ADS8326
REF5040
REF
VOUT
GND
+IN
-IN
VIN
+5V
OPA365
Input
Signal
0V to 4V
+5V +5V
VDD
GND
CBYPASS
1 Fm
R1
50W
C1
1.2nF
C2
22 Fm
1
2
3
4
8
7
6
5
DNC(1)
NC(2)
TRIM/NR
DNC(1)
VIN
TEMP
GND
VOUT
REF50xx
(1) DNC = Do not connect.
(2) NC = No internal connection.
NOTES:
D PACKAGE
(TOP VIEW)
REF5020-EP, REF5025-EP
REF5040-EP, REF5050-EP
www.ti.com
SBOS471A –APRIL 2010–REVISED JUNE 2010
LOW-NOISE, VERY LOW DRIFT, PRECISION VOLTAGE REFERENCE
Check for Samples: REF5020-EP,REF5025-EP,REF5040-EP,REF5050-EP
1FEATURES SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
2• LOW TEMPERATURE DRIFT: • Controlled Baseline
5 ppm/°C (max) • One Assembly/Test Site
• HIGH ACCURACY: • One Fabrication Site
0.08% (max) • Available in Military (–55°C/125°C)
• LOW NOISE: 3 mVPP/V Temperature Range(1)
• HIGH OUTPUT CURRENT: ±10 mA • Extended Product Life Cycle
• Extended Product-Change Notification
APPLICATIONS • Product Traceability
• 16-BIT DATA ACQUISITION SYSTEMS DESCRIPTION
• ATE EQUIPMENT
• INDUSTRIAL PROCESS CONTROL The REF50xx is a family of low-noise, low-drift, very
high precision voltage references. These references
• MEDICAL INSTRUMENTATION are capable of both sinking and sourcing, and are
• OPTICAL CONTROL SYSTEMS very robust with regard to line and load changes.
• PRECISION INSTRUMENTATION (1) Custom temperature ranges available
1Please 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.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Copyright © 2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
REF5020-EP, REF5025-EP
REF5040-EP, REF5050-EP
SBOS471A –APRIL 2010–REVISED JUNE 2010
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ORDERING INFORMATION(1)
PRODUCT OUTPUT VOLTAGE PACKAGE(2) ORDERABLE PART NUMBER TOP-SIDE MARKING
REF5020MDREP 2.048 V SOIC-D REF5020MDREP 5020EP
REF5025MDTEP 2.5 V SOIC-D REF5025MDTEP 5025EP
REF5040MDREP 4.096 V SOIC-D REF5040MDREP 5040EP
REF5050MDREP 5 V SOIC-D REF5050MDREP 5050EP
(1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
ABSOLUTE MAXIMUM RATINGS(1)
PARAMETER REF50xx UNIT
Input Voltage 18 V
Output Short-Circuit 30 mA
Operating Temperature Range –55 to 125 °C
Storage Temperature Range –65 to 150 °C
Junction Temperature (TJmax) 150 °C
Human Body Model (HBM) 3000 V
ESD Rating Charged Device Model (CDM) 1000 V
(1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may
degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those specified is not implied.
2Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP
REF5020-EP, REF5025-EP
REF5040-EP, REF5050-EP
www.ti.com
SBOS471A –APRIL 2010–REVISED JUNE 2010
ELECTRICAL CHARACTERISTICS: PER DEVICE
Boldface limits apply over the specified temperature range, TA= –55°C to 125°C.
At TA= 25°C, ILOAD = 0, CL= 1 mF, and VIN = (VOUT + 0.2 V) to 18 V, unless otherwise noted.
PARAMETER CONDITIONS MIN TYP MAX UNIT
REF5020 (VOUT = 2.048V)(1)
OUTPUT VOLTAGE
Output Voltage VOUT 2.7 V < VIN < 18 V 2.048 V
Initial Accuracy –0.05 0.05 %
Over Temperature –0.08 0.08 %
NOISE
Output Voltage Noise f = 0.1 Hz to 10 Hz 6 mVPP
REF5025 (VOUT = 2.5 V)
OUTPUT VOLTAGE
Output Voltage VOUT 2.5 V
Initial Accuracy –0.05 0.05 %
NOISE
Output Voltage Noise f = 0.1 Hz to 10 Hz 7.5 mVPP
REF5040 (VOUT = 4.096V)
OUTPUT VOLTAGE
Output Voltage VOUT 4.096 V
Initial Accuracy –0.05 0.05 %
Over Temperature –0.08 0.08 %
NOISE
Output Voltage Noise f = 0.1 Hz to 10 Hz 12 mVPP
REF5050 (VOUT = 5 V)
OUTPUT VOLTAGE
Output Voltage VOUT 5 V
Initial Accuracy –0.05 0.05 %
Over Temperature –0.08 0.08 %
NOISE
Output Voltage Noise f = 0.1 Hz to 10 Hz 15 mVPP
(1) For VOUT ≤2.5 V, the minimum supply voltage is 2.7 V.
Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP
REF5020-EP, REF5025-EP
REF5040-EP, REF5050-EP
SBOS471A –APRIL 2010–REVISED JUNE 2010
www.ti.com
ELECTRICAL CHARACTERISTICS: ALL DEVICES
Boldface limits apply over the specified temperature range, TA= –55°C to 125°C.
At TA= 25°C, ILOAD = 0, CL= 1 mF, and VIN = (VOUT + 0.2 V) to 18 V, unless otherwise noted. REF50xx
PARAMETER CONDITIONS MIN TYP MAX UNIT
OUTPUT VOLTAGE TEMPERATURE DRIFT
Output Voltage Temperature dVOUT/dT
Drift
REF5025 4 6.5 ppm/°C
REF5050 4 6.5 ppm/°C
All other devices 3 5 ppm/°C
LINE REGULATION
Line Regulation dVOUT/dVIN
REF5020(1) VIN = 2.7 V to 18V 0.1 1 ppm/V
All other devices VIN = VOUT + 0.2 V 0.1 1 ppm/V
Over Temperature 1 3 ppm/V
LOAD REGULATION
Load Regulation dVOUT/dILOAD
REF5020 –10 mA < ILOAD < +10 mA, VIN = 3 V 20 30 ppm/mA
All other devices –10 mA < ILOAD < +10 mA, VIN = VOUT + 0.75 V 20 30 ppm/mA
Over Temperature 60 ppm/mA
SHORT-CIRCUIT CURRENT
Short-Circuit Current ISC VOUT = 0 25 mA
TEMP PIN
Voltage Output At TA= 25°C 575 mV
Temperature Sensitivity 2.64 mV/°C
TURN-ON SETTLING TIME
Turn-On Settling Time To 0.1% with CL= 1 mF 200 ms
POWER SUPPLY
Supply Voltage VSSee Note (1) VOUT + 0.2(1) 18 V
Quiescent Current 0.8 1 mA
Over Temperature 1.25 mA
TEMPERATURE RANGE
Specified Range –55 125 °C
Operating Range –55 125 °C
Thermal Resistance qJA 150 °C/W
(1) For VOUT ≤2.5 V, the minimal supply voltage is 2.7 V.
4Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP
0
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
3.25
3.50
3.75
4.00
4.25
4.50
4.75
5.00
Drift(ppm/ C)°
Population(%)
0
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
5.50
6.00
6.50
7.00
7.50
8.00
Drift(ppm/ C)°
Population(%)
-50 -25
Temperature( C)°
0.05
0.04
0.03
0.02
0.01
0
-0.01
-0.02
-0.03
-0.04
-0.05
OutputVoltageAccuracy(%)
1250 25 50 75 100
-0.05
-0.04
-0.03
-0.02
-0.01
0
0.01
0.02
0.03
0.04
0.05
OutputInitialAccuracy(%)
Population(%)
REF5020-EP, REF5025-EP
REF5040-EP, REF5050-EP
www.ti.com
SBOS471A –APRIL 2010–REVISED JUNE 2010
TYPICAL CHARACTERISTICS
At TA= 25°C, ILOAD = 0, and VS= VOUT + 0.2 V, unless otherwise noted.
For VOUT ≤2.5 V, the minimum supply voltage is 2.7 V.
TEMPERATURE DRIFT TEMPERATURE DRIFT
(0°C to +85°C) (–40°C to +125°C)
Figure 1. Figure 2.
OUTPUT VOLTAGE ACCURACY
OUTPUT VOLTAGE vs
INITIAL ACCURACY TEMPERATURE
Figure 3. Figure 4.
Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP
10
Frequency(Hz)
160
140
120
100
80
60
40
20
0
PSRR(dB)
100k100 1k 10k
-15 -10 -5
LoadCurrent(mA)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
DropoutVoltage(V)
150 5 10
+125 C°
+25 C°
- °40 C
-10 -5
Load Current (mA)
2.50125
2.50100
2.50075
2.50050
2.50025
2.50000
2.49975
2.49950
2.49925
2.49900
2.49875
Output Voltage (V)
100 5
+125 C°
+25 C°
- °40 C
-50 -25
Temperature( C)°
0.9
0.8
0.7
0.6
0.5
0.4
0.3
TEMPPinOutputVoltage(V)
1250 25 50 75 100
REF5020-EP, REF5025-EP
REF5040-EP, REF5050-EP
SBOS471A –APRIL 2010–REVISED JUNE 2010
www.ti.com
TYPICAL CHARACTERISTICS (continued)
At TA= 25°C, ILOAD = 0, and VS= VOUT + 0.2 V, unless otherwise noted.
For VOUT ≤2.5 V, the minimum supply voltage is 2.7 V.
POWER-SUPPLY REJECTION RATIO DROPOUT VOLTAGE
vs vs
FREQUENCY LOAD CURRENT
Figure 5. Figure 6.
REF5025 OUTPUT VOLTAGE TEMP PIN OUTPUT VOLTAGE
vs vs
LOAD CURRENT TEMPERATURE
Figure 7. Figure 8.
6Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP
-50 -25
Temperature( C)°
1050
1000
950
900
850
800
750
700
650
600
QuiescentCurrent(mA)
1250 25 50 75 100
-50 -25
Temperature( C)°
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
LineRegulation(ppm/V)
1250 25 50 75 100
REF5020-EP, REF5025-EP
REF5040-EP, REF5050-EP
www.ti.com
SBOS471A –APRIL 2010–REVISED JUNE 2010
TYPICAL CHARACTERISTICS (continued)
At TA= 25°C, ILOAD = 0, and VS= VOUT + 0.2 V, unless otherwise noted.
For VOUT ≤2.5 V, the minimum supply voltage is 2.7 V. QUIESCENT CURRENT
QUIESCENT CURRENT vs
vs
TEMPERATURE INPUT VOLTAGE
Figure 9. Figure 10.
LINE REGULATION SHORT-CIRCUIT CURRENT
vs vs
TEMPERATURE TEMPERATURE
Figure 11. Figure 12.
Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 7
Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP
1s/div
1 V/divm
40µs/div
2V/div
1V/div
VOUT
VIN
400 µs/div
5V/div
1V/div
VOUT
VIN
20 s/divm
-1mA -1mA
+1mA
ILOAD
VOUT
5mV/div
1mA/div
20 s/divm
-10mA
+10mA+10mA
ILOAD
VOUT
2mV/div
10mA/div
100 s/divm
-1mA -1mA
+1mA
ILOAD
VOUT
5mV/div
1mA/div
REF5020-EP, REF5025-EP
REF5040-EP, REF5050-EP
SBOS471A –APRIL 2010–REVISED JUNE 2010
www.ti.com
TYPICAL CHARACTERISTICS (continued)
At TA= 25°C, ILOAD = 0, and VS= VOUT + 0.2 V, unless otherwise noted.
For VOUT ≤2.5 V, the minimum supply voltage is 2.7 V. STARTUP
NOISE (REF5025, CL= 1 mF)
Figure 13. Figure 14.
STARTUP LOAD TRANSIENT
(REF5025, CL= 10 mF) (CL= 1mF, IOUT = 1mA)
Figure 15. Figure 16.
LOAD TRANSIENT LOAD TRANSIENT
(CL= 1mF, IOUT = 10mA) (CL= 10mF, IOUT = 1mA)
Figure 17. Figure 18.
8Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP
100 s/divm
-10mA -10mA
+10mA
ILOAD
VOUT
2mV/div
10mA/div
20ms/div
VOUT
VIN
5mV/div
500mV/div
100 s/divm
VOUT
VIN
5mV/div
500mV/div
REF5020-EP, REF5025-EP
REF5040-EP, REF5050-EP
www.ti.com
SBOS471A –APRIL 2010–REVISED JUNE 2010
TYPICAL CHARACTERISTICS (continued)
At TA= 25°C, ILOAD = 0, and VS= VOUT + 0.2 V, unless otherwise noted.
For VOUT ≤2.5 V, the minimum supply voltage is 2.7 V.
LOAD TRANSIENT LINE TRANSIENT
(CL= 10mF, IOUT = 10mA) (CL= 1mF)
Figure 19. Figure 20.
LINE TRANSIENT
(CL= 10mF)
Figure 21.
Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP
R5
60kW
REF50xx
TEMP VOUT
GND
TRIM/NR
VIN
aT
aT
(10 Am
at+25 C)°
R2 R1
R3
R4
10kW
1kW
1.2V
DNC
TEMP VOUT
VIN
GND
DNC
NC
TRIM/NR
REF50xx
+VSUPPLY
10kW
1kW
470kW
DNC
TEMP VOUT
VIN
GND
DNC
NC
TRIM/NR
REF50xx
CBYPASS
1 Fto10 Fm m
CL
1 Fto50 Fm m
+VSUPPLY
VOUT
REF5020-EP, REF5025-EP
REF5040-EP, REF5050-EP
SBOS471A –APRIL 2010–REVISED JUNE 2010
www.ti.com
APPLICATION INFORMATION
The REF50xx is family of low-noise, precision SUPPLY VOLTAGE
bandgap voltage references that are specifically
designed for excellent initial voltage accuracy and The REF50xx family of voltage references features
drift. Figure 22 shows a simplified block diagram of extremely low dropout voltage. With the exception of
the REF50xx. the REF5020, which has a minimum supply
requirement of 2.7 V, these references can be
operated with a supply of 200 mV above the output
voltage in an unloaded condition. For loaded
conditions, a typical dropout voltage versus load plot
is shown in Figure 6 of the Typical Characteristics.
OUTPUT ADJUSTMENT USING THE TRIM/NR
PIN
The REF50xx provides a very accurate,
factory-trimmed voltage output. However, VOUT can
be adjusted using the trim and noise reduction pin
(TRIM/NR, pin 5). Figure 24 shows a typical circuit
that allows an output adjustment of ±15 mV
Figure 22. REF50xx Simplified Block Diagram
BASIC CONNECTIONS
Figure 23 shows the typical connections for the
REF50xx. A supply bypass capacitor ranging
between 1 mF to 10 mF is recommended. A 1-mF to
50-mF output capacitor (CL) must be connected from
VOUT to GND. The ESR value of CLmust be less than
or equal to 1.5 Ωto ensure output stability. To Figure 24. VOUT Adjustment Using the TRIM/NR
minimize noise, the recommended ESR of CLis Pin
between 1 Ωand 1.5 Ω.The REF50xx allows access to the bandgap through
the TRIM/NR pin. Placing a capacitor from the
TRIM/NR pin to GND (see Figure 25) in combination
with the internal R3and R4resistors creates a
low-pass filter. A capacitance of 1 mF creates a
low-pass filter with the corner frequency between 10
Hz and 20 Hz. Such a filter decreases the overall
noise measured on the VOUT pin by half. Higher
capacitance results in a lower filter cutoff frequency,
further reducing output noise. Note that use of this
capacitor increases startup time.
Figure 23. Basic Connections
10 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP
DNC
TEMP VOUT
VIN
GND
DNC
NC
TRIM/NR
REF50xx
C1
1 Fm
+VSUPPLY
DNC
TEMP VOUT
VIN
GND
DNC
NC
TRIM/NR
REF50xx
VTEMP
2.6mV/ C°OPA(1)
NOTE:(1)Lowdriftopamp,suchastheOPA333,OPA335,orOPA376.
+V
Drift +ǒVOUTMAX *VOUTMIN
VOUT Temp RangeǓ 106(ppm)
REF5020-EP, REF5025-EP
REF5040-EP, REF5050-EP
www.ti.com
SBOS471A –APRIL 2010–REVISED JUNE 2010
The TEMP pin has high output impedance (see
Figure 22). Loading this pin with a low-impedance
circuit induces a measurement error; however, it does
not have any effect on VOUT accuracy. To avoid
errors caused by low-impedance loading, buffer the
TEMP pin output with a suitable low-temperature drift
op amp, such as the OPA333,OPA335,orOPA376,
as shown in Figure 26.
Figure 25. Noise Reduction Using the TRIM/NR
Pin
TEMPERATURE DRIFT
The REF50xx is designed for minimal drift error,
which is defined as the change in output voltage over
temperature. The drift is calculated using the box
method, as described by the following equation: Figure 26. Buffering the TEMP Pin Output
(1) POWER DISSIPATION
The REF50xx features a maximum drift coefficient of The REF50xx family is specified to deliver current
3 ppm/°C for the high-grade version, and 8 ppm/°C loads of ±10 mA over the specified input voltage
for the standard-grade. range. The temperature of the device increases
according to the equation:
TJ= TA+ PD×qJA (2)
TEMPERATURE MONITORING Where:
TJ= Junction temperature (°C)
The temperature output terminal (TEMP, pin 3)
provides a temperature-dependent voltage output TA= Ambient temperature (°C)
with approximately 60-kΩsource impedance. As PD= Power dissipated (W)
seen in Figure 8, the output voltage follows the qJA = Junction-to-ambient thermal resistance
nominal relationship: (°C/W)
VTEMP PIN = 509 mV + 2.64 × T(°C) The REF50xx junction temperature must not exceed
the absolute maximum rating of +150°C.
This pin indicates general chip temperature, accurate
to approximately ±15°C. Although it is not generally
suitable for accurate temperature measurements, it NOISE PERFORMANCE
can be used to indicate temperature changes or for Typical 0.1-Hz to 10-Hz voltage noise for each
temperature compensation of analog circuitry. A member of the REF50xx family is specified in the
temperature change of 30°C corresponds to an Electrical Characteristics: Per Device table. The noise
approximate 79 mV change in voltage at the TEMP voltage increases with output voltage and operating
pin. temperature. Additional filtering can be used to
improve output noise levels, although care should be
taken to ensure the output impedance does not
degrade performance.
Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 11
Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP
ADS8326
REF5040
REF
VOUT
GND
+IN
-IN
VIN
+5V
OPA365
Input
Signal
0Vto4V
+5V +5V
VDD
GND
CBYPASS
1 Fm
R1
50W
C1
1.2nF
C2
22 Fm
-2V
+2V
+5V
NOTE: Bypass capacitors not shown.
R1
10kWR2
10kW
-5V
OPA735
+5V
DNC
TEMP VOUT
VIN
GND
DNC
NC
TRIM/NR
REF5020
1 Fm
REF5020-EP, REF5025-EP
REF5040-EP, REF5050-EP
SBOS471A –APRIL 2010–REVISED JUNE 2010
www.ti.com
APPLICATION CIRCUITS
DATA ACQUISITION
NEGATIVE REFERENCE VOLTAGE Data acquisition systems often require stable voltage
For applications requiring a negative and positive references to maintain accuracy. The REF50xx family
reference voltage, the REF50xx and OPA735 can be features low noise, very low drift, and high initial
used to provide a dual-supply reference from a 5-V accuracy for high-performance data converters.
supply. Figure 27 shows the REF5020 used to Figure 28 shows the REF5040 in a basic data
provide a 2.5-V supply reference voltage. The low acquisition system.
drift performance of the REF50xx complements the
low offset voltage and zero drift of the OPA735 to
provide an accurate solution for split-supply
applications. Care must be taken to match the
temperature coefficients of R1and R2.
Figure 28. Basic Data Acquisition System
Figure 27. The REF5020 and OPA735 Create
Positive and Negative Reference Voltages
12 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP
PACKAGE OPTION ADDENDUM
www.ti.com 13-Oct-2011
Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
REF5020MDREP ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
REF5025MDTEP ACTIVE SOIC D 8 250 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
REF5040MDREP ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
REF5050MDREP ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
V62/10613-01XE ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
V62/10613-02XE ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
V62/10613-03XE ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
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PACKAGE OPTION ADDENDUM
www.ti.com 13-Oct-2011
Addendum-Page 2
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
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In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF REF5020-EP, REF5025-EP, REF5040-EP, REF5050-EP :
•Catalog: REF5020, REF5025, REF5040, REF5050
NOTE: Qualified Version Definitions:
•Catalog - TI's standard catalog product
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
REF5020MDREP SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1
REF5025MDTEP SOIC D 8 250 180.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1
REF5040MDREP SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1
REF5050MDREP SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1
PACKAGE MATERIALS INFORMATION
www.ti.com 14-Jul-2012
Pack Materials-Page 1
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
REF5020MDREP SOIC D 8 2500 367.0 367.0 35.0
REF5025MDTEP SOIC D 8 250 210.0 185.0 35.0
REF5040MDREP SOIC D 8 2500 367.0 367.0 35.0
REF5050MDREP SOIC D 8 2500 367.0 367.0 35.0
PACKAGE MATERIALS INFORMATION
www.ti.com 14-Jul-2012
Pack Materials-Page 2
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