Texas Instruments REF3112, REF3120, REF3125, REF3130, REF3133 Schematic [ru]

SBVS046C – DECEMBER 2003 – REVISED FEBRUARY 2006

15ppm/°C Max, 100µA, SOT23-3
SERIES VOLTAGE REFERENCE

REF3112
REF3120
REF3125
REF3130
REF3133
REF3140

FEATURES

●

Micro

SIZE PACKAGE: SOT23-3

● LOW DROPOUT: 5mV

● HIGH OUTPUT CURRENT: ±10mA

● HIGH ACCURACY: 0.2% max

● LOW IQ: 115µA max

●

EXCELLENT SPECIFIED DRIFT PERFORMANCE:

15ppm/°C (max) from 0°C to +70°C
20ppm/°C (max) from –40°C to +125°C

APPLICATIONS

● PORTABLE, BATTERY-POWERED EQUIPMENT

● DATA ACQUISITION SYSTEMS

● MEDICAL EQUIPMENT

● HAND-HELD TEST EQUIPMENT

REF3112

1IN

REF3120

2OUT

REF3125
REF3130
REF3133
REF3140

3 GND

DESCRIPTION

The REF31xx is a family of precision, low power, low dropout,
series voltage references available in the tiny SOT23-3 pack­age.

The REF31xx’s small size and low power consumption
(100µA typ) make it ideal for portable and battery-powered
applications. The REF31xx does not require a load capacitor,
but is stable with any capacitive load and can sink/source up
to 10mA of output current.

Unloaded, the REF31xx can be operated on supplies down
to 5mV above the output voltage. All models are specified for
the wide temperature range of –40°C to +125°C.

PRODUCT VOLTAGE (V)

REF3112 1.25
REF3120 2.048
REF3125 2.5
REF3130 3.0
REF3133 3.3
REF3140 4.096

SOT23-3

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.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.

Copyright © 2003-2006, Texas Instruments Incorporated

www.ti.com

ABSOLUTE MAXIMUM RATINGS

Supply Voltage, V+ to V–................................................................... 7.0V

Output Short-Circuit ................................................................. Continuous

Operating Temperature .................................................. –55°C to +135°C

Storage Temperature ..................................................... –65°C to +150°C

Junction Temperature .................................................................... +150°C

NOTES: (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.

(1)

ELECTROSTATIC
DISCHARGE SENSITIVITY

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.

PACKAGE/ORDERING INFORMATION

PRODUCT PACKAGE-LEAD DESIGNATOR RANGE MARKING NUMBER MEDIA, QUANTITY

REF3112 SOT23-3 DBZ –40°C to +125°C R31A REF3112AIDBZT Tape and Reel, 250

(1)

SPECIFIED

PACKAGE TEMPERATURE PACKAGE ORDERING TRANSPORT

" """"REF3112AIDBZR Tape and Reel, 3000

REF3120 SOT23-3 DBZ –40°C to +125°C R31B REF3120AIDBZT Tape and Reel, 250

" """"REF3120AIDBZR Tape and Reel, 3000

REF3125 SOT23-3 DBZ –40°C to +125°C R31C REF3125AIDBZT Tape and Reel, 250

" """"REF3125AIDBZR Tape and Reel, 3000

REF3130 SOT23-3 DBZ –40°C to +125°C R31E REF3130AIDBZT Tape and Reel, 250

" """"REF3130AIDBZR Tape and Reel, 3000

REF3133 SOT23-3 DBZ –40°C to +125°C R31F REF3133AIDBZT Tape and Reel, 250

" """"REF3133AIDBZR Tape and Reel, 3000

REF3140 SOT23-3 DBZ –40°C to +125°C R31D REF3140AIDBZT Tape and Reel, 250

" """"REF3140AIDBZR Tape and Reel, 3000

NOTE: (1) (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at
www.ti.com.

ELECTRICAL CHARACTERISTICS

Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.

At TA = +25°C, I

PARAMETER CONDITIONS MIN TYP MAX UNITS

OUTPUT VOLTAGE V

Initial Accuracy –0.2 0.2 %

NOISE

Output Voltage Noise f = 0.1Hz to 10Hz 17 µV
Voltage Noise f = 10Hz to 10kHz 24 µVrms

OUTPUT VOLTAGE V
Initial Accuracy –0.2 0.2 %

NOISE

Output Voltage Noise f = 0.1Hz to 10Hz 27 µV
Voltage Noise f = 10Hz to 10kHz 39 µVrms

OUTPUT VOLTAGE V
Initial Accuracy –0.2 0.2 %

NOISE

Output Voltage Noise f = 0.1Hz to 10Hz 33 µV
Voltage Noise f = 10Hz to 10kHz 48 µVrms

= 0mA, VIN = 5V, unless otherwise noted.

LOAD

OUT

OUT

OUT

REF3112

(1)

REF3120 – 2.048

REF3125 – 2.5V

REF31xx

- 1.25V

1.2475 1.25 1.2525 V

2.0439 2.048 2.0521 V

2.4950 2.50 2.5050 V

PP

PP

PP

2

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REF3112, 3120, 3125, 3130, 3133, 3140

SBVS046C

ELECTRICAL CHARACTERISTICS

Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.

At TA = +25°C, I

PARAMETER CONDITIONS MIN TYP MAX UNITS

OUTPUT VOLTAGE V

Initial Accuracy –0.2 0.2 %

NOISE

Output Voltage Noise f = 0.1Hz to 10Hz 39 µV
Voltage Noise f = 10Hz to 10kHz 57 µVrms

OUTPUT VOLTAGE V
Initial Accuracy –0.2 0.2 %

NOISE

Output Voltage Noise f = 0.1Hz to 10Hz 43 µV
Voltage Noise f = 10Hz to 10kHz 63 µVrms

OUTPUT VOLTAGE V
Initial Accuracy –0.2 0.2 %

NOISE

Output Voltage Noise f = 0.1Hz to 10Hz 53 µV
Voltage Noise f = 10Hz to 10kHz 78 µVrms

OUTPUT VOLTAGE TEMP DRIFT

LONG-TERM STABILITY

LINE REGULATION V
LOAD REGULATION

Sourcing 0mA < I

Sinking –10mA < I

THERMAL HYSTERESIS

First Cycle 100 ppm
Additional Cycles 25 ppm

DROPOUT VOLTAGE
OUTPUT CURRENT I

SHORT-CIRCUIT CURRENT I

Sourcing 50 mA
Sinking 40 mA

TURN-ON SETTLING TIME to 0.1% at V
POWER SUPPLY I

Voltage V

Quiescent Current I

Over Temperature 115 135
TEMPERATURE RANGE

Specified Range –40 +125 °C
Operating Range –55 +135 °C
Storage Range –65 +150 °C
Thermal Resistance
SOT23-3 Surface-Mount

NOTES: (1) Minimum supply voltage for REF3112 is 1.8V.

(2) Box Method used to determine temperature drift.
(3) Typical value of load regulation reflects measurements using force and sense contacts; see the
(4) Thermal hysteresis is explained in more detail in the
(5) For I

= 0mA, VIN = +5V, unless otherwise noted.

LOAD

OUT

OUT

OUT

REF3112, REF3120, REF3125, REF3130, REF3133, REF3140

(2)

dV

/dT

OUT

(3)

(1)

> 0, see the Typical Characteristic curves.

L

dV

/dI

OUT

LOAD

(4)

V

– V

IN

OUT

LOAD

SC

S
Q

θ

JA

REF31xx

REF3130 – 3.0V

2.9940 3.0 3.0060 V

REF3133 – 3.3V

3.2934 3.30 3.3066 V

REF3140 – 4.096V

4.0878 4.096 4.1042 V

0

°C ≤ T

≤ +70°C 5 15 ppm/°C

A

°C ≤ T

≤ +125°C 10 20 ppm/°C

A

0-1000h 70 ppm

(1)

+ 0.05

≤ VIN ≤ 5.5V 20 65 ppm/V

< 10mA, 10 30 µV/mA

= V

= V

LOAD

+ 250mV

REF

LOAD

+ 100mV

REF

(1)

< 0mA, 20 50 µV/mA

(1)

dT

550 mV

–10 10 mA

= +5V with CL = 0 400 µs

IN

= 0

L

V

REF

+ 0.05

(1)

5.5 V

100 115 µA

336 °C/W

Applications Information

section of this data sheet.

Load Regulation

section.

REF

–40

V

V

IN

IN

PP

PP

PP

µA

REF3112, 3120, 3125, 3130, 3133, 3140

SBVS046C

www.ti.com

3

TYPICAL CHARACTERISTICS

At TA = +25°C, VIN = +5V power supply, REF3125 is used for typical characteristics, unless otherwise noted.

TEMPERATURE DRIFT (0°C to +70°C)

18
16
14
12
10

8
6

Percentage of Units

4
2
0

10

2 3 4 5 6 8 9 10111213141516

Drift (ppm/°C)

OUTPUT VOLTAGE vs TEMPERATURE

0.16

0.14

0.12

0.10

0.08

0.06

0.04

Output Drift (%)

0.02
0

−0.02

−0.04

−60 −40 −20 0 4020 60 80 100 120 140

Temperature (°C)

TEMPERATURE DRIFT (–40°C to +125°C)

25

20

15

10

Percentage of Units

5

0

10

2 3 4 5 6 7 8 9 101112131415161718192021

Drift (ppm/°C)

DROPOUT VOLTAGE vs LOAD CURRENT

120

100

80

60

40

Dropout Voltage (mV)

20

0

–15 –10 –5051015

Load Current (mA)

QUIESCENT CURRENT vs TEMPERATURE

120

100

80

60

40

Quiescent Current (µA)

20

0

–60 –40 –20 0 20 40 60 100 12080 140

Temperature (°C)

4

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100

10

1

0.1

Output Resistance (Ω)

0.01
1 10 100 1k 100k10k 1M

OUTPUT IMPEDANCE vs FREQUENCY

Frequency (Hz)

REF3112, 3120, 3125, 3130, 3133, 3140

SBVS046C

TYPICAL CHARACTERISTICS (Cont.)

STEP RESPONSE, CL = 0, 5V STARTUP

100µs/div

V

IN

V

OUT

5V/div1V/div

REF3112 LONG TERM STABILITY

20

0

–20

–40

–60

–80

–100

–120

Drift (ppm)

0 100 200 300 400 500 600 700 800 900 1000

Time (Hrs)

At TA = +25°C, VIN = +5V power supply, REF3125 is used for typical characteristics, unless otherwise noted.

PSRR vs FREQUENCY

90
80
70
60
50
40
30
20
10

Power-Supply Rejection Ratio (dB)

0

1 10 100 1k 10k 100k

Frequency (Hz)

2.505

2.504

2.503

2.502

2.501

2.500

Output Voltage (V)

2.499

2.498

2.497
–15 –10 –50 51015

OUTPUT VOLTAGE vs LOAD CURRENT

+125°C

+25°C

−40°C

Load Current (mA)

OUTPUT vs SUPPLY

2.505

2.504

2.503

2.502

2.501

Output (V)

2.500

2.499

2.498

+125°C

+25°C

−40°C

2.0 2.5 3.0 3.5 4.0 4.5 5.5 6.05.0 6.5
Supply (V)

0.1Hz TO 10Hz NOISE

10µV/div

REF3112, 3120, 3125, 3130, 3133, 3140

SBVS046C

400ms/div

5

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TYPICAL CHARACTERISTICS (Cont.)

At TA = +25°C, VIN = +5V power supply, REF3125 is used for typical characteristics, unless otherwise noted.

V

IN

V

OUT

20mV/div 500mV/div

I

LOAD

V

OUT

LINE TRANSIENT

C

= 0pF

L

20µs/div

LOAD TRANSIENT

C

= 0pF, ±10mA OUTPUT PULSE

L

+10mA

–10mA

+10mA

V

IN

V

OUT

20mV/div 500mV/div

I

LOAD

LINE TRANSIENT

C

= 10µF

L

100µs/div

LOAD TRANSIENT

C

= 1µF, ±10mA OUTPUT PULSE

L

+10mA

–10mA

+10mA

200mV/div

V

IN

V

OUT

100mV/div

40µs/div

LOAD TRANSIENT

C

= 0pF, ±1mA OUTPUT PULSE

L

+1mA

–1mA

40µs/div

+1mA

V

OUT

50mV/div

V

IN

V

OUT

20mV/div

40µs/div

LOAD TRANSIENT

C

= 1µF, ±1mA OUTPUT PULSE

L

+1mA

–1mA

40µs/div

+1mA

6

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REF3112, 3120, 3125, 3130, 3133, 3140

SBVS046C

THEORY OF OPERATION

The REF31xx is a family of series, CMOS, precision bandgap
voltage references. The basic bandgap topology is shown in
Figure 1. Transistors Q
current density of Q
of the two base-emitter voltages, Vbe
temperature coefficient and is forced across resistor R1. This
voltage is gained up and added to the base-emitter voltage
of Q

, which has a negative temperature coefficient. The

2

resulting output voltage is virtually independent of temperature.

and Q2 are biased such that the

1

is greater than that of Q2. The difference

1

– Vbe2, has a positive

1

100µA, and the maximum quiescent current over temperature
is just 135µA. The quiescent current typically changes less
than 2µA over the entire supply range, as shown in Figure 3.

QUIESCENT CURRENT vs POWER SUPPLY

100.5

100.0

99.5

99.0

Quiescent Current (µA)

98.5

V

BANDGAP

R

+

Vbe

Vbe

1

–

Q1IN

1

+

2

–

Q

2

FIGURE 1. Simplified Schematic of Bandgap Reference.

APPLICATION INFORMATION

The REF31xx does not require a load capacitor and is stable
with any capacitive load. Figure 2 shows typical connections
required for operation of the REF31xx. A supply bypass
capacitor of 0.47µF is recommended.

V

IN

V

OUT

0.47µF

1

2

REF31xx

3

98.0

1.5

2.5 3.5 4.5 5.5
Power Supply (V)

FIGURE 3. Supply Current vs Supply Voltage.

Supply voltages below the specified levels can cause the
REF31xx to momentarily draw currents greater than the
typical quiescent current. This can be prevented by using a
power supply with a fast rising edge and low output impedance.

THERMAL HYSTERESIS

Thermal hysteresis for the REF31xx is defined as the change
in output voltage after operating the device at 25°C, cycling
the device through the specified temperature range, and
returning to 25°C. It can be expressed as:

Where: V



V

HYST

HYST =

V

PRE

absV V

=




Thermal hysteresis

= Output voltage measured at 25°C pre-

PRE

V

–

NOM

temperature cycling

= Output voltage measured after the device

V

POST

has been cycled through the specified temperature
range of –40°C to +125°C and returned to 25°C.

POST



6

10

ppm

•

(




)

FIGURE 2. Typical Connections for Operating REF31xx.

SUPPLY VOLTAGE

The REF31xx family of references features an extremely low
dropout voltage. With the exception of the REF3112, which
has a minimum supply requirement of 1.8V, these references
can be operated with a supply of only 5mV above the output
voltage in an unloaded condition. For loaded conditions, a
typical dropout voltage versus load is shown in the typical
curves.

The REF31xx features a low quiescent current, which is
extremely stable over changes in both temperature and
supply. The typical room temperature quiescent current is

REF3112, 3120, 3125, 3130, 3133, 3140

SBVS046C

www.ti.com

TEMPERATURE DRIFT

The REF31xx is designed to exhibit minimal drift error, defined
as the change in output voltage over varying temperature. The
drift is calculated using the “box” method which is described by
the following equation:



VV

OUTMAX OUTMIN



V TemperatureRange



OUT

–

•

The REF31xx features a typical drift coefficient of 5ppm from
0°C to 70°C—the primary temperature range for many
applications. For the industrial temperature range of –40°C to
125°C, the REF31xx family drift increases to a typical value of
10ppm.



6

ppm

•

10





7

NOISE PERFORMANCE

Typical 0.1Hz to 10Hz voltage noise can be seen in the
Typical Characteristic Curve,
noise voltage of the REF31xx increases with output voltage
and operating temperature. Additional filtering may be used
to improve output noise levels, although care should be
taken to ensure the output impedance does not degrade the
AC performance.

LONG-TERM STABILITY

Long-term stability refers to the change of the output voltage
of a reference over a period of months or years. This effect
lessens as time progresses, as is shown by the long-term
stability curves. The typical drift value for the REF31xx is
70ppm from 0-1000 hours. This parameter is characterized
by measuring 30 units at regular intervals for a period of 1000
hours.

LOAD REGULATION

Load regulation is defined as the change in output voltage
due to changes in load current. The load regulation of the
REF31xx is measured using force and sense contacts as
pictured in Figure 4. The force and sense lines reduce the
impact of contact and trace resistance, resulting in accurate
measurement of the load regulation contributed solely by the
REF31xx. For applications requiring improved load regula­tion, force and sense lines should be used.

0.1 to 10Hz Voltage Noise

. The

APPLICATION CIRCUITS

Negative Reference Voltage

For applications requiring a negative and positive reference
voltage, the REF31xx and OPA703 can be used to provide
a dual supply reference from a ±5V supply. Figure 5 shows
the REF3125 used to provide a ±2.5V supply reference
voltage. The low drift performance of the REF31xx
complement the low offset voltage and low drift of the
OPA703 to provide an accurate solution for split-supply
applications.

+5V

REF3125

10kΩ

10kΩ

+5V

OPA703

–5V

+2.5V

–2.5V

Output Pin

Contact and

Force Line

I

L

Trace Resistance

Sense Line

+

V

OUT

–

Meter

Load

FIGURE 4. Accurate Load Regulation of REF31xx.

FIGURE 5. REF3125 Combined with OPA703 to Create

Positive and Negative Reference Voltages.

DATA ACQUISITION

Data acquisition systems often require stable voltage
references to maintain accuracy. The REF31xx family features
stability and a wide range of voltages suitable for most micro­controllers and data converters. Figure 6, Figure 7, and
Figure 8 show basic data acquisition systems.

8

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REF3112, 3120, 3125, 3130, 3133, 3140

SBVS046C

0.1µF

V

REF

ADS7822

3.3V

REF3133

V+

5Ω

+

1µF to

GND

10µF

V

S

V

CC

+

1µF to 10µF

V

IN

+In

–In

GND

FIGURE 6. Basic Data Acquisition System 1.

2.5V
V

IN

= 1.25V

V

REF3112

GND

OUT

0.1µF

CS

D

OUT

DCLOCK

0V to 1.25V

V

REF

+In

–In

GND

ADS8324

DCLOCK

Microcontroller

V

CC

CS

D

OUT

+

1µF to 10µF

2.5V Supply

5Ω

+

1µF to 10µF

V

S

Microcontroller

FIGURE 7. Basic Data Acquisition System 2.

5V

REF3140

V

4.096V

OUT =

10Ω1kΩ

+5V

1kΩ

V

IN

10Ω

THS4031

22µF

V

REF

ADS8381

6800pF

0.22µF

500Ω

–5V

FIGURE 8. REF3140 Provides an Accurate Reference for Driving the ADS8381.

REF3112, 3120, 3125, 3130, 3133, 3140

SBVS046C

www.ti.com

0.1µF 1µF

9

PACKAGE OPTION ADDENDUM

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PACKAGING INFORMATION

Orderable Device Status

REF3112AIDBZR ACTIVE SOT-23 DBZ 3 3000 Green (RoHS &

REF3112AIDBZRG4 ACTIVE SOT-23 DBZ 3 3000 Green (RoHS &

REF3112AIDBZT ACTIVE SOT-23 DBZ 3 250 Green (RoHS &

REF3112AIDBZTG4 ACTIVE SOT-23 DBZ 3 250 Green (RoHS &

REF3120AIDBZR ACTIVE SOT-23 DBZ 3 3000 Green (RoHS &

REF3120AIDBZRG4 ACTIVE SOT-23 DBZ 3 3000 Green (RoHS &

REF3120AIDBZT ACTIVE SOT-23 DBZ 3 250 Green (RoHS &

REF3120AIDBZTG4 ACTIVE SOT-23 DBZ 3 250 Green (RoHS &

REF3125AIDBZR ACTIVE SOT-23 DBZ 3 3000 Green (RoHS &

REF3125AIDBZRG4 ACTIVE SOT-23 DBZ 3 3000 Green (RoHS &

REF3125AIDBZT ACTIVE SOT-23 DBZ 3 250 Green (RoHS &

REF3125AIDBZTG4 ACTIVE SOT-23 DBZ 3 250 Green (RoHS &

REF3130AIDBZR ACTIVE SOT-23 DBZ 3 3000 Green (RoHS &

REF3130AIDBZRG4 ACTIVE SOT-23 DBZ 3 3000 Green (RoHS &

REF3130AIDBZT ACTIVE SOT-23 DBZ 3 250 Green (RoHS &

REF3130AIDBZTG4 ACTIVE SOT-23 DBZ 3 250 Green (RoHS &

REF3133AIDBZR ACTIVE SOT-23 DBZ 3 3000 Green (RoHS &

REF3133AIDBZRG4 ACTIVE SOT-23 DBZ 3 3000 Green (RoHS &

REF3133AIDBZT ACTIVE SOT-23 DBZ 3 250 Green (RoHS &

REF3133AIDBZTG4 ACTIVE SOT-23 DBZ 3 250 Green (RoHS &

REF3140AIDBZR ACTIVE SOT-23 DBZ 3 3000 Green (RoHS &

REF3140AIDBZRG4 ACTIVE SOT-23 DBZ 3 3000 Green (RoHS &

REF3140AIDBZT ACTIVE SOT-23 DBZ 3 250 Green (RoHS &

REF3140AIDBZTG4 ACTIVE SOT-23 DBZ 3 250 Green (RoHS &

(1)

The marketing status values are defined as follows:

(1)

Package

Type

Package
Drawing

Pins Package

Qty

Eco Plan

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

no Sb/Br)

(2)

Lead/Ball Finish MSL Peak Temp

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

11-Dec-2006

(3)

Addendum-Page 1

PACKAGE OPTION ADDENDUM

www.ti.com

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.

Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
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incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.

11-Dec-2006

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.

Addendum-Page 2

PACKAGE MATERIALS INFORMATION

www.ti.com

TAPE AND REEL INFORMATION

12-Jun-2008

*All dimensions are nominal

Device Package

REF3112AIDBZR SOT-23 DBZ 3 3000 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3
REF3112AIDBZT SOT-23 DBZ 3 250 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3
REF3120AIDBZR SOT-23 DBZ 3 3000 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3
REF3120AIDBZT SOT-23 DBZ 3 250 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3
REF3125AIDBZR SOT-23 DBZ 3 3000 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3
REF3125AIDBZT SOT-23 DBZ 3 250 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3
REF3130AIDBZR SOT-23 DBZ 3 3000 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3
REF3130AIDBZT SOT-23 DBZ 3 250 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3
REF3133AIDBZR SOT-23 DBZ 3 3000 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3
REF3133AIDBZT SOT-23 DBZ 3 250 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3
REF3140AIDBZR SOT-23 DBZ 3 3000 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3
REF3140AIDBZT SOT-23 DBZ 3 250 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3

Type

Package
Drawing

Pins SPQ Reel

Diameter

(mm)

Reel

Width

W1 (mm)

A0 (mm) B0 (mm) K0 (mm) P1

(mm)W(mm)

Pin1

Quadrant

Pack Materials-Page 1

PACKAGE MATERIALS INFORMATION

www.ti.com

12-Jun-2008

*All dimensions are nominal

Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)

REF3112AIDBZR SOT-23 DBZ 3 3000 195.0 200.0 45.0
REF3112AIDBZT SOT-23 DBZ 3 250 195.0 200.0 45.0
REF3120AIDBZR SOT-23 DBZ 3 3000 195.0 200.0 45.0
REF3120AIDBZT SOT-23 DBZ 3 250 195.0 200.0 45.0
REF3125AIDBZR SOT-23 DBZ 3 3000 195.0 200.0 45.0
REF3125AIDBZT SOT-23 DBZ 3 250 195.0 200.0 45.0
REF3130AIDBZR SOT-23 DBZ 3 3000 195.0 200.0 45.0
REF3130AIDBZT SOT-23 DBZ 3 250 195.0 200.0 45.0
REF3133AIDBZR SOT-23 DBZ 3 3000 195.0 200.0 45.0
REF3133AIDBZT SOT-23 DBZ 3 250 195.0 200.0 45.0
REF3140AIDBZR SOT-23 DBZ 3 3000 195.0 200.0 45.0
REF3140AIDBZT SOT-23 DBZ 3 250 195.0 200.0 45.0

Pack Materials-Page 2

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