LM134H electronic pressure sensors Electronics ICs Chip Integarted Circuts
electronic pressure sensors
,hall effect sensor ic
3-Terminal Adjustable Current Sources
A part of stock list
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| C.I LNK623PG | 10000 | POWER | 1407 |
| C.I STM32F030K6T6 | 10000 | ST | 1549 |
| DIODO ES1J-E3/61T | 180000 | VISHAY | 1642/EJ |
| CAP 0603 10PF 50V NPO 5% CL10C100JB8NNNC | 400000 | SAMSUNG | CCBET1P |
| DIODO 1N5822 AMMO | 1000000 | MIC | 307260623445 |
| TRANS BF422 | 2000 | TOS | 5F |
| DIODO 1.5KE7.5CA-E3/4 | 5000 | VISHAY | 16+ |
| CONECTOR S3B-PH-SM4-TB(LF)(SN) | 3200 | JST | 15+ |
| CONEC. BM06B-SRSS-TB(LF)(SN) |
3000 | JST | 15+ |
| CONECTOR S4B-PH-SM4-TB(LF)(SN) | 9200 | JST | 2015.11 |
| C.I A2982SLWTR-T | 3100 | ALLEGRO | 1642 |
| OPTOACOPLADOR CNY74-4H | 1000 | VISHAY | V413H68 |
| DIODO S1G-E3/61T | 18000 | VISHAY | 1632/SG |
| CI ADS7866IDBVR | 2500 | TI | A66Y |
| CI MSP430F417IPMR | 2500 | TI | 69A2P1W |
| C.I MC14584BDR2G | 3000 | ON | PAC928 |
| C.I PIC12F508-I/SN | 1000 | MICROCHIP | 1624KC6 |
| C.I LM1117IMPX-3.3/NOPB | 2000 | TI | 4ARD/N05B |
Feature
■ 1µA to 10mA Operation
■ 0.02%/V Regulation
■ 0.8V to 40V Operating Voltage
■ Can be Used as Linear Temperature Sensor
■ Draws No Reverse Current
■ Supplied in Standard Transistor Packages
Applicataion
■ Current Mode Temperature Sensing
■ Constant Current Source for Shunt References
■ Cold Junction Compensation
■ Constant-Gain Bias for Bipolar Differential Stage
■ Micropower Bias Networks
■ Buffer for Photoconductive Cell
■ Current Limiter
Description
The LM134 is a three-terminal current source designed to operate at current levels from 1µA to 10mA, as set by an external resistor. The device operates as a true twoterminal current source, requiring no extra power connections or input signals.
Regulation is typically 0.02%/V and terminal-to-terminal voltage can range from 800mV to 40V. Because the operating current is directly proportional to absolute temperature in degrees Kelvin, the device will also find wide applications as a temperature sensor.
The temperature dependence of the operating current is 0.336%/°C at room temperature. For example, a device operating at 298µA will have a temperature coefficient of 1µA/°C. The temperature dependence is extremely accurate and repeatable.
Devices specified as temperature sensors in the 100µA to 1mA range are the LM134-3, LM234-3 and the LM134-6, LM234-6, with the dash numbers indicating ±3°C and ±6°C accuracies, respectively. If a zero temperature coefficient current source is required, this is easily achieved by adding a diode and a resistor.
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