TYPICAL CHARACTERISTIC CURVES
(Cont.)
At T
A
= +25°C and R
L
= 10kΩ, unless otherwise noted.
MAXIMUM OUTPUT VOLTAGE
vs FREQUENCY
30
25
Output Voltage (Vp-p)
QUIESCENT CURRENT AND SHORT-CIRCUIT CURRENT
vs TEMPERATURE
525
450
V
S
= +2.7V
V
S
= +5V
V
S
= +2.7V or +5V
V
S
=
±15V
±I
Q
70
60
50
40
30
±I
SC
20
10
0
–75
–50
–25
0
25
50
75
100
125
Temperature (°C)
Short-Circuit Current (mA)
20
15
10
5
0
1k
10k
V
S
= +5V
V
S
=
±2.7V
Maximum output voltage
without slew-rate induced
distortion.
Quiescent Current (µA)
V
S
=
±15V
375
300
225
150
75
0
100k
Frequency (Hz)
APPLICATIONS INFORMATION
The OPA234 series op amps are unity-gain stable and
suitable for a wide range of general-purpose applications.
Power-supply pins should be bypassed with 10nF ceramic
capacitors.
10nF
2
3
V+
OPA234 single op amp only.
Use offset adjust pins only to null
offset voltage of op amp—see text.
6
OPA234
5
1
10nF 4
100kΩ
Trim Range: ±4mV typ
(V–) = 0V for single supply operation.
V–
7
OPERATING VOLTAGE
The OPA234 series op amps operate from single (+2.7V to
+36V) or dual (±1.35V to
±18V)
supplies with excellent
performance. Specifications are production tested with +2.7V,
+5V, and
±15V
supplies. Most behavior remains unchanged
throughout the full operating voltage range. Parameters
which vary significantly with operating voltage are shown in
the Typical Characterisitc curves.
FIGURE 1. OPA234 Offset Voltage Trim Circuit.
OFFSET VOLTAGE TRIM
Offset voltage of the OPA234 series amplifiers is laser
trimmed and usually requires no user adjustment. The
OPA234 (single op amp version) provides offset voltage
trim connections on pins 1 and 5. Offset voltage can be
adjusted by connecting a potentiometer, as shown in Fig-
ure 1. This adjustment should be used only to null the offset
of the op amp, not to adjust system offset or offset pro-
duced by the signal source. Nulling offset could degrade
the offset drift behavior of the op amp. While it is not
possible to predict the exact change in drift, the effect is
usually small.
OPA234, OPA2234, OPA4234
SBOS055B
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