Overview
The OP07DR, produced by Analog Devices Inc., is a precision operational amplifier known for its ultra-low offset voltage and high stability. This amplifier is part of the OP07 family, which has been an industry standard for instrumentation applications due to its excellent performance characteristics. The OP07DR is particularly noted for its low input offset voltage, low noise, and high common-mode rejection ratio (CMRR), making it suitable for a wide range of high-accuracy applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | 0°C ≤ TA ≤ 70°C | 45 | 150 | 250 | μV |
| Input Offset Voltage Drift | TCVOS | 1.5 | μV/°C | |||
| Input Bias Current | IB | −40°C ≤ TA ≤ +125°C | 0.2 | 1 | 1 | nA |
| Common-Mode Rejection Ratio | CMRR | VCM = ±13 V | 97 | 120 | dB | |
| Power Supply Rejection Ratio | PSRR | VS = ±3 V to ±18 V | 10 | 51 | μV/V | |
| Supply Voltage Range | VS | ±3 | ±18 | V | ||
| Operating Ambient Temperature | TA | −40 | 125 | °C | ||
| Slew Rate | SR | RL = 10 kΩ | 0.2 | V/μs | ||
| Unity Gain Bandwidth | BW | AVOL = 15 | 0.4 | 0.6 | MHz | |
| Output Voltage Swing | VO | RL ≥ 2 kΩ | ±11 | ±12.6 | V | |
| Power Dissipation | Pd | VS = ±15 V, No load | 75 | 120 | mW |
Key Features
- Low Offset Voltage: The OP07DR features an ultra-low input offset voltage of 150 μV maximum, ensuring high accuracy in various applications.
- Low Noise: It has a low noise performance with a voltage noise density of 10 nV/√Hz at 1 kHz, making it suitable for sensitive measurements.
- High CMRR and PSRR: The amplifier boasts a high common-mode rejection ratio (CMRR) of 97 dB minimum and a power supply rejection ratio (PSRR) of 10 μV/V, providing excellent stability against common-mode and power supply variations.
- Wide Supply Voltage Range: It operates over a wide supply voltage range of ±3 V to ±18 V, offering flexibility in different power supply configurations.
- Low Input Bias Current: The OP07DR has a low input bias current of ±1 nA maximum, which is beneficial for high-impedance sources).
- High Stability: The amplifier maintains stability of offsets and gain over time and temperature variations, ensuring reliable performance in various environmental conditions).
Applications
- Instrumentation: The OP07DR is widely used in lab and field instrumentation due to its high accuracy and stability).
- Sensors and Controls: It is suitable for applications involving thermocouples, resistor thermal detectors (RTDs), strain bridges, and shunt current measurements).
- Medical and Industrial Instrumentation: The amplifier is used in medical and industrial instrumentation where high precision and low noise are critical).
- Precision Filters: Its high gain and low noise make it ideal for precision filter applications).
- Temperature Transmitters: The OP07DR is used in temperature transmitter applications due to its stability and accuracy over a wide temperature range).
Q & A
- What is the maximum input offset voltage of the OP07DR?
The maximum input offset voltage of the OP07DR is 150 μV at 0°C to 70°C and 250 μV at −40°C to +125°C).
- What is the typical slew rate of the OP07DR?
The typical slew rate of the OP07DR is 0.2 V/μs with a load resistance of 10 kΩ).
- What is the common-mode rejection ratio (CMRR) of the OP07DR?
The CMRR of the OP07DR is 97 dB minimum).
- What is the power supply rejection ratio (PSRR) of the OP07DR?
The PSRR of the OP07DR is 10 μV/V).
- What is the operating temperature range of the OP07DR?
The OP07DR operates over a temperature range of −40°C to +125°C).
- What are the typical package options for the OP07DR?
The OP07DR is available in 8-lead PDIP and 8-lead narrow SOIC packages).
- What is the input bias current of the OP07DR?
The input bias current of the OP07DR is ±1 nA maximum).
- What is the unity gain bandwidth of the OP07DR?
The unity gain bandwidth of the OP07DR is 0.4 to 0.6 MHz).
- What are some common applications of the OP07DR?
The OP07DR is commonly used in instrumentation, sensors and controls, medical and industrial instrumentation, precision filters, and temperature transmitters).
- How does the OP07DR maintain stability over time and temperature variations?
The OP07DR maintains stability through its low noise, chopperless bipolar-input-transistor amplifier circuit and the use of Analog Devices’ iPolar™ process, which ensures minimal drift over time and temperature).
