LDO for weighing scale for high precision applications

sushma yadav

Prodigy 110 points

Other Parts Discussed in Thread: ADS1232, LM3411, LM4140, LM4132, REF5050, LP2985A

we wants to use LDO or reference circuitry nearby 5v for use with ads1232 for precision weighing scale.

requiring minimum 19-20 stable bits and other application which is requiring 17-18 stable bits with same adc.

could anyone suggest ldo/voltage reference with price *** precision for both applications.

we are thinking for following:-

1. LM3411 FROM TI

2. TPS7A4901 FROM TI

3. LM4140 FROM TI

4. REF195 from analog devices

5. LM4132 FROM TI

6. REF02HPZ from analog devices

7. REF5050 FROM TI

8. lp2985a (5v fixed)

also suggest if any other part is better

over 10 years ago

0 Kartik Sinha over 10 years ago

TI__Expert 3300 points

Sushma,

Please also take a look at the TPS7A35. This is in preview right now will be released by Q4 2013.

Regards,

Kartik

0 sushma yadav over 10 years ago in reply to Kartik Sinha

Prodigy 110 points

thanks for reply kartik but this is presently not available(as you said it is available in Q4) and moreover we are not required 1A current requirements so may be price may be high.

minimum 10mA is Required and better if 15mA or more

could you suggest from the above

0 Kartik Sinha over 10 years ago in reply to sushma yadav

TI__Expert 3300 points

Sushma,

The TPS7A4901 is a good choice and is already used in weighing scale applications by other TI customers.

Regards,

Kartik

0 sushma yadav over 10 years ago in reply to Kartik Sinha

Prodigy 110 points

thanks for reply .

we shall use this and see the results.

Power management

Power management forum

LDO for weighing scale for high precision applications