LM234(1997) View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
LM234 Datasheet PDF : 10 Pages
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LM134-LM234-LM334
ELECTRICAL CHARACTERISTICS
Tj = +25oC with pulse testing so that junction temperature does not change during testing
(unless otherwise specified)
Parameter
Set Current Error (V+ = +2.5V) - (note 1)
10µA ≤ ISET ≤ 1mA
1mA ≤ ISET ≤ 5mA
2µA ≤ ISET ≤ 10µA
Ratio of Set Current to V– Current
10µA ≤ ISET ≤ 1mA
1mA ≤ ISET ≤ 5mA
2µA ≤ ISET ≤ 10µA
LM134 - LM234
LM334
Unit
Min. Typ. Max. Min. Typ. Max.
%
3
6
5
8
8
12
14
18
23
14
18
26
14
14
14
14
Minimum Operating Voltage
2µA ≤ ISET ≤ 100µA
100µA ≤ ISET ≤ 1mA
1mA ≤ ISET ≤ 5mA
V
0.8
0.8
0.9
0.9
1
1
Average change in set current with input voltage
2µA
≤ ISET
+1.5V
≤
≤
1mA
V+ ≤
+5V
+5V ≤ V+ ≤ +40V
1mA ≤ ISET
+1.5V
≤
≤
5mA
V+ + ≤
+5V
+5V ≤ V+ ≤ +40V
0.02 0.05
0.01 0.03
0.03
0.02
%/V
0.02 0.1
0.01 0.05
0.03
0.02
Temperature Dependence of set current - (note 2)
25µA ≤ ISET ≤ 1mA
0.96 T T 1.04 T 0.96 T T 1.04 T
Effective Shunt Capacitance
15
15
pF
Notes :
1. Set current is the current flowing into theV+ pin. It is determined by the following formula Iset = 67.7mV/Rset
(Tj = +25oC).
Set current error is expressed as a percent deviation from this amount.
2. Iset is directly proportional to absolute temperature (oK). Iset at any temperature can be calculated from
Iset = IO (T/TO) where IO is Iset measured at TO (oK).
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