AD780BNZ Analog Devices Inc, AD780BNZ Datasheet

AD780BNZ

Manufacturer Part Number

AD780BNZ

Description

IC PREC V-REF 2.5V/3.0V 8-DIP

Manufacturer

Analog Devices Inc

Type

Voltage Referencer

Datasheets

1.AD780ARZ.pdf (12 pages)

2.AD780BRZ.pdf (5 pages)

Specifications of AD780BNZ

Temperature Coefficient

3ppm/°C

Operating Temperature

-40°C ~ 85°C

Design Resources

Using AD8599 as an Ultralow Distortion Driver for the AD7991 (CN0043) Using AD8599 as an Ultralow Distortion Driver for the AD7995 (CN0044) Using AD8599 as an Ultralow Distortion Driver for the AD7999 (CN0045) Using AD7328 in Appls with Single-Ended Industrial-Level Signals (CN0047) AD5382 Channel Monitor Function (CN0012) AD5383 Channel Monitor Function (CN0015) AD5390/91/92 Channel Monitor Function (CN0030) Measuring -48 V High-Side Current Using AD629, AD8603, AD780, and AD7453 (CN0100) High Voltage, High Precision Current Sensing with Output Level Shifting Using AD8210 and AD8274 (CN0116)

Reference Type

Series and Shunt, Programmable

Voltage - Output

2.5V, 3V

Tolerance

±1mV

Voltage - Input

4 ~ 36 V

Number Of Channels

Current - Quiescent

1mA

Current - Output

10mA

Mounting Type

Through Hole

Package / Case

8-DIP (0.300", 7.62mm)

Topology

Series

Input Voltage

4V To 36V

Reference Voltage

2.5V

Reference Voltage Tolerance

1mV

Voltage Reference Case Style

DIP

No. Of Pins

Current, Output

0 to 10 mA

Current, Supply

0.75 mA

Package Type

PDIP-8

Power Dissipation

500 mW

Regulation, Line

10 μV/V

Regulation, Load

75 μV/mA

Regulator Type

Negative Voltage Out, Series/Shunt

Temperature, Operating, Range

-40 to +85 °C

Voltage, Input

5 V

Voltage, Noise

4 μVp-p

Voltage, Output

2.501 or 3.001 V

Voltage, Supply

4.5 to 5 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:

Meier Automation Equipment Co., Limited

Part Number:

AD780BNZ

Manufacturer:

ADI/亚德诺

Quantity:

20 000

Current page: 1 of 5
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FEATURES

Pin programmable 2.5 V or 3.0 V output

Ultralow drift: 3 ppm/°C max

High accuracy: 2.5 V or 3.0 V ±1 mV max

Low noise: 100 nV/√Hz

Noise reduction capability

Low quiescent current: 1 mA max

Output trim capability

Plug-in upgrade for present references

Temperature output pin

Series or shunt mode operation (±2.5 V, ±3.0 V)

PRODUCT DESCRIPTION

The AD780 is an ultrahigh precision band gap reference voltage

that provides a 2.5 V or 3.0 V output from inputs between 4.0 V

and 36 V. Low initial error and temperature drift combined with

low output noise and the ability to drive any value of

capacitance make the AD780 the ideal choice for enhancing the

performance of high resolution ADCs and DACs, and for any

general-purpose precision reference application. A unique low

headroom design facilitates a 3.0 V output from a 5.0 V 10%

input, providing a 20% boost to the dynamic range of an ADC

over performance with existing 2.5 V references.

The AD780 can be used to source or sink up to 10 mA, and can

be used in series or shunt mode, thus allowing positive or

negative output voltages without external components. This

makes it suitable for virtually any high performance reference

application. Unlike some competing references, the AD780 has

no region of possible instability. The part is stable under all load

conditions when a 1 µF bypass capacitor is used on the supply.

A temperature output pin on the AD780 provides an output

voltage that varies linearly with temperature, allowing the part

to be configured as a temperature transducer while providing a

stable 2.5 V or 3.0 V output.

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.

The AD780 is a pin compatible performance upgrade for the

LT1019(A)–2.5 and the AD680. The latter is targeted toward

low power applications.

The AD780 is available in three grades in PDIP and SOIC

packages. The AD780AN, AD780AR, AD780BN, AD780BR, and

AD780CR are specified for operation from −40°C to +85°C.

PRODUCT HIGHLIGHTS

1. The AD780 provides a pin programmable 2.5 V or 3.0 V

2. Laser trimming of both initial accuracy and temperature

3. For applications that require even higher accuracy, an

4. The AD780 noise is extremely low, typically 4 mV p-p from

5. The temperature output pin enables the AD780 to be

output from a 4 V to 36 V input.

coefficients results in low errors over temperature without

the use of external components. The AD780BN has a

maximum variation of 0.9 mV from −40°C to +85°C.

optional fine-trim connection is provided.

0.1 Hz to 10 Hz and a wideband spectral noise density of

typically 100 nV/√ Hz . This can be further reduced, if

desired, by using two external capacitors.

configured as a temperature transducer while providing a

stable output reference.

TEMP

NC = NO CONNECT

High Precision Reference

FUNCTIONAL BLOCK DIAGRAM

AD780

R10

GND

R11

Figure 1.

R14

O/P SELECT

2.5V – NC

3.0V – GND

2.5 V/3.0 V

R13

R15

R16

AD780

TRIM

OUT

Related parts for AD780BNZ

AD780BNZ Summary of contents

Page 1

FEATURES Pin programmable 2 3.0 V output Ultralow drift: 3 ppm/°C max High accuracy: 2 3.0 V ±1 mV max Low noise: 100 nV/√Hz Noise reduction capability Low quiescent current max Output trim capability ...

Page 2

SPECIFICATIONS T = 25° unless otherwise noted Table 1. Parameter OUTPUT VOLTAGE 2.5 V Out 3.0 V Out 1 OUTPUT VOLTAGE DRIFT −40°C to +85°C −55°C to +125°C LINE REGULATION 2.5 V Output, 4 ...

Page 3

AD780 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Values +V to Ground TRIM Pin to Ground 36 V TEMP Pin to Ground 36 V Power Dissipation (25°C) 500 mW Storage Temperature −65°C to +150°C Lead Temperature 300°C (Soldering ...

Page 4

OUTLINE DIMENSIONS 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2440) 4.00 (0.1574) 5.80 (0.2284) 3.80 (0.1497 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 0.25 (0.0098) 0.31 (0.0122) SEATING 0.10 0.17 (0.0067) ...

Page 5

AD780 ORDERING GUIDE Model Initial Error Temperature Range AD780AN ±5.0 mV −40°C to +85°C AD780AR ±5.0 mV −40°C to +85°C AD780AR-REEL7 ±5.0 mV −40°C to +85°C 1 AD780ARZ ±5.0 mV −40°C to +85°C AD780BN ±1.0 mV −40°C to +85°C AD780BR ...

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