TSV632, TSV632A, TSV633, TSV633A, TSV634,

TSV634A, TSV635, TSV635A

Application information

DocID15688 Rev 6

15/31

4.4

Shutdown function (TSV633, TSV635)

The operational amplifiers are enabled when the SHDN pin is pulled high. To disable the

amplifiers, the

SHDN

amplifiers’ output is in a high impedance state. The SHDN pin must never be left floating,

The turn-on and turn-off times are calculated for an output variation of ±200 mV. Figure 18

and Figure 19 show the test configurations. Figure 20 shows the time it takes the product to

come out of shutdown mode and Figure 21 shows the time it takes the product to enter

shutdown mode.

Figure 18: Test configuration for turn-on time (Vout

pulled down)

Figure 19: Test configuration for turn-off time (Vout

pulled down)

Figure 20: Turn-on time, VCC = 5 V, Vout pulled down,

T = 25° C

Figure 21: Turn-off time, VCC = 5 V, Vout pulled down,

T = 25° C

Vcc-0.5V

+

-

+Vcc

DUT

GND

GND

Vcc-0.5V

+

-

+Vcc

DUT

GND

GND

µ

°C

25°

µ