Overview
The MPY634KUE4, produced by Texas Instruments, is a wide bandwidth, high accuracy, four-quadrant analog multiplier. It is designed to be highly versatile and easy to use, with accurately laser-trimmed multiplier characteristics that minimize the need for external trimming. This component features differential X, Y, and Z inputs, allowing it to be configured as a multiplier, squarer, divider, square-rooter, and other functions while maintaining high accuracy.
The MPY634KUE4 is capable of signal processing at IF, RF, and video frequencies, thanks to its wide bandwidth of 10 MHz. It includes an internal wide-bandwidth op amp, which reduces design complexity compared to other high-frequency multipliers and balanced modulator circuits. The component is also capable of performing frequency mixing, balanced modulation, and demodulation with excellent carrier rejection.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Transfer Function Total Error (–10V ≤ X, Y ≤ +10V) | ±2.0 | ±1.0 | ±0.5 | % of full scale |
| Wideband Noise (f = 10Hz to 5MHz) | 1 | 1 | µV/√Hz | |
| Output Voltage Swing | ±11 | ±11 | V | |
| Output Impedance (f ≤ 1kHz) | 0.1 | 0.1 | Ω | |
| Output Short Circuit Current (RL = 0, TA = min to max) | 30 | 30 | mA | |
| Amplifier Open Loop Gain (f = 50Hz) | 85 | 85 | dB | |
| Input Voltage Range (Differential VIN, VCM = 0) | ±12 | ±12 | V | |
| Supply Voltage: Rated Performance | ±15 | ±15 | VDC | |
| Operating Temperature Range | –40 | +85 | °C |
Key Features
- Wide Bandwidth: 10 MHz typical, allowing signal processing at IF, RF, and video frequencies.
- High Accuracy: ±0.5% max four-quadrant accuracy.
- Internal Wide-Bandwidth Op Amp: Reduces design complexity and improves performance.
- Easy to Use: Minimizes the need for external trimming due to accurately laser-trimmed multiplier characteristics.
- Low Cost: Offers a cost-effective solution for various analog signal processing applications.
- Differential Inputs: Allows configuration as a multiplier, squarer, divider, square-rooter, and other functions.
- Adjustable Scale Factor: User-selected scale factors from 0.1 to 10 using external feedback resistors.
Applications
- Precision Analog Signal Processing: Ideal for applications requiring high accuracy and wide bandwidth.
- Modulation and Demodulation: Capable of performing frequency mixing, balanced modulation, and demodulation with excellent carrier rejection.
- Voltage-Controlled Amplifiers: Suitable for applications where the gain needs to be controlled by an external voltage.
- Video Signal Processing: Handles video frequencies efficiently.
- Voltage-Controlled Filters and Oscillators: Can be used in circuits requiring voltage-controlled filtering or oscillation.
Q & A
- What is the typical bandwidth of the MPY634KUE4?
The typical bandwidth of the MPY634KUE4 is 10 MHz.
- What is the maximum four-quadrant accuracy of the MPY634KUE4?
The maximum four-quadrant accuracy is ±0.5%.
- What types of configurations can the MPY634KUE4 be used for?
The MPY634KUE4 can be configured as a multiplier, squarer, divider, square-rooter, and other functions.
- How does the internal wide-bandwidth op amp benefit the design?
The internal wide-bandwidth op amp reduces design complexity compared to other high-frequency multipliers and balanced modulator circuits.
- What is the operating temperature range of the MPY634KUE4?
The operating temperature range is –40°C to +85°C.
- Can the scale factor of the MPY634KUE4 be adjusted?
Yes, the scale factor can be adjusted from 0.1 to 10 using external feedback resistors.
- What are some common applications of the MPY634KUE4?
Common applications include precision analog signal processing, modulation and demodulation, voltage-controlled amplifiers, video signal processing, and voltage-controlled filters and oscillators.
- How does the MPY634KUE4 handle noise and feedthrough?
The component has a wideband noise specification and feedthrough attenuation, ensuring minimal noise and feedthrough in its operation.
- What is the output voltage swing of the MPY634KUE4?
The output voltage swing is ±11 V.
- What is the recommended power supply bypassing for the MPY634KUE4?
The power supplies should be bypassed with high-frequency ceramic capacitors located near the power supply connections.
