Overview
The OP07AH is a precision operational amplifier produced by Analog Devices Inc. It is renowned for its ultra-low input offset voltage, low noise, and high stability, making it an industry standard for various instrumentation applications. The OP07AH is part of the OP07 family, which includes several grades with different temperature ranges and package options. This amplifier is particularly useful in high-gain instrumentation applications due to its low offset voltage and high open-loop gain.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | - | - | - | 75 μV | μV |
| Input Offset Voltage Drift (TCVOS) | - | - | - | 1.3 μV/°C | μV/°C |
| Input Bias Current (IB) | - | ±2.2 nA | - | ±9.0 nA | nA |
| Input Bias Current Drift (TCIB) | - | 18 pA/°C | - | 50 pA/°C | pA/°C |
| Input Voltage Range (IVR) | - | ±13 V | - | ±13.5 V | V |
| Supply Voltage Range | - | ±3 V | - | ±18 V | V |
| Common-Mode Rejection Ratio (CMRR) | VCM = ±13 V | 97 dB | - | 120 dB | dB |
| Slew Rate (SR) | RL ≥ 2 kΩ | 0.1 V/μs | 0.3 V/μs | - | V/μs |
| Operating Temperature | - | -55°C | - | 125°C | °C |
Key Features
- Low Input Offset Voltage: The OP07AH has a very low input offset voltage of 75 μV maximum, achieved through trimming at the wafer stage, which eliminates the need for external nulling.
- Low Noise: It features low noise with a maximum of 0.6 μV p-p, making it suitable for high-precision applications.
- Wide Input and Supply Voltage Range: The amplifier has a wide input voltage range of ±13 V and a supply voltage range of ±3 V to ±18 V, providing flexibility in various circuit configurations.
- High Common-Mode Rejection Ratio (CMRR): With a CMRR of 97 dB to 120 dB, it ensures high accuracy in noninverting circuit configurations.
- Low Input Bias Current and High Input Impedance: The OP07AH has low input bias current and high input impedance, which are maintained over the entire temperature range.
- Stability Over Time and Temperature: The amplifier exhibits excellent stability of offsets and gain with time or variations in temperature.
Applications
- Instrumentation: The OP07AH is widely used in instrumentation applications due to its high precision and stability.
- Sensors and Controls: It is suitable for use in sensors, thermocouples, resistor thermal detectors (RTDs), strain bridges, and shunt current measurements.
- Wireless and Optical Networks: The amplifier can be used in wireless base station control circuits and optical network control circuits.
- Lab and Field Instrumentation: It is used in various lab and field instrumentation applications, including analog input modules, battery tests, and temperature transmitters.
- Precision Filters: The OP07AH can be employed in precision filter circuits due to its excellent linearity and gain accuracy.
Q & A
- Q: What is the typical input offset voltage of the OP07AH?
A: The typical input offset voltage of the OP07AH is 75 μV maximum.
- Q: What is the operating temperature range of the OP07AH?
A: The OP07AH operates over a temperature range of -55°C to 125°C.
- Q: What is the slew rate of the OP07AH?
A: The slew rate of the OP07AH is 0.1 V/μs to 0.3 V/μs for RL ≥ 2 kΩ.
- Q: What is the common-mode rejection ratio (CMRR) of the OP07AH?
A: The CMRR of the OP07AH is 97 dB to 120 dB).
- Q: What are the typical supply voltage ranges for the OP07AH?
A: The OP07AH can operate with supply voltages ranging from ±3 V to ±18 V).
- Q: Is the OP07AH suitable for high-gain instrumentation applications?
A: Yes, the OP07AH is particularly useful for high-gain instrumentation applications due to its low offset voltage and high open-loop gain).
- Q: What types of packages are available for the OP07AH?
A: The OP07AH is available in epoxy 8-lead PDIP, 8-lead narrow SOIC, TO-205AA, and TO-5-8 metal can packages).
- Q: Does the OP07AH require external components for offset nulling?
A: No, the OP07AH generally does not require external components for offset nulling due to its low input offset voltage achieved through wafer-stage trimming).
- Q: What are some common applications of the OP07AH in sensors and controls?
A: The OP07AH is used in thermocouples, resistor thermal detectors (RTDs), strain bridges, and shunt current measurements).
- Q: Is the OP07AH RoHS compliant?
A: Yes, the OP07AH is lead-free and RoHS compliant).
