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LM334D Datasheet(PDF) 3 Page - STMicroelectronics

Part No. LM334D
Description  Three terminal adjustable current sources
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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LM134-LM234-LM334
Electrical characteristics
3/16
3
Electrical characteristics
Tj = +25°C with pulse testing so that junction temperature does not change during testing
(unless otherwise specified)
Table 2.
Electrical characteristics
Parameter
LM134 - LM234
LM334
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
Set current error (V+ = +2.5V) -(1)
10µA
≤ Iset ≤ 1mA
1mA
≤ Iset ≤ 5mA
2µA
≤ Iset ≤ 10µA
3
5
8
6
8
12
%
Ratio of set current to V
- current
10µA
≤ Iset ≤ 1mA
1mA
≤ Iset ≤ 5mA
2µA
≤ Iset ≤ 10µA
14
18
14
14
23
14
18
14
14
26
Minimum operating voltage
2µA
≤ Iset ≤ 100µA
100µA
≤ Iset ≤ 1mA
1mA
≤ Iset ≤ 5mA
0.8
0.9
1
0.8
0.9
1
V
Average change in set current with input voltage
2µA
≤ Iset ≤ 1mA
+1.5V
≤ V+ ≤ +5V
+5V
≤ V+ ≤ +40V
1mA
≤ Iset ≤ 5mA
+1.5V
≤ V+ ≤ +5V
+5V
≤ V+ ≤ +40V
0.02
0.01
0.03
0.02
0.05
0.03
0.02
0.01
0.03
0.02
0.1
0.05
% / V
Temperature dependence of set current - (2)
25µA
≤ Iset ≤ 1mA
0.96 T
T
1.04 T 0.96 T
T
1.04 T
Effective shunt capacitance
15
15
pF
1.
The set current is the current flowing into the V+ pin. It is determined by the following formula:
Iset = 67.7mV/Rset (Tj = +25°C)
The set current error is expressed as a percent deviation from this amount.
2.
Iset is directly proportional to absolute temperature (°K). Iset at any temperature can be calculated from
Iset = Io (T/To)
where Io is Iset measured at To (°K).




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