TS821AILT

Electrical characteristics TS821
4/9
Table 5. TS821B (0.5% precision) T
amb
= 25°C
(1)
(unless otherwise specified)
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
k
Reverse breakdown voltage I
k
= 100μA 1.219 1.225 1.231 V
Reverse breakdown voltage
tolerance
I
k
= 100μA
-40°C < T
amb
< +85°C
-6
-16
+6
+16
mV
I
k-min
Minimum operating current
T
amb
= 25°C 40 45
μA
-40°C < T
amb
< +85°C 50
ΔV
ref
/ΔT Average temperature coefficient I
k
= 100μA 120 ppm/°C
ΔV
k
/ΔI
k
Reverse breakdown voltage change
with operating current range
I
k-min
< I
k
< 1mA
-40°C < T
amb
< +85°C
0.3 0.7
1
mV
1mA < I
k
< 12mA
-40°C < T
amb
< +85°C
2.5 5
7
R
ka
Static impedance ΔI
k
= 45μA to 1mA 0.25 0.5 W
K
vh
Long term stability I
k
= 100μA, t = 1000hrs 120 ppm
En Wide band noise I
k
= 100μA 10Hz < f < 10kHz 200 nV/Hz
1. Limits are 100% production tested at 25°C. Behavior at the temperature range limits is guaranteed through correlation and
by design.
TS821 Electrical characteristics
5/9
Figure 1. Reference voltage versus cathode
current
Figure 2. Reference voltage versus cathode
current
-1
-0.5
00.51
1.5
Reference voltage (V)
-8
-4
0
4
8
12
Cathode current (mA)
-1
-0.5
0
0.5
1
1.5
Reference voltage (V)
-50
0
50
100
Cathode current (µA)
Figure 3. Test circuit Figure 4. Reference voltage versus
temperature
Ik=(Vin-Vref)/R
Vout=Vref
R
-40 -20 0 20 40 60 80
Temperature (°C)
1.19
1.2
1.21
1.22
1.23
1.24
1.25
1.26
Cathode voltage (V)
+0.5%
-0.5%
-1%
+1%
-2%
+2%
Figure 5. Static impedance versus
temperature
Figure 6. Noise voltage versus frequency
-40 -20 0 20 40 60 80
Temperature (°C)
0.2
0.21
0.22
0.23
0.24
0.25
Static impedance (Ohms)
0 1 10 100 1,000 10,000
Frequency (Hz)
0
100
200
300
400
500
600
700
800
Noise voltage (nV/VHz)
CL=10µF
C
L
=0µF
C
L
=100µF
Package information TS821
6/9
3 Package information
In order to meet environmental requirements, STMicroelectronics offers these devices in
ECOPACK
®
packages. These packages have a lead-free second level interconnect. The
category of second level interconnect is marked on the package and on the inner box label,
in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an STMicroelectronics
trademark. ECOPACK specifications are available at: www.st.com
.
Figure 7. Pulse response for I
k
=100µA Figure 8. Test circuit for pulse response at
I
k
=100µA
0246810
Time (µs)
3V
0V
1.225V
Input
Output
0V
Ik=100µA
Output
18 K
Ω
Pulse
Generator
Intput
Figure 9. Pulse response for I
k
=1mA Figure 10. Test circuit for pulse response at
I
k
=1mA
0246810
Time (µs)
3V
0V
1.225V
Input
Output
0V
Ik=1mA
Output
1.8 K
Ω
Pulse
Generator
Intput

TS821AILT

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Voltage References 1.225V Micropower 1%
Lifecycle:
New from this manufacturer.
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