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INA157UAG4 Datasheet(PDF) 8 Page - Texas Instruments

Part No. INA157UAG4
Description  High-Speed, Precision DIFFERENCE AMPLIFIER
Download  12 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

INA157UAG4 Datasheet(HTML) 8 Page - Texas Instruments

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8
®
INA157
The INA157 can be combined with op amps to form a complete instru-
mentation amplifier with specialized performance characteristics. Burr-
Brown offers many complete high performance IAs. Products with related
performances are shown at the right.
SIMILIAR COMPLETE
A1, A2
FEATURE
BURR-BROWN IAs
OPA227
Low Noise
INA103
OPA129
Ultra Low Bias Current (fA)
INA116
OPA277
Low Offset Drift, Low Noise
INA114, INA128
OPA2134
FET Input (pA)
INA111, INA121
FIGURE 6. Boosting Output Current.
FIGURE 5. Precision Instrumentation Amplifier.
FIGURE 4. Precision Summing Amplifier.
V
1
V
2
5
6
1
3
V
0 = 2V1 + V2
INA157
2
6k
6k
12k
12k
5
6
1
3
INA157
2
V
1
V
O
A
2
A
1
R
2
R
2
R
1
–In
V
2
+In
V
O = (1 + 2R2/R1) (V2 –V1)
5
6
1
INA157
BUF634
2
3
V
O
R
L
–In
+In
(Low I
Q mode)
BUF634 inside feedback
loop contributes no error.
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
±10V Precision Voltage Reference
±5V Precision Voltage Reference
• Precision Average Value 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
IOUT
• 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


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