LTZ1000 Datasheet, PDF (7/8 Pages) Linear Technology – Ultra Precision Reference

TYPICAL APPLICATIONS
7V Positive Reference Circuit
2N3904
1k ₇
5
A1
LT1013
6
R4 R3 ₃
R2
13k 70k
70k
8
5
10k
7
1M
4
0.1μF
400k*
1
0.1μF
R5
R1
1k
120Ω
LTZ1000/LTZ1000A
ZENER + SENSE
V⁺ 15V
3₊ 8
A2
LT1013
2_–
4
1N4148
1
0.002μF
ZENER – SENSE
GROUND
ZENER – FORCE
2
1N4148
*PROVIDES TC COMPENSATION, DELETE FOR LTZ1000A
APPROXIMATE CHANGE IN REFERENCE VOLTAGE FOR A 100ppm (0.01%) CHANGE IN RESISTOR VALUES:
R1
R2
R3
R4/R5 RATIO
$R(Ω)
0.012Ω
7Ω
7Ω
$R = 0.01%
$V_Z
1ppm
0.3ppm
0.2ppm
1ppm
BOTH A1 AND A2 CONTRIBUTE LESS THAN 2μV OF OUTPUT DRIFT OVER A 50°C RANGE
HEATER RETURN
(TIED TO GROUND)
1000 TA06
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
1000afc
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