OPA2652E/250 vs CLC4007ISO14MTR
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| Category | Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps | Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps |
| Manufacturer | Texas Instruments | MaxLinear, Inc. |
| Description | IC OPAMP VFB 2 CIRCUIT SOT23-8 | IC OPAMP VFB 4 CIRCUIT 14SOIC |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | SpeedPlus™ | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | SOT-23-8 | 14-SOIC (0.154\", 3.90mm Width) |
| Supplier Device Package | SOT-23-8 | 14-SOIC |
| Current - Supply | 11mA (x2 Channels) | 2.6mA (x4 Channels) |
| Output Type | - | Rail-to-Rail |
| Number of Circuits | 2 | 4 |
| Voltage - Supply, Single/Dual (±) | 6V ~ 12V, ±3V ~ 6V | 2.7V ~ 12.6V, ±1.35V ~ 6.3V |
| Current - Output / Channel | 140 mA | 100 mA |
| -3db Bandwidth | 700 MHz | 90 MHz |
| Amplifier Type | Voltage Feedback | Voltage Feedback |
| Current - Input Bias | 4 µA | 1.3 µA |
| Voltage - Input Offset | 1.5 mV | 500 µV |
| Slew Rate | 335V/µs | 225V/µs |
| Gain Bandwidth Product | 200 MHz | 260 MHz |
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1. How to choose the right instrumentation amplifier?
The input common-mode voltage range, gain-bandwidth product, noise performance, power consumption, temperature drift, and common-mode rejection ratio (CMRR) should be considered when selecting an instrumentation amplifier to ensure that it meets the accuracy requirements of a particular application.
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2. What is Common Mode Rejection Ratio (CMRR) and why is it important for instrumentation amplifiers?
CMRR indicates an instrumentation amplifier's ability to suppress common mode signals, with higher values being better. A high CMRR is especially important in noisy environments to ensure that the amplifier primarily amplifies differential signals and is not affected by common mode interference.
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3. What is a rail-to-rail operational amplifier and what are its advantages?
Rail-to-rail op amps are capable of extending the output voltage range to the limit of the supply voltage (i.e., the “rail”), allowing them to handle large dynamic range signals even at low supply voltages, making them particularly suitable for low-voltage power supply systems and portable devices.
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4. What is the effect of the op amp's out-of-range voltage on accuracy?
An out-of-phase voltage is the difference in voltage at which the output is not zero when the signal at the input is zero. A large out-of-phase voltage reduces the accuracy of a system, especially in high-gain applications, and selecting an op amp with a low out-of-phase voltage can improve accuracy.
