LM185BYH1.2/883 [NSC]
IC 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, MBCY2, METAL CAN, TO-46, 2 PIN, Voltage Reference;
| 型号： | LM185BYH1.2/883 |
| 厂家： | 
National Semiconductor |
| 描述： | IC 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, MBCY2, METAL CAN, TO-46, 2 PIN, Voltage Reference 输出元件 |
| 文件： | 总10页 (文件大小：121K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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MICROCIRCUIT DATA SHEET
Original Creation Date: 08/15/95
Last Update Date: 02/25/03
MNLM185BY-1.2-X REV 0B0
Last Major Revision Date: 08/15/95
MICROPOWER VOLTAGE REFERENCE DIODE
General Description
The LM185BY-1.2 is a micropower 2-terminal band-gap voltage regulator diode. Operating
over a 10 uA to 20 mA current range, it features exceptionally low dynamic impedance and
good temperature stability. On-chip trimming is used to provide tight voltage tolerance.
Since the LM185BY-1.2 band-gap reference uses only transistors and resistors, low noise
and good long term stability result.
Careful design of the LM185BY-1.2 has made the device exceptionally tolerant of capacitive
loading, making it easy to use in almost any reference application. The wide dynamic
operating range allows its use with widely varying supplies with excellent regulation.
The extremely low power drain of the LM185BY-1.2 makes it useful for micropower circuitry.
This voltage reference can be used to make portable meters, regulators or general purpose
analog circuitry with battery life approaching shelf life. Further, the wide operating
current allows it to replace older references with a tighter tolerance part.
Industry Part Number
NS Part Numbers
LM185BY
LM185BYH1.2-SMD
LM185BYH1.2/883
Prime Die
LM185
Controlling Document
SEE FEATURES SECTION:
Processing
Subgrp Description
Temp (oC)
MIL-STD-883, Method 5004
1
Static tests at
+25
2
Static tests at
+125
-55
3
Static tests at
4
Dynamic tests at
Dynamic tests at
Dynamic tests at
Functional tests at
Functional tests at
Functional tests at
Switching tests at
Switching tests at
Switching tests at
+25
Quality Conformance Inspection
5
+125
-55
6
MIL-STD-883, Method 5005
7
+25
8A
8B
9
+125
-55
+25
10
11
+125
-55
1
MICROCIRCUIT DATA SHEET
MNLM185BY-1.2-X REV 0B0
Features
- Operating current of 10 uA to 20 mA.
- 1.0 Ohms max dynamic impedance (Typical).
- Low temperature coefficient.
- Low voltage reference-1.235V.
- CONTROLLING DOCUMENT:
LM185BYH1.2-SMD
5962-8759405XA
2
MICROCIRCUIT DATA SHEET
Original Creation Date: 08/15/95
Last Update Date: 02/25/03
MNLM185BY-1.2-X REV 0B0
Last Major Revision Date: 08/15/95
MICROPOWER VOLTAGE REFERENCE DIODE
General Description
The LM185BY-1.2 is a micropower 2-terminal band-gap voltage regulator diode. Operating
over a 10 uA to 20 mA current range, it features exceptionally low dynamic impedance and
good temperature stability. On-chip trimming is used to provide tight voltage tolerance.
Since the LM185BY-1.2 band-gap reference uses only transistors and resistors, low noise
and good long term stability result.
Careful design of the LM185BY-1.2 has made the device exceptionally tolerant of capacitive
loading, making it easy to use in almost any reference application. The wide dynamic
operating range allows its use with widely varying supplies with excellent regulation.
The extremely low power drain of the LM185BY-1.2 makes it useful for micropower circuitry.
This voltage reference can be used to make portable meters, regulators or general purpose
analog circuitry with battery life approaching shelf life. Further, the wide operating
current allows it to replace older references with a tighter tolerance part.
Industry Part Number
NS Part Numbers
LM185BY
LM185BYH1.2-SMD
LM185BYH1.2/883
Prime Die
LM185
Controlling Document
SEE FEATURES SECTION:
Processing
Subgrp Description
Temp (oC)
MIL-STD-883, Method 5004
1
Static tests at
+25
2
Static tests at
+125
-55
3
Static tests at
4
Dynamic tests at
Dynamic tests at
Dynamic tests at
Functional tests at
Functional tests at
Functional tests at
Switching tests at
Switching tests at
Switching tests at
+25
Quality Conformance Inspection
5
+125
-55
6
MIL-STD-883, Method 5005
7
+25
8A
8B
9
+125
-55
+25
10
11
+125
-55
3
MICROCIRCUIT DATA SHEET
MNLM185BY-1.2-X REV 0B0
Features
- Operating current of 10 uA to 20 mA.
- 1.0 Ohms max dynamic impedance (Typical).
- Low temperature coefficient.
- Low voltage reference-1.235V.
- CONTROLLING DOCUMENT:
LM185BYH1.2-SMD
5962-8759405XA
4
MICROCIRCUIT DATA SHEET
MNLM185BY-1.2-X REV 0B0
(Absolute Maximum Ratings)
(Note 1)
Reverse Current
30mA
10mA
Forward Current
Operating Temperature Range
Maximum Junction Temperature
Storage Temperature
-55 C to +125 C
150 C
-55 C to +150 C
300 C
Lead Temperature
(Soldering, 10 seconds)
Thermal Resistance
ThetaJA
H-Pkg (Still Air)
H-Pkg (500LF/Min Air flow)
300 C/W
139 C/W
ThetaJC
H-Pkg
57 C/W
TBD
Package Weight
(Typical)
H-Pkg
ESD Tolerance
(Note 2)
4000V
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
Operating Ratings indicate conditions for which the device is functional, but do not
guarantee specific performance limits. For guaranteed specifications and test
conditions, see the Electrical Characteristics. The guaranteed specifications apply
only for the test conditions listed. Some performance characteristics may degrade
when the device is not operated under the listed test conditions.
Note 2: Human body model, 1.5k Ohms in series with 100pF
5
MICROCIRCUIT DATA SHEET
MNLM185BY-1.2-X REV 0B0
Electrical Characteristics
DC PARAMETERS
PIN-
NAME
SUB-
SYMBOL
Vref
PARAMETER
CONDITIONS
NOTES
MIN
MAX UNIT
GROUPS
Reverse Breakdown Ir = 10uA
Voltage
1.223 1.247 V
1.205 1.26
1.223 1.247 V
1.205 1.26
1.223 1.247 V
1
Ir = 20uA
V
2, 3
1
Ir = 1mA
V
2, 3
1
Ir = 20mA
1.205 1.26
V
2, 3
1
Delta
Reverse Breakdown 10uA < Ir < 1mA
-1.0
-1.5
1.0
1.5
mV
mV
mV
mV
V
Vref/Delta Voltage Change
Ir
with Current
20uA < Ir < 1mA
1mA < Ir < 20mA
2, 3
1
-10.0 10.0
-20.0 20.0
2, 3
1
Vf
Tc
Forward Bias
Voltage
If = 2mA
-1.0
-0.4
Temperature
Coefficient
1
50
ppm/ 2, 3
C
Note 1: The average temperature coefficient is defined as the maximum deviation of reference
voltage at all measured temperatures between the operating Tmax and Tmin, divided by
Tmax - Tmin. The measured temperatures are -55 C, -40 C, 0 C, 25 C, 70 C, 85 C and
125 C.
6
MICROCIRCUIT DATA SHEET
MNLM185BY-1.2-X REV 0B0
Graphics and Diagrams
GRAPHICS#
DESCRIPTION
05886HRB2
H02ARE
METAL CAN (H), TO-39, 3LD, .200 DIA P.C. (B/I CKT)
METAL CAN, TO-46,2LD, .100 DIA P.C. (P/P DWG)
METAL CAN (H-1.2), TO-46, 2 LEAD (PINOUT)
P000363A
See attached graphics following this page.
7
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