MPY100BG - 4-Quadrant Analog Multiplier/Divider | Texas Instruments
MPN: MPY100BG ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.65 | $166.50 |
| 100 | $14.8 | $1,480.00 |
| 500 | $12.95 | $6,475.00 |
| 1,000 | $11.1 | $11,100.00 |
Drop-in alternatives for MPY100BG — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPY100AG
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Contact for price
View Datasheet →MPY100BM
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$14.7 / Unit
View Datasheet →MPY100AM
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$8.25 / Unit
View Datasheet →MPY100SM
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$17.6 / Unit
View Datasheet →AD632SH/883B
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$28.75 / Unit
View Datasheet →AD632TD/883
✅ Drop-In📋 Reference alternative (not in catalog)
MPY100BG Maximum Ratings & Electrical Characteristics
| Function | Analog Multiplier / Divider / Square Root |
| Multiplier Type | 4-Quadrant |
| Transfer Function | W = (X1 - X2)(Y1 - Y2)/10 |
| Scale Factor | 1/10 V |
| Package | 14-CDIP |
| Mounting Type | Through Hole |
| Differential Inputs | Yes (X and Y inputs) |
| External Trimming Required | No |
| Factory Accuracy Test | 100% tested and guaranteed |
| Design | Laser-trimmed one-chip monolithic |
| Category | Linear - Analog Multipliers, Dividers |
| Original Manufacturer | Burr-Brown Corporation (now Texas Instruments) |
MPY100BG 14-cdip Pin Configuration Guide
Complete pinout information for MPY100BG (14-cdip 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 MPY100BG.
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
MPY100BG is suitable for 6 applications: Analog Multiplication and Division, Modulation and Demodulation, RMS-to-DC and Square-Root Computation, Industrial Instrumentation and Process Control, Function Generation and Analog Computing, Power and Energy Measurement.
Analog Multiplication and Division
The MPY100BG is purpose-built for real-time analog multiplication and division: four-quadrant operation accepts signals of either polarity on both differential input pairs, and the laser-trimmed 1/10 V scale factor makes the transfer function deterministic without calibration. Because accuracy is 100% tested and guaranteed at the factory, designers can compute products and ratios directly in the signal path for tasks such as power calculation (V x I) or normalization of a measurement by a reference level. Unlike discrete multiplier cells, the on-chip output amplifier eliminates the external op-amp and trimming potentiometers older designs required, reducing board area and error sources. Division and square-root modes use internal feedback wiring per the TI datasheet, keeping the solution to a single 14-CDIP device.
Recommended
Modulation and Demodulation
In communications front ends, the MPY100BG implements amplitude modulation, suppressed-carrier modulation, and synchronous detection by multiplying a carrier with a modulation or reference signal. Four-quadrant operation is essential here: the output must swing both polarities as the carrier crosses zero, which single-quadrant parts cannot deliver. The differential X and Y inputs reject common-mode noise picked up on long signal lines, and low noise up to 10 kHz keeps the carrier band clean. Because the part is laser trimmed, carrier feedthrough and scale-factor error stay within the guaranteed grade without board-level calibration, a significant advantage over MC1495-class multipliers that require external offset potentiometers. A post-multiplier low-pass filter recovers the demodulated baseband.
Recommended
RMS-to-DC and Square-Root Computation
True-RMS measurement chains square the input signal, average it, and take the square root - and the MPY100BG covers two of those three functions in one device. Wired in the datasheet square-root configuration, it computes the root of an averaged squared signal without external amplifiers or potentiometers, since the laser-trimmed transfer function guarantees accuracy. This suits panel meters, process instrumentation, and audio loudness monitors where crest factor makes average-responding circuits inaccurate. The hermetic ceramic DIP package supports the long-term stability such instruments need, and the 100% factory-tested accuracy grade removes production calibration steps. Polarity limiting in the square-root loop must be respected per the TI datasheet application notes to keep the feedback loop unipolar and stable.
Recommended
Industrial Instrumentation and Process Control
Process controllers frequently need analog computation - multiplying a flow signal by a density signal, dividing a measurement by a span reference, or implementing nonlinear control laws - at millisecond speed without firmware. The MPY100BG performs these operations continuously in hardware with guaranteed, factory-tested accuracy, making behavior deterministic and immune to software faults. Its wide-temperature hermetic ceramic DIP package tolerates industrial cabinet environments, and the through-hole leads suit legacy DIN-rail and backplane boards still common in retrofit projects. Differential inputs allow direct connection to transducer conditioning stages with modest common-mode noise. As a legacy Burr-Brown part, it also serves as a form-fit-function replacement in maintaining installed instrumentation originally designed around the MPY100 family.
Recommended
Function Generation and Analog Computing
Analog function generators synthesize transfer curves such as parabolas (x squared), ratios, and hypotenuse (square-root of sum of squares) circuits by combining multipliers with summing amplifiers. The MPY100BG is a natural core for these circuits because it integrates the multiplier and output amplifier on one laser-trimmed die: wiring the output back to both X and Y inputs yields squaring per the TI datasheet, and combining two squarers with a third divider unit yields vector-magnitude computation. Guaranteed accuracy without trimming means the synthesized function matches theory to the grade specification immediately at power-up. Educational analog-computer reproductions and hybrid signal-processing test rigs also use the MPY100 family for its low cost and self-contained operation in hermetic DIP.
Recommended
Power and Energy Measurement
Instantaneous power equals the product of voltage and current, and the MPY100BG computes that product continuously as a four-quadrant multiplier: one differential input pair receives the scaled voltage waveform, the other the scaled current waveform from a shunt or current transformer. Because both channels accept either polarity, the output faithfully tracks real power through zero crossings and reversing power flow, which half-wave or single-quadrant schemes cannot. The 1/10 V laser-trimmed scale factor makes calibration a matter of input divider ratios, and factory-guaranteed accuracy removes per-unit trimming in production. Averaging the multiplier output yields DC proportional to real power for metering; digitizing it with a delta-sigma ADC supports digital energy registers.
Recommended
Recommended Products Summary
Engineering reference data for MPY100BG — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPY100AG | MPY100BM | AD632SH/883 | AD632TD/883 |
|---|---|---|---|---|---|
| Package | 14-CDIP | 14-CDIP - same | M package variant (per family DIP/TO-100 options) | 14-pin ceramic DIP | 14-pin ceramic DIP |
| Brand | Texas Instruments (Burr-Brown) | Texas Instruments (Burr-Brown) | Texas Instruments (Burr-Brown) | Analog Devices | Analog Devices |
| Function | Multiplier/Divider/Square Root, 4-quadrant | Multiplier/Divider/Square Root, 4-quadrant | Multiplier/Divider/Square Root, 4-quadrant | Multiplier/Divider, 4-quadrant | Multiplier/Divider, 4-quadrant |
| Accuracy Grade | B grade (tighter error) | A grade (wider error) | B grade | [DATA_NEEDED] | T grade (tight AD632 error) |
| External Trimming | Not required | Not required | Not required | Not required (internally trimmed) | Not required (internally trimmed) |
| Scale Factor | 1/10 V | 1/10 V | 1/10 V | 1/10 V (AD632 transfer function) | 1/10 V (AD632 transfer function) |
| Screening | Standard industrial | Standard industrial | Standard industrial | MIL-STD-883 screened | MIL-STD-883 screened |
| Terminal Count | 14 | 14 | 14 | 14 | 14 |
Key Differentiators
- Tighter guaranteed accuracy grade (vs MPY100AG)
- No external trimming required (vs AD632SH/883)
- Single-chip completeness (vs MPY100AM)
Design Notes
Division and square-root configurations use internal feedback of the multiplier into the output amplifier, and these loops are only stable for the signal polarity ranges given in the TI MPY100 datasheet application circuits. Exceeding the polarity limits drives the loop to a rail and can latch the output until power is cycled. Always clamp or offset the denominator input in divider mode so it never crosses zero, and consult the datasheet wiring diagrams rather than assuming op-amp feedback conventions apply unchanged.
As a through-hole ceramic DIP, the MPY100BG benefits from a clean analog ground return: give the X and Y differential input traces short, symmetrical paths and keep switching-regulator or digital clock lines away from the multiplier inputs to preserve the differential common-mode rejection. Use the recommended decoupling from the datasheet on both supply pins with ceramic capacitors placed close to the package, and star-ground at the output amplifier return to prevent ground currents from modulating the 1/10 V scale factor.
Do not substitute grades silently: the MPY100BG is the B accuracy grade, while MPY100AG and MPY100AM carry wider guaranteed error. In a measurement product calibrated against the B-grade budget, dropping to an A-grade part will show as a production yield loss. Conversely, for non-critical modulation tasks the A grade saves cost with identical pinout. Verify the exact grade-specific total error figures in the TI MPY100 datasheet parameter tables before approving any cross within the family.
Compliance Information
Compliance status for this legacy Burr-Brown ceramic-DIP part was not stated in the retrieved web data; confirm on the TI product page before export or mass production.
