Overview
The OP495GSZ-REEL, produced by Analog Devices Inc., is a quad operational amplifier that combines the benefits of rail-to-rail output swing with high DC accuracy. This CBCMOS (Complementary Bipolar CMOS) operational amplifier is designed to offer low noise and high accuracy, making it suitable for a variety of precision applications. The OP495 is part of the OP295/OP495 family, which includes both dual and quad configurations, catering to different design requirements.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Offset Voltage | Vs = 5 V | - | - | 300 | μV |
| Open-Loop Gain | RL = 10 kΩ | 1000 | - | 4000 | V/mV |
| Gain Bandwidth Product | - | - | - | 75 | kHz |
| Supply Current per Amplifier | VOUT = 2.5 V, RL = ∞ | - | - | 150 | μA |
| Output Voltage Swing High | RL = 10 kΩ to GND | 4.90 | - | 4.94 | V |
| Output Voltage Swing Low | RL = 10 kΩ to GND | 0.7 | - | 2 | mV |
| Output Current | - | -11 | - | 18 | mA |
| Common-Mode Rejection Ratio | 0 V ≤ VCM ≤ 4.0 V | 90 | - | 110 | dB |
| Power Supply Rejection Ratio | ±1.5 V ≤ VS ≤ ±15 V | 85 | - | 110 | dB |
Key Features
- Rail-to-Rail Output Swing: The OP495 offers rail-to-rail output swing, allowing it to drive loads to within millivolts of the supply rails.
- High DC Accuracy: With a low offset voltage of 300 μV and high open-loop gain, the OP495 ensures high accuracy in DC applications.
- Low Supply Current: Each amplifier draws a maximum of 150 μA, making it suitable for battery-operated devices.
- Stability with Capacitive Loads: The OP495 is stable with loads in excess of 300 pF, which is beneficial for driving coax cable or large FET transistors.
- Wide Operating Temperature Range: The amplifier operates over a temperature range of -40°C to +125°C.
Applications
- Battery-Operated Instrumentation: Ideal for devices powered by lithium batteries or other single-supply systems.
- Servo Amplifiers and Actuator Drives: Suitable for applications requiring precise control and high output current.
- Sensor Conditioners: Enhances the accuracy and reliability of sensor outputs.
- Power Supply Control: Can be used in power supply control circuits to improve efficiency and stability.
- Transformer and Inductive Load Driving: Efficiently drives inductive loads, such as transformers, with increased efficiency.
Q & A
- What is the maximum offset voltage of the OP495?
The maximum offset voltage of the OP495 is 300 μV for 5 V operation. - What is the gain bandwidth product of the OP495?
The gain bandwidth product of the OP495 is 75 kHz. - How much current does each amplifier in the OP495 draw?
Each amplifier in the OP495 draws a maximum of 150 μA. - What is the output voltage swing range of the OP495?
The output voltage swing range of the OP495 is from 0.7 mV to 4.94 V for a 10 kΩ load to ground. - Is the OP495 stable with capacitive loads?
Yes, the OP495 is stable with loads in excess of 300 pF. - What is the common-mode rejection ratio of the OP495?
The common-mode rejection ratio of the OP495 is between 90 dB and 110 dB. - What is the operating temperature range of the OP495?
The OP495 operates over a temperature range of -40°C to +125°C. - Can the OP495 be used in battery-operated devices?
Yes, the OP495 is suitable for battery-operated devices due to its low supply current and single-supply operation. - What types of loads can the OP495 efficiently drive?
The OP495 can efficiently drive inductive loads such as transformers and capacitive loads like coax cable or large FET transistors. - Is the OP495 available in different package options?
Yes, the OP495 is available in various package options, including the GSZ-REEL package.
