Wing Shing WS336Z-2.5 Datasheet
Rev.
Features
• Low temperature coefficient
• Guaranteed temperature stability 4mV typical
•0.2Ω dynamic impedance
• ±1.0% initial tolerance available
• Easily trimmed for minimum temperature drift
Description
The WS336-2.5 integrated Circuits are precision 2.5V
shunt regulators. The monolithic IC voltage references operates as a low temperature coeffcient 2.5V zener with 0.2ohm
dynamic impedance. A third terminal on the WS336-2.5
allow the reference voltage and temperature coefficent to be
trimmed easily. WS336-2.5 are useful as a precision 2.5V
low voltage reference for digital voltmeters, power supplies
or op amp circuitry. The 2.5V make it convenient to obtain a
stable reference from low voltage supplies. Further, since the
WS336-2.5 operate as shunt regulators, they can be used
as either a positive or negative voltage reference.
Internal Block Diagram
Absolute Maximum Ratings
Electrical Characteristics
(0°C < TA < +70°C, unless otherwise specified)
Parameter Symbol Value Unit
Reverse Current I
R
15 mA
Forward Current I
F
10 mA
Operating Temperature Range KA336-2.5/B T
OPR
0 ~ + 70 °C
Storage Temperature Range T
STG
- 60 ~ + 150 °C
Parameter Symbol Conditions
WS336-2.5
Min. Typ. Max. Min. Typ. Max. Unit
Reverse Breakdown
Voltage
V
R
TA = +25°C
I
R
= 1mA
2.44 2.49 2.54 V
Reverse Breakdown
Change with Current
∆V
R
/∆I
R
TA = +25°C
400uA ≤I
R
≤ 10mA
-2.601 mV
Reverse Dynamic
Impedance
Z
D
TA = +25°C
I
R
= 1mA
- 0.2 1 Ω
Temperature Stability ST
T
IR = 1mA
-1.86 mV
Reverse Breakdown
Change with Current
∆V
R
/∆IR 400uA ≤ I
R
≤10mA - 3 12 mV
Reverse Dynamic
Impedance
Z
D
IR = 1mA
-0.41 Ω
Long Term Stability
In reference voltage
ST
I
R
= 1mA
- 20 - ppm/Khr
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