AD780BRZ-REEL

更新时间： 2024-11-01 12:27:59

品牌	Logo	应用领域
亚德诺 - ADI		电源电路参考电压源光电二极管 PC
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12页	264K
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2.5 V/3.0 V High Precision Reference

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AD780BRZ-REEL 数据手册

2.5 V/3.0 V

High Precision Reference

Data Sheet

AD780

FUNCTIONAL BLOCK DIAGRAM

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

AD780

Low noise: 100 nV/√

R10

R11

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)

OUT

R13

R16

TRIM

R14

TEMP

R15

O/P SELECT

2.5V – NC

3.0V – GND

GND

NC = NO CONNECT

Figure 1.

PRODUCT DESCRIPTION

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 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 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

output from a 4 V to 36 V input.

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.

2. Laser trimming of both initial accuracy and temperature

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.

3. For applications that require even higher accuracy, an

optional fine-trim connection is provided.

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

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

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.

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

desired, by using two external capacitors.

5. The temperature output pin enables the AD780 to be

configured as a temperature transducer while providing a

stable output reference.

Rev. F

Document Feedback

Information furnishedby Analog Devices is believedto be accurate andreliable. However, no

responsibilityisassumedbyAnalog Devices for its use, nor for anyinfringements of patents or other

rights of third partiesthat may result from its use. Specifications subject to change without notice. No

license isgrantedbyimplication or otherwise under anypatent or patent rights of Analog Devices.

Trademarks andregisteredtrademarks are the property of their respective owners.

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

Tel: 781.329.4700

Technical Support

www.analog.com

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AD780BRZ-REEL 替代型号

型号	品牌	替代类型	描述	数据表
AD780BR-REEL	ADI	完全替代	2.5 V/3.0 V High Precision Reference
AD780BRZ-REEL7	ADI	类似代替	2.5 V/3.0 V High Precision Reference
AD780BRZ	ADI	功能相似	2.5 V/3.0 V High Precision Reference

与AD780BRZ-REEL相关器件

型号	品牌	获取价格	描述	数据表
AD780BRZ-REEL7	ADI	获取价格	2.5 V/3.0 V High Precision Reference
AD780CR	ADI	获取价格	2.5 V/3.0 V High Precision Reference
AD780CR-REEL7	ADI	获取价格	2.5 V/3.0 V High Precision Reference
AD780CRZ	ADI	获取价格	2.5 V/3.0 V High Precision Reference
AD780CRZ-REEL7	ADI	获取价格	2.5 V/3.0 V High Precision Reference
AD780SQ/883B	ADI	获取价格	1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5V, CDIP8, CERDIP-8
AD781	ADI	获取价格	Complete 700 ns Sample-and-Hold Amplifier
AD781*	ETC	获取价格	Complete 700 ns Sample-and-Hold Amplifier
AD7810	ADI	获取价格	2.7 V to 5.5 V, 2 us, 10-Bit ADC in 8-Lead microSOIC/DIP
AD7810YN	ADI	获取价格	2.7 V to 5.5 V, 2 us, 10-Bit ADC in 8-Lead microSOIC/DIP

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