Overview
The MPY634KUG4, produced by Texas Instruments, is a wide bandwidth, high accuracy, four-quadrant analog multiplier. This component is designed for precision analog signal processing and offers a range of functionalities including multiplication, squaring, division, and square-rooting. Its accurately laser-trimmed multiplier characteristics ensure high accuracy and ease of use with minimal external trimming. The MPY634 features an internal wide-bandwidth operational amplifier, which simplifies design complexity and enhances performance at high frequencies.
Key Specifications
| Parameter | Min | Max | Units | |
|---|---|---|---|---|
| Transfer Function Total Error (–10V ≤ X, Y ≤ +10V) | ±2.0 | ±1.0 | 0.8 | % 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 | |
| Common-Mode Input Voltage Range (VDIFF = 0) | ±10 | ±10 | V | |
| Offset Voltage X, Y | ±25 | ±100 | ±5 | mV |
| Supply Voltage: Rated Performance | ±15 | ±15 | VDC | |
| Supply Current, Quiescent | 4 | 6 | mA | |
| Operating Temperature Range | –40 | +85 | °C |
Key Features
- Wide Bandwidth: Up to 10MHz typical, enabling signal processing at IF, RF, and video frequencies.
- High Accuracy: ±0.5% maximum four-quadrant accuracy.
- Internal Wide-Bandwidth Op Amp: Reduces design complexity and enhances performance.
- Ease of Use: Minimal external trimming required due to accurately laser-trimmed multiplier characteristics.
- Adjustable Scale Factor: User-selected scale factors from 0.1 to 10 using external feedback resistors.
- Low Cost: Economical solution for precision analog signal processing.
- Differential Inputs: Allows configuration as a multiplier, squarer, divider, square-rooter, and other functions.
- Precise Voltage Reference: Provides accurate setting of the scale factor.
Applications
- Precision Analog Signal Processing: Ideal for applications requiring high accuracy and wide bandwidth.
- Modulation and Demodulation: Capable of frequency mixing, balanced modulation, and demodulation with excellent carrier rejection.
- Voltage-Controlled Amplifiers: Can be used in voltage-controlled amplifier circuits.
- Video Signal Processing: Suitable for video frequency signal processing.
- Voltage-Controlled Filters and Oscillators: Can be configured as part of voltage-controlled filters and oscillators.
Q & A
- What is the typical bandwidth of the MPY634?
The MPY634 has a typical bandwidth of 10MHz.
- What is the maximum four-quadrant accuracy of the MPY634?
The maximum four-quadrant accuracy is ±0.5%.
- Does the MPY634 require external trimming?
No, the MPY634 has accurately laser-trimmed multiplier characteristics, minimizing the need for external trimming.
- What is the range of the adjustable scale factor?
The scale factor can be adjusted from 0.1 to 10 using external feedback resistors.
- What are the typical applications of the MPY634?
The MPY634 is used in precision analog signal processing, modulation and demodulation, voltage-controlled amplifiers, video signal processing, and voltage-controlled filters and oscillators.
- What is the operating temperature range of the MPY634?
The operating temperature range is –40°C to +85°C.
- What is the supply voltage range for rated performance?
The supply voltage range for rated performance is ±15VDC.
- How much quiescent current does the MPY634 consume?
The quiescent current is typically 4 to 6 mA.
- Can the MPY634 be used as a divider or square-rooter?
- What is the output impedance of the MPY634 at frequencies up to 1kHz?
The output impedance is 0.1 Ω at frequencies up to 1kHz.
