MAX448ACPD vs ICL7632CCJE
| Part Number |
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| Category | Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps | Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps |
| Manufacturer | Maxim Integrated | Maxim Integrated |
| Description | QUAD OPERATIONAL AMPLIFIER | IC GP OPAMP 3 CIRCUIT 16CERDIP |
| Package | Bulk | Bulk |
| Series | - | - |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | 14-DIP (0.300\", 7.62mm) | 16-CDIP (0.300\", 7.62mm) |
| Supplier Device Package | 14-PDIP | 16-CERDIP |
| Current - Supply | 30mA (x4 Channels) | 1mA (x3 Channels) |
| Output Type | - | Rail-to-Rail |
| Number of Circuits | 4 | 3 |
| Voltage - Supply, Single/Dual (±) | 6V | 2V ~ 16V, ±1V ~ 8V |
| Current - Output / Channel | - | - |
| -3db Bandwidth | - | - |
| Amplifier Type | General Purpose | CMOS |
| Current - Input Bias | 650 nA | 1 pA |
| Voltage - Input Offset | 3 mV | 10 mV |
| Slew Rate | 90V/µs | 1.6V/µs |
| Gain Bandwidth Product | 100 MHz | 1.4 MHz |
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1. 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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2. How is the noise performance of instrumentation amplifiers optimized?
Select low-noise amplifiers in your design and use shielding, filters, and precise power management to minimize external noise. High-quality resistors should be used wherever possible and PCB layout should be optimized to reduce noise coupling.
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3. How to choose the right operational amplifier?
Parameters such as input offset voltage, input bias current, gain bandwidth product, slew rate, noise characteristics, supply voltage, and power consumption should be considered when selecting an operational amplifier to meet the needs of a particular application.
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4. Why do buffer amplifiers have high input impedance and low output impedance?
A high input impedance ensures that no load is applied to the preamplifier circuitry, preventing signal degradation, while a low output impedance provides a large driving capacity, ensuring that the signal can be passed on to subsequent circuits without loss.
