Overview
The OP221GSZ is a monolithic dual operational amplifier produced by Analog Devices Inc. It is designed for use in either single or dual supply operation, making it versatile for a wide range of applications. The amplifier features a wide supply voltage range, low supply current, and excellent specifications that include high open-loop gain, low input offset voltage, and high common-mode rejection ratio. These characteristics make the OP221GSZ well-suited for operation from batteries or unregulated power supplies.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | VCM = 0 | 250 | 500 | 700 | mV |
| Input Offset Current | IOS | VCM = 0 | 1.5 | 7 | 10 | nA |
| Input Bias Current | IB | VCM = 0 | 70 | 120 | 140 | nA |
| Input Voltage Range | IVR | V+ = 5 V, V– = 0 V | 0/3.5 | - | - | V |
| Common-Mode Rejection Ratio | CMRR | V+ = –5 V, V– = 0 V | 75 | 85 | 90 | dB |
| Power Supply Rejection Ratio | PSRR | VS = ±2.5 V to ± 15 V | 57 | 100 | 180 | mV/V |
| Large-Signal Voltage Gain | AVO | VS = ±15 V, RL = 10 kW | 600 | - | - | V/mV |
| Output Voltage Swing | VO | V+ = 5 V, V– = 0 V | 0.8/4 | - | - | V |
| Slew Rate | SR | RL = 10 kW | 0.2 | 0.3 | - | V/μs |
| Bandwidth | BW | - | - | 600 | - | kHz |
| Supply Current | ISY | VS = ±2.5 V, No Load | 550 | 650 | 750 | μA |
| Operating Temperature Range | - | - | -40°C to 85°C | - | - | °C |
Key Features
- Excellent TCVOS match and low input offset voltage drift (2-3 mV/°C).
- High open-loop gain (600 V/mV) and high common-mode rejection ratio (75-90 dB).
- Wide supply voltage range (±2.5 V to ±15 V) and wide input voltage range.
- Low supply current (550-750 μA per amplifier) and low input bias current (70-140 nA).
- High power supply rejection ratio (57-180 mV/V).
- Pin compatible with 1458, LM158, and LM2904.
- Available in various packages including SO-8 and DIP-8.
Applications
The OP221GSZ is suitable for a variety of applications due to its versatile characteristics. It can be used in battery-powered devices, unregulated power supplies, and general-purpose amplification circuits. Specific applications include:
- Audio and video signal processing
- Medical devices requiring low power consumption and high precision
- Industrial control systems where robustness and reliability are crucial
- Portable electronic devices where low power and compact design are essential
Q & A
- What is the input offset voltage of the OP221GSZ?
The input offset voltage of the OP221GSZ is typically 250-700 mV. - What is the common-mode rejection ratio of the OP221GSZ?
The common-mode rejection ratio is typically 75-90 dB. - What is the supply voltage range for the OP221GSZ?
The supply voltage range is ±2.5 V to ±15 V. - What is the slew rate of the OP221GSZ?
The slew rate is typically 0.2-0.3 V/μs. - Is the OP221GSZ pin compatible with other operational amplifiers?
Yes, it is pin compatible with 1458, LM158, and LM2904. - What is the operating temperature range of the OP221GSZ?
The operating temperature range is -40°C to 85°C. - What are the typical applications of the OP221GSZ?
It is used in battery-powered devices, unregulated power supplies, audio and video signal processing, medical devices, and industrial control systems. - What is the bandwidth of the OP221GSZ?
The bandwidth is typically 600 kHz. - Is the OP221GSZ available in different packages?
Yes, it is available in various packages including SO-8 and DIP-8. - What is the power supply rejection ratio of the OP221GSZ?
The power supply rejection ratio is typically 57-180 mV/V.
