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ZRA125R1

Description
1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PSIP3
Categoryaccessories   
File Size113KB，5 Pages
ManufacturerETC
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ZRA125R1 Overview

1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PSIP3

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PRECISION 1.25 VOLT
MICROPOWER VOLTAGE REFERENCE
ZRA125
ISSUE 2 - FEBRUARY 1997
DEVICE DESCRIPTION
Typical T
C
30ppm/°C
Typical slope resistance 0.65Ω
±
3%,2% and 1% tolerance
Industrial temperature range
Operating current 50µA to 5mA
Transient response, stable in less than 10µs
Optional extended current range
Battery powered and portable equipment.
Metering and measurement systems.
Instrumentation.
Data acquisition systems.
Precision power supplies.
Test equipment.
The ZRA125 uses a bandgap circuit design to
achieve a precision micropower voltage
reference of 1.25 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.
•
•
•
•
•
•
•
APPLICATIONS
The ZRA125 design provides a stable voltage
without an external capacitor and is stable with
capacitive loads. The ZRA125 is recommended
for operation between 50µA and 5mA 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.
•
•
•
•
•
•
FEATURES
•
•
Small outline SOT23, SO8 and TO92 style
packages
No stabilising capacitor required
SCHEMATIC DIAGRAM
V
R
G
nd
1 - 24
ZRA125
TYPICAL CHARACTERISTICS
1.4
1.26
1.27
I
R
=150
µ
A to 5mA
ZRA125
ABSOLUTE MAXIMUM RATING
Reverse Current
Forward Current
Operating Temperature
Storage Temperature
1.2
1.25
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
1.0
1.24
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) T
amb
=25°C
0.8
1.23
SYMBOL PARAMETER
0.6
1.22
0.4
Forward Voltage (V)
Reference voltage (V)
1.21
0.1
1
10
100
1000
-40
-20
CONDITIONS
TYP MAX
0.2
LIMITS
TOL.
%
UNITS
MIN
V
Forward Current (mA)
V
R
Reverse Breakdown Voltage I
R
=150µA
Forward Characteristics
0
20
40
60
80
1.228
1.225
1.21
30
5
30
1.0
1.24 1.252
1.25 1.275
1.25 1.29
50
mA
µA
1
2
3
Temperature (°C)
I
MIN
Minimum Operating Current
Temperature Drift
1000
I
R
90
ppm/°C
Recommended Operating
Current
0.05
T
C
†
100
Average Reverse
Breakdown Voltage Temp.
Co.
0.65 2
0.5
I
R(min)
to
I
R(max)
Ω
Ω
T
A
=-40°C
T
A
=25°C
I
4
=150
µ
A
10
R
S
§
0.5
1
Slope Resistance
I
4
=1mA
Slope resistance (Ω)
Reverse Dynamic Impedance I
R
= 1mA
f = 100Hz
I
AC
= 0.1 I
R
40
µV(rms)
0
0.1
Slope resistance (Ω)
Z
R
T
A
=85°C
1
I
4
=5mA
0.1
0.01
1
10
0.1
1
10
100
E
N
Wideband Noise Voltage
I
R
= 150µA
f = 100Hz to
10kHZ
Reference Current (mA)
Frequency (kHz)
Slope Resistance v Current
Slope Resistance v Frequency
1.5
1.5
60
1.0
50
V
R
Change
x
1000000
T
C
=
V
R
x Temperature Change
°C
2
0
-4
°C
5
°C
40
0.5
58K
V - (V)
INPUT
1.0
†
V - (V)
R
R
O UTPUT
0
10
INPUT
0.5
1 K8
O UTPUT
0
10
30
Reverse Current (µA)
V
R
Change
(I
R
(min)
to I
R
(max))
R
S
=
I
R
(
max
) −
I
R
(
min)
T
)
T
T
- (V)
10
V
0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
1
2
3
4
V
)
=
NI
0
- (V)
NI
§
)
=
20
5
=8
0
0
2
4
6
8
Reverse Voltage (V)
Time (
µ
s)
Time (
µ
s)
Reverse Characteristics
µ
Transient Response (I
4
=150µA)
Transient Response (I
4
=5mA)
1 - 45
1 - 26
ZRA125
TYPICAL CHARACTERISTICS
1.4
1.26
1.27
I
R
=150
µ
A to 5mA
ZRA125
ABSOLUTE MAXIMUM RATING
Reverse Current
Forward Current
Operating Temperature
Storage Temperature
1.2
1.25
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
1.0
1.24
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) T
amb
=25°C
0.8
1.23
SYMBOL PARAMETER
0.6
1.22
0.4
Forward Voltage (V)
Reference voltage (V)
1.21
0.1
1
10
100
1000
-40
-20
CONDITIONS
TYP MAX
0.2
LIMITS
TOL.
%
UNITS
MIN
V
Forward Current (mA)
V
R
Reverse Breakdown Voltage I
R
=150µA
Forward Characteristics
0
20
40
60
80
1.228
1.225
1.21
30
5
30
1.0
1.24 1.252
1.25 1.275
1.25 1.29
50
mA
µA
1
2
3
Temperature (°C)
I
MIN
Minimum Operating Current
Temperature Drift
1000
I
R
90
ppm/°C
Recommended Operating
Current
0.05
T
C
†
100
Average Reverse
Breakdown Voltage Temp.
Co.
0.65 2
0.5
I
R(min)
to
I
R(max)
Ω
Ω
T
A
=-40°C
T
A
=25°C
I
4
=150
µ
A
10
R
S
§
0.5
1
Slope Resistance
I
4
=1mA
Slope resistance (Ω)
Reverse Dynamic Impedance I
R
= 1mA
f = 100Hz
I
AC
= 0.1 I
R
40
µV(rms)
0
0.1
Slope resistance (Ω)
Z
R
T
A
=85°C
1
I
4
=5mA
0.1
0.01
1
10
0.1
1
10
100
E
N
Wideband Noise Voltage
I
R
= 150µA
f = 100Hz to
10kHZ
Reference Current (mA)
Frequency (kHz)
Slope Resistance v Current
Slope Resistance v Frequency
1.5
1.5
60
1.0
50
V
R
Change
x
1000000
T
C
=
V
R
x Temperature Change
°C
2
0
-4
°C
5
°C
40
0.5
58K
V - (V)
INPUT
1.0
†
V - (V)
R
R
O UTPUT
0
10
INPUT
0.5
1 K8
O UTPUT
0
10
30
Reverse Current (µA)
V
R
Change
(I
R
(min)
to I
R
(max))
R
S
=
I
R
(
max
) −
I
R
(
min)
T
)
T
T
- (V)
10
V
0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
1
2
3
4
V
)
=
NI
0
- (V)
NI
§
)
=
20
5
=8
0
0
2
4
6
8
Reverse Voltage (V)
Time (
µ
s)
Time (
µ
s)
Reverse Characteristics
µ
Transient Response (I
4
=150µA)
Transient Response (I
4
=5mA)
1 - 45
1 - 26
ZRA125
ORDERING INFORMATION
Part No
ZRA125A03
ZRA125A02
ZRA125A01
ZRA125F03
ZRA125F02
ZRA125F01
ZRA125N803
ZRA125N802
ZRA125N801
1
SO8
2
SO8
3
SO8
ZRA12503
ZRA12502
ZRA12501
1
SOT23
12D
2
SOT23
12B
3
SOT23
12A
ZRA125Y03
ZRA125Y02
ZRA125Y01
1
E-Line
•
ZRA12501
ZRA125R01
1
3
2
1
2
E-Line
•
ZRA12502
ZRA125R02
2
3
E-Line
•
ZRA12503
ZRA125R03
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
ZRA125
CONNECTION DIAGRAMS
E-Line, 2 pin Package Suffix – Y
E-Line, 3 pin,Rev Package Suffix – R
ZRA125R3
ZRA125R2
ZRA125R1
ZRA12503
ZRA12502
ZRA12501
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
ZRA125
ORDERING INFORMATION
Part No
ZRA125A03
ZRA125A02
ZRA125A01
ZRA125F03
ZRA125F02
ZRA125F01
ZRA125N803
ZRA125N802
ZRA125N801
1
SO8
2
SO8
3
SO8
ZRA12503
ZRA12502
ZRA12501
1
SOT23
12D
2
SOT23
12B
3
SOT23
12A
ZRA125Y03
ZRA125Y02
ZRA125Y01
1
E-Line
•
ZRA12501
ZRA125R01
1
3
2
1
2
E-Line
•
ZRA12502
ZRA125R02
2
3
E-Line
•
ZRA12503
ZRA125R03
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
ZRA125
CONNECTION DIAGRAMS
E-Line, 2 pin Package Suffix – Y
E-Line, 3 pin,Rev Package Suffix – R
ZRA125R3
ZRA125R2
ZRA125R1
ZRA12503
ZRA12502
ZRA12501
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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