OPA1662-Q1 Datasheet, PDF (14/30 Pages) Texas Instruments – Low-Power, Low Noise and Distortion, Bipolar-Input AUDIO OPERATIONAL AMPLIFIERS

OPA1662-Q1
SLOS805B – JULY 2012 – REVISED OCTOBER 2012
www.ti.com
APPLICATION INFORMATION
The OPA1662-Q1 is a unity-gain stable, precision
dual and quad op amp with very low noise.
Applications with noisy or high-impedance power
supplies require decoupling capacitors close to the
device pins. In most cases, 0.1-μF capacitors are
adequate. Figure 43 shows a simplified schematic of
the OPA1662-Q1 (one channel shown).
OPERATING VOLTAGE
The OPA1662-Q1 op amp operates from ±1.5 V to
±18 V supplies while maintaining excellent
performance. The OPA1662-Q1 can operate with as
little as 3 V between the supplies and with up to 36 V
between the supplies. However, some applications do
not require equal positive and negative output voltage
swing. With the OPA1662-Q1 device, power-supply
voltages do not need to be equal. For example, the
positive supply could be set to 25 V with the negative
supply at –5 V.
In all cases, the common-mode voltage must be
maintained within the specified range. In addition, key
parameters are assured over the specified
temperature range of T_A = –40°C to 85°C.
Parameters that vary significantly with operating
voltage or temperature are shown in the Typical
Characteristics.
V+
IN-
IN+
Pre-Output Driver
OUT
V-
Figure 43. OPA1662-Q1 Simplified Schematic
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