Part Number: LM7705 Hello,
LM7705 is a very commonly recommended device with op amps to get true swing to 0V on the output. I was looking for an equivalent automotive device and didn't see one. Is there a good similar or equivalent device to the LM7705…
Part Number: LM7705 Other Parts Discussed in Thread: LM27761
Team,
LM7705 can only source 26mA @ -0.232V.
-Do we have some comparable ICs that can generate the same negative voltage but with higher current? Newer IC like LM27761 do not seem to support…
Part Number: LM7705 Hi, we are using the LM7705 in one of our applications board to generate a negative voltage. We noticed that Vout increases with load. Here is what we get.
0mA Load: Vout = -0.238V 1mA Load: Vout = -0.528V 10mA Load: Vout = -0.682V 20mA…
Part Number: LM7705 Other Parts Discussed in Thread: OPA2991 Hello Everyone I want to know how much current can be handled by a single LM7705 device. I also wanted to know how many OPA2991 op-amps can be connected to a single LM7705. Thank you
Part Number: OPA2836 Other Parts Discussed in Thread: LM7705
Dear TI Engineer: I am using the OPA2836 to amplify a signal (0V~0.04V) 77 times(7*11). To get an accurate 0V voltage, whether I had to offset the amplifier's supply voltage by several hundred…
Part Number: LM7705 When there is no load, a negative voltage is output after a positive voltage is output. When a load (-7mA) was attached to the output, the positive voltage was not output and became a negative voltage.
Does the output voltage of the…
The simplest way is to derive the Vref is by using a resistive divider - no need for another supply. However, it must be buffered with U2 as shown below.
Other than that, you could also use LM7705 (a negative charge pump) to drive the Vref pin.
Hello,
The OPA392 has a very good output swing and can get very close to the supply rail voltage, as you discovered in your testing.
The datasheet specifies the maximum output swing to be 20mV from the rail for a no load condition, and 35mV from the rail…