Datasheet

V
BIAS1
Class AB
Control
Circuitry
V
BIAS2
V +
IN
V+
V-
V -
IN
V
O
Tail
Current
OPA1652
OPA1654
www.ti.com SBOS477 –DECEMBER 2011
APPLICATION INFORMATION
applications do not require equal positive and
The OPA1652 and OPA1654 are unity-gain stable,
negative output voltage swing. With the OPA165x
precision dual and quad op amps with very low noise.
series, power-supply voltages do not need to be
Applications with noisy or high-impedance power
equal. For example, the positive supply could be set
supplies require decoupling capacitors close to the
to +25 V with the negative supply at –5 V.
device pins. In most cases, 0.1-μF capacitors are
adequate. Figure 35 shows a simplified schematic of In all cases, the common-mode voltage must be
the OPA165x (one channel shown). maintained within the specified range. In addition, key
parameters are assured over the specified
temperature range of T
A
= –40°C to +85°C.
OPERATING VOLTAGE
Parameters that vary significantly with operating
The OPA165x series op amps operate from ±2.25 V
voltage or temperature are shown in the Typical
to ±18 V supplies while maintaining excellent
Characteristics.
performance. The OPA165x series can operate with
as little as +4.5V between the supplies and with up to
+36 V between the supplies. However, some
Figure 35. OPA165x Simplified Schematic
Copyright © 2011, Texas Instruments Incorporated 11
Product Folder Link(s): OPA1652 OPA1654