Rejustor-Based Products
The Rejustor, from Microbridge, is an electrically adjustable resistor that can be precisely adjusted, in-circuit, to calibrate and compensate analog circuits and systems. Low-TCR Rejustors are resistance-only adjustable, available in standard and low-power duals and low-power singles. eTC Rejustors provide passive temperature compensation in addition to resistive calibration (the only passive, adjustable TCR resistor on the market). High-Temperature Rejustors provide stable operation from -55C up to +230C. Active CMOS Rejustor Amplifier Products integrate Rejustors with linear CMOS amplifier elements, to provide a verstaile range of stable linear amplification and temperature compensation solutions
Low TCR Rejustors
Microbridge manufactures Low-TCR Rejustors as standard products. These devices offer resistance-only adjustment with stable TCR across the adjustable range. Available in QFN or SOIC packages for PCB mounting, these devices are used to adjust sensors, amplifiers, regulators, optical components and in a variety of other applications. Low TCR Rejustors are available in tape and reel, or in tubes for sample quantities.
- Resistance-adjustment
- Adjustment range: 30% down from as-manufactured resistance
- Bidirectional adjustment within active range
- Adjustment resolution to 0.1%, or better
- Precision Temperature coefficient as resistor is adjusted
- TCR: 0±100ppm/K
- Two electrically isolated Rejustors per package
Datasheets
Standard Product - Available in QFN or SOIC
Download a white paper [pdf].
| Part Number [PDF Download] |
Ratio | Resistance Range R1 |
Resistance Range R2 |
SOIC Order Code |
QFN Order Code |
|---|---|---|---|---|---|
| MBD-153-AS | 1:1 | 10.5k - 15k | 10.5K - 15k | 111N | 111C |
| MBD-472-AS | 1:1 | 3.3k - 4.7k | 3.3k - 4.7k | 111E | 1111 |
| MBD-903-AS | 1:1 | 63K - 90K | 63K - 90K | 111P | 111D |
| MBD-103-AS | 1:1 | 7K - 10K | 7K - 10K | 111F | 1112 |
| MBD-103-BS | 1:2 | 7K - 10K | 14K - 20K | 111H | 1115 |
| MBD-103-CS | 1:5 | 7K - 10K | 35K - 50K | 111J | 1117 |
| MBD-103-ES | 1:9 | 7K - 10K | 63K - 90K | 111L | 1110 |
Low Power Products - Available in QFN
Microbridge also manufactures Low-TCR Rejustors as low-power products with the same benefits as listed above. Available only in QFN packaging as tape and reel, or in tubes for sample quantities.
| Part Number [PDF Download] |
Ratio | Resistance Range R1 |
Resistance Range R2 |
QFN Order Code |
|---|---|---|---|---|
| MBD-472-AL | 1:1 | 3.3k - 4.7k | 3.3k - 4.7k | 111R |
| MBD-902-AL | 1:1 | 6.3k - 9k | 6.3k - 9k | 111T |
| MBD-153-AL | 1:1 | 10.5K - 15K | 10.5K - 15K | 111Y |
| MBD-333-AL | 1:1 | 23K - 33K | 23K - 33K | 111Z |
| MBD-153-KL | 1:3 | 10.5K - 15K | 31.5K - 45K | 111U |
| MBD-472-CL | 1:5 | 3.3K - 4.7K | 16.5K - 23.5K | 1121 |
| MBD 902-CL | 1:5 | 6.3K - 9K | 31.5K - 45K | 1127 |
| MBD-902-XL | 1:7 | 6.3K - 9K | 44K - 63K | 111X |
Low-TCR Singles - Available in QFN
Microbridge also manufactures Low-TCR Rejustor singles as low-power products with the same benefits as listed above. Available only in QFN packaging in reels, sample sizes available.
| Part Number [PDF Download] |
Resistance Range R1 |
QFN Order Code |
|---|---|---|
| MBS-472-AL | 3.3k - 4.7k | 115F |
| MBS-902-AL | 6.3k - 9k | 115H |
| MBS-153-AL | 10k - 15k | 115J |
| MBS-333-AL | 22k - 33k | 115L |
eTC Rejustors
The eTC Rejustor provides the next-generation solution for passive calibration and temperature compensation. eTC Rejustors are passive resistive devices with adjustable resistance and TCR (temperature coefficient of resistance). These devices are used not only to correct for variation in offset, but also for variation in temperature sensitivity and drift. eTC Rejustors are typically used in circuit applications where high precision and temperature stability is required and the exact value of the desired resistance and temperature correction factor depends on variation in other circuit components – for example, batch-to-batch or unit-to-unit manufacturing variations, or where packaging-induced stresses cause significant changes in electrical output.
The ohmic value and TCR (Temperature Coefficient of Resistance) of an eTC Rejustor can be adjusted independently. Both resistance and TCR can be adjusted many times using analog signals. Once adjusted these parameters hold their final value indefinitely, unless they are re-adjusted.
| Part Number [PDF Download] |
Ratio | Resistance Range R1 |
Resistance Range R2 |
SOIC Order Code |
QFN Order Code |
|---|---|---|---|---|---|
| MBT-303-A | 1:1 | 21k - 30k | 21k - 30k | 112R | 112L |
| MBW-303 | - | - | - | 5111 |
eTC App Note (PDF 354K)
High Temperature Rejustors
High Temperature Rejustors are precision-adjustable passive resistors designed for extended operating temperature range, from -55C to +230C
| Part Number [PDF Download] |
Operating Range | R1, R2 Range | Order Code | Package |
|---|---|---|---|---|
| MBH-293-AS, Type 1 | -55 to + 230 | 21K - 27K | 115P | Die |
| MBH-293-AS, Type 2A | +150 to + 200 | 23K - 29K | 115R | Die |
| MBH-293-AS, Type 2B | +175 to + 225 | 23K - 29K | 115S | Die |
Analog ICs with Rejustors
Active CMOS Products contain both CMOS linear amplifier elements with integrated Rejustors to provide a verstaile range of stable linear amplification and temperature compensation solutions.
| Part Number [PDF Download] |
Description | TC-Gain (ppm/K) |
Order Code | Package |
|---|---|---|---|---|
| MBSTC-02A | Chopper Stabilized Temperature Compensating Amplifier | 900 to 1900 | 7113 | QFN-24 |
| MBSTC-02B | Chopper Stabilized Temperature Compensating Amplifier | 1700 to 2700 | 7115 | QFN-24 |