Hello,
Here's a link to a good design guide for non-inverting amplifier circuits. The LMC662 is a good amp but there are much newer alternatives which perform better for lower costs.
For +1.8V - 5.5V supplies look at the TLV9002 (1MHz) or TLV9062…
Hirotaka-san,
OPAx172 and TLVx172 both have input to input diodes. Yes a difference over 0.5V will cause input flow.
Here is input current measurements (OPA2172) where one input is held at 2V (red current) while the other input (white current) is swept…
Other Parts Discussed in Thread: OPA2172 , OPA172 , OPA1622 , ALM2402-Q1 Hi,
I'm looking for a dual channel Op Amp with 50mA sink and source capability at 70C ambient temperature. Small package size is preferred. The power supply is +3.3V and -3.3V. Output…
Part Number: OPA2171 Other Parts Discussed in Thread: OPA2172 OPA2171 replace ADI AD8662 some issue , 1、If the OPA2171 is the best device replace AD8662 Or other device? 2、the OPA2171 could be VS=±V . the AD8662 is single-ended Valtage ,what is…
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…
"Single-supply" only means that the input common-mode voltage range extends all the way to the negative supply voltage. The OPA1688 and OPA2172 can both be used in single supply or dual supply applications with supply voltages from +4.5V to 36V (single…
Other Parts Discussed in Thread: OPA2172 Hi Guys,
Im trying to simulate using the Spice that can be downloaded directly from the tools and software for this part but it seems to be encrypted, I have downloaded the OPA2172 file, the document had a text…
Dominic,
The only OPA2172 output current limit tested in production is part of the AOL test - see datasheet table below:
Thus with the maximum supply voltage of +/-18V and RL=2k connected to mid-supply (ground), the output, Vout, swings within 0.5V…
The OPA4188 is optimized for great dc performance (very low offset and offset drift) but it’s ac performance is just ok for your needs. Since the application is a band pass filter, you don’t really need good dc performance (the dc offset is essentially…
