Zetex ZRC400A01, ZRC400A02, ZRC400A03, ZRC400F01, ZRC400F02 Datasheet
...
PRECISION 4.096 VOLT LOW KNEE CURRENT
VOLTAGE REFERENCE
ISSUE 3 - MARCH 1998
ZRC400
DEVICE DESCRIPTION
The ZRC400 uses a bandgap circuit design to
achieve a precision micropower voltage
reference of 4.096 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 ZRC400 design provides a stable voltage
without an external capacitor and is stable
with capacitive loads. The ZRC400 is
recommended for operation between 23µA
and 5mA 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.
SCHEMATIC DIAGRAM
FEATURES
Small outline SOT23 , SO8 and TO92
•
style packages
No stabilising capacitor required
•
Low knee current, 18µA typical
•
Typical TC 30ppm/°C
•
Typical slope resistance 0.4Ω
•
± 3%, 2% and 1% tolerance
•
Industrial temperature range
•
Operating current 23µA to 5mA
•
Transient response, stable in less than
•
10µs
Optional extended current range
•
APPLICATIONS
Battery powered and portable
•
equipment.
Instrumentation.
•
Test equipment.
•
Metering and measurement systems.
•
V
G
R
nd
4-257
ZRC400
ABSOLUTE MAXIMUM RATING
Reverse Current 25mA
Forward Current 25mA
Operating Temperature -40 to 85°C
Storage Temperature -55 to 125°C
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) T
Power Dissipation (T
SOT23 330mW
E-Line, 3 pin (TO92) 500mW
E-Line, 2 pin (TO92) 500mW
SO8 625mW
amb
=25°C
amb
=25°C)
SYMBOL PARAMETER
CONDITIONS LIMITS TOL.%UNITS
MIN TYP MAX
V
I
I
R
MIN
R
Reverse Breakdown Voltage
=150µA
I
R
Minimum Operating Current 18 23
Recommended Operating
4.055
4.096
4.014
4.096
3.973
4.096
0.023 5 mA
Current
T
† Average Reverse Breakdown
C
R
S
Z
R
Voltage Temp. Co. I
§ Slope Resistance 0.4 2
R(min)
I
R(max)
to
Reverse Dynamic Impedance IR =1mA
30 90 ppm/°C
0.3 0.8
f = 100Hz
I
=0.1 I
AC
R
E
N
Wideband Noise Voltage
=150µA
I
R
90
f=10Hz to
10kHz
(
V
−
V
†
T
Note: V
=
C
R(max)
R(max
V
- V
)
x (
R
R(min)
) x 1000000
R(min
)
T
−
T
(
max
)
)
(
min
)
is the maximum
deviation in reference voltage measured
over the full operating temperature
40
30
20
range.
§
V
Change
(
I
to
I
R
R
=
S
I
R (max
R
(
min
)
I
−
)
R (min
R (max
)
)
)
Reverse Current (uA)
10
0
Reverse Characteristics
4.137
1
4.178
2
4.219
3
25 °C
85 °C
Reverse Voltage (V)
V
µA
Ω
Ω
µV(rms)
-40 °C
501234
4-258
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