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OPA2234U Datasheet(PDF) 9 Page - Texas Instruments

Part # OPA2234U
Description  Low-Power, Precision SINGLE-SUPPLY OPERATIONAL AMPLIFIERS
PDF  22 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

OPA2234U Datasheet(HTML) 9 Page - Texas Instruments

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OPA234, OPA2234, OPA4234
9
SBOS055B
www.ti.com
QUIESCENT CURRENT AND SHORT-CIRCUIT CURRENT
vs TEMPERATURE
Temperature (
°C)
525
450
375
300
225
150
75
0
70
60
50
40
30
20
10
0
–75
–50
–25
0
25
50
75
100
125
±I
SC
±I
Q
V
S = +2.7V
V
S = +5V
V
S = +2.7V or +5V
V
S = ±15V
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.
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.
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.
FIGURE 1. OPA234 Offset Voltage Trim Circuit.
V+
V–
100k
Ω
OPA234 single op amp only.
Use offset adjust pins only to null
offset voltage of op amp—see text.
Trim Range: ±4mV typ
(V–) = 0V for single supply operation.
OPA234
6
7
5
4
3
2
1
10nF
10nF
TYPICAL CHARACTERISTIC CURVES (Cont.)
At TA = +25°C and RL = 10kΩ, unless otherwise noted.
MAXIMUM OUTPUT VOLTAGE
vs FREQUENCY
100k
Frequency (Hz)
1k
10k
30
25
20
15
10
5
0
V
S = ±2.7V
V
S = +5V
Maximum output voltage
without slew-rate induced
distortion.
V
S = ±15V



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