Part Number: LMH6881 Hi All,
Refer to LMH6881 datasheet , single-ended input impedance is about 50 Ω . Actually I use vecter network analyzer to measure the input impedance and found the single-ended input impedance is very low and about 4Ω. I checked…
Part Number: LMH6881 Hello team,
LMH6881 datasheet provides output noise density and input referred noise density information with maximum gain(26dB) condition only.
How can we know or calculate noise density(output or input referred) with different gain…
Part Number: LMH6881 Hello,
We would like to use the LMH6881 differential output to interface to a differential 3.3V STM32 ADC. This would require us to set the common mode output voltage to 1.65V for our desired maximum range. According to the datasheet…
Hello Felix,
I was able to discuss with my colleagues; I do think the overdrive recovery and optical TIA application needs are met by our OPA85X family of parts. If you do still require overdrive recovery data on these LMH parts, do know that with a high…
Part Number: LMH6881 We have cascaded 2 stages of LMH6881. Both Stages have supplies and all control lines with series ferrite beads to provide good isolation. When Gain is increased above 10dB we observe oscillation.
50 Ohms Series resistor is used on…
Hello Tamir,
I appreciate your candor and your feedback. Our customer's time is valuable to us also; while I was not involved in the LMH6881 part or its datasheet, I am taking consideration of your remarks into my involvement in current & future TI HSAMPs…
For the forum: Please see a snippet of the resolution conversation below:
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Hello Sato-san,
This is a differential noise specification. That is correct, it would be noise seen by Vop.
Typical application for characterization follows…
Part Number: LMH6881 Other Parts Discussed in Thread: ADS4128 , OPA657 , TINA-TI Hello,
I use the LMH6881 as the second amplifier and the ADS4128 to sample the data. The schematic is below:
The pulse (pulse width=20ns, pulse period=50ns, tr/tf=2.6ns, Vpp…
Part Number: LMH6881 Other Parts Discussed in Thread: TINA-TI Need the frequency versus gain plot for the above mentioned part number for single ended input signal with input impedance of 50 ohm and supply voltage of 5V.
Thanks in advance
Part Number: LMH6881 Other Parts Discussed in Thread: LMH6321 , PSPICE-FOR-TI , TINA-TI hi TI
Using the lmh6881 simulation model downloaded from the official website, the peripheral input circuit is modified, but the simulated magnification is less than…
