Overview
The MPY634KU/1K, produced by Texas Instruments, is a wide bandwidth, high accuracy, four-quadrant analog multiplier. This component is designed to provide precise analog signal processing with a minimum of external parts, often eliminating the need for external trimming. Its differential X, Y, and Z inputs allow for various configurations such as a multiplier, squarer, divider, square-rooter, and other functions while maintaining high accuracy. The internal wide-bandwidth op amp reduces design complexity and enables signal processing at IF, RF, and video frequencies.
Key Specifications
| Parameter | Min | Typ | 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 | |
| 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: 10MHz typical
- High accuracy: ±0.5% max four-quadrant accuracy
- Internal wide-bandwidth op amp
- Ease of use with minimal external parts
- Low cost
- Differential X, Y, and Z inputs for versatile configurations
- Accurate internal voltage reference for precise scale factor setting
- Adjustable scale factor from 0.1 to 10 using external feedback resistors
Applications
- Precision analog signal processing
- Modulation and demodulation
- Voltage-controlled amplifiers
- Video signal processing
- Voltage-controlled filters and oscillators
- Frequency mixing and balanced modulation
- Square-rooting and dividing operations
Q & A
- What is the typical bandwidth of the MPY634KU/1K?
The typical bandwidth of the MPY634KU/1K is 10MHz.
- What is the accuracy of the MPY634KU/1K in four-quadrant operation?
The accuracy is ±0.5% max in four-quadrant operation.
- What types of configurations can be achieved with the MPY634KU/1K?
The MPY634KU/1K can be configured as a multiplier, squarer, divider, square-rooter, and other functions.
- What is the output voltage swing of the MPY634KU/1K?
The output voltage swing is ±11V.
- What is the operating temperature range of the MPY634KU/1K?
The operating temperature range is –40°C to +85°C.
- How can the scale factor be adjusted in the MPY634KU/1K?
The scale factor can be adjusted from 0.1 to 10 using external feedback resistors.
- What are some common applications of the MPY634KU/1K?
Common applications include precision analog signal processing, modulation and demodulation, voltage-controlled amplifiers, video signal processing, and voltage-controlled filters and oscillators.
- What is the supply voltage range for the MPY634KU/1K?
The rated performance supply voltage is ±15VDC, but it can operate down to ±8V with reduced input and output range capability.
- How does the internal op amp contribute to the MPY634KU/1K's performance?
The internal wide-bandwidth op amp reduces design complexity and enables signal processing at high frequencies.
- What are the package options available for the MPY634KU/1K?
The MPY634KU/1K is available in a 16-pin SOIC package.
