Overview
The OP400HS, produced by Analog Devices Inc., is a monolithic quad operational amplifier that offers OP77-type performance without sacrificing precision. This amplifier is designed to provide low input offset voltage, low power consumption, and high precision, making it ideal for applications requiring multiple operational amplifiers with stringent performance requirements.
The OP400HS features an extremely low input offset voltage of less than 150 μV and a drift of less than 1.2 μV/°C, ensuring high accuracy and stability over a wide temperature range. It also boasts a high open-loop gain, low input bias current, and excellent common-mode rejection ratio (CMR) and power supply rejection ratio (PSRR).
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | 60 | 220 | 400 | μV | |
| Average Input Offset Voltage Drift | TCVOS | 0.3 | 1.2 | 2.5 | μV/°C | |
| Input Offset Current | IOS | VCM = 0 V | 0.1 | 2.5 | 6.0 | nA |
| Input Bias Current | IB | VCM = 0 V | 0.9 | 5.0 | 12.0 | nA |
| Large-Signal Voltage Gain | AVO | VCM = 0 V, RL = 10 kΩ | 3000 | 10,000 | V/mV | |
| Common-Mode Rejection | CMR | VCM = ±12 V | 115 | 135 | dB | |
| Power Supply Rejection Ratio | PSRR | VS = ±3 V to ±18 V | 0.15 | 3.2 | μV/V | |
| Supply Current per Amplifier | ISY | No load | 600 | 775 | μA | |
| Operating Supply Voltage | ±3 V to ±18 V | V | ||||
| Package | 16-SOIC |
Key Features
- Low Input Offset Voltage: Less than 150 μV with a drift of less than 1.2 μV/°C, ensuring high precision and stability.
- Low Power Consumption: Each amplifier draws less than 775 μA, making it suitable for power-sensitive applications.
- High Open-Loop Gain: More than 5 million into a 10 kΩ load, providing high gain accuracy.
- Low Input Bias Current: Less than 3 nA, reducing errors in the output signal.
- Excellent CMR and PSRR: Common-mode rejection ratio (CMR) of more than 120 dB and power supply rejection ratio (PSRR) of less than 1.8 μV/V, ensuring robust performance against common-mode and power supply noise.
- On-Chip Zener Zap Trimming: Eliminates the need for offset nulling, simplifying the design process.
- Quad Amplifier in a Single Package: Four channels in a single 16-SOIC package, saving space and reducing component count.[
Applications
- Precision Instrumentation: Ideal for applications requiring high precision and low noise, such as medical devices, test and measurement equipment, and industrial control systems.
- Low Power Systems: Suitable for battery-powered devices and other applications where power consumption is critical.
- Audio and Signal Processing: Can be used in audio equipment and signal processing circuits where low noise and high fidelity are essential.[
- Aerospace and Military: Meets military temperature range specifications, making it suitable for aerospace and military applications.[
Q & A
- What is the input offset voltage of the OP400HS?
The input offset voltage of the OP400HS is less than 150 μV with a drift of less than 1.2 μV/°C.
- How much current does each amplifier in the OP400HS draw?
Each amplifier in the OP400HS draws less than 775 μA.
- What is the common-mode rejection ratio (CMR) of the OP400HS?
The CMR of the OP400HS is more than 120 dB.[
- What is the power supply rejection ratio (PSRR) of the OP400HS?
The PSRR of the OP400HS is less than 1.8 μV/V.[
- What is the operating supply voltage range of the OP400HS?
The operating supply voltage range of the OP400HS is ±3 V to ±18 V.[
- What package type is the OP400HS available in?
The OP400HS is available in a 16-SOIC package.[
- Is the OP400HS suitable for military and aerospace applications?
Yes, the OP400HS meets military temperature range specifications, making it suitable for aerospace and military applications.[
- What are some typical applications of the OP400HS?
The OP400HS is typically used in precision instrumentation, low power systems, audio and signal processing, and aerospace and military applications.[
- How does the on-chip Zener zap trimming benefit the OP400HS?
The on-chip Zener zap trimming eliminates the need for offset nulling, simplifying the design process and improving precision.[
- What is the significance of the low input bias current in the OP400HS?
The low input bias current reduces errors in the output signal, ensuring high accuracy and precision in the amplifier's operation.[
