ltz1000a Linear Technology Corporation, ltz1000a Datasheet - Page 6

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

LTZ1000/LTZ1000A
TYPICAL APPLICATIONS
6
Averaging Reference Voltage for Lower Noise and Better Stability
V
0.01%
150Ω
IN
15V
1.6k
30Ω*
200Ω*
OUTPUT
R1
3
4
120Ω
Adjusting Temperature Coeffi cient in Unstabilized Applications
* PULSE HEATER ON AND OFF TO HEAT AND COOL THE REFERENCE. ADJUST
R1 FOR MINIMUM VOLTAGE CHANGE THROUGH A TEMPERATURE CYCLE.
THE –2mV/°C TEMPCO OF THE V
5
7
70k
150Ω
*R = kT
0.022μF
3
2
q I
+
–
C
LT1006
1.6k
30Ω*
I
C
15V
4
1000 TA03
6
BE
1N4148
CANCELS THE +2mV/°C TEMPCO OF THE ZENER.
V
OUT
+
15V
V
IN
1
2
1.5k
HEATER
1N4148
Improving Supply Rejection
150Ω
1 MIN
ON
1 MIN
OFF
50Ω
V
V
1000 TA05
OUT1
OUT2
*
SUPPLY REJECTION
AT V
SUPPLY REJECTION AT
V
1000 TA04
OUT2
OUT1
= 3mV/V
= 20mV/V
1000afc