Hello Brian,
The term single supply (in the device title) means that input range includes the negative supply rail so that rail can be grounded. It also means that the output range gets close to ground but maybe not all the way. TL3472 VOL is typically…
Mohana,
The biggest issue was that op amp U2 had the power supply connected backwards. It took me over 10 minutes find that one.
The second issue is that the input common mode rejection is poor because the input difference amplifier wasn't balanced. I…
Hao,
The op amps that do not have input to input diodes are designed in a way that the inputs can naturally tolerate large difference such as 15V and 5V. TL3472, OPA2990, and TLV272 are three examples of devices that do not have and do not need input…
User,
Yes, TL082 can be used if Kai's advice is followed. For wider input range with similar performance and 1k/u web price, consider TL3472 or TLV2172 instead.
Part Number: TL082-Q1 Other Parts Discussed in Thread: TL3472-Q1 Hello,
TL082-Q1 has minimum slew rate specification as 8V/us. Is this for rising and falling slew rate? TL3472-Q1 has rising and falling slew rate specifications. If this is only rising slew…
Mike,
Are you sure the first amp is working well? For a robust design, the input pin voltages should be greater than 4V. I'm not sure you have that now.
The output is emitter follower as seen in section 8.2 "Functional block diagram" in the TL082…
Hello Vincent,
The amplifier that I find that comes closest to meeting, or exceeding, the TL3472ICDR electrical specifications is the OPA2172. Its drift is 1.8 uV/deg-C maximum from -40 C to +125 C. The TL3472 has typical drift of 10 uV/ deg-C, over a…
