2.50V MICROPOWER VOLTAGE REFERENCE
1/10
s
2.50V TYP. OUTPUT VOLTAGE
s
ULTRA LOW CURRENT CONSUMPTION:
40
A TYP.
s
HIGH PRECISION @ 25C
2% (Standard version)
1% (A grade)
s
HIGH STABILITY WHEN USED WITH
CAPACITICE LOAD
s
INDUSTRIAL TEMPERATURE RANGE:
-40 to +85C
s
100ppm/C MAXIMUM TEMPERATURE
COEFFICIENT
DESCRIPTION
The TS822 is a low power shunt voltage reference
providing a stable 2.5V output voltage over the in-
dustrial temperature range (-40 to +85C). Avail-
abe in SOT23-3 surface mount package, it can be
designed in applications where space saving is a
critical issue.
The low operating current is a key advantage for
power restricted designs. In addition, the TS822 is
very stable and can be used in a broad range of
application conditions.
APPLICATION
s
Computers
s
Instrumentation
s
Battery chargers
s
Switch Mode Power Supply
s
Battery operated equipments
ORDER CODE
Z = TO92 Plastic package - also available in Bulk (Z), Tape & Reel (ZT)
and Ammo Pack (AP)
LT = Tiny Package (SOT23-3) - only available in Tape & Reel (LT)
PIN CONNECTIONS (top view)
Precision
TO92
SOT23-3
SOT23
Marking
2%
TS822IZ
TS822IL
L223
1%
TS822AIZ
TS822AIL
L222
Single temperature range: -40 to +85C
Z
TO-92
(Plastic Package)
L
SOT23-3L
(Plastic Micropackage)
TS822
2.5V MICROPOWER SHUNT VOLTAGE REFERENCE
March 2002
TS822
2/10
ABSOLUTE MAXIMUM RATINGS
OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
I
k
Reverse Breakdown Current
20
mA
I
f
Forward Current
10
mA
P
d
Power Dissipation
1)
SOT23-3
TO-92
360
625
mW
T
std
Storage Temperature
-65 to +150
C
ESD
Human Body Model (HBM)
2
kV
Machine Model (MM)
200
V
T
lead
Lead Temperature (soldering, 10 seconds)
260
C
1. Pd has been calculated with Tamb = 25C and Rthja = 200C/W for the TO92 package
Rthja = 340C/W for the STO23-3L package
Symbol
Parameter
Value
Unit
I
kmin
Minimum Operating Current
50
A
I
kmax
Maximum Operating Current
15
mA
T
oper
Operating Free Air Temperature Range
-40 to +85
C
TS822
3/10
ELECTRICAL CHARACTERISTICS
TS822 (2% Precision)
Tamb = 25C (unless otherwise specified)
ELECTRICAL CHARACTERISTICS
TS822A (1% Precision)
Tamb = 25C (unless otherwise specified)
Note : Limits are 100% production tested at 25C. Limits over temperature are guaranteed through correlation and by design.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Vk
Reverse Breakdown Voltage
Ik = 100
A
2.45
2.5
2.55
V
Reverse Breakdown Voltage Tolerange
Ik = 100
A
-40C < T < +85C
-50
-66
50
66
mV
Ikmin
Minimum Operating Current
T = 25C
40
50
A
-40C < T < +85C
60
Vref/
T Average Temperature Coefficient
Ik = 100
A
30
100
ppm/C
Vk/
Ik
Reverse Breakdown Voltage Change
with Operating Current Range
Ikmin < Ik < 1mA
-40C < T < +85C
0.4
1
1.2
mV
1mA < Ik < 15mA
-40C < T < +85C
2.5
8
10
Rka
Reverse Static Impedance
Ik = Ikmin to 1mA
-40C < T < +85C
0.4
1
1.2
Ik = 1 to 15mA
-40C < T < +85C
0.2
0.6
0.7
Kvh
Long Term Stability
Ik = 100
A, t = 1000hrs
120
ppm
En
Wide Band Noise
Ik = 100
A
10Hz < f < 10kHz
35
Vrms
Note : Limits are 100% production tested at 25C. Limits over temperature are guaranteed through correlation and by design.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Vk
Reverse Breakdown Voltage
Ik = 100
A
2.475
2.5
2.525
V
Reverse Breakdown Voltage Tolerange
Ik = 100
A
-40C < T < +85C
-25
-41
25
41
mV
Ikmin
Minimum Operating Current
T = 25C
40
50
A
-40C < T < +85C
60
Vref/
T Average Temperature Coefficient
Ik = 100
A
30
100
ppm/C
Vk/
Ik
Reverse Breakdown Voltage Change
with Operating Current Range
Ikmin < Ik < 1mA
-40C < T < +85C
0.4
1
1.2
mV
1mA < Ik < 15mA
-40C < T < +85C
2.5
8
10
Rka
Reverse Static Impedance
Ik = Ikmin to 1mA
-40C < T < +85C
0.4
1
1.2
Ik = 1mA to 15mA
-40C < T < +85C
0.2
0.6
0.7
Kvh
Long Term Stability
Ik = 100
A, t = 1000hrs
120
ppm
En
Wide Band Noise
Ik = 100
A
10Hz < f < 10kHz
35
Vrms
TS822
4/10
Reference voltage versus cathode current
-0.5
0
0.5
1
1.5
2
2.5
Cathode voltage (V)
-5
0
5
10
15
C
a
t
hode
c
u
r
r
e
n
t
(m
A
)
Test circuit
Vin
Ik=(Vin-Vref)/R
Vout=Vref
R
Static impedance (Rka) versus
temperature
-40
-20
0
20
40
60
80
Temperature (C)
0
0.05
0.1
0.15
0.2
S
t
a
t
ic im
p
edan
ce (
O
hm
s
)
Minimum operating current
0
20
40
Cathode current (A)
0
0.5
1
1.5
2
2.5
3
C
a
t
hod
e vol
t
ag
e (
V
)
T=+85C
T=-40C
T=+25C
Reference voltage versus Temperature
-40
-20
0
20
40
60
80
Temperature (C)
2.44
2.46
2.48
2.5
2.52
2.54
2.56
C
a
t
h
od
e v
o
l
t
ag
e (V
)
+2%
-2%
-1%
+1%
Noise voltage versus Frequency
0.1
1.0
10.0
100.0
1000.0
Frequency (KHz)
0
500
1000
1500
N
o
i
s
e v
o
l
t
age (n
V
/
V
H
z
)
C
L
=10F
C
L
=0
C
L
=100F
C
L
=100nF
C
L
=1F
TS822
5/10
Ik=100A
Ou
t
p
u
t
25k ohm
Pulse
Generator
In
t
p
u
t
Test circuit for pulse response at Ik=100A
Pulse response for Ik=100A
Detailed part
0
0.5
1
1.5
2
Time (s)
0V
5V
2.5V
0V
Input
Output
Ik=1mA
O
u
t
put
Pulse
Generator
I
n
t
put
Test circuit for pulse response at Ik=1mA
2.5k ohm
Pulse response for Ik=100A
0
5
0
2.5
0
5
10
15
20
Time (s)
Input
Output
Pulse response for Ik=100A
Detailed part
0
1
2
3
4
5
Time (s)
0V
5V
0V
2.5V
Input
Output
Pulse response for Ik=1mA
0V
5V
0V
2.5V
0
1
2
3
4
5
Time (s)
Input
Output
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