Datasheet

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 must be pulled down to V
CC-
. When in shutdown mode, the
amplifiers’ output is in a high impedance state. The SHDN pin must never be left floating,
but tied to V
CC+
or V
CC-
.
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
2 kΩ
Vcc-0.5V
+
-
+Vcc
DUT
GND
GND
2 kΩ
µ
°C
25°
µ