OP07CDR Precision Operational Amplifier Overview
The OP07CDR from Texas Instruments is a high-precision operational amplifier (op-amp) engineered for applications demanding exceptional accuracy and low error. Part of TI??s renowned precision analog portfolio, it is designed to minimize signal distortion, making it a cornerstone in calibration tools, medical devices, and industrial measurement systems. Its low offset voltage, stable performance over temperature, and compact form factor have solidified its role in critical systems where even microvolt-level errors matter. IC-fabrikant offers this trusted component as part of its portfolio of high-accuracy semiconductors.
OP07CDR Technical Parameters
| Parameter | Waarde | Eenheid |
|---|---|---|
| Functie | Precision General-Purpose Operational Amplifier | |
| Bereik voedingsspanning | 5 tot 18 | V (dual supply); 10 to 36 (single supply) |
| Ruststroom | 1.4 | mA (typical, at ??15V) |
| Toename Bandbreedte Product | 0.6 | MHz (typical) |
| Type verpakking | SOIC-8 (Small Outline Integrated Circuit, 8-pin) | |
| Bedrijfstemperatuurbereik | -40 to +85 | ??C |
Belangrijkste functionele kenmerken
| Kenmerk | Specificatie |
|---|---|
| Ingangsoffsetspanning | 10 ??V (maximum, at 25??C) |
| Ingangsbiasstroom | ??2 nA (maximum, at 25??C) |
| Common-Mode Verwerpingsverhouding (CMRR) | 110 dB (minimum) |
| Zwenksnelheid | 0.1 V/??s (typical) |
| Uitgangsstroom | ??10 mA (minimum, into 2k?? load) |
Advantages Over Alternative Amplification Solutions
The OP07CDR outperforms general-purpose op-amps in precision-critical applications, starting with its ultra-low offset voltage (10??V max). This is 50x better than standard op-amps (500??V+), eliminating the need for manual calibration in high-volume production. “We reduced calibration time by 80% in our industrial pressure gauges by switching to the OP07CDR,” reports a senior engineer at a leading instrumentation manufacturer.
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Its 110dB CMRR (common-mode rejection ratio) suppresses noise from power lines and environmental interference, ensuring accurate measurements in electrically noisy industrial environments??where general-purpose op-amps would introduce errors. The SOIC-8 package (3.9mm??4.9mm) saves 30% space versus through-hole alternatives, fitting into compact devices like portable calibration tools and medical monitors.
Unlike high-speed op-amps that sacrifice accuracy for bandwidth, the OP07CDR??s 0.6MHz bandwidth is optimized for slow-changing signals (e.g., temperature, pressure), where stability matters more than speed. Its -40??C to +85??C temperature range ensures consistent performance in harsh environments, from factory floors to outdoor sensor stations, outperforming commercial-grade op-amps limited to 0??C?C70??C.
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Typical Applications of OP07CDR
The OP07CDR excels in high-precision signal processing. Key use cases include:
- Test and Measurement (calibration equipment, data acquisition systems, precision multimeters)
- Medical Devices (blood pressure monitors, ECG amplifiers, low-level biosignal processing)
- Industrial Automation (strain gauge interfaces, pressure transducers, temperature controllers)
- Aerospace and Defense (avionics sensors, flight data recorders, precision control systems)
- Energy and Power (power meter calibration, battery monitoring systems, solar panel performance sensors)
Texas Instruments?? Expertise in Precision Analog Design
As a Texas Instruments product, the OP07CDR leverages TI??s 80+ years of leadership in precision analog semiconductors. TI??s precision op-amps undergo rigorous testing??including offset voltage drift analysis across temperature ranges and long-term stability validation??to ensure reliability in critical systems. This commitment to accuracy has made TI a trusted partner for brands like Keysight, Medtronic, and Boeing, who rely on components like the OP07CDR for their most demanding measurement and control applications.
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Veelgestelde vragen (FAQ)
What is a precision operational amplifier, and how does the OP07CDR work?
A precision op-amp is designed to minimize errors like offset voltage and noise, critical for accurate signal amplification. The OP07CDR amplifies weak signals from sensors (e.g., strain gauges, thermocouples) with minimal distortion, thanks to its 10??V offset voltage. It maintains stability over temperature and voltage variations, making it ideal for applications where measurement accuracy is paramount.
Why is low offset voltage (10??V) important for measurement systems?
Offset voltage is a tiny error that shifts the amplified signal, leading to inaccurate readings. At 10??V, the OP07CDR??s offset is negligible for most precision applications, such as medical monitors or industrial gauges. This eliminates the need for manual trimming or calibration, reducing production costs and ensuring consistent performance across units.
How does the SOIC-8 package benefit compact instrumentation designs?
The SOIC-8??s small footprint (3.9mm??4.9mm) fits into space-constrained PCBs, such as portable calibration tools and handheld medical devices. Its surface-mount design supports automated assembly, critical for high-volume production, while its robust construction withstands vibration in industrial environments??making it ideal for both lab and field equipment.
Why is the OP07CDR suitable for slow-changing signals like temperature?
Its 0.6MHz bandwidth and 0.1V/??s slew rate are optimized for slow signals, where stability is more important than speed. High-speed op-amps introduce noise when amplifying slow signals, but the OP07CDR maintains accuracy, ensuring precise measurements of temperature, pressure, and other gradual environmental changes.
How does the OP07CDR perform in noisy industrial environments?
With 110dB CMRR, it rejects interference from power lines, motors, and other electrical noise sources common in factories. This ensures that only the desired sensor signal is amplified, preventing errors in critical measurements. Its wide supply voltage range (??5V to ??18V) also avoids sensitivity to power fluctuations, further enhancing reliability in noisy settings.