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AD680JR Datenblatt(PDF) 1 Page - Analog Devices |
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AD680JR Datenblatt(HTML) 1 Page - Analog Devices |
1 / 8 page CONNECTION DIAGRAMS 1 2 3 4 8 7 6 5 TOP VIEW (Not to Scale) AD680 TP* +V IN TEMP GND TP* TP* VOUT NC NC = NO CONNECT TP DENOTES FACTORY TEST POINT. NO CONNECTIONS SHOULD BE MADE TO THESE PINS. * 3 2 1 +V IN V OUT GND AD680 BOTTOM VIEW (Not to Scale) REV. C 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a Low Power, Low Cost 2.5 V Reference AD680* FEATURES Low Quiescent Current: 250 A max Laser Trimmed to High Accuracy: 2.5 V 5 mV max (AN, AR Grade) Trimmed Temperature Coefficient: 20 ppm/ C max (AN, AR Grade) Low Noise: 8 V p-p from 0.1 Hz to 10 Hz 250 nV/ √Hz Wideband Temperature Output Pin (N, R Packages) Available in Three Package Styles: 8-Pin Plastic DIP, 8-Pin SOIC and 3-Pin TO-92 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 PRODUCT DESCRIPTION The AD680 is a bandgap voltage reference which provides a fixed 2.5 V output from inputs between 4.5 V and 36 V. The architecture of the AD680 enables the reference to be operated at a very low quiescent current while still realizing excellent dc characteristics and noise performance. Trimming of the high stability thin-film resistors is performed for initial accuracy and temperature coefficient, resulting in low errors over temperature. The precision dc characteristics of the AD680 make it ideal for use as a reference for D/A converters which require an external precision reference. The device is also ideal for A/D converters and, in general, can offer better performance than the standard on-chip references. Based upon the low quiescent current of the AD680, which rivals that of many incomplete two-terminal references, the AD680 is recommended for low power applications such as hand-held battery equipment. A temperature output pin is provided on the 8-pin package ver- sions of the AD680. The temperature output pin provides an output voltage that varies linearly with temperature and allows the AD680 to be configured as a temperature transducer while providing a stable 2.5 V output. The AD680 is available in five grades. The AD680AN is speci- fied for operation from –40 °C to +85°C, while the AD680JN is specified for 0 °C to +70°C operation. Both the AD680AN and AD680JN are available in 8-pin plastic DIP packages. The AD680AR is specified for operation from –40 °C to +85°C, while the AD680JR is specified for 0 °C to +70°C operation. Both are available in an 8-pin Small Outline IC (SOIC) pack- age. The AD680JT is specified for 0 °C to +70°C operation and is available in a 3-pin TO-92 package. *Protected by U.S. Patent Nos. 4,902,959; 4,250,445 and 4,857,862. PRODUCT HIGHLIGHTS 1. The AD680 bandgap reference operates on a very low quies- cent current which rivals that of many two-terminal refer- ences. This makes the complete, higher accuracy AD680 ideal for use in power sensitive applications. 2. Laser trimming of both initial accuracy and temperature coefficients results in low errors over temperature without the use of external components. The AD680AN and AD680AR have a maximum variation of 6.25 mV between –40 °C and +85 °C. 3. The AD680 noise is low, typically 8 µV p-p from 0.1 Hz to 10 Hz. Spectral density is also low, typically 250 nV/ √Hz. 4. The temperature output pin on the 8-pin package versions enables the AD680 to be configured as a temperature trans- ducer. 5. Plastic DIP packaging provides machine insertability, while SOIC packaging provides surface mount capability. TO-92 packaging offers a cost effective alternative to two-terminal references, offering a complete solution in the same package in which two-terminal references are usually found. |
Ähnliche Teilenummer - AD680JR |
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Ähnliche Beschreibung - AD680JR |
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