TS822
2.5V MICROPOWER SHUNT VOLTAGE REFERENCE
s
2.50V TYP. OUTPUT VOLTAGE
s
ULTRA LOW CURRENT CONSUMPTION:
s
s
s
s
40µA TYP.
HIGH PRECISION @ 25°C
±2%
(Standard version)
±1%
(A grade)
HIGH STABILITY WHEN USED WITH
CAPACITICE LOAD
INDUSTRIAL TEMPERATURE RANGE:
-40 to +85°C
100ppm/°C MAXIMUM TEMPERATURE
COEFFICIENT
Z
TO-92
(Plastic Package)
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 +85°C). 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
L
SOT23-3L
(Plastic Micropackage)
PIN CONNECTIONS
(top view)
s
s
s
s
s
Computers
Instrumentation
Battery chargers
Switch Mode Power Supply
Battery operated equipments
ORDER CODE
Precision
TO92
SOT23-3
SOT23
Marking
L223
L222
2%
TS822IZ
TS822IL
1%
TS822AIZ TS822AIL
Single temperature range: -40 to +85°C
Z =
TO92 Plastic package
LT =
Tiny Package (SOT23-5) - only available in Tape & Reel (LT)
March 2000
1/8
TS822
ABSOLUTE MAXIMUM RATINGS
Symbol
I
k
I
f
P
d
T
oper
T
std
ESD
T
lead
Parameter
Reverse Breakdown Current
Forward Current
Power Dissipation
1)
SOT23-3
TO-92
Value
20
10
360
625
-40 to +85
-65 to +150
2
200
260
Unit
mA
mA
mW
°C
°C
kV
V
°C
Operating Free Air Temperature Range
Storage Temperature
Human Body Model (HBM)
Machine Model (MM)
Lead Temperature (soldering, 10 seconds)
1. Pd has been calculated with Tamb = 25°C and Rthja = 200°C/W for the TO92 package
Rthja = 340°C/W for the STO23-3L package
OPERATING CONDITIONS
Symbol
I
kmin
I
kmax
Minimum Operating Current
Maximum Operating Current
Parameter
Value
50
15
Unit
µA
mA
2/8
TS822
ELECTRICAL CHARACTERISTICS
TS822 (2% Precision)
Tamb = 25°C (unless otherwise specified)
Symbol
Vk
Parameter
Reverse Breakdown Voltage
Test Condition
Min.
2.45
-50
-66
Typ.
2.5
Max.
2.55
50
66
50
60
100
1
1.2
8
10
1
1.2
0.6
0.7
Unit
V
mV
µA
ppm/°C
mV
Ik = 100µA
Ik = 100µA
Reverse Breakdown Voltage Tolerange
-40°C < T < +85°C
T = 25°C
-40°C < T < +85°C
Ik = 100µA
Ikmin < Ik < 1mA
-40°C < T < +85°C
1mA < Ik < 15mA
-40°C < T < +85°C
Ik = Ikmin to 1mA
-40°C < T < +85°C
Ik = 1 to 15mA
-40°C < T < +85°C
Ik = 100µA, t = 1000hrs
Ik = 100µA
10Hz < f < 10kHz
Ikmin
Minimum Operating Current
40
30
0.4
2.5
0.4
0.2
120
35
∆Vref/∆T
Average Temperature Coefficient
∆Vk/∆Ik
Reverse Breakdown Voltage Change
with Operating Current Range
Rka
Kvh
En
Reverse Static Impedance
Long Term Stability
Wide Band Noise
Ω
ppm
µVrms
Note :
Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
ELECTRICAL CHARACTERISTICS
TS822A (1% Precision)
Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Reverse Breakdown Voltage
Test Condition
Min.
2.475
-25
-41
Typ.
2.5
Max.
2.525
25
41
50
60
100
1
1.2
8
10
1
1.2
0.6
0.7
Unit
V
mV
µA
ppm/°C
mV
Ik = 100µA
Vk
Ik = 100µA
Reverse Breakdown Voltage Tolerange
-40°C < T < +85°C
T = 25°C
Ikmin
Minimum Operating Current
-40°C < T < +85°C
∆Vref/∆T
Average Temperature Coefficient
Ik = 100µA
Ikmin < Ik < 1mA
-40°C < T < +85°C
Reverse Breakdown Voltage Change
∆Vk/∆Ik
with Operating Current Range
1mA < Ik < 15mA
-40°C < T < +85°C
Ik = Ikmin to 1mA
-40°C < T < +85°C
Rka
Reverse Static Impedance
Ik = 1mA to 15mA
-40°C < T < +85°C
Kvh
Long Term Stability
Ik = 100µA, t = 1000hrs
Ik = 100µA
En
Wide Band Noise
10Hz < f < 10kHz
40
30
0.4
2.5
0.4
0.2
120
35
Ω
ppm
µVrms
Note :
Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
3/8
TS822
Reference voltage versus cathode current
15
Cathode current (mA)
Minimum operating current
3
2.5
Cathode voltage (V)
10
T=+25°C
2
1.5
1
0.5
T=+85°C
T=-40°C
5
0
-5
-0.5
0
0.5
1
1.5
2
2.5
Cathode voltage (V)
0
0
20
Cathode current (µA)
40
Reference voltage versus Temperature
Testcircuit
2.56
Cathode voltage (V)
+2%
+1%
R
Ik=(Vin-Vref)/R
Vout=Vref
2.54
2.52
2.5
2.48
2.46
2.44
-40
-20
0
Vin
-1%
-2%
20
40
60
80
Temperature (°C)
Static impedance (Rka) versus
temperature
0.2
Static impedance (Ohms)
Noise voltage (nV/VHz)
Noise voltage versus Frequency
1500
C
L
=100µF
C
L
=10µF
1000
C
L
=1µF
500
C
L
=100nF
C
L
=0
0
0.15
0.1
0.05
0
-40
-20
0
20
40
Temperature (°C)
60
80
0.1
1.0
10.0
100.0
Frequency (KHz)
1000.0
4/8
TS822
Pulse response for Ik=100µA
5
Test circuit for pulse response at Ik=100µA
25k ohm
Ik=100µA
Input
0
2.5
Output
0
0
5
10
Time (µs)
15
20
Pulse response for Ik=100µA
Detailed part
5V
Input
5V
Output
Intput
Pulse
Generator
Pulse response for Ik=100µA
Detailed part
Input
0V
Output
0V
0
0.5
1
Time (µs)
1.5
2
0
1
2
3
Time (µs)
4
2.5V
0V
Output
0V
5
2.5V
Pulse response for Ik=1mA
5V
Test circuit for pulse response at Ik=1mA
2.5k ohm
Ik=1mA
Input
Output
Intput
Pulse
Generator
0V
2.5V
0V
Output
0
1
2
3
4
5
Time (µs)
5/8
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