LP is the one seems to be closer to your requirement.

Best Regards,
Vasanth

0 Likes
pacr_284376
Level 5
Level 5
100 replies posted 10 solutions authored 50 sign-ins

Depending on you application and accuracy, you could

- Change DAC voltage span for lower voltage signals

- Switch fast between 2 DAC values to get the value in-between with a hardware filter behind it

- Use a PWM-output with a hardware filter behind it

- When using current DACs, you can use 2 or more DACs in parallel

 

See application note 

AN64275 - PSoC® 3 and PSoC 5LP: Getting More Resolution from 8-Bit DACs

 

0 Likes
odissey1
Level 9
Level 9
First comment on KBA 1000 replies posted 750 replies posted

Use external dac, for example

Adafruit MCP4728 Quad DAC 

0 Likes