MPY100AM - Precision Analog Multiplier/Divider | Texas Instruments
MPN: MPY100AM β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.4 | $114.00 |
| 100 | $10.2 | $1,020.00 |
| 500 | $9.1 | $4,550.00 |
| 1,000 | $8.25 | $8,250.00 |
Drop-in alternatives for MPY100AM β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
MPY100AMQ
β Drop-Inπ Reference alternative (not in catalog)
MPY100AM10
β Drop-Inπ Reference alternative (not in catalog)
MPY100AG
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View Datasheet βMPY100AM Maximum Ratings & Electrical Characteristics
| Function | Multiplier/Divider (four-quadrant multiplication, division, square root) |
| Input Type | Differential input |
| External Trimming | Not required |
| Accuracy | 100% tested and guaranteed |
| Noise Characteristic | Low noise (datasheet quotes 10 kHz) |
| Design | Highly reliable one-chip (monolithic laser-trimmed) design |
| Package | TO-100 metal can, 10-pin |
| Alternate Packages | DIP or TO-100 type package (family) |
| Temperature Range | Wide temperature operation |
| Mounting Type | Through Hole |
MPY100AM dip or to-100 type package (family) Pin Configuration Guide
Complete pinout information for MPY100AM (dip or to-100 type package (family) package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for MPY100AM.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
MPY100AM is suitable for 6 applications: Analog Signal Conditioning, Modulation and Demodulation, RMS-to-DC Conversion, Power Measurement in Instrumentation, Analog Computing and Control Loops, Test and Measurement Equipment.
Analog Signal Conditioning
The MPY100AM fits analog signal-conditioning front ends where gain, scaling, or nonlinear correction must be applied to bipolar sensor signals. Its four-quadrant multiplication handles signals of either polarity, and the differential inputs allow direct connection across bridge or shunt sources without an additional instrumentation stage. Because the transfer function is laser-trimmed at the factory, the classic external scale-factor and offset potentiometers of discrete multiplier cells are eliminated, reducing calibration labor in production. The one-chip monolithic design also improves thermal tracking between the multiplier core and output amplifier compared with hybrid constructions, holding accuracy stable over the industrial temperature range.
Recommended
Modulation and Demodulation
For amplitude modulation, synchronous detection, and lock-in style demodulation, the MPY100AM multiplies a carrier with a modulating signal in a single device. The differential X and Y inputs accept bipolar carrier and signal voltages, producing a true four-quadrant product that contains the sum and difference frequency components needed for detection. Low noise performance quoted at 10 kHz in the datasheet helps preserve signal-to-noise ratio in narrowband measurement channels. Since no external trimming is required, carrier-leak nulling networks can be simplified to a single offset adjustment at the summing input, and the TO-100 metal can provides inherent shielding against electrically coupled carrier feedthrough in sensitive receivers.
Recommended
RMS-to-DC Conversion
In an RMS-to-DC converter built around the square-then-average-then-square-root method, the MPY100AM supplies both nonlinear operations. Configured as a squarer, its four-quadrant core squares the input waveform; after an RC averaging stage, the same device wired for square-root mode takes the root of the mean-square value. The 100% tested and guaranteed accuracy stated in the datasheet means the overall converter error budget is dominated by the averaging network, not multiplier trim. The metal can package supports stable thermal behavior during long averaging periods. This analog approach suits panel meters and legacy instrumentation where a dedicated RMS IC is unavailable or where waveform class varies.
Recommended
Power Measurement in Instrumentation
True power in a single-phase system equals the product of instantaneous voltage and current, and the MPY100AM performs exactly this multiplication in analog form. Connect the voltage-scaled signal to the X differential input and the current-derived signal from a shunt or transformer to the Y input; the output is proportional to instantaneous power, and low-pass filtering yields average power directly. The differential inputs reject common-mode content from the current sensing path, and the laser-trimmed scale factor removes a calibration step from each instrument produced. The wide temperature operation specified by the manufacturer supports bench and field instrumentation environments without seasonal recalibration.
Recommended
Analog Computing and Control Loops
The MPY100AM serves analog computation blocks in control systems, such as computing the product of two control variables, implementing variable gain VCA stages, or generating a division term for ratio control. The datasheet highlights that division and square rooting are available without external amplifiers or potentiometers, which historically made this device a compact analog computer element. Its one-chip design keeps the compute core and output stage at the same die temperature, improving loop stability in slow analog controllers. The 10-pin metal can layout also fits the point-to-point wiring style common in maintaining vintage analog control and simulation equipment.
Recommended
Test and Measurement Equipment
Bench instruments such as function generators, analog computers, gain-controlled amplifiers, and analyzer front ends use the MPY100AM wherever a signal must be scaled by another signal. Its guaranteed 100%-tested accuracy supports metrology-grade instruments without field trim, and low noise characterized at 10 kHz preserves measurement resolution in audio-band and low-frequency analysis. The TO-100 metal can package eases socketed serviceability, a practical advantage in long-life laboratory hardware. Because the part remains available through broker channels as of 2026-09-13, maintenance of installed legacy test equipment can continue without board redesign.
Recommended
Recommended Products Summary
Engineering reference data for MPY100AM β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPY100AMQ | MPY100AM10 | MPY100AG |
|---|---|---|---|---|
| Package | TO-100 (10-pin metal can) | TO-100 (10-pin metal can) - same | TO-100 (10-pin metal can) - same | TO-100 (10-pin metal can) - same family |
| Brand | Texas Instruments (Burr-Brown) | Texas Instruments (Burr-Brown) | Texas Instruments (Burr-Brown) | Texas Instruments (Burr-Brown) |
| Function | Four-quadrant multiplier/divider | Four-quadrant multiplier/divider | Four-quadrant multiplier/divider | Four-quadrant multiplier/divider |
| External Trimming | Not required | Not required | Not required | Not required |
| Accuracy | 100% tested and guaranteed | 100% tested and guaranteed | 100% tested and guaranteed | 100% tested and guaranteed |
| Grade Suffix | AM | AMQ | AM10 | AG |
| Supply Voltage | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Bandwidth | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Mounting | Through Hole | Through Hole | Through Hole | Through Hole |
Key Differentiators
- Factory laser-trimmed accuracy with no external trimming (vs AD534)
- Metal can package for shielding and serviceability (vs AD534)
- Single-chip division and square-root without external amplifiers (vs MPY100AMQ / MPY100AM10)
Design Notes
Use clean, well-decoupled dual supplies for the MPY100AM, as analog multiplier error terms include supply-feedthrough components. Place 100 nF ceramic decoupling capacitors directly at the supply pins with a solid ground reference. Estimated: keep supply ripple well below the multiplier error floor; for a part rated for 0.5%-class accuracy, maintaining supply ripple under roughly 10 mV keeps its contribution below 1% of the error budget. Verify exact supply limits in the official MPY100 datasheet electrical characteristics table before design freeze.
Although the MPY100AM is a through-hole metal can, layout still matters: keep the differential X and Y input traces short, balanced, and away from high-swing output or carrier lines to limit feedthrough. Take advantage of the TO-100 case for local shielding by tying the can per the datasheet recommendation. Use a star or solid ground plane region under the multiplier, and keep the output summing node (with its feedback resistor) physically close to the device to minimize stray capacitance that can cause peaking or instability.
A common pitfall is adding scale-factor trim potentiometers from discrete-multiplier practice - the MPY100AM is factory laser-trimmed and 100% tested, so external trimming networks usually add error and drift rather than improve accuracy. Another pitfall: leaving the Z (summing) input improperly terminated shifts the transfer function from multiply to divide mode unintentionally; confirm the wiring diagram for the intended operation (multiplication, division, or square root) in the official datasheet before prototyping.
Compliance Information
Compliance status not stated in provided distributor data. As a legacy Burr-Brown metal-can part, RoHS/REACH status should be confirmed with Texas Instruments before shipping into restricted markets.
