OPA1602_1111 Datasheet, PDF (10/28 Pages) Texas Instruments – High-Performance, Bipolar-Input AUDIO OPERATIONAL AMPLIFIERS

OPA1602
OPA1604
SBOS474B – APRIL 2011 – REVISED NOVEMBER 2011
www.ti.com
APPLICATION INFORMATION
The OPA1602 and OPA1604 are unity-gain stable,
precision dual and quad op amps with very low noise.
Applications with noisy or high-impedance power
supplies require decoupling capacitors close to the
device pins. In most cases, 0.1μF capacitors are
adequate. Figure 31 shows a simplified schematic of
the OPA160x (one channel shown).
OPERATING VOLTAGE
The OPA160x series op amps operate from ±2.25V
to ±18V supplies while maintaining excellent
performance. The OPA160x series can operate with
as little as +4.5V between the supplies and with up to
+36V between the supplies. However, some
applications do not require equal positive and
negative output voltage swing. With the OPA160x
series, power-supply voltages do not need to be
equal. For example, the positive supply could be set
to +25V with the negative supply at –5V.
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+
Pre-Output Driver
IN-
IN+
OUT
V-
Figure 31. OPA160x Simplified Schematic
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Product Folder Link(s): OPA1602 OPA1604