ADR370BRT-R2

ADR370BRT-R2 Datasheet

The ADR3701 is a low cost, 3-terminal series band gap voltage reference featuring high accuracy, high stability, and low power consumption packaged in a tiny 3-lead SOT-23 package. Precise matching and thermal tracking of on-chip components, as well as patented temperature drift curvature correction design techniques, have been employed to ensure that the ADR370 provides an accurate V output.

Part	Datasheet
ADR370BRT-R2	ADR370BRT-R2 (pdf)

Related Parts	Information
ADR370ART-R2	ADR370ART-R2
ADR370ARTZ-REEL7	ADR370ARTZ-REEL7
ADR370BRTZ-REEL7	ADR370BRTZ-REEL7

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Initial accuracy ±4 mV maximum Initial accuracy error Low TCVO ±50 ppm/°C maximum from −40°C to +125°C 30 ppm/°C maximum from +25°C to +70°C Load regulation 400 uV/mA, 100 ppm/mA Line regulation 25 uV/V, 20 ppm/V Wide operating range VIN = V to 15 V Low power 72 uA maximum High output sink/source current ±5 mA minimum Wide temperature range −40°C to +125°C Tiny 3-lead SOT-23 package with standard pin configuration Battery-powered instrumentation Portable medical instruments Data acquisition systems Industrial process control systems Automotive The ADR3701 is a low cost, 3-terminal series band gap voltage reference featuring high accuracy, high stability, and low power consumption packaged in a tiny 3-lead SOT-23 package. Precise matching and thermal tracking of on-chip components, as well as patented temperature drift curvature correction design techniques, have been employed to ensure that the ADR370 provides an accurate V output. Precision Low Power V SOT-23 Voltage Reference ADR370 PIN CONFIGURATION VIN 1 VOUT 2 ADR370 3 GND Figure 3-Lead SOT-23 03432-001 Table ADR370 Products Products ADR370BRT-REEL7 ADR370ART-REEL7 Output Voltage V Initial Accuracy ± Temperature Coefficient ppm/°C 50 100 This micropowered, low dropout voltage device sources or sinks up to 5 mA of load current while providing a stable V output. The compact footprint, high accuracy, and operating range of V to 15 V make the ADR370 ideal for use in 3 V and 5 V systems where there can be wide variations in supply voltage and a need to minimize power dissipation. The ADR370 is offered in A and B grades all devices are specified over the extended industrial range of −40°C to +125°C. 1 Protected by U.S. Patent No. 5,969,657 other patents pending. Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: Fax Analog Devices, Inc. All rights reserved. ADR370 TABLE OF CONTENTS Electrical Characteristics 3 Absolute Maximum 4 Thermal Resistance 4 ESD 4 Typical Performance Characteristics 5 Terminology 7 Theory of Operation Applying the Applications Information Low Cost Negative Reference Precision Negative Low Cost Current Precision Current Source with Adjustable Output 12-Bit Precision Programmable Current Source 10 Precision Boosted Output Regulator 10 Outline Dimensions 11 Ordering Guide 11 ADR370 SPECIFICATIONS ELECTRICAL CHARACTERISTICS TA = TMIN to TMAX, VIN = 5 V, unless otherwise noted. Table Parameter OUTPUT VOLTAGE 25°C INITIAL ACCURACY ERROR A Grade Symbol VO VOERR Conditions B Grade OUTPUT VOLTAGE TEMPERATURE DRIFT1 A Grade B Grade SUPPLY HEADROOM LOAD REGULATION LINE REGULATION RIPPLE REJECTION QUIESCENT CURRENT SHORT-CIRCUIT CURRENT TO GROUND NOISE VOLTAGE 25°C TURN-ON SETTLING TIME LONG-TERM STABILITY OUTPUT VOLTAGE HYSTERESIS TEMPERATURE RANGE 1 Guaranteed by characterization. TCVO VIN − VOUT TA = −40°C to +125°C TA = −40°C to +125°C TA = 25°C to 70°C 0 mA < IOUT < 5 mA 25°C −3 mA < IOUT < 0 mA 25°C mA < IOUT < mA VOUT + 200 mV < VIN < 15 V IOUT = 0 mA VIN = 5 V ± 100 mV f = 120 Hz CL = uF Hz to 10 Hz 10 Hz to 10 kHz 1000 hours 25°C Min −10 −4 −40 Typ Max Unit V 100 50 30 ppm/°C ppm/°C ppm/°C mV/mA mV/mA mV/mA ppm/V uV p-p uV rms ppm/1000 hrs +125 °C ADR370 ABSOLUTE MAXIMUM RATINGS Ratings at 25°C, unless otherwise noted. Table Parameter Supply Voltage Storage Temperature Range Operating Temperature Range Lead Temperature Soldering, 60 sec Infrared, 15 sec Rating 18 V −65°C to +125°C −40°C to +125°C 215°C 220°C Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. THERMAL RESISTANCE is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages. ORDERING GUIDE Model ADR370ART-R2 ADR370ART-REEL7 ADR370ARTZ-REEL71 ADR370BRT-R2 ADR370BRT-REEL7 ADR370BRTZ-R21 ADR370BRTZ-REEL71 Output Voltage V Initial Accuracy ± Temperature Coefficient ppm/°C 100 50 Temperature Range −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C Package Description 3-Lead SOT-23-3-Lead SOT-23-3-Lead SOT-23-3-Lead SOT-23-3-Lead SOT-23-3-Lead SOT-23-3-Lead SOT-23-3 Package Option RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 Ordering Quantity 250 3,000 3,000 250 3,000 250 3,000 Branding RPA L26 RPB L27 1 Z = RoHS Compliant Part. ADR370 NOTES Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D03432-0-12/07 C

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Initial accuracy ±4 mV maximum Initial accuracy error Low TCVO
±50 ppm/°C maximum from −40°C to +125°C 30 ppm/°C maximum from +25°C to +70°C Load regulation 400 uV/mA, 100 ppm/mA Line regulation 25 uV/V, 20 ppm/V Wide operating range VIN = V to 15 V Low power 72 uA maximum High output sink/source current ±5 mA minimum Wide temperature range −40°C to +125°C Tiny 3-lead SOT-23 package with standard pin configuration

Battery-powered instrumentation Portable medical instruments Data acquisition systems Industrial process control systems Automotive

The ADR3701 is a low cost, 3-terminal series band gap voltage reference featuring high accuracy, high stability, and low power consumption packaged in a tiny 3-lead SOT-23 package. Precise matching and thermal tracking of on-chip components, as well as patented temperature drift curvature correction design techniques, have been employed to ensure that the ADR370 provides an accurate V output.

Precision Low Power V SOT-23 Voltage Reference ADR370

PIN CONFIGURATION

VIN 1 VOUT 2

ADR370
3 GND

Figure 3-Lead SOT-23
03432-001

Table ADR370 Products

Products ADR370BRT-REEL7 ADR370ART-REEL7

Output Voltage V

Initial Accuracy ±

Temperature Coefficient ppm/°C
50 100

This micropowered, low dropout voltage device sources or sinks up to 5 mA of load current while providing a stable V output. The compact footprint, high accuracy, and operating range of V to 15 V make the ADR370 ideal for use in 3 V and 5 V systems where there can be wide variations in supply voltage and a need to minimize power dissipation.

The ADR370 is offered in A and B grades all devices are specified over the extended industrial range of −40°C to +125°C.
1 Protected by U.S. Patent No. 5,969,657 other patents pending.

Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel:

Fax Analog Devices, Inc. All rights reserved.

ADR370

TABLE OF CONTENTS

Electrical Characteristics 3 Absolute Maximum 4

Thermal Resistance 4 ESD 4 Typical Performance Characteristics 5 Terminology 7
Theory of Operation Applying the

Applications Information Low Cost Negative Reference Precision Negative Low Cost Current Precision Current Source with Adjustable Output 12-Bit Precision Programmable Current Source 10 Precision Boosted Output Regulator 10
Outline Dimensions 11 Ordering Guide 11

ADR370

SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

TA = TMIN to TMAX, VIN = 5 V, unless otherwise noted.

Table Parameter OUTPUT VOLTAGE 25°C INITIAL ACCURACY ERROR

A Grade

Symbol VO VOERR

Conditions

B Grade

OUTPUT VOLTAGE TEMPERATURE DRIFT1 A Grade B Grade

SUPPLY HEADROOM LOAD REGULATION

LINE REGULATION

RIPPLE REJECTION QUIESCENT CURRENT SHORT-CIRCUIT CURRENT TO GROUND NOISE VOLTAGE 25°C

TURN-ON SETTLING TIME LONG-TERM STABILITY OUTPUT VOLTAGE HYSTERESIS TEMPERATURE RANGE
1 Guaranteed by characterization.

TCVO VIN − VOUT

TA = −40°C to +125°C TA = −40°C to +125°C TA = 25°C to 70°C
0 mA < IOUT < 5 mA 25°C −3 mA < IOUT < 0 mA 25°C mA < IOUT < mA VOUT + 200 mV < VIN < 15 V IOUT = 0 mA VIN = 5 V ± 100 mV f = 120 Hz

CL = uF

Hz to 10 Hz 10 Hz to 10 kHz
1000 hours 25°C

Min −10 −4
−40

Typ Max Unit V
100 50 30
ppm/°C ppm/°C ppm/°C mV/mA mV/mA mV/mA ppm/V
uV p-p
uV rms
ppm/1000 hrs
+125 °C

ADR370

ABSOLUTE MAXIMUM RATINGS

Ratings at 25°C, unless otherwise noted.

Table Parameter Supply Voltage Storage Temperature Range Operating Temperature Range Lead Temperature

Soldering, 60 sec Infrared, 15 sec

Rating 18 V −65°C to +125°C −40°C to +125°C
215°C 220°C

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

THERMAL RESISTANCE
is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages.
ORDERING GUIDE

Model ADR370ART-R2 ADR370ART-REEL7 ADR370ARTZ-REEL71 ADR370BRT-R2 ADR370BRT-REEL7 ADR370BRTZ-R21 ADR370BRTZ-REEL71

Output Voltage V

Initial Accuracy ±

Temperature Coefficient ppm/°C 100 50

Temperature Range −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C

Package Description 3-Lead SOT-23-3-Lead SOT-23-3-Lead SOT-23-3-Lead SOT-23-3-Lead SOT-23-3-Lead SOT-23-3-Lead SOT-23-3

Package Option RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3
Ordering Quantity 250 3,000 3,000 250 3,000 250 3,000

Branding RPA L26 RPB L27
1 Z = RoHS Compliant Part.

ADR370 NOTES

Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.

D03432-0-12/07 C

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ADR370BRT-R2 Datasheet file may be downloaded here without warranties.

Datasheet ID: ADR370BRT-R2 517865