SPX385AM1-1.2/TR [SIPEX]
Micropower Voltage Reference; 微功耗电压参考
| 型号： | SPX385AM1-1.2/TR |
| 厂家： | 
SIPEX CORPORATION |
| 描述： | Micropower Voltage Reference |
| 文件： | 总8页 (文件大小：224K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
SPX385-1.2
Micropower Voltage Reference
FEATURES
■ Low Output Voltage ................................ 1.235V
■ Dynamic Impedance...............................1Ω max
■ Low Temperature Coefficient........30ppm/°C (typ)
■ Operating Current........................ 10µA to 20mA
■ Extended Temperature Range .. -40°C to +85°C
■ Initial Tolerance..................................1% and 2%
■ Pin Compatible with LM185/285/385, 1.23V
ANODE
N/C
1
2
3
4
8
7
6
5
N/C
N/C
N/C
SPX385-1.2
N/C
N/C
8 Pin nSOIC
APPLICATIONS
CATHODE
■ Portable Meter Reference
■ Portable Test Instruments
■ Battery Operated Systems
■ Panel Meters
Now Available in Lead Free Packaging
DESCRIPTION
The SPX385-1.2 is a micropower 2-terminal band-gap voltage reference with a very wide
operating current range from 10µA to 20mA that provides a stable voltage. The high stability of
thisdeviceisprimarilytheresultofthelowtemperaturecoefficientThinFilmResistorprocessand
Laser Trimming of the output voltage at the wafer level.
The SPX385-1.2 is available in a TO-92, SOIC-8 and SOT-89 package with an operating
temperature range of -40°C to 85°C. A 2.5 and 5.0 volt devices are also available - SPX385-2.5,
SPX385-5.0.
BLOCK DIAGRAM
Cathode (K)
+
-
1.235V
Anode (A)
Figure 1: Block Diagram
Date: 5/25/04
SPX385-1.2 Micropower Voltage Reference
© Copyright 2004 Sipex Corporation
1
ABSOLUTE MAXIMUM RATINGS
TYPICAL THERMAL RESISTANCES
Reverse Current (IKA)) ................................................................. 30mA
Forward Current (IAK) .................................................................. 10mA
Operating Temperature Range (TA) ................................. -40 to +85°C
Continuos Power Dissipation at 25°C (PD)
PACKAGE
0JA
0JA
TYPICAL
DERATING
TO-92 ................................................................... 775mW
SOIC-8 ................................................................. 750mW
SOT-89 ............................................................... 1000mW
Junction Temperature (TJ) .......................................................... 150°C
Storage Temperature (TSTG) ............................................ - 65 to 150°C
Lead Temperature (Soldering 10 sec.), TL .................................. 300°C
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
Stresses greater than those listed under ABSOLUTE MAXIMUM RAT-
INGS 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
abovethoseindicatedintheoperationalsectionsofthisspecificationisnot
implied. Exposure to absolute maximum rating conditions for extended
periods may affect reliability.
ELECTRICAL CHARACTERISTICS
IIN = 100µA, TA = 25°C, unless otherwise specified.
SPX385A-1.2
SPX385-1.2
PARAMETER
CONDITIONS
MIN.
TYP. MAX MIN. TYP. MAX. UNIT
Reference Voltage
1.223 1.235 1.247 1.205 1.235 1.260
V
Dynamic Output
Impedance
F = 20Hz
IR = 100µA
0.6
1.0
0.6
1.0
Ω
Reference Voltage
Change with IR
10µA ≤ IR ≤ 20mA
10
20
10
20
mV
Temperature Coefficient
Minimum Operating Current
Output Wideband Noise
Operating Temperature
Note 1
30
8
50
10
30
8
50 ppm/°C
10
µA
µVrms
°C
10Hz ≤ f ≤ 10kHz
60
60
-40
+85
-40
+85
Note 1. Three-point measurement guarantees the error band over the specified temperature range.
*
CALCULATING AVERAGE TEMPERATURE COEFFICIENT (TC)
mV
0
ppm
0
%
0
∆VKA(mV)
∆VKA
TC in mV/°C
=
=
∆TA
∆T
∆VKA
∆VKA at 25°C
∆TA
-5
x 100
(
)
%
TC in
/°C
5000
0.5
∆VKA
∆V at 25°C
KA
x
106
(
)
TC in ppm/°C
=
0
15
30
45
60
75
90
105
∆TA
Junction Temperature (°C)
0.033 mV/°C
0.0027 %/°C
27 ppm/C
Figure 2. VREF vs. Temperature
Date: 5/25/04
SPX385-1.2 Micropower Voltage Reference
© Copyright 2004 Sipex Corporation
2
TYPICAL PERFORMANCE CHARACTERISTICS
30
Temperature Range: 0°C to 85°C
25
V
V
KA
= V
REF
IN
20
15
10
5
I
K
0
-5
-10
-15
-20
-2
-1
0
1
1.23
2
3
VKA - Cathode Voltage (V)
Figure 3. Test Circuit for VKA=VREF
Figure 4. High Current Operating Characteristics
18
1.250
IK = 10mA
Temperature Range: 0°C to 85°C
1.245
12
1.240
1.235
1.230
85 °C
6
25 °C
-0 °C
1.225
1.200
1.150
0
1.100
-1.0
-0.5
0
0.5
1.0
1.5
-60
-30
0
30
60
90
120
VKA - Cathode Voltage (V)
TA - Ambient Temperature (°C)
Figure 6. Low Current Operating Characteristics
Figure 5. Reference Voltage vs. Ambient Temperature
SPX385-1.2
1.23V
=
SPX385-1.2
30V
* I
OUT
1.23V
R2
R2
* I
=
OUT
C1
C1
150pF
R1
100k
150pF
R1
100k
2
3
7
–
2
3
7
–
6
LM312
6
LM312
+
4
+
4
I
*
OUT
R2
I
*
OUT
R2
-1.5V to -27V
1.5V to 27V
-30V
Figure 7b. Precision 1µA to 1mA Current Source
Figure 7a. Precision 1µA to 1mA Current Sink
Date: 5/25/04
SPX385-1.2 Micropower Voltage Reference
© Copyright 2004 Sipex Corporation
3
TYPICAL PERFORMANCE CHARACTERISTICS
9V
1.5V
500k
3k
1.2V
1.2V
SPX385-1.2
SPX385-1.2
Figure 8. Reference from 1.5V Battery
Figure 9. Micropower Reference from 9V Battery
I
Q
V
= 15V
IN
V
= 2.3V to 30V
IN
1M
7
2
3
+
6
10V
LM4250C
LM334
-
8
4.3k
4
3.5M
500k
150pF
22M
OUT
1.2V
SPX385-1.2
SPX385-1.2
I
≅ 20µA Standby Current
Q
Figure 11: Precision Micropower 10V Reference
Figure 10. Wide Input Range Reference
Date: 5/25/04
SPX385-1.2 Micropower Voltage Reference
© Copyright 2004 Sipex Corporation
4
PACKAGE: 8 PIN NSOIC
D
e
E/2
E1
E
E1/2
SEE VIEW C
1
b
INDEX AREA
(D/2 X E1/2)
Ø1
TOP VIEW
Gauge Plane
L2
Ø
Ø1
Seating Plane
L
L1
VIEW C
A2
A
SEATING PLANE
A1
SIDE VIEW
b
8 Pin NSOIC
(JEDEC MS-012,
AA - VARIATION)
DIMENSIONS
Minimum/Maximum
(mm)
WITH PLATING
COMMON HEIGHT DIMENSION
SYMBOL
MIN NOM MAX
1.75
0 . 2 5
1.65
0.51
0.25
A
1.35
-
-
-
-
-
c
A1
A2
b
c
D
E
0.10
1.25
0.31
0.17
BASE METAL
4.90 BSC
6.00 BSC
3.90 BSC
1.27 BSC
CONTACT AREA
E1
e
L
0.40
-
1.27
L1
L2
1.04 REF
0.25 BSC
8 PIN NSOIC
0º
5º
-
-
8º
Ø
Ø1
15º
Date: 5/25/04
SPX385-1.2 Micropower Voltage Reference
© Copyright 2004 Sipex Corporation
5
PACKAGE: 3 PIN TO-92
L
e1
e
W
D
A
b
S1
DIMENSIONS
Minimum/Maximum
(mm)
3 PIN TO-92
CARSEM DWG #
TLG920001
COMMON HEIGHT DIMENSION
SYMBOL
MIN NOM MAX
R
4.95
0.51
3.94
2.67
A
b
E
e
e1
L
R
4.32
-
-
-
-
-
-
0.36
3.30
2.41
1.14
12.70
2.16
1.40
15.49
2.41
E
-
1.14
1.52
S1
W
-
-
-
-
0.41
4.45
4º
0.56
4.95
6º
D
∂
∂(2x)
3 PIN TO-92
Date: 5/25/04
SPX385-1.2 Micropower Voltage Reference
© Copyright 2004 Sipex Corporation
6
PACKAGE: 3 PIN SOT-89
D
D1
3
Ø1.0
H
E
5’(2x)
1
2
e
e1
C
3 PIN SOT-89
LINGSEN #
PO-SOT-004
Dimensions in (mm)
MIN NOM MAX
A
b
1.40 1.50
0.36 0.42
0.41 0.47
1.60
0.48
0.53
B’(2x)
b1
C
0.38 0.40
4.40 4.50
0.43
4.60
RO.15
D
D1
E
1.40 1.60
2.40 2.50
1.45 1.50
1.75
2.60
1.55
e
b
b
b1
2.90 3.00
3.10
4.25
e1
H
L
3.94
0.80
-
-
1.20
3 PIN SOT-89
Date: 5/25/04
SPX385-1.2 Micropower Voltage Reference
© Copyright 2004 Sipex Corporation
7
PINOUTS
8-Pin Surface Mount (S)
SOT-89 (M1)
TO-92 (N)
N/C
1
2
3
4
8
7
6
5
ANODE
N/C
1
2
3
N/C
N/C
1
2
3
N/C
N/C
N/C
CATHODE
ANODE
N/C
ANODE
CATHODE
CATHODE
Top View
Top View
Bottom View
ORDERING INFORMATION
Part Number
Accuracy
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
2.0%
2.0%
2.0%
2.0%
2.0%
2.0%
Output Voltage
1.235V
1.235V
1.235V
1.235V
1.235V
1.235V
1.235V
1.235V
1.235V
1.235V
1.235V
1.235V
Package Type
3-Pin SOT-89
3-Pin SOT-89
8-Pin NSOIC
8-Pin NSOIC
3-Pin TO-92
3-Pin TO-92
3-Pin SOT-89
3-Pin SOT-89
8-Pin NSOIC
8-Pin NSOIC
3-Pin TO-92
3-Pin TO-92
SPX385AM1-1.2
SPX385AM1-1.2/TR
SPX385AS-1.2
SPX385AS-1.2/TR
SPX385AN-1.2
SPX385AN-1.2/TR
SPX385M1-1.2
SPX385M1-1.2/TR
SPX385S-1.2
SPX385S-1.2/TR
SPX385N-1.2
SPX385N-1.2/TR
Available in lead free packaging. To order add "-L" suffix to part number.
Example: SPX385S-1.2/TR = standard; SPX385S-L-1.2/TR = lead free
/TR = Tape and Reel
Pack quantity is 2000 for TO-92; 2500 for NSOIC and SOT-89.
Sipex Corporation
®
Headquarters and
Sales Office:
233 Hillview Dr
Milpitas, CA 95035
ANALOG EXCELLENCE
TEL: (408) 934-7500
FAX: (408) 935-7600
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the
application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others.
Date: 5/25/04
SPX385-1.2 Micropower Voltage Reference
© Copyright 2004 Sipex Corporation
8
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