Datasheet for LM334Z#TRPBF:
- Manufacturer Part Number : LM334Z#TRPBF
- Manufacturer : AD
- Description : Constant Current Source and Temperature Sensor IC
- Series : LM334S
- Reference Price : USD 1.208
- Our Price : We have a better price, contact us by email
- Product Type : Current Sources
- Function : -
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 3-Lead TO-92
- Pins : 3
- MFG Package Case : 05-08-1410
- Part Type : REEL
- Standard Packing Type : Reel
- Standard Packing Quantity : 2000
- Working Temperature : 0 to 70C
- Other Part Number : LM334Z#TRPBF
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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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 two terminal 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 1mA/°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.
Applications
- 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
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
