Overview
The OP07DDR, produced by Texas Instruments, is a precision operational amplifier known for its low offset voltage and long-term stability. This device is part of the OP07 series, which includes the OP07C and OP07D variants. The OP07DDR features a low-noise, chopperless, bipolar-input-transistor amplifier circuit, making it suitable for high-gain instrumentation applications. It does not require external components for offset nulling and frequency compensation in most cases, enhancing its usability and performance in various environments.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | TA = 0°C to 70°C | ±60 | ±85 | ±250 | μV |
| Input Offset Voltage Drift | dVOS/dT | TA = 0°C to 70°C | ±0.5 | - | ±2.5 | μV/°C |
| Power Supply Rejection Ratio | PSRR | VS = ±3 V to ±18 V | 7 | 32 | 51 | μV/V |
| Input Bias Current | IB | TA = 0°C to 70°C | ±1.8 | ±2.2 | ±14 | nA |
| Common-Mode Input Voltage | VCM | VS = ±15 V | –13 | - | 13 | V |
| Common-Mode Rejection Ratio | CMRR | VCM = ±13 V | 97 | 120 | 120 | dB |
| Slew Rate | SR | RL ≥ 2 kΩ | 0.1 | 0.3 | - | V/μs |
| Unity Gain Bandwidth | BW | AVOL = 15 | 0.4 | 0.6 | - | MHz |
| Output Voltage Swing | VO | RL ≥ 2 kΩ | ±11.5 | ±12.8 | - | V |
| Supply Voltage | VS | - | ±3 | - | ±18 | V |
| Operating Ambient Temperature | TA | - | 0 | - | 70 | °C |
Key Features
- Low Noise: The OP07DDR features low noise characteristics, making it suitable for applications requiring high precision and low noise levels.
- No External Components Required: For most applications, external components are not needed for offset nulling and frequency compensation, simplifying the design process.
- Wide Input-Voltage Range: The device has a wide input-voltage range of ±13 V, providing flexibility in various application scenarios.
- High Common-Mode Rejection Ratio (CMRR): With a CMRR of up to 120 dB, the OP07DDR offers excellent performance in high-noise environments and noninverting applications.
- Low Bias Currents and High Input Impedances: The device maintains low bias currents and high input impedances over the entire temperature range, ensuring stable operation.
- Offset Adjustment Capability: The OP07DDR allows for offset voltage adjustment using external circuitry, enhancing its versatility.
- Wide Supply-Voltage Range: The device operates from ±3 V to ±18 V, making it adaptable to various power supply conditions.
Applications
- Analog Input Modules: Suitable for analog input modules due to its high precision and low noise characteristics.
- Battery Test: Used in battery testing applications where accurate voltage measurements are crucial.
- Lab and Field Instrumentation: Ideal for laboratory and field instrumentation due to its stability and performance over a wide temperature range.
- Temperature Transmitters: Employed in temperature transmitter applications where precision and reliability are essential.
- Wireless Base Station Control Circuits: Used in wireless base station control circuits and optical network control circuits.
- Sensors and Controls: Suitable for sensors and control systems, including thermocouples, RTDs, and strain bridges.
- Precision Filters: Used in precision filter applications where low noise and high gain are required.
Q & A
- What is the typical input offset voltage of the OP07DDR?
The typical input offset voltage of the OP07DDR is ±85 μV.
- What is the slew rate of the OP07DDR?
The slew rate of the OP07DDR is 0.3 V/μs.
- What is the common-mode rejection ratio (CMRR) of the OP07DDR?
The CMRR of the OP07DDR is up to 120 dB.
- What is the operating temperature range of the OP07DDR?
The operating temperature range of the OP07DDR is from 0°C to 70°C.
- What is the supply voltage range for the OP07DDR?
The OP07DDR operates from ±3 V to ±18 V.
- Does the OP07DDR require external components for offset nulling and frequency compensation?
No, for most applications, external components are not required for offset nulling and frequency compensation.
- What are some common applications of the OP07DDR?
The OP07DDR is used in analog input modules, battery testing, lab and field instrumentation, temperature transmitters, and various sensor and control systems.
- How does the OP07DDR handle high-noise environments?
The OP07DDR features a true differential input with a wide input-voltage range and outstanding common-mode rejection, providing maximum flexibility and performance in high-noise environments.
- What is the power consumption of the OP07DDR?
The power consumption of the OP07DDR is typically 80 mW to 150 mW with a ±15 V supply and 4 mW to 8 mW with a ±3 V supply.
- Can the OP07DDR be used in single-supply configurations?
