PRECISION 5.0 VOLT MICROPOWER
VOLTAGE REFERENCE
ZRB500
ISSUE 1 - OCTOBER 1995
DEVICE DESCRIPTION
FEATURES
•
Small outline SOT23,SO8 and TO92 style
packages
No stabilising capacitor required
Typical T
C
15ppm/ °C
Typical slope resistance 0.33Ω
±
3%, 2% and 1% tolerance
Industrial temperature range
Operating current 50µA 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.
The ZRB500 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 ZRB500 design provides a stable voltage
without an external capacitor and is stable with
capacitive loads.
The ZRB500 is
recommended for operation between 50µA
and 15mA and so is ideally suited to low power
and battery powered applications.
Excellent performance is maintained to a
suggested 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.
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SCHEMATIC DIAGRAM
V
R
G
nd
1 - 36
ZRB500
TYPICAL CHARACTERISTICS
1.6
5.02
I
R
=150
µ
A to 15mA
ZRB500
ABSOLUTE MAXIMUM RATING
Reverse Current
Forward Current
Operating Temperature
Storage Temperature
1.4
1.2
5.00
25mA
25mA
-40 to 85°C
-55 to 125°C
Power Dissipation (T
amb
=25°C)
SOT23
330mW
E-Line, 3 pin (TO92)
500mW
E-Line, 2 pin (TO92)
500mW
SO8
625mW
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) T
amb
=25°C
1.0
SYMBOL PARAMETER
0.6
Reference voltage (V)
4.98
4.96
0.1
1
10
100
1000
-40
-20
0
TOL.
%
0.4
MIN
V
Forward Current (mA)
TYP MAX
Forward Voltage (V)
0.8
CONDITIONS
LIMITS
UNITS
20
40
60
80
V
R
Forward Characteristics
Reverse Breakdown Voltage
I
R
=150µA
4.95
4.90
4.85
30
0.05
3.0
5.0
5.0
5.0
50
15
15
2.0
5.05
5.10
5.15
µA
mA
ppm/°C
Ω
Ω
1.0
T
A
=25°C
T
A
=85°C
0
1
2
3
Temperature (°C)
Temperature Drift
I
MIN
Minimum Operating Current
I
R
50
1000
Recommended Operating
Current
I
4
=150
µ
A
T
C
0.33 1.5
0.4
1
Average Reverse Breakdown
Voltage Temp. Co.
100
I
4
=5mA
10
T
A
=-40°C
R
S
§
Slope Resistance
I
R(min)
to
I
R(max)
Slope resistance (Ω)
I
R
= 1mA
f = 100Hz
I
AC
= 0.1 I
R
100
µV(rms)
0.1
Slope resistance (Ω)
Z
R
Reverse Dynamic Impedance
1
E
N
Wideband Noise Voltage
0.1
1
10
100
0.01
0.1
I
R
= 150µA
f = 10Hz to
10kHZ
Reference Current (mA)
Frequency (kHz)
1
10
100
Slope Resistance v Current
6.0
6.0
Slope Resistance v Frequency
60
T
C
=
T
)
=85°C
V
R
Change
x
1000000
50
4.0
V
R
x Temperature Change
5 mA
V
IN
4.0
40
V
IN
30
V - (V)
V
R
Change
(I
R
(min)
to I
R
(
max))
§
R
S
=
I
R
(
max
)
−
I
R
(
min)
T
)
=-40°C
0
2.0
4.0
20
0
10
V - (V)
R
2.0
150
µ
A
1K
5mA
33K
150
µ
A
V
R
R
2.0
1K
5mA
33K
150
µ
A
V
R
0
10
Reverse Current (µA)
- (V)
V
0
6.0
0
Time (
µ
s)
500
1000
V
NI
0
- (V)
NI
10
0
0
1
Time (
µ
s)
2
3
4
Reverse Voltage (V)
Transient Response
(Single Pulse)
Transient Response
(Repetitive Pulse)
Reverse Characteristics
1 - 38
1 - 37
ZRB500
TYPICAL CHARACTERISTICS
1.6
5.02
I
R
=150
µ
A to 15mA
ZRB500
ABSOLUTE MAXIMUM RATING
Reverse Current
Forward Current
Operating Temperature
Storage Temperature
1.4
1.2
5.00
25mA
25mA
-40 to 85°C
-55 to 125°C
Power Dissipation (T
amb
=25°C)
SOT23
330mW
E-Line, 3 pin (TO92)
500mW
E-Line, 2 pin (TO92)
500mW
SO8
625mW
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) T
amb
=25°C
1.0
SYMBOL PARAMETER
0.6
Reference voltage (V)
4.98
4.96
0.1
1
10
100
1000
-40
-20
0
TOL.
%
0.4
MIN
V
Forward Current (mA)
TYP MAX
Forward Voltage (V)
0.8
CONDITIONS
LIMITS
UNITS
20
40
60
80
V
R
Forward Characteristics
Reverse Breakdown Voltage
I
R
=150µA
4.95
4.90
4.85
30
0.05
3.0
5.0
5.0
5.0
50
15
15
2.0
5.05
5.10
5.15
µA
mA
ppm/°C
Ω
Ω
1.0
T
A
=25°C
T
A
=85°C
0
1
2
3
Temperature (°C)
Temperature Drift
I
MIN
Minimum Operating Current
I
R
50
1000
Recommended Operating
Current
I
4
=150
µ
A
T
C
0.33 1.5
0.4
1
Average Reverse Breakdown
Voltage Temp. Co.
100
I
4
=5mA
10
T
A
=-40°C
R
S
§
Slope Resistance
I
R(min)
to
I
R(max)
Slope resistance (Ω)
I
R
= 1mA
f = 100Hz
I
AC
= 0.1 I
R
100
µV(rms)
0.1
Slope resistance (Ω)
Z
R
Reverse Dynamic Impedance
1
E
N
Wideband Noise Voltage
0.1
1
10
100
0.01
0.1
I
R
= 150µA
f = 10Hz to
10kHZ
Reference Current (mA)
Frequency (kHz)
1
10
100
Slope Resistance v Current
6.0
6.0
Slope Resistance v Frequency
60
T
C
=
T
)
=85°C
V
R
Change
x
1000000
50
4.0
V
R
x Temperature Change
5 mA
V
IN
4.0
40
V
IN
30
V - (V)
V
R
Change
(I
R
(min)
to I
R
(
max))
§
R
S
=
I
R
(
max
)
−
I
R
(
min)
T
)
=-40°C
0
2.0
4.0
20
0
10
V - (V)
R
2.0
150
µ
A
1K
5mA
33K
150
µ
A
V
R
R
2.0
1K
5mA
33K
150
µ
A
V
R
0
10
Reverse Current (µA)
- (V)
V
0
6.0
0
Time (
µ
s)
500
1000
V
NI
0
- (V)
NI
10
0
0
1
Time (
µ
s)
2
3
4
Reverse Voltage (V)
Transient Response
(Single Pulse)
Transient Response
(Repetitive Pulse)
Reverse Characteristics
1 - 38
1 - 37
ZRB500
ORDERING INFORMATION
Part No
ZRB500A03
ZRB500A02
ZRB500A01
ZRB500F03
ZRB500F02
ZRB500F01
ZRB500N803
ZRB500N802
ZRB500N801
1
SO8
2
SO8
ZRB50002
ZRB50001
3
SO8
ZRB50003
1
SOT23
50I
2
SOT23
50H
3
SOT23
50G
ZRB500Y03
ZRB500Y02
ZRB500Y01
1
E-Line
•
ZRB50001
ZRB500R01
1
3
2
1
2
E-Line
•
ZRB50002
ZRB500R02
2
3
E-Line
•
ZRB50003
ZRB500R03
3
Tol% Package
Partmark
Part No
Tol% Package
E-Line *
E-Line *
E-Line *
E-Line
E-Line
E-Line
* E-Line 3 pin Reversed
E-Line 2 pin
•
E-Line 3 pin
Partmark
ZRB500R3
ZRB500R2
ZRB500R1
ZRB50003
ZRB50002
ZRB50001
ZRB500
CONNECTION DIAGRAMS
E-Line, 2 pin Package Suffix Y
E-Line, 3 pin,Rev Package Suffix R
Bottom View
Bottom View
Pin 3 floating or connected to pin 1
E-Line, 3 pin Package Suffix A
SO8 Package Suffix N8
Bottom View
Pin 1 floating or connected to pin 3
Top View
SOT23 Package Suffix F
Top View
Pin 1 floating or connected to pin 2
ZRB500
ORDERING INFORMATION
Part No
ZRB500A03
ZRB500A02
ZRB500A01
ZRB500F03
ZRB500F02
ZRB500F01
ZRB500N803
ZRB500N802
ZRB500N801
1
SO8
2
SO8
ZRB50002
ZRB50001
3
SO8
ZRB50003
1
SOT23
50I
2
SOT23
50H
3
SOT23
50G
ZRB500Y03
ZRB500Y02
ZRB500Y01
1
E-Line
•
ZRB50001
ZRB500R01
1
3
2
1
2
E-Line
•
ZRB50002
ZRB500R02
2
3
E-Line
•
ZRB50003
ZRB500R03
3
Tol% Package
Partmark
Part No
Tol% Package
E-Line *
E-Line *
E-Line *
E-Line
E-Line
E-Line
* E-Line 3 pin Reversed
E-Line 2 pin
•
E-Line 3 pin
Partmark
ZRB500R3
ZRB500R2
ZRB500R1
ZRB50003
ZRB50002
ZRB50001
ZRB500
CONNECTION DIAGRAMS
E-Line, 2 pin Package Suffix Y
E-Line, 3 pin,Rev Package Suffix R
Bottom View
Bottom View
Pin 3 floating or connected to pin 1
E-Line, 3 pin Package Suffix A
SO8 Package Suffix N8
Bottom View
Pin 1 floating or connected to pin 3
Top View
SOT23 Package Suffix F
Top View
Pin 1 floating or connected to pin 2
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