Dear Eugenio,
with the Electronics guys in the lab I have set up the scheme of Figure 11 in the OPA552 datasheet correctly, and now it works.
However, we have found out that the slew rate of this opamp is too low for our purposes. This is shown for…
Other Parts Discussed in Thread: DRV8662 , OPA551 , OPA552 , DRV8662EVM , DRV2665 Hello,
I would like to drive a piezo-ceramic element like the SAST-2155 from SONITRON. This transducer has a capacitance of +/- 75 nF and must be operated within the frequency…
Hello,
I'm not sure if a single stage amplifier can achieve all that you are looking for. You may have to cascade two stages (10x followed by 5x for 50x total) or more, and you may need output transistors to handle the voltage.
OPA552 can handle 70V…
1) What power supplies are being used? Check power supply at op amp for ripple amplitude and frequency if any. If power supply is a switching power supply the PSRR of OPA552 can allow power supply ripple across large cap load (22uF) causing high Iq. …
Other Parts Discussed in Thread: OPA548 , OPA547 , BUF634 , OPA454 , OPA452 , TINA-TI , OPA551 , OPA552 , INA169 Hi,
I want to design a constant AC current source of current variable upto 200mA rms.
The frequency of the current source will be from…
Other Parts Discussed in Thread: OPA552 , THS6184 , THS6132 , OPA561 Hi,
I need a fast VCCS that can put out 1.5 A. I was going to use the Cirrus PA09 but for external reasons
I can't use that package/part. I am thinking about using parallel…
Other Parts Discussed in Thread: OPA548 Hello,
I am using "OPA548T-High-Voltage, High-Current Op Amp" to build an amplifier. The Opamp work fine and give the required voltage output (60V AC).
However, the opamp gets heatedup really fast. Do you…
Connecting a capacitor on the output of an op amp can often lead to oscillations instead of the expected response. Also, the amplifier feedback resistors can interact with the amplifier input capacitance causing oscillations. These issues are called op…
The OPA145 also looks like a good choice, this file has not been recently updated so the OPA196 is not in yet, and the pricing is out of date.
OPA111A options.xlsx
