Datasheet ADR360, ADR361, ADR363, ADR364, ADR365 Datasheet (ANALOG DEVICES)

G

查询ADR364供应商

Low Power, Low Noise Voltage References

FEATURES

Compact TSOT-23-5 packages
Low temperature coefficient

B grade: 9 ppm/°C
A grade: 25 ppm/°C

Initial accuracy

B grade: ±3 mV maximum

A grade: ±6 mV maximum
Ultralow output noise: 6.8 µV p-p (0.1 Hz to 10 Hz)
Low dropout: 300 mV
Low supply current: 190 µA, Maximum
No external capacitor required
Output current: +5 mA/−1 mA
Wide temperature range: −40°C to +125°C

APPLICATIONS

Battery-powered instrumentations
Portable medical instrumentations
Data acquisition systems
Industrial process controls
Automotive

GENERAL DESCRIPTION

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

with Sink/Source Capability

PIN CONFIGURATION

NC

1

ADR36x

TOP VIEW

ND

2

(Not to Scale)

3

V

IN

NC = NO CONNECT

Figure 1. 5-Lead TSOT (UJ Suffix)

Table 1.

Temperature

Model V

OUT

1

(V)

Coefficient (ppm/°C) Accuracy (mV)

ADR360B 2.048 9 ±3
ADR360A 2.048 25 ±6
ADR361B 2.5 9 ±3
ADR361A 2.5 25 ±6
ADR363B 3.0 9 ±3
ADR363A 3.0 25 ±6
ADR364B 4.096 9 ±4
ADR364A 4.096 25 ±8
ADR365B 5.0 9 ±4
ADR365A 5.0 25 ±8
ADR366B 3.3 9 ±4
ADR366A 3.3 25 ±8

1

Contact Analog Devices, Inc. for other voltage options.

TRIM

5

4

V

OUT

05467-001

The ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
are precision 2.048 V, 2.5 V, 3.0 V, 4.096 V, 5.0 V, and 3.3 V band
gap voltage references that feature low power, high precision in
a tiny footprint. Using ADI’s patented temperature drift
curvature correction techniques, the ADR36x references achieve
a low temperature drift of 9 ppm/°C in the TSOT package.

The ADR36x family of micropower, low dropout voltage
references provides a stable output voltage from a minimum
supply of 300 mV above the output. Their advanced design
eliminates the need for external capacitors, which further
reduces board space and system cost. The combination of low
power operation, small size, and ease of use makes the ADR36x
precision voltage references ideally suited for battery-operated
applications.

Rev. 0

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: [phone]
Fax: [phone] © 2005 Analog Devices, Inc. All rights reserved.

www.analog.com

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

TABLE OF CONTENTS

ADR360—Specifications ................................................................. 3

ESD Caution...................................................................................9

ADR361—Specifications ................................................................. 4

ADR363—Specifications ................................................................. 5

ADR364—Specifications ................................................................. 6

ADR365—Specifications ................................................................. 7

ADR366—Specifications ................................................................. 8

Absolute Maximum Ratings............................................................ 9

Thermal Resistance ...................................................................... 9

REVISION HISTORY

4/05—Revision 0: Initial Version

Te r m in o l o g y .................................................................................... 10

Typical Perfor m a n c e Character i s t ics ........................................... 11

Theory of Operation...................................................................... 16

Applications..................................................................................... 17

Basic Voltage Reference Connection ....................................... 17

Outline Dimensions....................................................................... 19

Ordering Guide .......................................................................... 19

Rev. 0 | Page 2 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

ADR360—SPECIFICATIONS

Electrical Characteristics (VIN = 2.35 V to 15 V, TA = 25°C, unless otherwise noted.)

Table 2.

Parameter Symbol Conditions Min Typ Max Unit

OUTPUT VOLTAGE V
V
INITIAL ACCURACY V
V
V
V

O

O

OERR

OERR

OERR

OERR

O

SUPPLY VOLTAGE HEADROOM VIN − V
LINE REGULATION ∆VO/∆V

QUIESCENT CURRENT I
VOLTAGE NOISE e
TURN-ON SETTLING TIME t
LONG-TERM STABILITY

1

OUTPUT VOLTAGE HYSTERESIS ∆V

∆V

IN

N p-p

R

O

O_HYS

RIPPLE REJECTION RATIO RRR fIN = 60 kHz 70 dB

SC

1

The long-term stability specification is noncumulative. The drift subsequent 1,000 hour periods are significantly lower than in the first 1,000 hour period.

A Grade 2.042 2.048 2.054 V
B Grade 2.045 2.048 2.051 V
A Grade 6 mV
A Grade 0.29 %
B Grade 3 mV
B Grade 0.15 %
A Grade, −40°C < TA < +125°C 25 ppm/°C TEMPERATURE COEFFICIENT TCV
B Grade, −40°C < TA < +125°C 9 ppm/°C
300 mV

O

VIN = 2.45 V to 15 V, −40°C < TA < +125°C 0.105 mV/V

IN

I

= 0 mA to 5 mA, −40°C < TA < +125°C, VIN = 3 V 0.37 mV/mA LOAD REGULATION ∆VO/∆I

LOAD

LOAD

I

= −1 mA to 0 mA, −40°C < TA < +125°C, VIN = 3 V 0.82 mV/mA

LOAD

−40°C < TA < +125°C 150 190 µA

0.1 Hz to 10 Hz 6.8 µV p-p
25 µs
1, 000 Hours 50 ppm
100 ppm

VIN = 5 V 25 mA SHORT CIRCUIT TO GND I
VIN = 15 V 30 mA

Rev. 0 | Page 3 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

ADR361—SPECIFICATIONS

Electrical Characteristics (VIN = 2.8 V to 15 V, TA = 25°C, unless otherwise noted.)

Table 3.

Parameter Symbol Conditions Min Typ Max Unit

OUTPUT VOLTAGE V
V
INITIAL ACCURACY V
V
V
V

O

O

OERR

OERR

OERR

OERR

O

SUPPLY VOLTAGE HEADROOM VIN − V
LINE REGULATION ∆VO/∆V

QUIESCENT CURRENT I
VOLTAGE NOISE e
TURN-ON SETTLING TIME t
LONG-TERM STABILITY

1

OUTPUT VOLTAGE HYSTERESIS ∆V

IN

∆V

N p-p

R

O

O_HYS

RIPPLE REJECTION RATIO RRR fIN = 60 kHz 70 dB

SC

1

The long-term stability specification is noncumulative. The drift subsequent 1,000 hour periods are significantly lower than in the first 1,000 hour period.

A Grade 2.494 2.500 2.506 V
B Grade 2.497 2.500 2.503 V
A Grade 6 mV
A Grade 0.24 %
B Grade 3 mV
B Grade 0.12 %
A Grade, −40°C < TA < +125°C 25 ppm/°C TEMPERATURE COEFFICIENT TCV
B Grade, −40°C < TA < +125°C 9 ppm/°C
300 mV

O

VIN = 2.8 V to 15 V, −40°C < TA < +125°C 0.125 mV/V

IN

I

= 0 mA to 5 mA, −40°C < TA < +125°C, VIN = 3.5 V 0.45 mV/mA LOAD REGULATION ∆VO/∆I

LOAD

LOAD

I

= −1 mA to 0 mA, −40°C < TA < +125°C, VIN = 3.5 V 1 mV/mA

LOAD

−40°C < TA < +125°C 150 190 µA

0.1 Hz to 10 Hz 8.25 µV p-p
25 µs
1, 000 Hours 50 ppm
100 ppm

VIN = 5 V 25 mA SHORT CIRCUIT TO GND I
VIN = 15 V 30 mA

Rev. 0 | Page 4 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

ADR363—SPECIFICATIONS

Electrical Characteristics (VIN = 3.3 V to 15 V, TA = 25°C, unless otherwise noted.)

Table 4.

Parameter Symbol Conditions Min Typ Max Unit

OUTPUT VOLTAGE V
V
INITIAL ACCURACY V
V
V
V

O

O

OERR

OERR

OERR

OERR

O

SUPPLY VOLTAGE HEADROOM VIN − V
LINE REGULATION ∆VO/∆V

QUIESCENT CURRENT I
VOLTAGE NOISE e
TURN-ON SETTLING TIME t
LONG-TERM STABILITY

1

OUTPUT VOLTAGE HYSTERESIS ∆V

∆V

IN

N p-p

R

O

O_HYS

RIPPLE REJECTION RATIO RRR fIN = 60 kHz 70 dB

SC

1

The long-term stability specification is noncumulative. The drift subsequent 1,000 hour periods are significantly lower than in the first 1,000 hour period.

A Grade 2.994 3.000 3.006 V
B Grade 2.997 3.000 3.003 V
A Grade 6 mV
A Grade 0.2 %
B Grade 3 mV
B Grade 0.1 %
A Grade, −40°C < TA < +125°C 25 ppm/°C TEMPERATURE COEFFICIENT TCV
B Grade, −40°C < TA < +125°C 9 ppm/°C
300 mV

O

VIN = 3.3 V to 15 V, −40°C < TA < +125°C 0.15 mV/V

IN

I

= 0 mA to 5 mA, −40°C < TA < +125°C, VIN = 4 V 0.54 mV/mA LOAD REGULATION ∆VO/∆I

LOAD

LOAD

I

= −1 mA to 0 mA, −40°C < TA < +125°C, VIN = 4 V 1.2 mV/mA

LOAD

−40°C < TA < +125°C 150 190 µA

0.1 Hz to 10 Hz 8.7 µV p-p
25 µs
1, 000 Hours 50 ppm
100 ppm

VIN = 5 V 25 mA SHORT CIRCUIT TO GND I
VIN = 15 V 30 mA

Rev. 0 | Page 5 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

ADR364—SPECIFICATIONS

Electrical Characteristics (VIN = 4.4 V to 15 V, TA = 25°C, unless otherwise noted.)

Table 5.

Parameter Symbol Conditions Min Typ Max Unit

OUTPUT VOLTAGE V
V
INITIAL ACCURACY V
V
V
V

O

O

OERR

OERR

OERR

OERR

O

SUPPLY VOLTAGE HEADROOM VIN − V
LINE REGULATION ∆VO/∆V

QUIESCENT CURRENT I
VOLTAGE NOISE e
TURN-ON SETTLING TIME t
LONG-TERM STABILITY

1

OUTPUT VOLTAGE HYSTERESIS ∆V

IN

∆V

N p-p

R

O

O_HYS

RIPPLE REJECTION RATIO RRR fIN = 60 kHz 70 dB

SC

1

The long-term stability specification is noncumulative. The drift subsequent 1,000 hour periods are significantly lower than in the first 1,000 hour period.

A Grade 4.088 4.096 4.104 V
B Grade 4.092 4.096 4.100 V
A Grade 8 mV
A Grade 0.2 %
B Grade 4 mV
B Grade 0.1 %
A Grade, −40°C < TA < +125°C 25 ppm/°C TEMPERATURE COEFFICIENT TCV
B Grade, −40°C < TA < +125°C 9 ppm/°C
300 mV

O

VIN = 4.4 V to 15 V, −40°C < TA < +125°C 0.205 mV/V

IN

I

= 0 mA to 5 mA, −40°C < TA < +125°C, VIN = 5 V 0.735 mV/mA LOAD REGULATION ∆VO/∆I

LOAD

LOAD

I

= −1 mA to 0 mA, −40°C < TA < +125°C, VIN = 5 V 1.75 mV/mA

LOAD

−40°C < TA < +125°C 150 190 µA

0.1 Hz to 10 Hz 11 µV p-p
25 µs
1, 000 Hours 50 ppm
100 ppm

VIN = 5 V 25 mA SHORT CIRCUIT TO GND I
VIN = 15 V 30 mA

Rev. 0 | Page 6 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

ADR365—SPECIFICATIONS

Electrical Characteristics (VIN = 5.3 V to 15 V, TA = 25°C, unless otherwise noted.)

Table 6.

Parameter Symbol Conditions Min Typ Max Unit

OUTPUT VOLTAGE V
V
INITIAL ACCURACY V
V
V
V

O

O

OERR

OERR

OERR

OERR

O

SUPPLY VOLTAGE HEADROOM VIN − V
LINE REGULATION ∆VO/∆V

QUIESCENT CURRENT I
VOLTAGE NOISE e
TURN-ON SETTLING TIME t
LONG-TERM STABILITY

1

OUTPUT VOLTAGE HYSTERESIS ∆V

∆V

IN

N p-p

R

O

O_HYS

RIPPLE REJECTION RATIO RRR fIN = 60 kHz 70 dB

SC

1

The long-term stability specification is noncumulative. The drift subsequent 1,000 hour periods are significantly lower than in the first 1,000 hour period.

A Grade 4.992 5.000 5.008 V
B Grade 4.996 5.000 5.004 V
A Grade 8 mV
A Grade 0.16 %
B Grade 4 mV
B Grade 0.08 %
A Grade, −40°C < TA < +125°C 25 ppm/°C TEMPERATURE COEFFICIENT TCV
B Grade, −40°C < TA < +125°C 9 ppm/°C
300 mV

O

VIN = 5.3 V to 15 V, −40°C < TA < +125°C 0.25 mV/V

IN

I

= 0 mA to 5 mA, −40°C < TA < +125°C, VIN = 6V 0.9 mV/mA LOAD REGULATION ∆VO/∆I

LOAD

LOAD

I

= −1 mA to 0 mA, −40°C < TA < +125°C, VIN = 6 V 2 mV/mA

LOAD

−40°C < TA < +125°C 150 190 µA

0.1 Hz to 10 Hz 12.8 µV p-p
20 µs
1, 000 Hours 50 ppm
100 ppm

VIN = 5 V 25 mA SHORT CIRCUIT TO GND I
VIN = 15 V 30 mA

Rev. 0 | Page 7 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

ADR366—SPECIFICATIONS

Electrical Characteristics (VIN = 3.6 V to 15 V, TA = 25°C, unless otherwise noted.)

Table 7.

Parameter Symbol Conditions Min Typ Max Unit

OUTPUT VOLTAGE V
V
INITIAL ACCURACY V
V
V
V

O

O

OERR

OERR

OERR

OERR

O

SUPPLY VOLTAGE HEADROOM VIN − V
LINE REGULATION ∆VO/∆V

QUIESCENT CURRENT I
VOLTAGE NOISE e
TURN-ON SETTLING TIME t
LONG-TERM STABILITY

1

OUTPUT VOLTAGE HYSTERESIS ∆V

IN

R

∆V

N p-p

O

O_HYS

RIPPLE REJECTION RATIO RRR fIN = 60 kHz 70 dB

SC

1

The long-term stability specification is noncumulative. The drift subsequent 1,000 hour periods are significantly lower than in the first 1,000 hour period.

A Grade 3.292 3.300 3.308 V
B Grade 3.296 3.300 3.304 V
A Grade 8 mV
A Grade 0.25 %
B Grade 4 mV
B Grade 0.125 %
A Grade, −40°C < TA < +125°C 25 ppm/°C TEMPERATURE COEFFICIENT TCV
B Grade, −40°C < TA < +125°C 9 ppm/°C
300 mV

O

VIN = 3.6 V to 15 V, −40°C < TA < +125°C 0.165 mV/V

IN

I

= 0 mA to 5 mA, −40°C < TA < +125°C, VIN = 4.2 V 0.6 mV/mA LOAD REGULATION ∆VO/∆I

LOAD

LOAD

I

= −1 mA to 0 mA, −40°C < TA < +125°C, VIN = 4.2 V 1.35 mV/mA

LOAD

−40°C < TA < +125°C 150 190 µA

0.1 Hz to 10 Hz 9.3 µV p-p
25 µs
1, 000 Hours 50 ppm
100 ppm

VIN = 5 V 25 mA SHORT CIRCUIT TO GND I
VIN = 15 V 30 mA

Rev. 0 | Page 8 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

ABSOLUTE MAXIMUM RATINGS

@ 25°C, unless otherwise noted.

Table 8.

Parameter Rating

Supply Voltage 18 V
Output Short-Circuit Duration to GND

V

< 15 V

IN

V

> 15 V

IN

Storage Temperature Range −65°C to +125°C
Operating Temperature Range –40°C to +125°C
Junction Temperature Range –65°C to +125°C
Lead Temperature Range (Soldering, 60 sec) 300°C

Indefinite
10 sec

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

θJA is specified for the worst-case conditions, that is, θJA is

specified for device soldered in circuit board for surface-mount
packages.

Table 9. Thermal Resistance

Package Type θ

TSOT-23-5 (UJ-5) 230 146 °C/W

JA

θ

JC

Unit

ESD CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the
human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.

Rev. 0 | Page 9 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

()(

)

(

TERMINOLOGY

Temperature Coefficient

Thermal Hysteresis

The change of output voltage with respect to operating
temperature changes normalized by the output voltage at 25°C.
This parameter is expressed in ppm/°C and can be determined
by

[]

Cppm/ ×

TCV

O

=°

OO

()

O

25

×°

()

T–VTV

12

–TTCV

6

10

12

where:

V

(25°C) = VO at 25°C.

O

V

(T1) = VO at Temperature 1.

O

V

(T2) = VO at Temperature 2.

O

Line Regulation

The change in output voltage due to a specified change in input
voltage. This parameter accounts for the effects of self-heating.
Line regulation is expressed in either percent per volt, parts­per-million per volt, or microvolts per volt change in input
voltage.

Load Regulation

The change in output voltage due to a specified change in load
current. This parameter accounts for the effects of self-heating.
Load regulation is expressed in either microvolts per
milliampere, parts-per-million per milliampere, or ohms of dc
output resistance.

Long-Term Stability

Typical shift of output voltage at 25°C on a sample of parts
subjected to a test of 1,000 hours at 25°C.

∆

V

= VO(t0) – VO(t1)

O

⎛

[]

O

⎜

ppmΔV

⎜
⎝

()

()

tV

O

()

OO

0

t–VtV

⎞

6

10

⎟

10

×=

⎟
⎠

The change of output voltage after the device is cycled through
temperature from +25°C to –40°C to +125°C and back to
+25°C. This is a typical value from a sample of parts put
through such a cycle.

V

= VO(25°C) – V

O_HYS

[]

ppmV

O_HYS

=

O_TC

°

O

()

25

O

)

–25

VCV

O_TC

°

CV

6

×

10

where:

V

(25°C) = VO at 25°C.

O

V

= VO at 25°C after temperature cycle at +25°C to –40°C to

O_TC

+125°C and back to +25°C.

NOTES

Input Capacitor

Input capacitors are not required on the ADR36x. There is no
limit for the value of the capacitor used on the input, but a 1 µF
to 10 µF capacitor on the input improves transient response in
applications where the supply suddenly changes. An additional

0.1 µF capacitor in parallel also helps reduce noise from the
supply.

Output Capacitor

The ADR36x does not require output capacitors for stability
under any load condition. An output capacitor, typically 0.1 µF,
filters out any low level noise voltage and does not affect the
operation of the part. On the other hand, the load transient
response can improve with an additional 1 µF to 10 µF output
capacitor in parallel. A capacitor here acts as a source of stored
energy for a sudden increase in load current. The only
parameter that degrades by adding an output capacitor is the
turn-on time. The degradation depends on the size of the
capacitor chosen.

where:

V

(t0) = VO at 25°C at Time 0.

O

V

(t1) = VO at 25°C after 1,000 hours operation at 25°C.

O

Rev. 0 | Page 10 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

TYPICAL PERFORMANCE CHARACTERISTICS

2.052

4.998

4.997

2.050

(V)

2.048

OUT

V

2.046

2.044
–20 0 20 40 60 80 100 120

–40

TEMPERATURE (°C)

Figure 2. ADR360 Output Voltage vs. Temperature

2.504

2.502

2.500

(V)

OUT

V

2.498

2.496

05467-002

4.996

4.995

(V)

4.994

OUT

V

4.993

4.992

4.991

4.990
–25–105 203550658095110

–40

TEMPERATURE (°C)

Figure 5. ADR365 Output Voltage vs. Temperature

0.165

0.155

0.145

IDD (mA)

0.135

0.125

+125°C

+25°C

–40°C

125

05467-005

2.494
–25–105 203550658095110

–40

TEMPERATURE (°C)

Figure 3. ADR361 Output Voltage vs. Temperature

3.003

3.002

3.001

3.000

(V)

OUT

V

2.999

2.998

2.997

2.996

–20 0 20 40 60 80 100 120

–40

TEMPERATURE (°C)

Figure 4. ADR363 Output Voltage vs. Temperature

125

05467-003

05467-004

0.115

2.8

4.1 5.3 6.6 7.8 9.1 10.3 11.6 12.8 14.1
SUPPLY VOLTAGE (V)

Figure 6. ADR361 Supply Current vs. Input Voltage

0.17

+125°C

0.16

+25°C

IDD (mA)

0.15

0.14

5.3

6.3 7.3 8.3 9.3 10.3 11.3 12.3 13.3 14.3
VIN (V)

Figure 7. ADR365 Supply Current vs. Input Voltage

05467-006

–40°C

05467-007

Rev. 0 | Page 11 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

0.18

0.16

0.14

0.12

0.10

0.08

0.06

0.04

LOAD REGULATION (mV/mA)

0.02

0.14

VIN = 9V

VIN = 3.5V

0

–40 125

–25–105 203550658095110

TEMPERATURE (°C)

Figure 8. ADR361 Load Regulation vs. Temperature

LINE REGULATION (ppm/V)

05467-036

Figure 11. ADR361 Line Regulation vs. Temperature, V

9

8

7

6

5

4

3

2

1

0

–40

12

TEMPERATURE (°C)

= 2.8 V to 15 V

IN

05467-009

125–25–105 203550658095110

0.12

0.10

VIN = 9V

0.08

0.06

VIN = 6V

0.04

LOAD REGULATION (mV/mA)

0.02

0

–40 125

–25–105 203550658095110

TEMPERATURE (°C)

Figure 9. ADR365 Load Regulation vs. Temperature

25

20

15

10

LINE REGULATION (ppm/V)

5

0

–40

–20 0 20 40 60 80 100 120

TEMPERATURE (°C)

Figure 10. ADR360 Line Regulation vs. Temperature, V

= 2.45 V to 15 V

IN

05467-037

05467-008

10

8

6

4

LINE REGULATION (ppm/V)

2

0

–40

–20 0 20 40 60 80 100 120

TEMPERATURE (°C)

Figure 12. ADR365 Line Regulation vs. Temperature, V

1.6

1.4

1.2

1.0

0.8

0.6

0.4

DIFFERENTIAL VOLTAGE (V)

0.2

0

–2

–40°C

02468

LOAD CURRENT (mA)

+125°C

+25°C

Figure 13. ADR361 Minimum Input Voltage vs. Load Current

= 5.3 V to 15 V

IN

10

05467-010

05467-011

Rev. 0 | Page 12 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

1.8

1.6

1.4

1.2

1.0

0.8

0.6

DIFFERENTIAL VOLTAGE (V)

0.4

0.2

0

–2

+25°C

LOAD CURRENT (mA)

+125°C

–40°C

Figure 14. ADR365 Minimum Input Voltage vs. Load Current

XX

1002468

05467-012

XX

XX

2µV/DIV

XX

Figure 17. ADR363 0.1 Hz to 10 kHz Noise

XX

TIME = 1s/DIV

05467-015

XX

2µV/DIV

TIME = 1s/DIV

XX

Figure 15. ADR361 Minimum Input Voltage vs. Load Current

XX

XX

50µV/DIV

XX

TIME = 1s/DIV

Figure 16. ADR361 10 Hz to 10 kHz Noise

05467-013

05467-014

XX

50µV/DIV

XX

TIME = 1s/DIV

05467-016

Figure 18. ADR363 10 Hz to 10 kHz Noise

XX

XX

2µV/DIV

XX

TIME = 1s/DIV

05467-017

Figure 19. ADR365 0.1 Hz to 10 Hz Noise

Rev. 0 | Page 13 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

XX

XX

500mV/DIV

V

IN

XX

XX

50

45

40

)

Ω

35

30

25

20

15

OUTPUT IMPEDANCE (

10

5

0

100

10

0

–10

–20

–30

–40

–50

–60

RIPPLE REJECTION (dB)

–70

–80

–90

100µV/DIV

TIME = 1s/DIV

Figure 20. ADR365 10 Hz to 10 kHz Noise

1k 10k

FREQUENCY (Hz)

Figure 21. Voltage Noise Density vs. Frequency

100 1k 10k 100k

FREQUENCY (Hz)

Figure 22. Ripple Rejection Ratio

100k

1M

05467-018

05467-031

05467-030

XX

500mV/DIV

4µs/DIV

XX

V

OUT

Figure 23. ADR361 Line Transient Response (Increasing), No Capacitors

XX

V

IN

500mV/DIV

XX

XX

V

OUT

500mV/DIV

10µs/DIV

Figure 24. ADR361 Line Transient Response (Decreasing), No Capacitors

XX

500mV/DIV

V

IN

XX

20mV/DIV

100µs/DIV

XX

V

OUT

Figure 25. ADR361 Line Transient Response, 0.1 µF Input Capacitor

05467-019

05467-020

05467-021

Rev. 0 | Page 14 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

XX

LOAD OFF

LOAD ON

XX

5V/DIV

INPUT

XX

XX

V

OUT

2ms/DIV

100mV/DIV

05467-032

Figure 26. ADR361 Load Transient Response

XX

LOAD ON

XX

XX

V

OUT

100µs/DIV

100mV/DIV

05467-033

Figure 27. ADR361 Load Transient Response, 0.1 µF Input, Output Capacitor

XX

XX

2.5V/DIV

XX

OUTPUT

400ns/DIV

Figure 29. ADR361 Turn-Off Response at 5 V

XX

5V/DIV

XX

2V/DIV

100µs/DIV

XX

Figure 30. ADR361 Turn-On Response, 0.1 µF Output Capacitor

XX

V

IN

05467-023

V

IN

V

OUT

05467-034

5V/DIV

XX

2.5V/DIV

XX

Figure 28. ADR361 Turn-On Response Time at 5 V

INPUT

OUTPUT

10µs/DIV

05467-022

5V/DIV

V

OUT

XX

2V/DIV

2ms/DIV

XX

Figure 31. ADR361 Turn-Off Response, 0.1 µF Output Capacitor

05467-035

Rev. 0 | Page 15 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

THEORY OF OPERATION

Band gap references are the high performance solution for low
supply voltage and low power voltage reference applications,
and the ADR36x family is no exception. The uniqueness of
these products lies in their architecture. The ideal zero TC band
gap voltage is referenced to the output not to ground (see
Figure 32). Therefore, if noise exists on the ground line, it is
greatly attenuated on V

. The band gap cell consists of the

OUT

PNP pair Q51 and Q52 running at unequal current densities.
The difference in V

results in a voltage with a positive TC,

BE

which is amplified by a ratio of

R58

R54

s of Q51 and Q52,

BE

2×

This PTAT voltage, combined with the V
produces the stable band gap voltage.

Reduction in the band gap curvature is performed by the ratio
of the resistors R44 and R59, one of which is linearly
temperature dependent. Precision laser trimming and other
patented circuit techniques are used to further enhance the drift
performance.

V

IN

Device Power Dissipation Considerations

The ADR36x family is capable of delivering load currents to
5 mA with an input voltage that ranges from 2.348 V (ADR360
only) to 18 V. When this device is used in applications with large
input voltages, care should be taken to avoid exceeding the
specified maximum power dissipation or junction temperature
because it could result in premature device failure. Use the
following formula to calculate a device’s maximum junction
temperature or dissipation:

In this equation,
ambient temperatures,

θ

is the device package thermal resistance.

JA

P =

D

–TT

J

A

θ

JA

T

and TA are, respectively, the junction and

J

P

is the device power dissipation, and

D

SHDN

Q1

R59 R44

R58

R54

Q51

R60

Figure 32. Simplified Schematic

R49

R53

Q52

R48

R61

V

OUT (FORCE)

V

OUT (SENSE)

GND

05467-024

Rev. 0 | Page 16 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

V

APPLICATIONS

BASIC VOLTAGE REFERENCE CONNECTION

The circuit in Figure 33 illustrates the basic configuration for
the ADR36x family. Decoupling capacitors are not required for
circuit stability. The ADR36x family is capable of driving
capacitive loads from 0 µF to 10 µF. However, a 0.1 µF ceramic
output capacitor is recommended to absorb and deliver the
charge as is required by a dynamic load.

1

NC

ADR36x

2

GND

INPUT

0.1µF

3

V

IN

Figure 33. Basic Configuration for the ADR36x Family

Stacking Reference ICs for Arbitrary Outputs

Some applications may require two reference voltage sources,
which are a combined sum of standard outputs. Figure 34 shows
how this stacked output reference can be implemented.

TRIM

V

OUT

5

4

OUTPUT

0.1µF

05467-025

Two reference ICs are used, and fed from an unregulated input,
V

. The outputs of the individual ICs are connected in series,

IN

which provides two output voltages, V
the terminal voltage of U1, while V

OUT2

and V

OUT1

is the sum of this voltage

OUT2

. V

OUT1

is

and the terminal voltage of U2. U1 and U2 are chosen for the
two voltages that supply the required outputs (see Table 10). For
example, if both U1 and U2 are ADR361s, V

is 5.0 V.

V

OUT2

is 2.5 V and

OUT1

Table 10. Output

U1/U2 V

OUT1

V

OUT2

ADR361/ADR365 2.5 7.5
ADR361/ADR361 2.5 5.0
ADR365/ADR361 5 7.5

A Negative Precision Reference Without Precision
Resistors

A negative reference is easily generated by adding an op amp,
A1, and is configured in Figure 35. V

OUTF

and V

are at virtual

OUTS

ground and, therefore, the negative reference can be taken
directly from the output of the op amp. The op amp must be
dual-supply, low offset, and rail-to-rail if the negative supply
voltage is close to the reference output.

1

NC

ADR36x

2

GND

IN

C2

0.1µF

C1

0.1µF

3

V

IN

1

NC

ADR36x

2

GND

3

V

IN

Figure 34. Stacking Voltage References with the ADR36x

TRIM

V

OUT

TRIM

V

OUT

5

1

NC

V

V

OUT2

OUT1

05467-026

+V

DD

–V

REF

4

5

4

ADR36x

2

GND

3

V

IN

–V

DD

–

+

TRIM

V

OUT

5

4

05467-027

Figure 35. Negative Reference

Rev. 0 | Page 17 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

General Purpose Current Source

Many times in low power applications, the need arises for a
precision current source that can operate on low supply
voltages. The ADR36x can be configured as a precision current
source (see Figure 36). The circuit configuration illustrated is a
floating current source with a grounded load. The reference’s
output voltage is bootstrapped across R

, which sets the output

SET

current into the load. With this configuration, circuit precision
is maintained for load currents ranging from the reference’s
supply current, typically 150 µA, to approximately 5 mA.

NC

1

ADR36x

GND

2

+V

DD

V

3

IN

I

SY

Figure 36. Precision Current Source

TRIM

V

OUT

5

4

I

R1

SET

P

1

I

+ I

SET

RL

SY

05467-028

Trim Terminal

The ADR36x trim terminal can be used to adjust the output
voltage over a nominal voltage. This feature allows a system
designer to trim system errors by setting the reference to a
voltage other than the standard voltage option. The resistor R1
is used for fine adjustment and can be omitted if desired. The
resistor values should be carefully chosen to ensure that the
maximum current drive of the part is not exceeded.

+V

DD

R1

100kΩ

1

NC

TRIM

5

ADR36x

2

GND

3

V

IN

V

4

OUT

Figure 37. ADR36x Trim Configuration

POT
10kΩ

R2

1kΩ

V

OUT

05467-029

Rev. 0 | Page 18 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

OUTLINE DIMENSIONS

2.90 BSC

54

0.50

0.30

2.80 BSC

0.95 BSC

*

1.00 MAX

SEATING
PLANE

(UJ-5)

0.20

0.08
8°

4°
0°

0.60

0.45

0.30

1.60 BSC

123

PIN 1

*

0.90

0.87

0.84

0.10 MAX

*

COMPLIANT TO JEDEC STANDARDS MO-193-AB WITH
THE EXCEPTION OF PACKAGE HEIGHT AND THICKNESS.

1.90
BSC

Figure 38. 5-Lead Thin Small Outline Transistor Package [TSOT ]

Dimensions shown in millimeters

ORDERING GUIDE

Output
Voltage Initial Accuracy

Models* (VO) (mV) (%) (ppm/°C)

ADR360AUJZ-REEL7

1

2.048 6 0.29 25 TSOT UJ-5 –40°C to +125°C R0C
ADR360BUJZ-REEL71 2.048 3 0.15 9 TSOT UJ-5 –40°C to +125°C R0D
ADR361AUJZ-REEL71 2.5 6 0.24 25 TSOT UJ-5 –40°C to +125°C R0E
ADR361BUJZ-REEL71 2.5 3 0.12 9 TSOT UJ-5 –40°C to +125°C R0F
ADR363AUJZ-REEL71 3.0 6 0.2 25 TSOT UJ-5 –40°C to +125°C R0G
ADR363BUJZ-REEL71 3.0 3 0.1 9 TSOT UJ-5 –40°C to +125°C R0H
ADR364AUJZ-REEL71 4.096 8 0.2 25 TSOT UJ-5 –40°C to +125°C R0J
ADR364BUJZ-REEL71 4.096 4 0.1 9 TSOT UJ-5 –40°C to +125°C R0K
ADR365AUJZ-REEL71 5.0 8 0.16 25 TSOT UJ-5 –40°C to +125°C R0L
ADR365BUJZ-REEL71 5.0 4 0.08 9 TSOT UJ-5 –40°C to +125°C R0M
ADR366AUJZ-REEL71 3.3 8 0.25 25 TSOT UJ-5 –40°C to +125°C R08
ADR366BUJZ-REEL71 3.3 4 0.125 9 TSOT UJ-5 –40°C to +125°C R09

1

Z = Pb-free part

*3,000 pieces per reel

Temperature
Coefficient

Package
Description

Package
Option

Temperature
Range

Branding

Rev. 0 | Page 19 of 20

ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

NOTES

© 2005 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.

D05467–0–4/05(0)

Rev. 0 | Page 20 of 20