Overview
The OP400GSZ, produced by Analog Devices Inc., is a quad low offset, low power operational amplifier. This device is notable for its precision performance, similar to the OP77, but in a quad amplifier configuration. It offers significant improvements over single op-amps like the OP07, including lower power consumption and enhanced specifications. The OP400GSZ is ideal for applications requiring multiple precision operational amplifiers with low power consumption.
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 | |
| Output Voltage Swing | VO | RL = 10 kΩ | ±12 | ±12.4 | V |
Key Features
- Extremely low input offset voltage of less than 150 µV and drift of less than 1.2 µV/°C.
- Low power consumption, drawing less than 725 µA per amplifier.
- High open-loop gain of more than 5 million into a 10 kΩ load.
- High common-mode rejection (CMR) of more than 120 dB and power supply rejection ratio (PSRR) of less than 1.8 µV/V.
- Low voltage noise density of 11 nV/√Hz at 10 Hz.
- On-chip Zener zap trimming for low input offset voltage without the need for offset nulling.
- Industry-standard quad pinout without null terminals.
Applications
The OP400GSZ is suitable for various applications that require multiple precision operational amplifiers with low power consumption. These include:
- Precision instrumentation and measurement systems.
- Medical devices requiring low noise and high precision.
- Aerospace and military applications due to its performance over the full military temperature range.
- Industrial control systems where low power and high accuracy are critical.
Q & A
- What is the input offset voltage of the OP400GSZ?
The input offset voltage of the OP400GSZ is less than 150 µV. - How much current does each amplifier in the OP400GSZ consume?
Each amplifier in the OP400GSZ consumes less than 775 µA. - What is the common-mode rejection ratio (CMR) of the OP400GSZ?
The CMR of the OP400GSZ is more than 115 dB. - What is the power supply rejection ratio (PSRR) of the OP400GSZ?
The PSRR of the OP400GSZ is less than 3.2 µV/V. - What is the output voltage swing of the OP400GSZ with a 10 kΩ load?
The output voltage swing of the OP400GSZ with a 10 kΩ load is ±12 to ±12.4 V. - Is the OP400GSZ suitable for high-temperature applications?
Yes, the OP400GSZ performs over the full military temperature range of −40°C to +85°C. - What is the voltage noise density of the OP400GSZ?
The voltage noise density of the OP400GSZ is 11 nV/√Hz at 10 Hz. - Does the OP400GSZ require offset nulling?
No, the OP400GSZ uses on-chip Zener zap trimming to achieve low input offset voltage without the need for offset nulling. - What is the typical supply voltage range for the OP400GSZ?
The typical supply voltage range for the OP400GSZ is ±3 V to ±18 V. - Is the OP400GSZ available in different packages?
Yes, the OP400GSZ is available in various packages, including P, Y, and S packages.
