Datasheet

Application information
TSV632, TSV632A, TSV633, TSV633A, TSV634,
TSV634A, TSV635, TSV635A
16/31
DocID15688 Rev 6
4.5 Optimization of DC and AC parameters
These devices use an innovative approach to reduce the spread of the main DC and AC
parameters. An internal adjustment achieves a very narrow spread of the current
consumption (60 µA typical, min/max at ±17 %). Parameters linked to the current
consumption value, such as GBP, SR, and A
vd
, benefit from this narrow dispersion. All
parts present a similar speed and the same behavior in terms of stability. In addition, the
minimum values of GBP and SR are guaranteed (GBP = 730 kHz minimum and
SR = 0.25 V/µs minimum).
4.6 Driving resistive and capacitive loads
These products are micropower, low-voltage, operational amplifiers optimized to drive
rather large resistive loads, above 2 kΩ. For lower resistive loads, the THD level may
significantly increase.
In a follower configuration, these operational amplifiers can drive capacitive loads up to
100 pF with no oscillations. When driving larger capacitive loads, adding an in-series
resistor at the output can improve the stability of the devices (see Figure 22 for
recommended in-series resistor values). Once the in-series resistor value has been
selected, the stability of the circuit should be tested on the bench and simulated with the
simulation model.
Figure 22: In-series resistor vs. capacitive load
4.7 PCB layouts
For correct operation, it is advised to add 10 nF decoupling capacitors as close as possible
to the power supply pins.