10 Instrumentation Amplifiers 7

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Part RoHS Manufacturer Amplifier Type Temperature Grade Terminal Form No. of Terminals Package Code Package Shape Total Dose (V) Package Body Material Nominal Unity Gain Bandwidth Maximum Negative Supply Voltage Limit Maximum Input Offset Voltage Maximum Average Bias Current (IIB) Surface Mount No. of Functions Minimum Common Mode Reject Ratio Technology Screening Level Nominal Common Mode Reject Ratio Maximum Supply Current Nominal Negative Supply Voltage (Vsup) Architecture Programmable Power Packing Method Nominal Supply Voltage / Vsup (V) Power Supplies (V) Package Style (Meter) Package Equivalence Code Maximum Input Offset Current (IIO) Minimum Slew Rate Sub-Category Nominal Slow Rate Maximum Non Linearity Maximum Supply Voltage Limit Terminal Pitch Maximum Operating Temperature Maximum Bias Current (IIB) @25C Maximum Common Mode Voltage Frequency Compensation Minimum Voltage Gain Minimum Operating Temperature Terminal Finish Nominal Voltage Gain Terminal Position Low-Offset JESD-30 Code Maximum Voltage Gain Moisture Sensitivity Level (MSL) Maximum Seated Height Width Qualification Nominal Bandwidth (3dB) JESD-609 Code Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Length

INA327EA/250G4

Texas Instruments

Instrumentation Amplifier

Industrial

Gull Wing

10

TSSOP

Square

Plastic/Epoxy

100 µV

2 nA

Yes

1

100 dB

CMOS

3.7 mA

Tape And Reel

5 V

3/5 V

Small Outline, Thin Profile, Shrink Pitch

TSSOP10,.19,20

2 nA

Instrumentation Amplifiers

0.01 %

5.5 V

0.02 in (0.5 mm)

85 °C (185 °F)

2 nA

0.1

-40 °C (-40 °F)

Nickel Palladium Gold Silver

100

Dual

S-PDSO-G10

1000

2

0.043 in (1.1 mm)

0.118 in (3 mm)

No

1 kHz

e4

30 s

260 °C (500 °F)

0.118 in (3 mm)

AD8271ARMZ-RL

Analog Devices

Instrumentation Amplifier

Industrial

Gull Wing

10

TSSOP

Square

Plastic/Epoxy

-18 V

1.5 mV

500 nA

Yes

1

70 dB

3.2 mA

-5 V

Tape And Reel

5 V

±5/±15 V

Small Outline, Thin Profile, Shrink Pitch

TSSOP10,.19,20

Instrumentation Amplifiers

30 V/us

18 V

0.02 in (0.5 mm)

85 °C (185 °F)

-40 °C (-40 °F)

Matte Tin

Dual

S-PDSO-G10

1

0.043 in (1.1 mm)

0.118 in (3 mm)

No

e3

260 °C (500 °F)

0.118 in (3 mm)

AD8271BRMZ-R7

Analog Devices

Instrumentation Amplifier

Industrial

Gull Wing

10

TSSOP

Square

Plastic/Epoxy

-18 V

1 mV

500 nA

Yes

1

74 dB

3.2 mA

-5 V

Tape And Reel, 7 Inch

5 V

±5/±15 V

Small Outline, Thin Profile, Shrink Pitch

TSSOP10,.19,20

Instrumentation Amplifiers

30 V/us

18 V

0.02 in (0.5 mm)

85 °C (185 °F)

-40 °C (-40 °F)

Matte Tin

Dual

S-PDSO-G10

1

0.043 in (1.1 mm)

0.118 in (3 mm)

No

e3

30 s

260 °C (500 °F)

0.118 in (3 mm)

AD8271BRMZ-RL

Analog Devices

Instrumentation Amplifier

Industrial

Gull Wing

10

TSSOP

Square

Plastic/Epoxy

-18 V

1 mV

500 nA

Yes

1

74 dB

3.2 mA

-5 V

Tape And Reel

5 V

±5/±15 V

Small Outline, Thin Profile, Shrink Pitch

TSSOP10,.19,20

Instrumentation Amplifiers

30 V/us

18 V

0.02 in (0.5 mm)

85 °C (185 °F)

-40 °C (-40 °F)

Matte Tin

Dual

S-PDSO-G10

1

0.043 in (1.1 mm)

0.118 in (3 mm)

No

e3

30 s

260 °C (500 °F)

0.118 in (3 mm)

INA338AIDGSR

Texas Instruments

Instrumentation Amplifier

Automotive

Gull Wing

10

TSSOP

Square

Plastic/Epoxy

140 µV

2 nA

Yes

1

100 dB

CMOS

3.7 mA

5 V

3/5 V

Small Outline, Thin Profile, Shrink Pitch

TSSOP10,.19,20

2 nA

Instrumentation Amplifiers

0.01 %

5.5 V

0.02 in (0.5 mm)

125 °C (257 °F)

0.1

-40 °C (-40 °F)

100

Dual

S-PDSO-G10

10000

0.042 in (1.07 mm)

0.118 in (3 mm)

No

1 kHz

0.118 in (3 mm)

INA338AIDGST

Texas Instruments

Instrumentation Amplifier

Automotive

Gull Wing

10

TSSOP

Square

Plastic/Epoxy

100 µV

2 nA

Yes

1

106 dB

CMOS

3.7 mA

Tape And Reel

5 V

3/5 V

Small Outline, Thin Profile, Shrink Pitch

TSSOP10,.19,20

2 nA

Instrumentation Amplifiers

0.01 %

5.5 V

0.02 in (0.5 mm)

125 °C (257 °F)

2 nA

0.1

-40 °C (-40 °F)

Nickel Palladium Gold Silver

100

Dual

S-PDSO-G10

1000

2

0.042 in (1.07 mm)

0.118 in (3 mm)

No

1 kHz

e4

30 s

260 °C (500 °F)

0.118 in (3 mm)

INA338AIDGSRG4

Texas Instruments

Instrumentation Amplifier

Automotive

Gull Wing

10

TSSOP

Square

Plastic/Epoxy

140 µV

2 nA

Yes

1

100 dB

CMOS

3.7 mA

5 V

3/5 V

Small Outline, Thin Profile, Shrink Pitch

TSSOP10,.19,20

2 nA

Instrumentation Amplifiers

0.01 %

5.5 V

0.02 in (0.5 mm)

125 °C (257 °F)

0.1

-40 °C (-40 °F)

100

Dual

S-PDSO-G10

10000

0.042 in (1.07 mm)

0.118 in (3 mm)

No

1 kHz

0.118 in (3 mm)

Instrumentation Amplifiers

An instrumentation amplifier is an electronic circuit that amplifies small differential voltages to produce a larger output voltage signal. The main purpose of an instrumentation amplifier is to provide a high-precision and stable amplification of small signals while rejecting any common-mode noise or interference.

An instrumentation amplifier consists of three operational amplifiers (op-amps) and precision resistors. The first two op-amps are used as buffer amplifiers, and the third op-amp is used as a differential amplifier. The input signals are applied to the buffer amplifiers, which provide high input impedance and low output impedance to minimize loading effects. The differential amplifier then amplifies the difference between the two input signals, and the resulting output signal is proportional to the difference in voltage between the two input signals.

Instrumentation amplifiers are used in applications where small voltage signals need to be accurately measured or amplified. They are commonly used in industrial control systems, biomedical instrumentation, data acquisition systems, and audio equipment.

One advantage of an instrumentation amplifier is that it can be used to measure small differential voltages even in the presence of significant common-mode noise, which can be difficult to achieve with other types of amplifiers. Additionally, many instrumentation amplifiers offer a high level of accuracy, stability, and linearity, which makes them a popular choice for precision measurement applications.