ADR291FRZ Analog Devices Inc, ADR291FRZ Datasheet

ADR291FRZ

Manufacturer Part Number

ADR291FRZ

Description

IC,VOLT REFERENCE,FIXED,2.5V,BIPOLAR/JFET,SOP,8PIN,PLASTIC

Manufacturer

Analog Devices Inc

Series

XFET®r

Type

Voltage Referencer

Datasheets

1.ADR292GRZ.pdf (20 pages)

2.ADR291FRZ.pdf (7 pages)

Specifications of ADR291FRZ

Reference Type

Series

Voltage - Output

2.5V

Tolerance

±0.12%

Temperature Coefficient

20ppm/°C

Voltage - Input

2.8 ~ 15 V

Number Of Channels

Current - Quiescent

15µA

Current - Output

5mA

Operating Temperature

-40°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

8-SOIC (3.9mm Width)

Current, Output

5 mA

Current, Supply

12 μA

Package Type

SOIC-8

Power Dissipation

60 μW

Regulation, Line

40 ppm/V

Regulation, Load

20 ppm/mA

Regulator Type

Switching

Temperature, Operating, Range

-40 to +125 °C

Voltage, Noise

8 μVp-p

Voltage, Output

2.5 V

Voltage, Supply

2.8 to 15 V

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current - Cathode

Lead Free Status / Rohs Status

RoHS Compliant part Electrostatic Device

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ADR291FRZ

Manufacturer:

MAXIM

Quantity:

8 675

Current page: 1 of 7
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FEATURES

Supply range

Supply current: 15 μA maximum

Low noise: 8 μV and 12 μV p-p (0.1 Hz to 10 Hz)

High output current: 5 mA

Temperature range: −40°C to +125°C

Pin-compatible with

APPLICATIONS

Portable instrumentation

Precision reference for 3 V and 5 V systems

Analog-to-digital and digital-to-analog converter reference

Solar-powered applications

Loop-current-powered instruments

GENERAL DESCRIPTION

The ADR291 and ADR292 are low noise, micropower precision

voltage references that use an XFET® reference circuit. The new

XFET architecture offers significant performance improvements

over traditional band gap and buried Zener-based references.

Improvements include one quarter the voltage noise output of

band gap references operating at the same current, very low and

ultralinear temperature drift, low thermal hysteresis, and

excellent long-term stability.

The ADR291/ADR292 family is a series of voltage references

providing stable and accurate output voltages from supplies as

low as 2.8 V for the ADR291. Output voltage options are 2.5 V

and 4.096 V for the ADR291 and ADR292, respectively.

Quiescent current is only 12 μA, making these devices ideal for

battery-powered instrumentation. Three electrical grades are

available offering initial output accuracies of ±2 mV, ±3 mV,

and ±6 mV maximum for the ADR291, and ±3 mV, ±4 mV,

and ±6 mV maximum for the ADR292. Temperature

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.

2.8 V to 15 V, ADR291

4.4 V to 15 V, ADR292

REF02/REF19x

4.096 V Precision Voltage References

Low Noise Micropower 2.5 V and

coefficients for the three grades are 8 ppm/°C, 15 ppm/°C, and

25 ppm/°C maximum, respectively. Line regulation and load

regulation are typically 30 ppm/V and 30 ppm/mA, maintaining

the reference’s overall high performance. For a device with 5.0 V

output, refer to the ADR293 data sheet.

The ADR291 and ADR292 references are specified over the

extended industrial temperature range of −40°C to +125°C.

Devices are available in the 8-lead SOIC, 8-lead TSSOP, and

3-lead TO-92 packages.

Table 1. ADR291/ADR292 Product

Part No.

ADR291

ADR292

Output

Voltage (V)

2.500

4.096

CONNECTION DIAGRAMS

GND

Figure 2. 8-Lead TSSOP (RU-8)

Figure 3. 3-Lead TO-92 (T-3)

Figure 1. 8-Lead SOIC (R-8)

OUT

NC = NO CONNECT

(Not to Scale)

ADR291/

ADR292

TOP VIEW

ADR292

TOP VIEW

ADR291

Initial

Accuracy (±%)

0.08, 0.12, 0.24

0.07, 0.10, 0.15

ADR291/ADR292

GND

OUT

Temperature

Coefficient

(ppm/°C) Max

8, 15, 25

Related parts for ADR291FRZ

ADR291FRZ Summary of contents

Page 1

FEATURES Supply range 2 ADR291 4 ADR292 Supply current: 15 μA maximum Low noise: 8 μV and 12 μV p-p (0 Hz) High output current Temperature range: ...

Page 2

SPECIFICATIONS ADR291 ELECTRICAL SPECIFICATIONS 25°C, unless otherwise noted Table 2. Parameter Symbol E GRADE Output Voltage V OUT Initial Accuracy V OERR F GRADE Output Voltage V OUT Initial ...

Page 3

ADR291/ADR292 −40°C to+125°C, unless otherwise noted Table 4. Parameter TEMPERATURE COEFFICIENT E Grade F Grade G Grade LINE REGULATION E/F Grades G Grade LOAD REGULATION E/F Grades G Grade ...

Page 4

−25°C to +85°C, unless otherwise noted Table 6. Parameter TEMPERATURE COEFFICIENT E Grade F Grade G Grade LINE REGULATION E/F Grades G Grade LOAD REGULATION E/F Grades G Grade ...

ADR291/ADR292 ABSOLUTE MAXIMUM RATINGS Remove power before inserting or removing units from their sockets. Table 8. Parameter Supply Voltage Output Short-Circuit Duration to GND Storage Temperature Range Packages Operating Temperature Range ADR291/ADR292 Junction Temperature Range T, R, ...

Page 6

ADR291/ADR292 OUTLINE DIMENSIONS 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497) 4 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 0.25 (0.0098) 0.10 (0.0040) 0.51 (0.0201) COPLANARITY 0.10 0.31 (0.0122) 0.25 (0.0098) SEATING PLANE ...

Page 7

... Model Voltage ADR291ER 2.50 ADR291ER-REEL7 2.50 ADR291ERZ 1 2.50 1 ADR291ERZ-REEL7 2.50 ADR291FR 2.50 ADR291FR-REEL 2.50 ADR291FR-REEL7 2.50 1 ADR291FRZ 2.50 1 ADR291FRZ-REEL 2.50 1 ADR291FRZ-REEL7 2.50 ADR291GR 2.50 ADR291GR-REEL 2.50 ADR291GR-REEL7 2.50 1 ADR291GRZ 2.50 1 ADR291GRZ-REEL 2.50 1 ADR291GRZ-REEL7 2.50 ADR291GRU 2.50 ADR291GRU-REEL7 2.50 1 ADR291GRUZ 2.50 1 ADR291GRUZ-REEL 2 ...

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ADR291FRZ Analog Devices Inc, ADR291FRZ Datasheet

ADR291FRZ

Specifications of ADR291FRZ

Available stocks

Related parts for ADR291FRZ

ADR291FRZ Summary of contents

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Page 4

Page 5

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Page 7

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