Datasheet

9
®
INA134/2134
FIGURE 5. High Input Impedance Instrumentation Amplifier.
V
1
V
2
5
6
1
3
V
0
= V
1
+ V
2
INA134
2
FIGURE 3. Precision Summing Amplifier.
FIGURE 4. Boosting Output Current.
The difference amplifier is a highly versatile building
block that is useful in a wide variety of applications. See
the INA105 data sheet for additional applications ideas,
including:
• Current Receiver with Compliance to Rails
• Precision Unity-Gain Inverting Amplifier
• ±10V Precision Voltage Reference
• ±5V Precision Voltage Reference
• Precision Unity-Gain Buffer
• Precision Average Value Amplifier
• Precision G = 2 Amplifier
• Precision Summing Amplifier
• Precision G = 1/2 Amplifier
• Precision Bipolar Offsetting
• Precision Summing Amplifier with Gain
• Instrumentation Amplifier Guard Drive Generator
• Precision Summing Instrumentation Amplifier
• Precision Absolute Value Buffer
• Precision Voltage-to-Current Converter with Differential
Inputs
• Differential Input Voltage-to-Current Converter for Low
I
OUT
• Isolating Current Source
• Differential Output Difference Amplifier
• Isolating Current Source with Buffering Amplifier for
Greater Accuracy
• Window Comparator with Window Span and Window
Center Inputs
• Precision Voltage-Controlled Current Source with Buff-
ered Differential Inputs and Gain
• Digitally Controlled Gain of ±1 Amplifier
5
6
3
INA134
2
1
V
0

0utput
V
1
1/2
OPA2134
1/2
OPA2134
R
2
R
2
R
1
–In
V
2
+In
V
O
= (1 + 2R
2
/R
1
) (V
2
–V
1
)
BUF634
+In
–In
5
6
1
63
3
V
O
INA134
2