See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

LP | 3

Temp:

S (-25 to 100)

ECO Plan:

Green (RoHS & no Sb/Br)

LM234Z-3/NOPB


3-Terminal Adjustable Current Source

TI Store Price:

 
 
Qty.Price
1 - 9 $ 2.63
10 - 24 $ 2.37
25 - 99 $ 2.12
100 - 249 $ 1.91
250 - 499 $ 1.72
500 - 749 $ 1.42
750 - 999 $ 1.18
1000 - 9999 $ 1.06

Adjust your quantity during checkout

Texas Instruments LM234Z-3/NOPB

The LM134/LM234/LM334 are 3-terminal adjustable current sources featuring 10,000:1 range in operating current, excellent current regulation and a wide dynamic voltage range of 1V to 40V. Current is established with one external resistor and no other parts are required. Initial current accuracy is ±3%. The LM134/LM234/LM334 are true floating current sources with no separate power supply connections. In addition, reverse applied voltages of up to 20V will draw only a few dozen microamperes of current, allowing the devices to act as both a rectifier and current source in AC applications.

The sense voltage used to establish operating current in the LM134 is 64mV at 25°C and is directly proportional to absolute temperature (°K). The simplest one external resistor connection, then, generates a current with ≈+0.33%/°C temperature dependence. Zero drift operation can be obtained by adding one extra resistor and a diode.

Applications for the current sources include bias networks, surge protection, low power reference, ramp generation, LED driver, and temperature sensing. The LM234-3 and LM234-6 are specified as true temperature sensors with ensured initial accuracy of ±3°C and ±6°C, respectively. These devices are ideal in remote sense applications because series resistance in long wire runs does not affect accuracy. In addition, only 2 wires are required.

The LM134 is specified over a temperature range of −55°C to +125°C, the LM234 from −25°C to +100°C and the LM334 from 0°C to +70°C. These devices are available in TO hermetic, TO-92 and SOIC-8 plastic packages.

View datasheet
View product folder
Order SummaryEdit >
Subtotal: $0.00
Shipping & Handling: -
Total (USD): $0.00