Overview
The OP07CDG4, produced by Texas Instruments, is a precision operational amplifier that belongs to the OP07x family. This device is renowned for its low offset voltage and long-term stability, achieved through a low-noise, chopperless, bipolar-input-transistor amplifier circuit. The OP07CDG4 is designed to operate without the need for external components for offset nulling and frequency compensation, making it highly versatile and efficient in various applications.
The amplifier features a true differential input with a wide input-voltage range and outstanding common-mode rejection, ensuring maximum flexibility and performance in high-noise environments and noninverting applications. It maintains low bias currents and extremely high input impedances across the entire temperature range, enhancing its reliability and accuracy.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | TA = 0°C to 70°C | ±60 | ±85 | μV | |
| Input Offset Voltage Drift | dVOS/dT | TA = 0°C to 70°C | ±0.5 | μV/°C | ||
| Long-term Drift of Input Offset Voltage | TA = 0°C to 70°C | ±0.4 | μV/month | |||
| Input Bias Current | IB | TA = 25°C | ±1.2 | ±4.0 | nA | |
| Common-mode Input Voltage | VCM | VS = ±15 V | –13 | 13 | V | |
| Common-mode Rejection Ratio | CMRR | VCM = ±13 V | 100 | 120 | dB | |
| Open-loop Voltage Gain | AOL | RL = 500 kΩ | 100 | 400 | V/mV | |
| 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 | |
| Power Dissipation | Pd | VS = ±15 V, No load | 80 | 150 | mW |
Key Features
- Low Noise: The OP07CDG4 features low noise characteristics, making it suitable for high-precision applications.
- No External Components Required: For most applications, external components are not needed for offset nulling and frequency compensation.
- Wide Input-Voltage Range: The device operates with a wide input-voltage range of 0 V to ±14 V (typical, ±15-V supply).
- Wide Supply-Voltage Range: It can operate from ±3 V to ±18 V supplies.
- High Common-Mode Rejection Ratio (CMRR): The CMRR is as high as 120 dB, ensuring excellent performance in high-noise environments.
- Low Bias Currents and High Input Impedances: Maintains low bias currents and extremely high input impedances over the entire temperature range.
- True Differential Input: Provides maximum flexibility and performance in noninverting applications.
Applications
- Analog Input Modules: Suitable for precision analog input modules due to its low noise and high CMRR.
- Battery Test: Used in battery testing applications where high accuracy is required.
- Lab and Field Instrumentation: Ideal for laboratory and field instrumentation due to its stability and precision.
- Temperature Transmitters: Employed in temperature transmitter applications where low offset and high CMRR are crucial.
- Merchant Network & Server PSU: Used in power supply units for merchant networks and servers.
- Wireless Base Station Control Circuits: Suitable for wireless base station control circuits.
- Optical Network Control Circuits: Used in optical network control circuits.
- Sensors and Controls: Employed in various sensor and control applications.
- Thermocouples and RTDs: Used with thermocouples and resistor thermal detectors (RTDs).
- Strain Bridges and Shunt Current Measurements: Suitable for strain bridge and shunt current measurement applications.
Q & A
- What is the typical input offset voltage of the OP07CDG4?
The typical input offset voltage of the OP07CDG4 is ±85 μV.
- What is the input bias current of the OP07CDG4?
The input bias current of the OP07CDG4 is typically ±4.0 nA.
- What is the common-mode rejection ratio (CMRR) of the OP07CDG4?
The CMRR of the OP07CDG4 is as high as 120 dB.
- What is the slew rate of the OP07CDG4?
The slew rate of the OP07CDG4 is typically 0.3 V/μs.
- What is the unity gain bandwidth of the OP07CDG4?
The unity gain bandwidth of the OP07CDG4 is typically 0.6 MHz.
- What is the output voltage swing of the OP07CDG4?
The output voltage swing of the OP07CDG4 is typically ±12.8 V for RL ≥ 2 kΩ.
- What is the power dissipation of the OP07CDG4?
The power dissipation of the OP07CDG4 is typically 150 mW with no load at VS = ±15 V.
- What are the typical applications of the OP07CDG4?
The OP07CDG4 is used in various applications including analog input modules, battery testing, lab and field instrumentation, temperature transmitters, and more.
- What is the operating temperature range of the OP07CDG4?
The operating temperature range of the OP07CDG4 is from 0°C to 70°C.
- What are the package options available for the OP07CDG4?
The OP07CDG4 is available in SOIC, PDIP, and SO packages.
