SPX1004 [SIPEX]
1.2V / 2.5V Micropower Voltage Reference; 1.2V / 2.5V微功耗电压参考
| 型号： | SPX1004 |
| 厂家： | 
SIPEX CORPORATION |
| 描述： | 1.2V / 2.5V Micropower Voltage Reference |
| 文件： | 总5页 (文件大小：177K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
SPX1004
1.2V / 2.5V Micropower Voltage Reference
FEATURES
1
2
3
4
CATHODE
N/C
8
7
6
5
N/C
N/C
■ Initial Voltage Tolerance:
SPX1004-1.2 = ±4mV
SPX1004
SPX1004-2.5 = ±20mV
■ Low Dynamic Impedance
0.6 Ω Max.
■ Low Operating Current:
SPX1004-1.2 = ±10µA
SPX1004-2.5 = ±20µA
■ Wide Operating Current Range
10µA to 20mA
CATHODE
ANODE
N/C
8 Pin nSOIC
ANODE
Now Available in Lead Free Packaging
APPLICATIONS
■ A/D and D/A Reference
■ Reference for 5V Systems
■ Digital Voltmeter
■ Direct Replacement for LT1004,
LM1004 and AS1004
■ Power Supply Monitor
DESCRIPTION
The SPX1004 is a 2-terminal bandgap precision voltage reference that provides a stable
fixed output voltage of 1.2V and 2.5V with a tolerance of ±4mV for SPX1004-1.2 and ±20mV
for SPX1004-2.5. Design, process and precision on chip trimming yield a very low tempera-
ture coefficient of 25 ppm/°C.
The SPX1004 can be used as a pin-to-pin replacement for the LT1004, LM1004 or AS1004.
The SPX1004 is available in SOT-89, SOIC-8 and TO-92 packages over the operating
temperature range of 0°C to 70°C.
BLOCK DIAGRAMS
Cathode (K)
Cathode (K)
500k
+
-
+
-
500k
1.250V
1.235V
Anode (A)
Anode (A)
Figure 1a. SPX1004-1.2 Block Diagram
Figure 1b. SPX1004-2.5 Block Diagram
Date: 5/25/04
SPX1004 1.2V/2.5V Micropower Voltage Reference
© Copyright 2004 Sipex Corporation
1
ABSOLUTE MAXIMUM RATINGS
Continuous Power Dissipation (PD)
TO-92.........................................................775mW
Stresses greater than those listed under ABSOLUTE MAXIMUM
RATINGS may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at these or
any other conditions above those indicated in the operational sections
of this specification is not implied. Exposure to absolute maximum
SOIC-8.......................................................750mW
SOT-89.....................................................1000mW
rating conditions for extended periods may affect reliability.
TYPICAL THERMAL RESISTANCES
Forward Current (IAK).....................................................10mA
Reverse Current (IKA).....................................................30mA
Lead Temperature (soldering, 10 seconds).................300°C
Storage Temperature Range.......................-65°C to +150°C
Junction Temperature..................................................150°C
PACKAGE
0JA
0JA
TYPICAL
DERATING
TO-92
160°C/W
175°C/W
110°C/W
80°C/W
45°C/W
8°C/W
6.3 mW/°C
5.7mW/°C
9.1mW/°C
SOIC-8
SOT-89
ELECTRICAL CHARACTERISTICS
Electrical characteristics are guaranteed over full junction tepmerature range (0°C to 70°C). Ambient tepmerature must be
derated based on power dissipation and package thermal characteristics.
SPX1004-1.2V
MIN TYP MAX
1.231 1.235 1.239
1.225 1.235 1.245
20
SPX1004-2.5V
PARAMETER
CONDITIONS
IZ=100µA, TJ=25°C
0°C≤TA≤70°C
Imin≤IZ≤20mA
MIN TYP MAX UNITS
Reverse breakdown
2.480 2.500 2.520
2.470 2.500 2.530
60
V
Ave Temp. Coeff.
ppm/
°C
Min Operating Current
Reverse Breakdown
Votlage Change
with Current
4
10
1
12
0.5
0.5
6.5
6.5
0.8
20
1
µA
Imin≤IZ≤1mA
0.5
0.5
6.5
6.5
0.2
1
mV
over temperature
1mA≤IZ≤20mA
1.5
10
20
0.6
1.5
1.5
10
20
0.9
1.5
over temperature
IZ=100µA, f=25Hz
over temperature
IZ=100µA, 10Hz≤f≤10kHz
IZ=100µA, TA=25°C±0.1°C
Reverse Dynamic
Impedance
Ω
Wide Band Noise
Long Term Stability
60
20
120
60
µV
ppm/
kHr
°C
Operating Temp Range
0
70
0
70
mV
ppm
%
0
0
0
˘ VKA (mV)
˘ TA
V
K
TC in mV/¡C
=
=
˘ VKA
˘ VKA at 25¡C
˘ TA
x
100
-10
(
)
%
TC in
/¡C
5000
0.5
˘ VKA
˘V at 25¡C
KA
6
x
10
(
)
TC in ppm/¡C
=
˘ TA
0
15
30
45
60
75
90
105
Junction Temperature (¡C)
0.07 mV/¡C
0.003 %/¡C
27 ppm/¡C
Figure 2. VREF vs Temperature for 2.5V Version
Date: 5/25/04
SPX1004 1.2V/2.5V Micropower Voltage Reference
© Copyright 2004 Sipex Corporation
2
TYPICAL PERFORMANCE CHARACTERISTICS
100
10
100
T
= 0˚C to 70˚C
T
= 0˚C to 70˚C
A
A
10
1
1
0.1
0.1
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
V
- Reverse Voltage (V)
V
- Reverse Voltage (V)
R
R
Figure 3. SPX1004-1.2V Reverse Operating Characteristic
Figure 4. SPX1004-2.5 Reverse Operating Characteristic
10k
10k
I
T
= 100µA
= 25°C
KA
I
T
= 100µA
= 25°C
KA
A
A
1k
1k
100
100
10
1
10
1
0.1
0.1
0.01
0.1
1
10
100
1k
0.01
0.1
1
10
100
1k
f = Frequency (kHz)
f = Frequency (kHz)
Figure 5. SPX1004-1.2V Reverse Dynamic Impedance
Figure 6. SPX1004-2.5V Reverse Dynamic Impedance
1.2
100
T
= 25°C
A
T
= 25°C
A
f = 25Hz
10
0.8
0.4
0.0
1
0.1
0.01
0.1
1
10
100
0.01
0.1
1
10
100
I
= Reverse Current (mA)
KA
I
= Forward Current (mA)
F
Figure 7. Forward Characteristics for SPX1004-1.2
and SPX1004-2.5
Figure 8. Low Frequency Reverse Dynamic Impedance
for SPX1004-1.2
Date: 5/25/04
SPX1004 1.2V/2.5V Micropower Voltage Reference
© Copyright 2004 Sipex Corporation
3
APPLICATION CIRCUITS
V
IN
V
IN
V
IN
100k
100kΩ
3kΩ
22Ω
OUT
OUT
SPX1004-1.2V
OUT
SPX1004-2.5V
SPX1004-2.5V
50µF
Figure 9a. 1.2V Reference, Figure 9b. 2.5V Reference
Figure 10. Low Noise Reference
V
IN
V
IN
> 8V
LM317
LM338
V
V
OUT
IN
OUT
V
IN
V
5V OUT
OUT
Adj
0.1µF
Adj
200Ω
976Ω, 1%
+
10µF
SPX1004-2.5V
+
5k
SPX1004-2.5V
22µF
324Ω, 1%
-
V
– 1V
R ≤
0.015mA
Figure 11. Variable Output Regulator
Figure 12. High Stability 5V Regulator
VIN = 12V to 20V
LO = Battery Low
86.7k
500k
500k
1M
7
3
2
+
6
+
–
LM4250
8
–
12V
3.5M
4
150pF
22M
150pF
SPX1004-1.2
SPX1004-1.2
500k
Figure 13. Low Battery Detector
Figure 14. Micropower 10V Reference
Date: 5/25/04
SPX1004 1.2V/2.5V Micropower Voltage Reference
© Copyright 2004 Sipex Corporation
4
PACKAGE: PINOUTS
SOIC (S1)
SOIC (S2) Alternate Pin Out
TO-92 (N)
SOT-89 (M1)
1
2
3
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
N/C
N/C
CATHODE
N/C
N/C
N/C
CATHODE
N/C
1
2
3
N/C
CATHODE
ANODE
N/C
CATHODE
N/C
ANODE
CATHODE
N/C
N/C
CATHODE
ANODE
ANODE
ANODE
Top View
Bottom View
Top View
Top View
ORDERING INFORMATION
Ordering No.
Accuracy
0.3%
Output Voltage
1.235V
Packages
3-Pin SOT-89
3-Pin SOT-89
8-Pin SOIC
8-Pin SOIC
SPX1004M1-1.2
SPX1004M1-1.2/TR
SPX1004S1-1.2
0.3%
1.235V
0.3%
1.235V
SPX1004S1-1.2/TR
SPX1004S2-1.2
0.3%
1.235V
0.3%
1.235V
8-Pin SOIC,
alternate pinout
SPX1004S2-1.2/TR
0.3%
1.235V
8-Pin SOIC,
alternate pinout
SPX1004N-1.2
0.3%
0.3%
0.8%
1.235V
1.235V
2.500V
3-Pin TO-92
3-Pin TO-92
3-Pin SOT-89
SPX1004N-1.2/TR
SPX1004M1-2.5
SPX1004M1-2.5/TR
SPX1004S1-2.5
0.8%
0.8%
0.8%
0.8%
2.500V
2.500V
2.500V
2.500V
3-Pin SOT-89
8-Pin SOIC
8-Pin SOIC
SPX1004S1-2.5/TR
SPX1004S2-2.5
8-Pin SOIC,
alternate pinout
SPX1004S2-2.5/TR
0.8%
2.500V
8-Pin SOIC,
alternate pinout
SPX1004N-2.5
0.8%
0.8%
2.500V
2.500V
3-Pin TO-92
3-Pin TO-92
SPX1004N-2.5/TR
Available in lead free packaging. To order add "-L" suffix to part number.
Example: SPX1004N-1.2/TR = standard; SPX1004N-1.2-L/TR = lead free
/TR = Tape and Reel
Pack quantity is 2,000 for TO-92,
2500 for NSOIC and SOT-89.
Sipex Corporation
Headquarters and
Sales Office
233 South Hillview Drive
Milpitas, CA 95035
Corporation
TEL: (408) 934-7500
FAX: (408) 935-7600
ANALOG EXCELLENCE
Date: 5/25/04
SPX1004 1.2V/2.5V Micropower Voltage Reference
© Copyright 2004 Sipex Corporation
5
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