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OPA365 Datasheet, PDF (8/24 Pages) Burr-Brown (TI) – 2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail OPERATIONAL AMPLIFIERS | |||
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OPA365
OPA2365
SBOS365D â JUNE 2006 â REVISED JUNE 2009
APPLICATIONS INFORMATION
OPERATING CHARACTERISTICS
The OPA365 amplifier parameters are fully specified
from +2.2V to +5.5V. Many of the specifications apply
from â40°C to +125°C. Parameters that can exhibit sig-
nificant variance with regard to operating voltage or
temperature are presented in the Typical Characteris-
tics.
GENERAL LAYOUT GUIDELINES
The OPA365 is a wideband amplifier. To realize the full
operational performance of the device, good high-fre-
quency printed circuit board (PCB) layout practices are
required. Low-loss, 0.1µF bypass capacitors must be
connected between each supply pin and ground as
close to the device as possible. The bypass capacitor
traces should be designed for minimum inductance.
BASIC AMPLIFIER CONFIGURATIONS
As with other single-supply op amps, the OPA365 may
be operated with either a single supply or dual supplies.
A typical dual-supply connection is shown in Figure 1,
which is accompanied by a single-supply connection.
The OPA365 is configured as a basic inverting amplifier
with a gain of â10V/V. The dual-supply connection has
an output voltage centered on zero, while the singleâ
supply connection has an output centered on the com-
mon-mode voltage VCM. For the circuit shown, this volt-
age is 1.5V, but may be any value within the common-
mode input voltage range. The OPA365 VCM range
extends 100mV beyond the power-supply rails.
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R1
1kâ¦
VIN
R2
10kâ¦
+1.5V
C1
100nF
V+
OPA365
Vâ
C2
100nF
VOUT
â1.5V
a) Dual Supply Connection
R2
10kâ¦
R1
1kâ¦
VIN
+3V
C1
100nF
V+
OPA365
Vâ
VOUT
VCM = 1.5V
b) SingleâSupply Connection
Figure 1. Basic Circuit Connections
8
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