User guide

Typical Applications (Continued)
Buffer for Photoconductive Cell
00569751
Generating Negative Output Impedance
00569723
*Z
OUT
≈ −16
•
R1 (R1/V
IN
must not exceed I
SET
)
In-Line Current Limiter
00569709
*Use minimum value required to ensure stability of protected device. This
minimizes inrush current to a direct short.
Schematic Diagram
FET Cascoding for Low Capacitance and/or Ultra High Output Impedance
00569721
*Select Q1 or Q2 to ensure at least 1V across the LM134. V
p
(1 −
I
SET
/I
DSS
) ≥ 1.2V.
00569722
FIGURE 4.
LM134/LM234/LM334
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