AS1004 ASTEC, AS1004 Datasheet - Page 3

• Manufacturer Part Number: AS1004
• Description: Micropower Voltage Reference
• Manufacturer: ASTEC

Micropower Voltage Reference
Electrical Characteristics
Electrical Characteristics are guaranteed over full junction temperature range (0 to 70 C). Ambient temperature must be derated based
on power dissipation and package thermal characteristics.
Parameter
Reverse Breakdown Voltage
Average Temperature
Coefficient
Minimum Operating Current
Reverse Breakdown Voltage
Change With Current
Reverse Dynamic Impedance Z
Wide Band Noise
Long Term Stability
Typical Performance Curves
ASTEC Semiconductor
5000
Calculating Average Temperature
Coefficient for the AS1004-1.2 Reference
0
0.5
0
Average Temperature Coefficient =
-10
-5
0
0
0.025 mV/ °C
0.002 %/ °C
20 ppm/ °C
10
Figure 1
V
Symbol
V
I
e
Z (min)
REF
n
20
Z
V
V
Z
V
Temperature (°C)
Z
Z
Z
/ T
/ I
/ T
30
Z
T
40
Test Condition
I
0 C T
I
I
Over Temperature
1 mA I
Over Temperature
I
Over Temperature
I
10 Hz f 10 KHz
I
T
Z
min
min
Z
Z
Z
A
= 100 A, T
= 100 mA, f = 25 Hz
= 100 A
= 100 A
= 25 C 0.1 C
50
I
I
Z
Z
A
Z
20 mA
1 mA
60 70
V
70 C
20 mA
T
REF
J
= 25 C
31
1.245
1.240
1.235
1.230
1.225
1.231
1.225
Min
AS1004-1.2
–55
1.235
1.235
AS1004-1.2 Reference Voltage vs.
Ambient Temperature
I
Typ
Z
0.5
6.5
0.5
6.5
0.2
20
60
20
–35
4
1
= 100 A
–15
1.239
1.245
T
Max
1.5
0.6
1.5
10
10
20
A
1
– Ambient Temperature ( C)
5
Figure 2
2.480
2.470
Min
25
AS1004-2.5
45
2.500
2.500
Typ
0.5
0.5
6.5
6.5
0.8
60
12
60
60
65
AS1004
2.520
2.530
85
Max
1.5
0.9
1.5
20
10
20
1
105
ppm/kH
ppm/ C
Unit
mV
mV
mV
mV
V
V
125
A
V