V
R
G
nd
DEVICE DESCRIPTION
The ZR4040-4.1 uses a bandgap circuit
design to achieve a precision micropower
voltage reference of 4.1 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 ZR4040-4.1 design provides a stable
voltage without an external capacitor and
is stable with capacitive loads. The
ZR4040-4.1 is recommended for operation
between 60
A 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
effe cts a nd currents up to 200mA.
Superior switching capability allows the
d e v i c e t o r e a c h s t a b l e o p e ra ti n g
conditions in only a few microseconds.
FEATURES
Small outline SO8 and SOT23
packages
TO92 style package
No stabilising capacitor required
Typical T
C
20ppm/C
Typical slope resistance 0.55
2% and 1% tolerance
Industrial temperature range
Operating current 60
A to 15mA
APPLICATIONS
Battery powered and portable
equipment.
Metering and measurement systems.
Instrumentation.
Test equipment.
Data acquisition systems.
Precision power supplies.
Crystal oscillators.
SCHEMETIC DIAGRAM
PRECISION 4.1 VOLT MICROPOWER
VOLTAGE REFERENCE
ISSUE 3 - FEBRUARY 1998
ZR4040-4.1
4-177
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) T
amb
= 25C
SYMBOL PARAMETER
CONDITION
LIMITS
TOL UNITS
MIN
TYP
MAX
V
R
Reverse Breakdown
Voltage
I
R
=150
A
4.05
4.01
4.096
4.096
4.14
4.18
1
2
V
I
MIN
Minimum Operating
Current
25
60
A
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
0.55
2
Z
R
Reverse Dynamic
Impedance
I
R
= 1mA
f = 100Hz
I
AC
= 0.1 I
R
0.5
1.2
E
N
Wideband Noise Voltage
I
R
= 1mA
f = 10Hz to
10kHz
90
V(rms)
ABSOLUTE MAXIMUM RATING
Reverse Current
25mA
Forward Current
25mA
Operating Temperature
-40 to 85C
Storage Temperature
-55 to 125C
Power Dissipation (T
amb
=25C)
SOT23
330mW
SO8
625mW
E-Line, 3 pin (TO92)
500mW
ZR4040-4.1
0
Reverse Characteristics
Reverse Voltage (V)
R
ev
e
rse
C
urre
n
t (
A
)
0
10
20
30
50
4.0
2.0
40
T
A
=25C
T
A
=-40C
T
A
=85C
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
)
4-178
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
Part Number
Tol% Package Partmark
ZR40402F41
2
SOT23
40E
ZR40401F41
1
SOT23
40F
ZR40402N841
2
SO8
ZR4040241
ZR40401N841
1
SO8
ZR4040141
ZR40402R41
2
E-Line * ZR4040241
ZR40401R41
1
E-Line * ZR4040141
* E-Line, 3 pin Reversed
CONNECTION DIAGRAMS
ZR4040-4.1
4-180
ORDERING INFORMATION
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