ANALOG DEVICES LM334Z#PBF Current Source And Temp Sensor, 30 V, 200 mW, TO-92-3

LM334Z#PBF is a LM134 series, constant current source and temperature sensor. It is a three-terminal current source designed to operate at current levels from 1µA to 10mA, as set by an external resistor. This 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 the 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. It is used in applications such as 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.

• Operating voltage range from 0.8V to 40V
• Set current error (V+ = 2.5V) is 6% maximum at (10µA ? ISET ? 1mA)
• Average change in set current with input voltage is 0.02%/V typical at (1.5V ? V+ ? 5V)
• Effective shunt capacitance is 15pF typical
• 1µA to 10mA operation, 0.02%/V regulation
• Can be used as linear temperature sensor, draws no reverse current
• Operating temperature range from 0°C to 70°C
• 3-lead plastic TO-92 package

Notes

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