ETC ZRA250N01

PRECISION 2.5 VOLT MICROPOWER
VOLTAGE REFERENCE
ZRA250
ISSUE 2 - NOVEMBER 1996
DEVICE DESCRIPTION
•
•
•
•
•
•
•
•
The ZRA250 uses a bandgap circuit design to
achieve a precision micropower voltage
reference of 2.5 volts. The device is available in
small outline surface mount packages, ideal for
applications where space saving is important.
The ZRA250 design provides a stable voltage
without an external capacitor and is stable with
capacitive loads. The ZRA250 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.
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•
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Small outline SOT23, SO8 and TO92 style
packages.
SCHEMATIC DIAGRAM
VR
G nd
1-80 2003
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Typical TC 30ppm/°C
Typical slope resistance 0.4Ω
± 3%, 2%,1% and 0.5% tolerance
Industrial temperature range
Operating current 50µA to 5mA
Transient response, stable in less than 10µs
Optional extended current range
APPLICATIONS
FEATURES
•
No stabilising capacitor required
1-77
Battery powered and portable equipment.
Metering and measurement systems.
Instrumentation.
Test equipment.
Data acquisition systems.
Precision power supplies.
ZRA250
ZRA250
Power Dissipation (Tamb=25°C)
SOT23
330mW
E-Line, 3 pin (TO92)
500mW
E-Line, 2 pin (TO92)
500mW
SO8
625mW
TYPICAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) Tamb=25°C
CONDITIONS
LIMITS
MIN
VR
Reverse Breakdown Voltage
50
µA
5
mA
30
90
ppm/°C
0.4
2
Ω
IR = 1mA
f = 100Hz
IAC= 0.1 IR
0.3
0.8
Ω
IR = 150µA
f = 10Hz to
10KHZ
43
IR
Recommended Operating
Current
TC †
RS §
Average Reverse Breakdown
Voltage Temp. Co.
IR(min) to
IR(max)
Slope Resistance
ZR
Reverse Dynamic Impedance
0.05
0.5
1
2
3
2.52
1.0
0.8
0.6
0.4
0.2
25
Minimum Operating Current
Wideband Noise Voltage
MAX
2.5125
2.525
2.55
2.575
IMIN
EN
UNITS
2.5
2.5
2.5
2.5
IR=150µA
2.4875
2.475
2.45
2.425
TYP
TOL.
%
2.53
1.2
V
IR =150µA to 5mA
2.51
2.50
2.49
2.48
2.47
0.1
10
1
100
-40
1000
-20
0
Forward Current (mA)
20
40
60
80
Temperature (°C)
Forward Characteristics
Temperature Drift
1000
IR=150µA
Slope resistance (Ω)
SYMBOL PARAMETER
1.4
Reference voltage (V)
25mA
25mA
-40 to 85°C
-55 to 125°C
Slope resistance (Ω)
Reverse Current
Forward Current
Operating Temperature
Storage Temperature
Forward Voltage (V)
ABSOLUTE MAXIMUM RATING
1.0
0.5
TA=-40°C
TA=25°C
100
IR=1mA
10
IR=5mA
1
TA=85°C
0.1
0
0.1
µV(rms)
1
10
0.01
0.1
Slope Resistance v Current
1
Frequency (kHz)
Reference Current (mA)
10
100
Slope Resistance v Frequency
60
V - (V)
V - (V)
3.0
INPUT
2.0
50K
OUTPUT
R
1.0
1K5
1.0
OUTPUT
30
TA
TA
10
0.2
5°C
=8
0.6
1.0
1.4
5°C
=2 0°C
=-4
A
T
1.8
2.2
Reverse Voltage (V)
IN
2.6
0
0
10
10
- (V)
20
0
NI
0
0
1
2
Time (µs)
3
4
0
0
µA)
Transient Response (IR=150µ
0.1
0.2
Time (µs)
0.3
Transient Response (IR=5mA)
Reverse Characteristics
1-78
INPUT
2.0
R
V
VR Change (IR (min) to IR (max))
§ RS =
IR (max) − IR (min)
40
- (V)
VR x Temperature Change
50
V
† TC =
Reverse Current (µA)
3.0
VR Change x 1000000
1-79
0.4
ZRA250
ZRA250
Power Dissipation (Tamb=25°C)
SOT23
330mW
E-Line, 3 pin (TO92)
500mW
E-Line, 2 pin (TO92)
500mW
SO8
625mW
TYPICAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) Tamb=25°C
CONDITIONS
LIMITS
MIN
VR
Reverse Breakdown Voltage
50
µA
5
mA
30
90
ppm/°C
0.4
2
Ω
IR = 1mA
f = 100Hz
IAC= 0.1 IR
0.3
0.8
Ω
IR = 150µA
f = 10Hz to
10KHZ
43
IR
Recommended Operating
Current
TC †
RS §
Average Reverse Breakdown
Voltage Temp. Co.
IR(min) to
IR(max)
Slope Resistance
ZR
Reverse Dynamic Impedance
0.05
0.5
1
2
3
2.52
1.0
0.8
0.6
0.4
0.2
25
Minimum Operating Current
Wideband Noise Voltage
MAX
2.5125
2.525
2.55
2.575
IMIN
EN
UNITS
2.5
2.5
2.5
2.5
IR=150µA
2.4875
2.475
2.45
2.425
TYP
TOL.
%
2.53
1.2
V
IR =150µA to 5mA
2.51
2.50
2.49
2.48
2.47
0.1
10
1
100
-40
1000
-20
0
Forward Current (mA)
20
40
60
80
Temperature (°C)
Forward Characteristics
Temperature Drift
1000
IR=150µA
Slope resistance (Ω)
SYMBOL PARAMETER
1.4
Reference voltage (V)
25mA
25mA
-40 to 85°C
-55 to 125°C
Slope resistance (Ω)
Reverse Current
Forward Current
Operating Temperature
Storage Temperature
Forward Voltage (V)
ABSOLUTE MAXIMUM RATING
1.0
0.5
TA=-40°C
TA=25°C
100
IR=1mA
10
IR=5mA
1
TA=85°C
0.1
0
0.1
µV(rms)
1
10
0.01
0.1
Slope Resistance v Current
1
Frequency (kHz)
Reference Current (mA)
10
100
Slope Resistance v Frequency
60
V - (V)
V - (V)
3.0
INPUT
2.0
50K
OUTPUT
R
1.0
1K5
1.0
OUTPUT
30
TA
TA
10
0.2
5°C
=8
0.6
1.0
1.4
5°C
=2 0°C
=-4
A
T
1.8
2.2
Reverse Voltage (V)
IN
2.6
0
0
10
10
- (V)
20
0
NI
0
0
1
2
Time (µs)
3
4
0
0
µA)
Transient Response (IR=150µ
0.1
0.2
Time (µs)
0.3
Transient Response (IR=5mA)
Reverse Characteristics
1-78 2003
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INPUT
2.0
R
V
VR Change (IR (min) to IR (max))
§ RS =
IR (max) − IR (min)
40
- (V)
VR x Temperature Change
50
V
† TC =
Reverse Current (µA)
3.0
VR Change x 1000000
1-79
0.4
ZRA250
ZRA250
CONNECTION DIAGRAMS
E-Line, 2 pin Package Suffix – Y
Bottom View
E-Line, 3 pin Package Suffix – A
Bottom View –
Pin 1 floating or connected to pin 3
SOT23 Package Suffix – F
Top View –
Pin 1 floating or connected to pin 2
ORDERING INFORMATION
E-Line, 3 pin,Rev Package Suffix – R
Bottom View –
Pin 3 floating or connected to pin 1
SO8 Package Suffix – N8
Top View
Part No
Tol% Package
Partmark
Part No
Tol% Package
Partmark
ZRA250A03
3
E-Line •
ZRA25003
ZRA250R03
3
E-Line *
ZRA250R3
ZRA250A02
2
E-Line •
ZRA25002
ZRA250R02
2
E-Line *
ZRA250R2
ZRA250A01
1
E-Line •
ZRA25001
ZRA250R01
1
E-Line *
ZRA250R1
ZRA250A005
0.5
E-Line •
ZRA250005
ZRA250R005
0.5
E-Line *
ZRA250R05
ZRA250F03
3
SOT23
25A
ZRA250Y03
3
E-Line †
ZRA25003
ZRA250F02
2
SOT23
25B
ZRA250Y02
2
E-Line †
ZRA25002
ZRA250F01
1
SOT23
25C
ZRA250Y01
1
E-Line †
ZRA25001
ZRA250F005 0.5
SOT23
25Y
ZRA250Y005
0.5
E-Line †
ZRA250005
ZRA250N803
3
SO8
ZRA25003
ZRA250N802
2
SO8
ZRA25002
ZRA250N801
1
SO8
ZRA25001
SO8
ZRA250005
ZRA250N8005 0.5
* E-Line 3 pin Reversed
† E-Line 2 pin
• E-Line 3 pin
ZRA250
ZRA250
CONNECTION DIAGRAMS
E-Line, 2 pin Package Suffix – Y
Bottom View
E-Line, 3 pin Package Suffix – A
Bottom View –
Pin 1 floating or connected to pin 3
ORDERING INFORMATION
E-Line, 3 pin,Rev Package Suffix – R
Bottom View –
Pin 3 floating or connected to pin 1
SO8 Package Suffix – N8
Top View
SOT23 Package Suffix – F
Top View –
Pin 1 floating or connected to pin 2
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Part No
Tol% Package
Partmark
Part No
Tol% Package
Partmark
ZRA250A03
3
E-Line •
ZRA25003
ZRA250R03
3
E-Line *
ZRA250R3
ZRA250A02
2
E-Line •
ZRA25002
ZRA250R02
2
E-Line *
ZRA250R2
ZRA250A01
1
E-Line •
ZRA25001
ZRA250R01
1
E-Line *
ZRA250R1
ZRA250A005
0.5
E-Line •
ZRA250005
ZRA250R005
0.5
E-Line *
ZRA250R05
ZRA250F03
3
SOT23
25A
ZRA250Y03
3
E-Line †
ZRA25003
ZRA250F02
2
SOT23
25B
ZRA250Y02
2
E-Line †
ZRA25002
ZRA250F01
1
SOT23
25C
ZRA250Y01
1
E-Line †
ZRA25001
ZRA250F005 0.5
SOT23
25Y
ZRA250Y005
0.5
E-Line †
ZRA250005
ZRA250N803
3
SO8
ZRA25003
ZRA250N802
2
SO8
ZRA25002
ZRA250N801
1
SO8
ZRA25001
SO8
ZRA250005
ZRA250N8005 0.5
* E-Line 3 pin Reversed
† E-Line 2 pin
• E-Line 3 pin