LM334Z Linear Technology, LM334Z Datasheet - Page 9

• Manufacturer Part Number: LM334Z
• Description: IC CURRENT SOURCE TO92-3
• Manufacturer: Linear Technology

Specifications of LM334Z

• Function: Current Source
• Voltage - Input: 0.8 ~ 40 V
• Current - Output: 10mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: TO-92-3 (Standard Body), TO-226
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Accuracy: -
• Sensing Method: -
• Other names: LM334ZLT

TYPICAL APPLICATIO S
SCHE ATIC DIAGRA
W
I
Z
COMPLIANCE = –14V TO 12.5V
I
O
O
O
= 10nA
LM134
10
226k
R4
100M
Precision 10nA Current Source
12
1M
R2
R3
15V
V
V
3
2
+
–
LT1004-1.2
–
–15V
+
R
LT1008
4
15V
R1
2.7k
7
W
U
8
200pF
6
Q3
BUFFERED
VOLTAGE
OUTPUT
*SELECT Q1 OR Q2 TO ENSURE AT LEAST 1V
ACROSS THE LM134. V
FET Cascoding for Low Capacitance
and/or Ultrahigh Output Impedance
I
SET
TA14
V
–V
IN
Q1*
C1
50pF
Q7
V
IN
V
+
–
Q2
R
LM334
Q4
R
SET
P
(1 – I
Q5
SET
/I
–V
DSS
V
LM334
LT1004-1.2
IN
IN
Q1
Q2*
Q8
V
V
) 1.2V.
(1.235V)
+
–
I
SET
R
LM334
V
134 SD
Q6
+
R
SET
TA16
R
V
–
1M
1%
Micropower 5V Reference
R
2
3
5.6k
+
–
LM4250
4
22M
7
V
LM134 Series
IN
8
= 6.5V TO 15V
6
150pF
3.01M
1%
V
OUT
= 5V
TA15
9