Application information

TSV62x

14/25

Doc ID 15689 Rev 2

4.4

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 current consumption

(29 µA typical, min/max at ±17%). Parameters linked to the current consumption value, such

as GBP, SR and AVd 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 = 350 kHz min, SR = 0.12 V/µs min).

4.5

Shutdown function (TSV623, TSV625)

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

output is in a high impedance state. The SHDN pin must never be left floating but tied to

±

200 mV (Figure 18 and Figure 19 show the test configurations).

Figure 18.

Test configuration for turn-on time

(Vout pulled down)

Figure 19.

Test configuration for turn-off time

(Vout pulled down)

Vcc-0.5V

+

-

+Vcc

DUT

GND

GND

Vcc-0.5V

+

-

+Vcc

DUT

GND

GND

Figure 20.

Vout pulled down, T = 25° C

Figure 21.

Vout pulled down, T = 25° C

Shutdown pulse

Vout

Vcc = 5V

T = 25 C

R

L

connected to GND

Time( s)

Shutdown pulse

Vout

Vcc = 5V

T = 25°C

Time( s)