• OPA2140: Heat generation in differential single-ended conversion circuit

  

  Conor

  TI Thinks Resolved

  Part Number: OPA2140 Hi, The differential single-ended conversion circuit using OPA2140AIDGKT is generating heat. I would like you to check the circuit diagram, so is it possible for me to discuss it with you via private message? Thanks, Conor

  • 10 months ago
  • Amplifiers
  • Amplifiers forum

• OPA2140: OPA2140AIDRGR

  

  Genrikh Kleynerman

  Part Number: OPA2140 I asked this question few months ago and the answer was the part will be released in April-May 2022: Is it already released or still in pre-release state?

  • over 2 years ago
  • Amplifiers
  • Amplifiers forum
Answered

• OPA2140: OPA2140AIDRGR

  

  Genrikh Kleynerman

  Resolved

  Part Number: OPA2140 Has the OPA2140AIDRGR been released? based on previously provided info, it was supposed to be released in Nov-2021. there is no info on this part, except a couple of forum messages. can you provide the part's status and availability…

  • Resolved

  • over 2 years ago
  • Amplifiers
  • Amplifiers forum
Answered

• OPA2140: POPA2140AIDRGR

  

  Genrikh Kleynerman

  Resolved

  Part Number: OPA2140 I need OPA2140 dual amp in DRG package. I found POPA2140AIDRGR, however it is not RoHS part. The data sheet advises contact TI on this part. What is part's production status? Is it RoHS part?

  • Resolved

  • over 3 years ago
  • Amplifiers
  • Amplifiers forum
Answered

• OPA2140: OPA2140AIDRGR (POPA2140AIDRGR) Exposed Pad connection (GND/-Vcc/floating?).

  

  Krzysztof Rybacki

  Resolved

  Part Number: OPA2140 The datasheet of OPA2140 does not explain how to connect the Exposed Pad of DRG package (S-PWSON-N8). Should it be connected to the GND potential, -Vcc, or just left floating?

  • Resolved

  • over 2 years ago
  • Amplifiers
  • Amplifiers forum
Answered

• OPA2140: OPA2140AIDGKR baking condition

  

  Koji Sakurai

  Resolved

  Part Number: OPA2140 My customer wants to use OPA2140AIDGKR with baking condition 24hour 125C. Is it acceptable baking condition ? Best Regards Koji Sakurai

  • Resolved

  • over 3 years ago
  • Amplifiers
  • Amplifiers forum

• OPA2140: input current noise

  

  Renan Santos Adriano

  TI Thinks Resolved

  Part Number: OPA2140 Hello Team, My Customer is using the OPA2140 as a positive amplifier for low noise DC source. They do not found any information about input current noise in the datasheet. They did some tests and found out that the noise depends dramatically…

  • over 3 years ago
  • Amplifiers
  • Amplifiers forum

• OPA2210: [Cont] CMRR for a Instrumentation Front End

  

  Hao Jie Chan

  TI Thinks Resolved

  Part Number: OPA2210 Other Parts Discussed in Thread: OPA2140 , INA851 , OPA2828 , PGA855 , OPA140 Tool/software: The previous thread was locked. I stacked another resistor network on OPA2140 feedback, and the CMRR improved. The unit is in uV/V While this…

  • 1 month ago
  • Amplifiers
  • Amplifiers forum

• OPA2210: CMRR for a Instrumentation Front End

  

  Hao Jie Chan

  Part Number: OPA2210 Other Parts Discussed in Thread: OPA2140 , INA849 , INA851 , PGA855 Tool/software: Hi TI, I am using OPA2210 as a discrete instrumentation front end as such: I am evaluating the circuit CMRR, and based on my result, OPA2210 gives a…

  • 3 months ago
  • Amplifiers
  • Amplifiers forum

• OPA2140: OPA2140 has abnormal output current when used V/I conversion

  

  Kailyn Chen

  TI Thinks Resolved

  Part Number: OPA2140 Hello， Our customer used OPA2140 as 0~24mA current source, there is no problem during simulation, but actually, he met a question using PCB to test. 1) single 12V power supply, 0~2V input, and output 0~24mA, there is no problem. …

  • over 4 years ago
  • Amplifiers
  • Amplifiers forum

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