Overview
The OP295GP, produced by Analog Devices Inc., is a dual rail-to-rail operational amplifier designed for high accuracy and versatility in various applications. This operational amplifier combines the benefits of bipolar and CMOS technologies, offering low noise, high accuracy, and a wide range of operating voltages. The OP295GP is particularly suited for single-supply operations, making it ideal for battery-operated devices and systems requiring high precision and low power consumption.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (Vos) | Vs = 5V, TA = 25°C | - | - | 300 | μV |
| Gain Bandwidth Product | - | - | - | 75 | kHz |
| Open-Loop Gain | - | - | - | 1000 | V/mV |
| Supply Current per Amplifier | Vout = 1.5V, RL = ∞, -40°C ≤ TA ≤ +125°C | - | - | 150 | μA |
| Output Current per Channel | - | - | - | 15 | mA |
| Operating Supply Voltage | - | 3 | - | 36 | V |
| Input Voltage Range | - | -15 | - | 13.5 | V |
| Common-Mode Rejection Ratio (CMRR) | -15.0 V ≤ VCM ≤ +13.5 V, -40°C ≤ TA ≤ +125°C | 90 | 110 | - | dB |
| Power Supply Rejection Ratio (PSRR) | ±1.5 V ≤ Vs ≤ ±15 V, -40°C ≤ TA ≤ +125°C | 85 | 110 | - | dB |
Key Features
- Rail-to-Rail Output Swing: The OP295GP can swing its output voltage from the negative supply to within about 800 mV of the positive supply, making it suitable for a wide range of applications.
- Single-Supply Operation: Operates from 3 V to 36 V, making it ideal for battery-operated devices and systems.
- Low Offset Voltage: Maximum offset voltage of 300 μV, ensuring high accuracy in single-supply designs.
- High Open-Loop Gain: Minimum open-loop gain of 1000 V/mV, contributing to high accuracy systems.
- Unity-Gain Stable: Stable in unity-gain configurations, which is beneficial for buffer applications.
- Low Supply Current: Maximum supply current per amplifier of 150 μA, suitable for low power consumption applications.
- Stability with Capacitive Loads: Stable with loads in excess of 300 pF, useful for driving coax cable or large FET transistors.
Applications
- Battery-Operated Instrumentation: Ideal for devices powered by batteries due to its low power consumption and single-supply operation.
- Servo Amplifiers: Used in servo systems where high accuracy and stability are required.
- Actuator Drives: Suitable for driving actuators in various control systems.
- Sensor Conditioners: Used to condition signals from sensors, ensuring high accuracy and low noise.
- Power Supply Control: Can be used in power supply control circuits to regulate output voltages accurately.
Q & A
- What is the input offset voltage of the OP295GP?
The maximum input offset voltage of the OP295GP is 300 μV.
- What is the gain bandwidth product of the OP295GP?
The gain bandwidth product of the OP295GP is 75 kHz.
- What is the open-loop gain of the OP295GP?
The minimum open-loop gain of the OP295GP is 1000 V/mV.
- What is the maximum supply current per amplifier for the OP295GP?
The maximum supply current per amplifier for the OP295GP is 150 μA.
- What is the output current per channel of the OP295GP?
The output current per channel of the OP295GP is 15 mA.
- What is the operating supply voltage range for the OP295GP?
The OP295GP operates from 3 V to 36 V.
- Is the OP295GP stable with capacitive loads?
Yes, the OP295GP is stable with loads in excess of 300 pF.
- What are some common applications of the OP295GP?
The OP295GP is commonly used in battery-operated instrumentation, servo amplifiers, actuator drives, sensor conditioners, and power supply control.
- What is the common-mode rejection ratio (CMRR) of the OP295GP?
The CMRR of the OP295GP is between 90 dB and 110 dB.
- What is the power supply rejection ratio (PSRR) of the OP295GP?
The PSRR of the OP295GP is between 85 dB and 110 dB.
