LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLOS456J – JANUARY 2005 – REVISED SEPTEMBER 2006
FEATURES
•
•
Fixed Output Voltages of 2.048 V, 2.5 V, 3 V,
4.096 V, 5 V, 8.192 V, and 10 V
Tight Output Tolerances and Low
Temperature Coefficient
– Max 0.1%, 100 ppm/°C – A Grade
– Max 0.2%, 100 ppm/°C – B Grade
– Max 0.5%, 100 ppm/°C – C Grade
– Max 1.0%, 150 ppm/°C – D Grade
Low Output Noise…35
µV
RMS
Typ
Wide Operating Current Range…45
µA
Typ to
15 mA
Stable With All Capacitive Loads; No Output
Capacitor Required
Available in Extended Temperature
Range…–40°C to 125°C
DBZ (SOT-23) PACKAGE
(TOP VIEW)
CATHODE
ANODE
1
3*
2
* Pin 3 is attached to substrate and must be
connected to ANODE or left open.
DCK (SC-70) PACKAGE
(TOP VIEW)
•
•
•
•
ANODE
NC
CATHODE
1
2
3
5
4
NC
NC
NC – No internal connection
LP (TO-92/TO-226) PACKAGE
(TOP VIEW)
APPLICATIONS
•
•
•
•
•
•
•
•
Data-Acquisition Systems
Power Supplies and Power-Supply Monitors
Instrumentation and Test Equipment
Process Controls
Precision Audio
Automotive Electronics
Energy Management
Battery-Powered Equipment
ANODE
CATHODE
NC
NC – No internal connection
DESCRIPTION/ORDERING INFORMATION
The LM4040 series of shunt voltage references are versatile, easy-to-use references that cater to a vast array of
applications. The 2-pin fixed-output device requires no external capacitors for operation and is stable with all
capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and low temperature
coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The
LM4040 uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage
tolerances, ranging from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility
is offered to designers in choosing the best cost-to-performance ratio for their applications.
Packaged in space-saving SC-70 and SOT-23-3 packages and requiring a minimum current of 45
µA
(typ), the
LM4040 also is ideal for portable applications. The LM4040xI is characterized for operation over an ambient
temperature range of –40°C to 85°C. The LM4040xQ is characterized for operation over an ambient temperature
range of –40°C to 125°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2006, Texas Instruments Incorporated
LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLOS456J – JANUARY 2005 – REVISED SEPTEMBER 2006
www.ti.com
ORDERING INFORMATION
T
A
DEVICE
GRADE
V
KA
SC-70 (DCK)
2.048 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
2.5 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
3V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
A grade:
0.1% initial
accuracy
and
100 ppm/°C
temperature
coefficient
SC-70 (DCK)
4.096 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
5V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
8.192 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
10 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
(1)
(2)
PACKAGE
(1)
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
ORDERABLE
PART NUMBER
LM4040A20IDCKR
LM4040A20IDBZR
LM4040A20IDBZT
LM4040A20ILP
LM4040A20ILPR
LM4040A25IDCKR
LM4040A25IDBZR
LM4040A25IDBZT
LM4040A25ILP
LM4040A25ILPR
LM4040A30IDCKR
LM4040A30IDBZR
LM4040A30IDBZT
LM4040A30ILP
LM4040A30ILPR
LM4040A41IDCKR
LM4040A41IDBZR
LM4040A41IDBZT
LM4040A41ILP
LM4040A41ILPR
LM4040A50IDCKR
LM4040A50IDBZR
LM4040A50IDBZT
LM4040A50ILP
LM4040A50ILPR
LM4040A82IDCKR
LM4040A82IDBZR
LM4040A82IDBZT
LM4040A82ILP
LM4040A82ILPR
LM4040A10IDCKR
LM4040A10IDBZR
LM4040A10IDBZT
LM4040A10ILP
LM4040A10ILPR
TOP-SIDE
MARKING
(2)
MS_
4MC_
PREVIEW
P2_
4NG_
PREVIEW
P9_
4M6_
PREVIEW
P4_
4M2_
PREVIEW
N5_
4NA_
PREVIEW
PD_
4NL_
PREVIEW
PH_
4NQ_
PREVIEW
–40°C to 85°C
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
DBZ/DCK: The actual top-side marking has one additional character that designates the assembly/test site.
2
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LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLOS456J – JANUARY 2005 – REVISED SEPTEMBER 2006
ORDERING INFORMATION (continued)
T
A
DEVICE
GRADE
V
KA
SC-70 (DCK)
2.048 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
2.5 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
3V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
B grade:
0.2% initial
accuracy
and
100 ppm/°C
temperature
coefficient
SC-70 (DCK)
4.096 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
5V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
8.192 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
10 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
PACKAGE
(1)
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
ORDERABLE
PART NUMBER
LM4040B20IDCKR
LM4040B20IDBZR
LM4040B20IDBZT
LM4040B20ILP
LM4040B20ILPR
LM4040B25IDCKR
LM4040B25IDBZR
LM4040B25IDBZT
LM4040B25ILP
LM4040B25ILPR
LM4040B30IDCKR
LM4040B30IDBZR
LM4040B30IDBZT
LM4040B30ILP
LM4040B30ILPR
LM4040B41IDCKR
LM4040B41IDBZR
LM4040B41IDBZT
LM4040B41ILP
LM4040B41ILPR
LM4040B50IDCKR
LM4040B50IDBZR
LM4040B50IDBZT
LM4040B50ILP
LM4040B50ILPR
LM4040B82IDCKR
LM4040B82IDBZR
LM4040B82IDBZT
LM4040B82ILP
LM4040B82ILPR
LM4040B10IDCKR
LM4040B10IDBZR
LM4040B10IDBZT
LM4040B10ILP
LM4040B10ILPR
TOP-SIDE
MARKING
(2)
MT_
4MD_
PREVIEW
P3_
4NH_
PREVIEW
PA_
4M7_
PREVIEW
P5_
4M3_
PREVIEW
MX_
4NB_
PREVIEW
PE_
4NM_
PREVIEW
PJ_
4NR_
PREVIEW
–40°C to 85°C
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LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLOS456J – JANUARY 2005 – REVISED SEPTEMBER 2006
www.ti.com
ORDERING INFORMATION (continued)
T
A
DEVICE
GRADE
V
KA
SC-70 (DCK)
2.048 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
2.5 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
3V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
C grade:
0.5% initial
accuracy
and
100 ppm/°C
temperature
coefficient
SC-70 (DCK)
4.096 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
5V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
8.192 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
10 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
PACKAGE
(1)
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
ORDERABLE
PART NUMBER
LM4040C20IDCKR
LM4040C20IDBZR
LM4040C20IDBZT
LM4040C20ILP
LM4040C20ILPR
LM4040C25IDCKR
LM4040C25IDBZR
LM4040C25IDBZT
LM4040C25ILP
LM4040C25ILPR
LM4040C30IDCKR
LM4040C30IDBZR
LM4040C30IDBZT
LM4040C30ILP
LM4040C30ILPR
LM4040C41IDCKR
LM4040C41IDBZR
LM4040C41IDBZT
LM4040C41ILP
LM4040C41ILPR
LM4040C50IDCKR
LM4040C50IDBZR
LM4040C50IDBZT
LM4040C50ILP
LM4040C50ILPR
LM4040C82IDCKR
LM4040C82IDBZR
LM4040C82IDBZT
LM4040C82ILP
LM4040C82ILPR
LM4040C10IDCKR
LM4040C10IDBZR
LM4040C10IDBZT
LM4040C10ILP
LM4040C10ILPR
TOP-SIDE
MARKING
(2)
MV_
4MQ_
PREVIEW
M4_
4MU_
NCF25I
PB_
4M8_
PREVIEW
P6_
4M4_
PREVIEW
MZ_
4NC_
PREVIEW
PF_
4NN_
PREVIEW
PK_
4NS_
NFC10I
–40°C to 85°C
4
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LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLOS456J – JANUARY 2005 – REVISED SEPTEMBER 2006
ORDERING INFORMATION (continued)
T
A
DEVICE
GRADE
V
KA
SC-70 (DCK)
2.048 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
2.5 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
3V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
D grade:
1.0% initial
accuracy
and
150 ppm/°C
temperature
coefficient
SC-70 (DCK)
4.096 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
5V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
8.192 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
SC-70 (DCK)
10 V
SOT-23-3 (DBZ)
TO-92/TO-226 (LP)
PACKAGE
(1)
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
ORDERABLE
PART NUMBER
LM4040D20IDCKR
LM4040D20IDBZR
LM4040D20IDBZT
LM4040D20ILP
LM4040D20ILPR
LM4040D25IDCKR
LM4040D25IDBZR
LM4040D25IDBZT
LM4040D25ILP
LM4040D25ILPR
LM4040D30IDCKR
LM4040D30IDBZR
LM4040D30IDBZT
LM4040D30ILP
LM4040D30ILPR
LM4040D41IDCKR
LM4040D41IDBZR
LM4040D41IDBZT
LM4040D41ILP
LM4040D41ILPR
LM4040D50IDCKR
LM4040D50IDBZR
LM4040D50IDBZT
LM4040D50ILP
LM4040D50ILPR
LM4040D82IDCKR
LM4040D82IDBZR
LM4040D82IDBZT
LM4040D82ILP
LM4040D82ILPR
LM4040D10IDCKR
LM4040D10IDBZR
LM4040D10IDBZT
LM4040D10ILP
LM4040D10ILPR
TOP-SIDE
MARKING
(2)
MW_
4MV_
PREVIEW
ME_
4ME_
NFD25I
PC_
4M9_
PREVIEW
P7_
4M5_
PREVIEW
M4_
4ND_
PREVIEW
PG_
4NP_
PREVIEW
PL_
4NT_
NFD10I
–40°C to 85°C
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