Overview
The AMP03GS-REEL, produced by Analog Devices Inc., is a precision, unity-gain differential amplifier. This monolithic IC is designed for high-speed differential amplifier and instrumentation applications. It features a matched thin film resistor network, ensuring stable operation over temperature without the need for external matched components. The AMP03GS-REEL is known for its high common-mode rejection (CMR) of 100 dB typical, making it ideal for rejecting common-mode voltages in instrumentation systems. It offers superior performance with a slew rate of 9.5 V/µs and a bandwidth of 3 MHz, making it a higher speed alternative to the INA105.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | VCM = 0 V | -1500 | - | 1500 | µV |
| Gain Error | - | No Load, VIN = ±10 V, RS = 0 Ω | - | 0.02 | - | % |
| Input Voltage Range | IVR | - | - | ±20 | V | |
| Common-Mode Rejection | CMR | VCM = ±10 V | 75 | 95 | - | dB |
| Power Supply Rejection Ratio | PSRR | VS = ±6 V to ±18 V | - | 20 | - | µV/V |
| Output Swing | VO | RL = 2 kΩ | ±12 | - | ±13.7 | V |
| Slew Rate | SR | RL = 2 kΩ | - | 9.5 | - | V/µs |
| Supply Current | ISY | No Load | 2.5 | 3.5 | - | mA |
Key Features
- High common-mode rejection (CMR) of 100 dB typical, ensuring excellent rejection of common-mode voltages.
- Fast slew rate of 9.5 V/µs and a bandwidth of 3 MHz, making it suitable for high-speed applications.
- Low offset voltage and gain error, contributing to high precision in differential amplifier applications.
- Stable operation over temperature due to the matched thin film resistor network.
- Capacitive load drive capability of up to 300 pF without oscillation.
- Low cost and high performance, making it a versatile analog building block.
Applications
- Summing Amplifiers: Ideal for adding or subtracting two signals without the need for expensive externally matched precision resistors.
- Instrumentation Amplifiers: High CMR and fast settling time make it suitable for instrumentation applications.
- Balanced Line Receivers: Effective in rejecting common-mode voltages in balanced line receiver applications.
- Current-Voltage Conversion: Can be used for converting current to voltage with high precision.
- Absolute Value Amplifier: Suitable for applications requiring the absolute value of an input signal.
- 4 to 20 mA Current Transmitter: Used in industrial control systems for current transmission.
- Precision Voltage Reference Applications: Provides stable voltage references due to its high CMR and low offset voltage.
Q & A
- What is the typical common-mode rejection (CMR) of the AMP03GS-REEL?
The typical CMR of the AMP03GS-REEL is 100 dB.
- What is the slew rate of the AMP03GS-REEL?
The slew rate of the AMP03GS-REEL is 9.5 V/µs.
- What is the bandwidth of the AMP03GS-REEL?
The bandwidth of the AMP03GS-REEL is 3 MHz.
- What is the input voltage range of the AMP03GS-REEL?
The input voltage range of the AMP03GS-REEL is ±20 V.
- What is the supply current of the AMP03GS-REEL?
The supply current of the AMP03GS-REEL is typically 3.5 mA with no load.
- What are some common applications of the AMP03GS-REEL?
Common applications include summing amplifiers, instrumentation amplifiers, balanced line receivers, current-voltage conversion, and precision voltage reference applications.
- How does the AMP03GS-REEL handle capacitive loads?
The AMP03GS-REEL can drive capacitive loads up to 300 pF without oscillation.
- What is the significance of the matched thin film resistor network in the AMP03GS-REEL?
The matched thin film resistor network ensures stable operation over temperature without the need for external matched components.
- How does the AMP03GS-REEL compare to the INA105?
The AMP03GS-REEL is a higher speed alternative to the INA105, offering superior performance in terms of slew rate and bandwidth.
- What are the key benefits of using the AMP03GS-REEL in instrumentation design?
The key benefits include high CMR, fast settling time, and high slew rate, making it ideal for rejecting common-mode voltages and handling high-speed signals.
