OPA1662
OPA1664
www.ti.com
SBOS489 –DECEMBER 2011
APPLICATION INFORMATION
applications do not require equal positive and
negative output voltage swing. With the OPA166x
series, 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.
The OPA1662 and OPA1664 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, 0.1-μF capacitors are
adequate. Figure 43 shows a simplified schematic of
the OPA166x (one channel shown).
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 TA
= –40°C to +85°C.
OPERATING VOLTAGE
Parameters that vary significantly with operating
voltage or temperature are shown in the Typical
Characteristics.
The OPA166x series op amps operate from ±1.5 V to
±18
V
supplies while maintaining excellent
performance. The OPA166x series can operate with
as little as +3 V between the supplies and with up to
+36
V
between the supplies. However, some
V+
IN-
IN+
Pre-Output Driver
OUT
V-
Figure 43. OPA166x Simplified Schematic
Copyright © 2011, Texas Instruments Incorporated
13
Product Folder Link(s): OPA1662 OPA1664
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