Datasheet > MBD-153-KL

MBD-153-KL

更新时间： 2024-10-18 03:50:11

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
5页	134K
描述
Low TCR, 1mW Dual Rejustor⑩ Micro-Resistor

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MBD-153-KL 数据手册

Low TCR, 1mW

Dual Rejustor™ Micro-Resistor

MBD-472-AL

The Rejustor is a precision, electrically-adjustable

resistor from Microbridge. The Rejustor can be

adjusted to a precision of 0.1%, or better. The

Rejustor can be re-adjusted many times bi-

directionally within the active range using standard

hardware and LabVIEW-based Rejust-it calibration

software.

ELECTRICALLY ADJUSTABLE 4.7KΩ 1:1

RESISTOR PAIR

R1ADJ

R2ADJ

HGND

Low-power Rejustors are suitable for applications

where the total power dissipation (in the pair) does

not exceed 1mW.

Figure 1: Functional Block Diagram

As a passive device, there is no warm-up period or

boot-up time. Each Rejustor is independently

adjustable to any value in the 30% adjustment range

while still offering excellent TCR. They are non-

volatile, maintaining their adjusted value indefinitely.

FEATURES

° Electrically adjustable 4.7KΩ 1:1 dual resistor

° Passive, non-volatile variable resistor

° Adjustment range: 30% down from as-

manufactured resistance

Each Low-TCR Rejustor maintains 0ppm/K TCR

across the adjustment range within ±100ppm/K.

Relative TCR between both Rejustors is less than

±50ppm/K.

° Bi-directional adjustment within active range

° Long term stability 0.5%, see Table 5

° Flexibility: Potential for multiple adjustments

° Stable Temperature Coefficient as resistance

is adjusted – TCR: 0±100ppm/K

PARAMETER

SPECIFICATION

4.7KΩ

° Power Rating up to 1.0mW at 70^oC

° Suitable for operation from -40 to +125^oC,

refer to Table 2

Resistance (as-manufactured)

Minimum adjustable resistance

Adjustment Precision

TCR (per Rejustor)

Power dissipation (per Rejustor)

3.3KΩ

0.1% or 0.01%¹

0±100ppm/K

0.5mW

° Passive device, requires no power to operate

or maintain adjustment

° Easy to adjust with Rejust-it software and

external DAC/ADC hardware

BENEFITS

° Precision electrical in-circuit adjustment

° Externally adjust or calibrate parameters on

circuits or sensors at final assembly

° Adjustment process isolated from circuit

allows true in-circuit calibration

° Single chip solution to calibrate voltages,

currents, offsets, gains, etc.

° No mechanical moving parts – suitable for

vibration sensitive applications

° Typical adjust times: ~ 1sec¹.

APPLICATIONS

° Anywhere precision adjustment is required

° Gain and offset adjustment

° Reference voltage or current adjustment

° Precision Voltage Regulator adjustment

° Filter tuning

° RF Amplifier biasing

° Opto-electronics

° Improved reliability; dependability; dust and

moisture resistance over mechanical parts

° Dynamic adjustment provides cost and labor

savings

° Frequency Control devices

° Mechanical or digital potentiometer

replacement

Suitable for high-frequency applications

° Flexibility reduces rework cost

¹Adjustment precision is limited by temperature control, accuracy

of measurement and adjustment equipment and may increase

adjustment time

Information furnished by Microbridge Technologies is believed to be accurate and reliable. However, no responsibility is assumed by Microbridge Technologies for its use, nor for any

infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any

patent or patent rights of Microbridge Technologies. Trademarks and registered trademarks are the property of their respective companies.

Rev. 1.2

July 19, 2007

12 3 4 5

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