Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
AD768 Datasheet(PDF) 1 Page - Analog Devices |
|
AD768 Datasheet(HTML) 1 Page - Analog Devices |
1 / 20 page FUNCTIONAL BLOCK DIAGRAM (MSB) DB15 DB0 (LSB) CLOCK NC REFCOM REFOUT IREFIN NR VEE LADCOM IOUTB IOUTA DCOM VDD MSBs: SEGMENTED CURRENT SOURCES AND SWITCHES MSB DECODER AND EDGE- TRIGGERED BIT LATCHES LSBs: CURRENT SOURCES, SWITCHES, AND 1k Ω R-2R LADDERS AD768 CONTROL AMP 2.5V BANDGAP REFERENCE 1k 1k REV. B 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 FEATURES 30 MSPS Update Rate 16-Bit Resolution Linearity: 1/2 LSB DNL @ 14 Bits 1 LSB INL @ 14 Bits Fast Settling: 25 ns Full-Scale Settling to 0.025% SFDR @ 1 MHz Output: 86 dBc THD @ 1 MHz Output: 71 dBc Low Glitch Impulse: 35 pV-s Power Dissipation: 465 mW On-Chip 2.5 V Reference Edge-Triggered Latches Multiplying Reference Capability APPLICATIONS Arbitrary Waveform Generation Communications Waveform Reconstruction Vector Stroke Display 16-Bit, 30 MSPS D/A Converter AD768 PRODUCT DESCRIPTION The AD768 is a 16-bit, high speed digital-to-analog converter (DAC) that offers exceptional ac and dc performance. The AD768 is manufactured on ADI’s Advanced Bipolar CMOS (ABCMOS) process, combining the speed of bipolar transistors, the accuracy of laser-trimmable thin film resistors, and the effi- ciency of CMOS logic. A segmented current source architecture is combined with a proprietary switching technique to reduce glitch energy and maximize dynamic accuracy. Edge triggered input latches and a temperature compensated bandgap reference have been integrated to provide a complete monolithic DAC solution. The AD768 is a current-output DAC with a nominal full-scale output current of 20 mA and a 1 k Ω output impedance. Differ- ential current outputs are provided to support single-ended or differential applications. The current outputs may be tied directly to an output resistor to provide a voltage output, or fed to the summing junction of a high speed amplifier to provide a buffered voltage output. Also, the differential outputs may be interfaced to a transformer or differential amplifier. The on-chip reference and control amplifier are configured for maximum accuracy and flexibility. The AD768 can be driven by the on-chip reference or by a variety of external reference volt- ages based on the selection of an external resistor. An external capacitor allows the user to optimally trade off reference band- width and noise performance. The AD768 operates on ±5 V supplies, typically consuming 465 mW of power. The AD768 is available in a 28-pin SOIC package and is specified for operation over the industrial tem- perature range. PRODUCT HIGHLIGHTS 1. The low glitch and fast settling time provide outstanding dynamic performance for waveform reconstruction or digital synthesis requirements, including communications. 2. The excellent dc accuracy of the AD768 makes it suitable for high speed A/D conversion applications. 3. On-chip, edge-triggered input CMOS latches interface readily to CMOS logic families. The AD768 can support up- date rates up to 40 MSPS. 4. A temperature compensated, 2.5 V bandgap reference is included on-chip allowing for generation of the reference input current with the use of a single external resistor. An ex- ternal reference may also be used. 5. The current output(s) of the AD768 may be used singly or differentially, either into a load resistor, external op amp summing junction or transformer. 6. Proper selection of an external resistor and compensation capacitor allow the performance-conscious user to optimize the AD768 reference level and bandwidth for the target application. © Analog Devices, Inc., 1996 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 |
Número de pieza similar - AD768 |
|
Descripción similar - AD768 |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |