ADR127AUJZ-REEL7 Analog Devices Inc, ADR127AUJZ-REEL7 Datasheet

IC,VOLT REFERENCE,FIXED,1.25V,BIPOLAR,TSOP,6PIN,PLASTIC

ADR127AUJZ-REEL7

Manufacturer Part Number

ADR127AUJZ-REEL7

Description

IC,VOLT REFERENCE,FIXED,1.25V,BIPOLAR,TSOP,6PIN,PLASTIC

Manufacturer

Analog Devices Inc

Datasheet

1.ADR127AUJZ-REEL7.pdf (20 pages)

Specifications of ADR127AUJZ-REEL7

Design Resources

Generating a Negative Precision Voltage Reference Without Precision Resistors (CN0005) Single Supply Low Noise LED Current Source Driver Using a Current Output DAC in the Reverse Mode (CN0139)

Reference Type

Series

Voltage - Output

1.25V

Tolerance

±0.24%

Temperature Coefficient

25ppm/°C

Voltage - Input

2.7 ~ 18 V

Number Of Channels

Current - Quiescent

95µA

Current - Output

5mA

Operating Temperature

-40°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

TSOT-23-6, TSOT-6

Fixed / Adjust / Prog

Precision

Output Voltage (max)

1.25V

Reference Voltage Accuracy (max)

0.24

Line Regulation

90ppm/V

Load Regulation

400ppm/mA

Input Voltage (max)

20V

Operating Temp Range

-40C to 125C

Operating Temperature Classification

Automotive

Mounting

Surface Mount

Pin Count

Package Type

TSOT

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current - Cathode

Lead Free Status / Rohs Status

Compliant

Other names

ADR127AUJZ-REEL7TR

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FEATURES

Initial accuracy

Maximum temperature coefficient

Low dropout: 300 mV for ADR121/ADR125

High output current: +5 mA/−2 mA

Low typical operating current: 85 μA

Input range: 2.7 V to 18 V for ADR127

Temperature range: −40°C to +125°C

Tiny TSOT (UJ-6) package

APPLICATIONS

Battery-powered instrumentation

Portable medical equipment

Data acquisition systems

Automotive

GENERAL DESCRIPTION

The ADR121/ADR125/ADR127 are a family of micropower,

high precision, series mode, band gap references with sink and

source capability. The parts feature high accuracy and low

power consumption in a tiny package. The ADR12x design

includes a patented temperature-drift curvature correction

technique that minimizes the nonlinearities in the output

voltage vs. temperature characteristics.

Rev. B

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.

A grade: ±0.24%

B grade: ±0.12%

A grade: 25 ppm/°C

B grade: 9 ppm/°C

Precision, Micropower LDO Voltage

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

Tel: 781.329.4700

Fax: 781.461.3113

The ADR12x is a low dropout voltage reference, requiring only

300 mV for the ADR121/ADR125 and 1.45 V for the ADR127

above the nominal output voltage on the input to provide a

stable output voltage. This low dropout performance, coupled

with the low 85 μA operating current, makes the ADR12x ideal

for battery-powered applications.

Available in an extended industrial temperature range of −40°C

to +125°C, the ADR121/ADR125/ADR127 are housed in the

tiny TSOT (UJ-6) package.

ADR121/ADR125/ADR127

GND

PIN CONFIGURATION

MUST BE LEFT FLOATING

References in TSOT

NC = NO CONNECT

(Not to Scale)

ADR12x

TOP VIEW

Figure 1.

OUT

www.analog.com

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ADR127AUJZ-REEL7 Summary of contents

Page 1

FEATURES Initial accuracy A grade: ±0.24% B grade: ±0.12% Maximum temperature coefficient A grade: 25 ppm/°C B grade: 9 ppm/°C Low dropout: 300 mV for ADR121/ADR125 High output current: +5 mA/−2 mA Low typical operating current: 85 μA Input range: ...

Page 2

ADR121/ADR125/ADR127 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Pin Configuration ............................................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 ADR121 Electrical Characteristics ............................................. 3 ADR125 Electrical Characteristics ............................................. 4 ADR127 Electrical Characteristics ............................................. 5 ...

Page 3

SPECIFICATIONS ADR121 ELECTRICAL CHARACTERISTICS T = 25° 2 mA, unless otherwise noted OUT Table 1. Parameter OUTPUT VOLTAGE B Grade A Grade INITIAL ACCURACY ERROR B Grade A Grade ...

Page 4

ADR121/ADR125/ADR127 ADR125 ELECTRICAL CHARACTERISTICS T = 25° 5 mA, unless otherwise noted OUT Table 2. Parameter OUTPUT VOLTAGE B Grade A Grade INITIAL ACCURACY ERROR B Grade A Grade ...

Page 5

ADR127 ELECTRICAL CHARACTERISTICS T = 25° 2 mA, unless otherwise noted OUT Table 3. Parameter OUTPUT VOLTAGE B Grade A Grade INITIAL ACCURACY ERROR B Grade A Grade TEMPERATURE ...

Page 6

ADR121/ADR125/ADR127 ABSOLUTE MAXIMUM RATINGS Table 4. Parameter V to GND IN Internal Power Dissipation TSOT (UJ-6) Storage Temperature Range Operating Temperature Range Lead Temperature, Soldering Vapor Phase (60 sec) Infrared (15 sec) Stresses above those listed under Absolute Maximum Ratings ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS 1.256 1.254 1.252 1.250 1.248 1.246 1.244 –40 –25 – TEMPERATURE (°C) Figure 2. ADR127 V vs. Temperature OUT 2.510 2.508 2.506 2.504 2.502 2.500 2.498 2.496 2.494 2.492 2.490 –40 –25 –10 ...

Page 8

ADR121/ADR125/ADR127 3.0 2.8 –40°C 2.6 +25°C 2.4 +125°C 2.2 2.0 –2 – LOAD CURRENT (mA) Figure 8. ADR127 Minimum Input Voltage vs. Load Current 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8 2.7 2.6 2.5 –2 –1 ...

Page 9

LOAD CURRENT (mA) Figure 14. ADR127 Supply Current vs. Load Current 6 — +125°C — +25°C — –40° ...

Page 10

ADR121/ADR125/ADR127 200 150 100 2mA SINKING –50 –100 5mA SOURCING –150 –200 –40 –25 – TEMPERATURE (°C) Figure 20. ADR127 Load Regulation vs. Temperature 100 80 ...

Page 11

0.1µF IN OUT 1 50µV/DIV TIME (1s/DIV) Figure 26. ADR127 kHz Noise 0.1µF IN OUT 1 100µV/DIV TIME (1s/DIV) Figure 27. ADR121 kHz Noise ...

Page 12

ADR121/ADR125/ADR127 V 1V/DIV 0.1µF IN OUT 1 V OUT 1V/DIV TIME (100µs/DIV) 2 Figure 32. ADR121 Turn-On Response V 1V/DIV 0.1µF IN OUT 1 V OUT TIME (40µs/DIV) 1V/DIV 2 ...

Page 13

0.1µF IN OUT V 1V/DIV IN LINE INTERRUPTION OUT TIME (200µs/DIV) 500mV/DIV Figure 38. ADR127 Line Transient Response 0.1µF IN OUT V 1V/DIV IN 1 LINE INTERRUPTION TIME (400µs/DIV) ...

Page 14

ADR121/ADR125/ADR127 V 1V/DIV 0.1µF IN OUT 500Ω LOAD 5mA SOURCING OUT 100mV/DIV TIME (40µs/DIV) Figure 44. ADR121 Load Transient Response (Sourcing) V 2V/DIV 0.1µF IN OUT 2.5kΩ ...

Page 15

TERMINOLOGY Temperature Coefficient The change in output voltage with respect to operating temperature change normalized by the output voltage at 25°C. This parameter is expressed in ppm/°C and can be determined as follows − ...

Page 16

ADR121/ADR125/ADR127 THEORY OF OPERATION The ADR12x band gap references are the high performance solution for low supply voltage and low power applications. The uniqueness of these products lies in their architecture. POWER DISSIPATION CONSIDERATIONS The ADR12x family is capable of ...

Page 17

APPLICATIONS INFORMATION BASIC VOLTAGE REFERENCE CONNECTION The circuit in Figure 49 illustrates the basic configuration for the ADR12x family voltage reference ADR12x GND INPUT OUT + 0.1µF Figure ...

Page 18

... OUT 1 ADR121AUJZ-REEL7 2.5 2.5 1 ADR121AUJZ-R2 2.5 2.5 1 ADR121BUJZ-REEL7 2.5 2.5 1 ADR125AUJZ-REEL7 5.0 5.0 1 ADR125AUJZ-R2 5.0 5.0 ADR125BUJZ-REEL7 1 5.0 5.0 1 ADR127AUJZ-REEL7 1.25 3 ADR127AUJZ- ADR127BUJZ-REEL7 1.25 1 RoHS Compliant Part. 2.90 BSC 2.80 BSC 1.60 BSC PIN 1 0.95 BSC 1.90 * 0.90 BSC 0.87 ...

Page 19

NOTES ADR121/ADR125/ADR127 Rev Page ...

Page 20

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