Strain Gauge Analog Amplifier with Current Output
Broad Compatibility, Precision You Can Trust
The IAA200 is a high-precision analog amplifier designed for strain gauge-based sensors in industrial and laboratory applications. It delivers enhanced signal conditioning with superior accuracy and rugged reliability where analog voltage solutions fall short.
This unit offers:
- Non-linearity improved to ±0.005% of FSR
- Noise performance enhanced to 4 μAp-p (Typ)
- Hot-swappable functionality for live system integration
- Built-in ESD, over-voltage, and over-current protection
- 256 selectable gain combinations via DIP switches
The IAA200 supports 5 VDC and 10 VDC bridge excitation voltages, features a removable magnetic metal cover for EMI shielding, and includes a spring-loaded 35mm DIN clip for secure DIN rail mounting. Built to IPC-A-610 Class 3 standards, it meets aerospace and medical-grade quality requirements, ensuring stable and accurate amplification in demanding environments.
| Features | IAA200 (Legacy) | IAA200 (New) |
|---|---|---|
| Non-linearity | 0.01% of FSR | 0.005% of FSR |
| Noise-Free Resolution | 15μAp-p (Typ) | 4μAp-p (Typ) |
| Load Impedance | <500Ω | <700Ω |
| Power Supply | 12.5-26V | 12-30V |
| DIN Clip | 35mm DIN clip | Spring-loaded 35mm DIN clip |
| Cover | Fixed | Removable magnetic metal cover with EMI shielding |
| External Chassis Connection | — | yes |
| Hot-Swappable | — | yes |
| On-Board ESD Protection | — | yes |
| On-Board Over-Current/Over-Voltage Protection | — | yes |
Flexible Gain and Output Configuration for Sensor Compatibility
Offering a variety of current output options—4–20 mA, 0–20 mA, 5–25 mA, and 12 ±8 mA—the IAA200 is ideal for long distance signal transmission, offering improved noise immunity and minimal signal degradation in electrically noisy industrial environments, while seamlessly integrating with a wide range of current-based data acquisition systems.
It features 256 selectable gain combinations via DIP switches, allowing users to adjust the amplifier gain to their specific sensor’s mV/V output and excitation voltage. The gain combinations, in conjunction with selectable bridge excitation voltages of 5 VDC or 10 VDC, enable compatibility with a wide range of strain gauge-based sensors.
For added flexibility, users have access to a Zero Shift and sensor polarity DIP switch. The Zero Shift DIP switch provides a selectable offset of 0 or midpoint (depending on current output configuration), while the sensor polarity switch enhances setup efficiency by allowing quick polarity adjustments without having to rewire.
Precision Performance with Low Non-Linearity and Noise
The refined design of the IAA200 significantly reduces current output noise levels, enhancing signal fidelity and overall system performance. With noise levels reduced from 15 μAp-p (Typ) in the previous version to 4 μAp-p (Typ), this amplifier ensures precise and reliable data without compromising the performance of connected sensors. Additionally, the inclusion of an external chassis connection offers robust noise isolation, minimizing external interference and ensuring measurement accuracy in challenging environments.
With a non-linearity of 0.005%, well beyond typical industry specifications, the IAA200 delivers accurate and repeatable sensor output, making it suitable for applications requiring tight tolerances or closed-loop control.
Hot-Swappable for Safe and Continuous Operation
The IAA200 comes with the ability to hot swap, acting both as a protection in the event the unit is plugged in with power on or as a feature required for unique applications where power cannot be turned off.
Built-In Protection for Reliable Operation
This strain gauge amplifier features robust on-board protection circuitry to safeguard against electrostatic discharge (ESD) and overcurrent/voltage events. This ensures more reliable connections and enhances the overall durability of the unit.
Selectable Shunt Calibration and Wide Supply Compatibility
The IAA200 provides 256 selectable shunt combinations configured via DIP switches. The selected shunt combination helps simulate specific load conditions on the load cell, enabling calibration, troubleshooting, or DAQ setup when applying an actual load is impractical. Shunt activation is controlled via the front pushbutton or a remote digital input (5–26 VDC) connected to pin 3 on the power side connector, allowing efficient and uninterrupted operation.
Additionally, the IAA200 supports a broad supply voltage range from 12 to 30 VDC, ensuring seamless compatibility with various power supplies in industrial settings.
Rugged Housing and Industrial-Grade Build Quality
Designed for durability in critical environments, the IAA200 features a metal magnetic cover that protects internal circuitry, enhances noise immunity, and provides partial EMI shielding — ideal for high-precision applications. The cover also helps prevent damage during installation and reduces ESD exposure. For secure and efficient mounting, the unit includes a spring-loaded 35mm DIN clip, ensuring firm attachment to DIN rails.
Assembled to IPC-A-610 Class 3 standards, the IAA200 meets aerospace and medical-grade quality requirements, delivering reliable performance in demanding industries.
Broad Compatibility, Precision You Can Trust
The IAA200 is a high-precision analog amplifier designed for strain gauge-based sensors in industrial and laboratory applications. It delivers enhanced signal conditioning with superior accuracy and rugged reliability where analog voltage solutions fall short.
This unit offers:
- Non-linearity improved to ±0.005% of FSR
- Noise performance enhanced to 4 μAp-p (Typ)
- Hot-swappable functionality for live system integration
- Built-in ESD, over-voltage, and over-current protection
- 256 selectable gain combinations via DIP switches
The IAA200 supports 5 VDC and 10 VDC bridge excitation voltages, features a removable magnetic metal cover for EMI shielding, and includes a spring-loaded 35mm DIN clip for secure DIN rail mounting. Built to IPC-A-610 Class 3 standards, it meets aerospace and medical-grade quality requirements, ensuring stable and accurate amplification in demanding environments.
| Features | IAA200 (Legacy) | IAA200 (New) |
|---|---|---|
| Non-linearity | 0.01% of FSR | 0.005% of FSR |
| Noise-Free Resolution | 15μAp-p (Typ) | 4μAp-p (Typ) |
| Load Impedance | <500Ω | <700Ω |
| Power Supply | 12.5-26V | 12-30V |
| DIN Clip | 35mm DIN clip | Spring-loaded 35mm DIN clip |
| Cover | Fixed | Removable magnetic metal cover with EMI shielding |
| External Chassis Connection | — | yes |
| Hot-Swappable | — | yes |
| On-Board ESD Protection | — | yes |
| On-Board Over-Current/Over-Voltage Protection | — | yes |
Flexible Gain and Output Configuration for Sensor Compatibility
Offering a variety of current output options—4–20 mA, 0–20 mA, 5–25 mA, and 12 ±8 mA—the IAA200 is ideal for long distance signal transmission, offering improved noise immunity and minimal signal degradation in electrically noisy industrial environments, while seamlessly integrating with a wide range of current-based data acquisition systems.
It features 256 selectable gain combinations via DIP switches, allowing users to adjust the amplifier gain to their specific sensor’s mV/V output and excitation voltage. The gain combinations, in conjunction with selectable bridge excitation voltages of 5 VDC or 10 VDC, enable compatibility with a wide range of strain gauge-based sensors.
For added flexibility, users have access to a Zero Shift and sensor polarity DIP switch. The Zero Shift DIP switch provides a selectable offset of 0 or midpoint (depending on current output configuration), while the sensor polarity switch enhances setup efficiency by allowing quick polarity adjustments without having to rewire.
Precision Performance with Low Non-Linearity and Noise
The refined design of the IAA200 significantly reduces current output noise levels, enhancing signal fidelity and overall system performance. With noise levels reduced from 15 μAp-p (Typ) in the previous version to 4 μAp-p (Typ), this amplifier ensures precise and reliable data without compromising the performance of connected sensors. Additionally, the inclusion of an external chassis connection offers robust noise isolation, minimizing external interference and ensuring measurement accuracy in challenging environments.
With a non-linearity of 0.005%, well beyond typical industry specifications, the IAA200 delivers accurate and repeatable sensor output, making it suitable for applications requiring tight tolerances or closed-loop control.
Hot-Swappable for Safe and Continuous Operation
The IAA200 comes with the ability to hot swap, acting both as a protection in the event the unit is plugged in with power on or as a feature required for unique applications where power cannot be turned off.
Built-In Protection for Reliable Operation
This strain gauge amplifier features robust on-board protection circuitry to safeguard against electrostatic discharge (ESD) and overcurrent/voltage events. This ensures more reliable connections and enhances the overall durability of the unit.
Selectable Shunt Calibration and Wide Supply Compatibility
The IAA200 provides 256 selectable shunt combinations configured via DIP switches. The selected shunt combination helps simulate specific load conditions on the load cell, enabling calibration, troubleshooting, or DAQ setup when applying an actual load is impractical. Shunt activation is controlled via the front pushbutton or a remote digital input (5–26 VDC) connected to pin 3 on the power side connector, allowing efficient and uninterrupted operation.
Additionally, the IAA200 supports a broad supply voltage range from 12 to 30 VDC, ensuring seamless compatibility with various power supplies in industrial settings.
Rugged Housing and Industrial-Grade Build Quality
Designed for durability in critical environments, the IAA200 features a metal magnetic cover that protects internal circuitry, enhances noise immunity, and provides partial EMI shielding — ideal for high-precision applications. The cover also helps prevent damage during installation and reduces ESD exposure. For secure and efficient mounting, the unit includes a spring-loaded 35mm DIN clip, ensuring firm attachment to DIN rails.
Assembled to IPC-A-610 Class 3 standards, the IAA200 meets aerospace and medical-grade quality requirements, delivering reliable performance in demanding industries.