Overview
The OP400GS, produced by Analog Devices Inc., is a monolithic quad operational amplifier that offers high precision performance similar to the OP77. This device is designed to provide low input offset voltage, low power consumption, and high open-loop gain, making it suitable for a variety of precision applications. The OP400GS is part of the OP400 series, which is known for its low noise and high common-mode rejection ratio, making it ideal for instrumentation and measurement systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Offset Voltage (VOS) | 60 - 400 | μV |
| Average Input Offset Voltage Drift (TCVOS) | 0.3 - 2.5 | μV/°C |
| Input Offset Current (IOS) | 0.1 - 12.0 | nA |
| Input Bias Current (IB) | 0.9 - 20.0 | nA |
| Large-Signal Voltage Gain (AVO) | 2000 - 10,000 | V/mV |
| Input Voltage Range (IVR) | ±12 to ±12.5 | V |
| Common-Mode Rejection (CMR) | 105 - 135 | dB |
| Power Supply Rejection Ratio (PSRR) | 0.2 - 3.2 | mV/V |
| Supply Voltage | ±3 to ±20 | V |
| Operating Supply Current per Amplifier | 600 - 775 | μA |
| Maximum Operating Temperature | 70 | °C |
| Minimum Operating Temperature | 0 | °C |
| Gain Bandwidth Product (GBP) | 500 kHz | |
| Slew Rate (SR) | 150 mV/μs |
Key Features
- Low input offset voltage: less than 150 μV with a drift of less than 1.2 μV/°C.
- High open-loop gain: over 5 million into a 10 kΩ load.
- Low power consumption: less than 725 μA per amplifier.
- High common-mode rejection ratio (CMR): more than 120 dB.
- Low power supply rejection ratio (PSRR): less than 1.8 μV/V.
- On-chip Zener zap trimming for low input offset voltage without the need for offset nulling.
- Pin-compatible with LM148, HA4741, RM4156, and LT1014 operational amplifiers.
- Stable with large capacitive loads.
Applications
- Instrumentation and measurement systems where high input impedance, low noise, and high common-mode rejection ratio are required.
- Temperature measurement and current sensing.
- Signal amplification and transimpedance amplification.
- General-purpose differential amplification in various precision applications.
Q & A
- What is the input offset voltage of the OP400GS? The input offset voltage of the OP400GS is less than 150 μV.
- What is the typical supply current per amplifier for the OP400GS? The typical supply current per amplifier is less than 725 μA.
- What is the common-mode rejection ratio (CMR) of the OP400GS? The CMR is more than 120 dB.
- Is the OP400GS stable with capacitive loads? Yes, the OP400GS is stable with large capacitive loads.
- What is the gain bandwidth product (GBP) of the OP400GS? The GBP is 500 kHz.
- What is the slew rate of the OP400GS? The slew rate is 150 mV/μs.
- What is the operating temperature range of the OP400GS? The operating temperature range is from 0°C to 70°C.
- Is the OP400GS pin-compatible with other operational amplifiers? Yes, it is pin-compatible with LM148, HA4741, RM4156, and LT1014 operational amplifiers.
- What is the power supply voltage range for the OP400GS? The power supply voltage range is ±3 to ±20 V.
- What are some common applications of the OP400GS? Common applications include instrumentation, temperature measurement, current sensing, and signal amplification).
