Page 1
PRECISION 5.0 VOLT MICROPOWER
VOLTAGE REFERENCE
ISSUE 2 - MARCH 1998
ZR4040-5.0
DEVICE DESCRIPTION
The ZR4040-5.0 uses a bandgap circuit
design to achieve a precision micropower
voltage reference of 5.0 volts. The device
is available in small outline surface mount
packages, ideal for applications where
space saving is important, as well as
packages for through hole requirements.
The ZR4040-5.0 design provides a stable
voltage without an external capacitor and
is stable with capacitive loads. The
ZR4040-5.0 is recommended for operation
between 60µA and 15mA and so is ideally
suited to low power and battery powered
applications.
Excellent performance is maintained to an
absolute maximum of 25mA, however the
rugged design and 20 volt processing
allows the reference to withstand transient
effects and currents up to 200mA.
Superior switching capability allows the
device to reach stable operating
conditions in only a few microseconds.
FEATURES
•
Small outline SO8 and SOT23
packages
•
TO92 style package
•
No stabilising capacitor required
•
Typical TC 20ppm/°C
•
Typical slope resistance 0.33Ω
•
2% and 1% tolerance
•
Industrial temperature range
•
Operating current 60µA to 15mA
•
Transient response,stable in less than
10µs
APPLICATIONS
•
Battery powered and portable
equipment.
•
Metering and measurement systems.
•
Instrumentation.
•
Test equipment.
•
Data acquisition systems.
•
Precision power supplies.
V
R
G
nd
SCHEMETIC DIAGRAM
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ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) T
amb
=25°C
SYMBOL PARAMETER
CONDITIONS LIMITS TOL.
%
UNITS
MIN TYP MAX
V
R
Reverse Breakdown Voltage
I
R
=150µA
4.95
4.90
5.0
5.0
5.05
5.1012
V
I
MIN
Minimum Operating Current 30 60
µA
I
R
Recommended Operating
Current
0.06 15 mA
T
C
† Average Reverse
Breakdown Voltage Temp.
Co.
I
R(min)
to
I
R(max)
20 100 ppm/°C
R
S
§ Slope Resistance 0.33 1.5
Ω
Z
R
Reverse Dynamic
Impedance
IR =1mA
f = 100Hz
I
AC
=0.1 I
R
0.4 1.0
Ω
E
N
Wideband Noise Voltage IR=1mA
f = 10Hz to
10kHz
105
µV
(rms)
ZR4040-5.0
ABSOLUTE MAXIMUM RATING
Reverse Current 25mA
Forward Current 25mA
Operating Temperature -40 to 85°C
Storage Temperature -55 to 125°C
Power Dissipation (T
amb
=25°C)
SOT23 330mW
SO8 625mW
E-Line, 3 pin (TO92) 500mW
Reverse Character istics
Reverse Voltage (V)
R
everse Cur
rent
(
µ
A
)
0
60
6.02.0 4.0
0
10
20
30
40
50
TA=-40°C
TA=85°C
†
T
C
=
(
V
R(max
)
−
V
R(min
)
) x 1000000
V
R
x (
T
(
max
)
−
T
(
min
)
)
Note: V
R(max)
- V
R(min)
is the maximum
deviation in reference voltage measured
over the full operating temperature
range.
§
R
S
=
V
R
Change
(
I
R
(
min) to I
R
(
max
))
I
R
(
max
) −
I
R
(
min
)
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Page 3
ZR4040-5.0
TYPICAL CH ARAC T ERI ST ICS
Fo
r
wa
r
d
V
o
l
tag
e (
V
)
Temperature (°C)
Reference Current (mA)
Frequency (kHz)
Temperature Drift
Slope Resistance v Current
Re
f
eren
ce
v
o
l
tag
e (V)
S
l
op
e r
e
si
s
t
a
nce
(
Ω
)
Time (µs)
0500
-40
1000.1
Slope Resistance v Frequency
-20 0 20 40 60 80
Forward Characteristics
Forward Current (mA)
0.1 1 10 100 1000
IR=150µA to 15mA
1
0.1
10
100
1000
10 10010.10.01
1000 0 1 2 3 4
Time (µs)
S
l
o
p
e r
e
si
s
t
a
nce
(
Ω
)
IR=150µA
IR=5mA
0.4
0.6
0.8
1.0
1.2
1.4
1.6
TA=25°C
TA=-40°C
TA=85°C
0
10
0
4.0
6.0
4.96
5.02
5.00
4.98
0
2.0
3.0
1.0
110
2.0
0
10
0
4.0
6.0
2.0
Transient Response
(Single Pulse)
Transient Response
(Repetitive Pulse)
V
IN
V
R
33K
150µA
5 mA
150 µA
1K
5mA
33K
150µA
1K
5mA
V
IN
-
(V)
V
R
-
(V)
V
IN
-
(V)
V
R
-
(V)
V
IN
V
R
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SO8 Package Suffix – N8
Top View
SOT23 Package Suffix – F
Top View –
Pin 1 floating or connected to pin 2
E-Line, 3 pin, Rev Package Suffix – R
Bottom View –
Pin 3 floating or connected to pin 1
ORDERING INFORMATION
Part Number Tol% Package Partmark
ZR40402F50 2 SOT23 50L
ZR40401F50 1 SOT23 50M
ZR40402N850 2 SO8 ZR4040250
ZR40401N850 1 SO8 ZR4040150
ZR40402R50 2 E-Line * ZR4040250
ZR40401R50 1 E-Line * ZR4040150
* E-Line, 3 pin Reversed
CONNECTION DIAGRAMS
ZR4040-5.0
4-184
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