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OPA234UA 参数 Datasheet PDF下载

OPA234UA图片预览
型号: OPA234UA
PDF下载: 下载PDF文件 查看货源
内容描述: 低功耗,精密单电源运算放大器 [Low-Power, Precision SINGLE-SUPPLY OPERATIONAL AMPLIFIERS]
分类和应用: 运算放大器
文件页数/大小: 22 页 / 1099 K
品牌: TI [ TEXAS INSTRUMENTS ]
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TYPICAL CHARACTERISTIC CURVES (Cont.)  
At TA = +25°C and RL = 10k, unless otherwise noted.  
MAXIMUM OUTPUT VOLTAGE  
vs FREQUENCY  
QUIESCENT CURRENT AND SHORT-CIRCUIT CURRENT  
vs TEMPERATURE  
30  
25  
20  
15  
10  
5
70  
60  
50  
40  
30  
20  
10  
0
525  
450  
375  
300  
225  
150  
75  
VS = +2.7V  
V
V
V
S = +5V  
S = +2.7V or +5V  
S = ±15V  
VS = ±15V  
Maximum output voltage  
without slew-rate induced  
distortion.  
±IQ  
±ISC  
VS = +5V  
VS = ±2.7V  
0
0
1k  
10k  
Frequency (Hz)  
100k  
75  
50  
25  
0
25  
50  
75  
100  
125  
Temperature (°C)  
APPLICATIONS INFORMATION  
V+  
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  
OPA234 single op amp only.  
Use offset adjust pins only to null  
offset voltage of op ampsee text.  
7
2
6
OPA234  
3
5
OPERATING VOLTAGE  
1
4
10nF  
100kΩ  
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.  
Trim Range: ±4mV typ  
(V) = 0V for single supply operation.  
V–  
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  
9
SBOS055B  
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