ltz1000a Linear Technology Corporation, ltz1000a Datasheet - Page 7

• Manufacturer Part Number: ltz1000a
• Description: Ultra Precision Reference
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIONS
2N3904
*PROVIDES TC COMPENSATION, DELETE FOR LTZ1000A
BOTH A1 AND A2 CONTRIBUTE LESS THAN 2μV OF OUTPUT DRIFT OVER A 50°C RANGE
APPROXIMATE CHANGE IN REFERENCE VOLTAGE FOR A 100ppm (0.01%) CHANGE IN RESISTOR VALUES:
R4/R5 RATIO
1
2
R1
R2
R3
1k
7
LT1013
A1
R = 0.01%
0.012Ω
R(Ω)
7Ω
7Ω
+
–
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.
5
6
1M
0.1μF
0.1μF
400k*
10k
0.3ppm
0.2ppm
7V Positive Reference Circuit
1ppm
1ppm
V
Z
1N4148
R5
1k
R4
13k
8
R3
70k
3
4
R1
120Ω
5
7
R2
70k
LTZ1000/LTZ1000A
0.002μF
3
2
+
–
LT1013
A2
8
4
1
ZENER + SENSE
V
1N4148
ZENER – SENSE
GROUND
ZENER – FORCE
HEATER RETURN
(TIED TO GROUND)
+
15V
1000 TA06
1000afc
7