lh0070 Linear Technology Corporation, lh0070 Datasheet - Page 11

• Manufacturer Part Number: lh0070
• Description: Precision 10v Reference
• Manufacturer: Linear Technology Corporation

APPLICATIO CIRCUITS
EQUIVALENT SCHEMATIC
U
U
15V
IN
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 represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
W
LT1031
GND
*TRIMS 1mA REFERENCE CURRENT
TC BY ± 40ppm/°C. THIS TRIM
SCHEME HAS VERY LITTLE EFFECT ON ROOM
TEMPERATURE CURRENT TO MINIMIZE ITERATIVE
TRIMMING.
OUT
1.24k
1%
Precision DAC Reference with System TC Trim
D4
6.3V
8.87k
1%
IN457
D1
–
A1
10k
1%
TC TRIM*
+
50k
INPUT
Q1
10k
1%
Q2
D2
IN457
50k
D1
D2
D3
50k
ROOM TEMP
TRIM
200k
1%
LT1031 • ES01
Q3
R1
R2
OUTPUT
GND
10.36k
1%
1mA
DAC
LT1031 • AC09
LT1031/LH0070
8.45k
11
1031fb