Instrumentation Amplifiers

Instrumentation amplifiers are a type of precision gain block, a differential amplifier (a type of electronic amplifier that amplifies the voltage difference between two inputs but suppresses any voltage common to the two inputs). Instrumentation Amplifiers are also known as in-amps.

Common applications are:

• Test & Measurement Industrial Devices
• Data Acquisition Devices
• Medical Devices
• Any noisy environment where large common-mode signals are present

How do instrumentation amplifiers work?

An instrumentation amplifier measures small signals in a noisy environment. The noise generally is "common-mode noise" (the difference between the noise-free common mode voltage and the actual common mode voltage). An instrumentation amplifier uses its common-mode rejection to distinguish the noise from the signal of interest.

What are the instrumentation amplifiers used for?

Instrumentation amplifiers are needed in nearly every field of electronics, particularly in the test and measurement industry. They can be used as a voltage follower, selective inversion circuit, a current-to-voltage converter, active rectifier, integrator, a variety of filters, and a voltage comparator.

Unlike instrumentation amplifiers (In Amp), operational amplifiers (Op Amp) are high-gain voltage amplifying devices with a differential input.

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Description Price Power Supply Type Package Type Mounting Type Typical Single Supply Voltage Pin Count Typical Dual Supply Voltage Rail to Rail Maximum Input Offset Voltage Minimum Operating Temperature Maximum Operating Temperature Maximum Input Resistance Minimum CMRR Typical Gain Bandwidth Product Maximum Supply Current
RS庫存編號 923-6683
製造零件編號INA333AIDGKT
TWD110.30
個 (在毎卷:250)
單位
Dual, Single MSOP Surface Mount 1.8 → 5.5 V 8 ±0.9 → ±2.75V Rail to Rail Output 0.025mV -40 °C +150 °C 100GΩ 80dB 150kHz 0.075 mA
RS庫存編號 704-4032
製造零件編號INA333AIDGKT
TWD173.00
單位
Dual, Single MSOP Surface Mount 1.8 → 5.5 V 8 ±0.9 → ±2.75V Rail to Rail Output 0.025mV -40 °C +150 °C 100GΩ 80dB 150kHz 0.075 mA
RS庫存編號 231-5512
製造零件編號INA118U
TWD402.00
單位
Dual SOIC Surface Mount - 8 ±15V No 125µV -40 °C +125 °C 10GΩ 73dB 800kHz 0.385 mA
RS庫存編號 100-0773
製造零件編號INA118U
TWD328.40
毎管:75 個
單位
Dual SOIC Surface Mount - 8 ±15V - 125µV -40 °C +125 °C 10GΩ 73dB 800kHz 0.385 mA
RS庫存編號 412-327
製造零件編號AD620BNZ
TWD355.00
單位
Dual PDIP Through Hole - 8 ±12 V, ±15 V, ±3 V, ±5 V, ±9 V No 50µV -40 °C +85 °C 10GΩ 80dB 120kHz -
RS庫存編號 912-7113
製造零件編號AD620BNZ
TWD350.50
毎管:50 個
單位
Dual PDIP Through Hole - 8 ±12 V, ±15 V, ±3 V, ±5 V, ±9 V No 50µV -40 °C +85 °C 10GΩ 80dB 120kHz -
RS庫存編號 522-9717
製造零件編號AD620ANZ
TWD294.00
單位
Dual PDIP Through Hole - 8 ±12 V, ±15 V, ±3 V, ±5 V, ±9 V No 0.125mV -40 °C +85 °C 10GΩ 73dB 1MHz -
RS庫存編號 111-1132
製造零件編號AD620ANZ
TWD251.30
毎管:50 個
單位
Dual PDIP Through Hole - 8 ±12 V, ±15 V, ±3 V, ±5 V, ±9 V - 0.125mV -40 °C +85 °C 10GΩ 73dB 1MHz -
RS庫存編號 218-8433
製造零件編號INA128U
TWD272.00
單位
Dual SOIC Surface Mount - 8 ±15V No 50µV -40 °C +85 °C 100GΩ 80dB 1.3MHz -
RS庫存編號 100-0771
製造零件編號INA128U
TWD300.90
毎管:75 個
單位
Dual SOIC Surface Mount - 8 ±15V - 50µV -40 °C +85 °C 100GΩ 80dB 1.3MHz -
RS庫存編號 759-0080
製造零件編號AD8495ARMZ
TWD197.00
單位
Dual, Single MSOP Surface Mount 2.7 → 36 V 8 ±2.7 → ±18V Rail to Rail Output - -40 °C +125 °C 60kΩ - 25kHz 0.25 mA
RS庫存編號 698-7118
製造零件編號MAX6675ISA+
TWD364.00
單位
Single SOIC Surface Mount 3 → 5.5 V 8 - No - -20 °C +85 °C - - - 1.5 mA
RS庫存編號 161-0179
製造零件編號AD621ARZ
TWD275.00
毎管:98 個
單位
Dual SOIC Surface Mount - 8 ±12 V, ±15 V, ±3 V, ±5 V, ±9 V No 0.25mV -40 °C +85 °C 10GΩ 93dB - -
RS庫存編號 427-266
製造零件編號AD621ARZ
TWD364.00
單位
Dual SOIC Surface Mount - 8 ±12 V, ±15 V, ±3 V, ±5 V, ±9 V No 0.25mV -40 °C +85 °C 10GΩ 93dB - -
RS庫存編號 121-6694
製造零件編號AD8495ARMZ
TWD139.30
毎管:50 個
單位
- - - - - - - - - - - - - -
RS庫存編號 923-5570
製造零件編號MAX6675ISA+
TWD282.40
毎管:100 個
單位
Single SOIC Surface Mount 3 → 5.5 V 8 - No - -20 °C +85 °C - - - 1.5 mA
RS庫存編號 160-1739
製造零件編號AD8426ACPZ-WP
TWD141.60
Each (In a Tray of 64)
單位
Dual, Single LFCSP Surface Mount 2.2 → 36 V 16 ±1.35 → ±18V Rail to Rail Output 200µV -40 °C +125 °C 100kΩ 105dB 1MHz 600 (Quiescent) μA
RS庫存編號 111-2201
製造零件編號AD627ANZ
TWD200.20
毎管:50 個
單位
Dual, Single PDIP Through Hole 7.5 V 8 ±15V Rail to Rail Output 0.25mV -40 °C +85 °C 20GΩ 77dB - 0.085 mA
RS庫存編號 506-0293
製造零件編號LT1167ACS8#PBF
TWD337.00
單位
Dual SOIC Surface Mount - 8 ±12 V, ±15 V, ±3 V, ±5 V, ±9 V No 0.04mV 0 °C +70 °C 1000GΩ 90dB 1MHz 1.3 mA
RS庫存編號 923-3555
製造零件編號INA2128UA
TWD317.20
毎管:40 個
單位
Dual SOIC Surface Mount - 16 ±15V - 125µV -40 °C +85 °C 100GΩ 73dB 1.3MHz 1.5 mA