Overview
The OP200EZ is a dual low offset, low power operational amplifier produced by Analog Devices Inc. It is the first monolithic dual operational amplifier to offer precision performance similar to the OP77, making it an ideal choice for applications requiring multiple precision op amps with low power consumption.
Available in industry-standard 8-lead and 16-lead packages, the OP200EZ combines precision performance with space and cost savings. It features extremely low input offset voltage, low offset voltage drift, and high open-loop gain, making it suitable for a wide range of precision applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | - | 25 | 75 | 80 | μV |
| Long-Term Input Voltage Stability | - | - | 0.1 | 0.1 | - | μV/mo |
| Input Offset Current | IOS | VCM = 0 V | 0.05 | 1.0 | 3.5 | nA |
| Input Bias Current | IB | VCM = 0 V | 0.1 | 2.0 | 5.0 | nA |
| Input Noise Voltage Density | en | fO = 1000 Hz | 11 | 18 | - | nV/√Hz |
| Input Resistance (Differential Mode) | RIN | - | 10 | - | - | MΩ |
| Large Signal Voltage Gain | AVO | VO = ±10 V, RL = 10 kΩ | 5000 | 12000 | - | V/mV |
| Common-Mode Rejection Ratio | CMR | VCM = ±12 V | 115 | - | - | dB |
| Power Supply Rejection Ratio | PSRR | VS = ±3 V to ±18 V | 0.15 | - | 10.0 | mV/V |
Key Features
- Extremely low input offset voltage: less than 75 μV with a drift below 0.5 μV/°C over the full military temperature range.
- High open-loop gain: exceeds 5,000,000 into a 10 kΩ load.
- Low input bias current: under 2 nA.
- High common-mode rejection ratio (CMRR): over 120 dB.
- Low power supply rejection ratio (PSRR): below 1.8 μV/V.
- Low noise voltage density: 11 nV/√Hz at 1 kHz.
- Stable with large capacitive loads: 10 nF typical.
- On-chip Zener zap trimming to achieve low input offset voltage.
- Low supply current: each amplifier draws less than 725 μA.
- Pin compatible with OP221, LM158, MC1458/1558, and LT1013.
Applications
The OP200EZ is suitable for a variety of precision applications where low power consumption and high accuracy are critical. These include:
- Precision instrumentation and measurement systems.
- Medical devices requiring low noise and high precision.
- Aerospace and military applications due to its performance over a wide temperature range.
- Industrial control systems where precision and reliability are essential.
- Audio and video equipment requiring low noise and high fidelity.
Q & A
- What is the input offset voltage of the OP200EZ?
The input offset voltage of the OP200EZ is less than 75 μV with a drift below 0.5 μV/°C over the full military temperature range.
- What is the open-loop gain of the OP200EZ?
The open-loop gain of the OP200EZ exceeds 5,000,000 into a 10 kΩ load.
- How much current does each amplifier in the OP200EZ draw?
Each amplifier in the OP200EZ draws less than 725 μA of supply current.
- What is the noise voltage density of the OP200EZ at 1 kHz?
The noise voltage density of the OP200EZ is 11 nV/√Hz at 1 kHz.
- Is the OP200EZ stable with large capacitive loads?
Yes, the OP200EZ is stable with large capacitive loads, typically up to 10 nF.
- What is the common-mode rejection ratio (CMRR) of the OP200EZ?
The CMRR of the OP200EZ is over 120 dB.
- What is the power supply rejection ratio (PSRR) of the OP200EZ?
The PSRR of the OP200EZ is below 1.8 μV/V.
- Is the OP200EZ pin compatible with other operational amplifiers?
Yes, the OP200EZ is pin compatible with OP221, LM158, MC1458/1558, and LT1013.
- What are some typical applications of the OP200EZ?
The OP200EZ is typically used in precision instrumentation, medical devices, aerospace and military applications, industrial control systems, and audio/video equipment.
- What is the temperature range for the OP200EZ?
The OP200EZ operates over a wide temperature range, including the full military temperature range of −55°C to +125°C.
