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| OPA1632 Datasheet, PDF (11/30 Pages) Texas Instruments – High-Perfomance, Fully-Differential AUDIO OP AMP | |||
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www.ti.com
Feature Description (continued)
OPA1632
SBOS286C â DECEMBER 2003 â REVISED OCTOBER 2015
VINâ R(g)
VIN+
R(g)
Vs
Rf
VCC+
â+
VO+
+â
VOâ
VOCM
VCCâ
RECOMMENDED RESISTOR VALUES
GAIN
1
2
5
10
R(g) W
390
374
402
402
Rf W
390
750
2010
4020
Rf
Figure 13. Single In With Differential Out
7.4 Device Functional Modes
7.4.1 Shutdown Function
The shutdown (enable) function of the OPA1632 is referenced to the negative supply of the operational amplifier.
A valid logic low (< 0.8 V above negative supply) applied to the enable pin (pin 7) disables the amplifier output.
Voltages applied to pin 7 that are greater than 2 V above the negative supply place the amplifier output in an
active state, and the device is enabled. If pin 7 is left disconnected, an internal pull-up resistor enables the
device. Turn-on and turn-off times are approximately 2 μs each.
Quiescent current is reduced to approximately 0.85 mA when the amplifier is disabled. When disabled, the output
stage is not in a high-impedance state. Thus, the shutdown function cannot be used to create a multiplexed
switching function in series with multiple amplifiers.
Copyright © 2003â2015, Texas Instruments Incorporated
Product Folder Links: OPA1632
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