Product Overview

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

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party

Product details

Technical Specifications

IC Type

Current Source

Supply Voltage Max

40V

Output Current Range Max

No. of Pins

3 Pin

Operating Temperature Range

0°C to +70°C

Product Range

Current Regulator Case Style

TO-92

Forward Current If(AV)

Power Dissipation Pd

200mW

Supply Voltage Min

800mV

Output Current Range Min

IC Case / Package

TO-92

Initial Accuracy

Qualification

SVHC

No SVHC (07-Jul-2017)

Forward Current If

Forward Voltage

30V

Other details

Brand	ANALOG DEVICES
Part Number	LM334Z#PBF
Quantity	Each
Technical Data Sheet EN

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Current Regulators

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