Zakładka z wyszukiwarką danych komponentów |
|
AD9708 Arkusz danych(PDF) 1 Page - Analog Devices |
|
AD9708 Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 16 page 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 AD9708* One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1999 8-Bit, 100 MSPS+ TxDAC® D/A Converter FUNCTIONAL BLOCK DIAGRAM +1.20V REF REFLO REF IO FS ADJ 50pF COMP1 0.1 F CURRENT SOURCE ARRAY +5V AVDD SEGMENTED SWITCHES LATCHES DIGITAL DATA INPUTS (DB7–DB0) DVDD DCOM CLOCK SLEEP IOUTA IOUTB COMP2 ACOM 0.1 F +5V RSET CLOCK 0.1 F AD9708 FEATURES Member of Pin-Compatible TxDAC Product Family 125 MSPS Update Rate 8-Bit Resolution Linearity: 1/4 LSB DNL Linearity: 1/4 LSB INL Differential Current Outputs SINAD @ 5 MHz Output: 50 dB Power Dissipation: 175 mW @ 5 V to 45 mW @ 3 V Power-Down Mode: 20 mW @ 5 V On-Chip 1.20 V Reference Single +5 V or +3 V Supply Operation Packages: 28-Lead SOIC and 28-Lead TSSOP Edge-Triggered Latches Fast Settling: 35 ns Full-Scale Settling to 0.1% APPLICATIONS Communications Signal Reconstruction Instrumentation PRODUCT DESCRIPTION The AD9708 is the 8-bit resolution member of the TxDAC series of high performance, low power CMOS digital-to-analog converters (DACs). The TxDAC family, which consists of pin compatible 8-, 10-, 12-, and 14-bit DACs, was specifically opti- mized for the transmit signal path of communication systems. All of the devices share the same interface options, small outline package and pinout, thus providing an upward or downward component selection path based on performance, resolution and cost. The AD9708 offers exceptional ac and dc performance while supporting update rates up to 125 MSPS. The AD9708’s flexible single-supply operating range of +2.7 V to +5.5 V and low power dissipation are well suited for portable and low power applications. Its power dissipation can be further reduced to 45 mW, without a significant degradation in performance, by lowering the full-scale current output. In addi- tion, a power-down mode reduces the standby power dissipa- tion to approximately 20 mW. The AD9708 is manufactured on an advanced CMOS process. A segmented current source architecture is combined with a proprietary switching technique to reduce spurious components and enhance dynamic performance. Edge-triggered input latches and a temperature compensated bandgap reference have been inte- grated to provide a complete monolithic DAC solution. Flexible supply options support +3 V and +5 V CMOS logic families. The AD9708 is a current-output DAC with a nominal full-scale output current of 20 mA and > 100 k Ω output impedance. TxDAC is a registered trademark of Analog Devices, Inc. *Patent pending. Differential current outputs are provided to support single- ended or differential applications. The current outputs may be directly tied to an output resistor to provide two complemen- tary, single-ended voltage outputs. The output voltage compliance range is 1.25 V. The AD9708 contains a 1.2 V on-chip reference and reference control amplifier, which allows the full-scale output current to be simply set by a single resistor. The AD9708 can be driven by a variety of external reference voltages. The AD9708’s full-scale current can be adjusted over a 2 mA to 20 mA range without any degradation in dynamic performance. Thus, the AD9708 may operate at reduced power levels or be adjusted over a 20 dB range to provide additional gain ranging capabilities. The AD9708 is available in 28-lead SOIC and 28-lead TSSOP packages. It is specified for operation over the industrial tem- perature range. PRODUCT HIGHLIGHTS 1. The AD9708 is a member of the TxDAC product family, which provides an upward or downward component selection path based on resolution (8 to 14 bits), performance and cost. 2. Manufactured on a CMOS process, the AD9708 uses a pro- prietary switching technique that enhances dynamic perfor- mance well beyond 8- and 10-bit video DACs. 3. On-chip, edge-triggered input CMOS latches readily interface to +3 V and +5 V CMOS logic families. The AD9708 can support update rates up to 125 MSPS. 4. A flexible single-supply operating range of +2.7 V to +5.5 V and a wide full-scale current adjustment span of 2 mA to 20 mA allows the AD9708 to operate at reduced power levels (i.e., 45 mW) without any degradation in dynamic performance. 5. A temperature compensated, 1.20 V bandgap reference is included on-chip providing a complete DAC solution. An external reference may be used. 6. The current output(s) of the AD9708 can easily be config- ured for various single-ended or differential applications. |
Podobny numer części - AD9708 |
|
Podobny opis - AD9708 |
|
|
Link URL |
Polityka prywatności |
ALLDATASHEET.PL |
Czy Alldatasheet okazała się pomocna? [ DONATE ] |
O Alldatasheet | Reklama | Kontakt | Polityka prywatności | Linki | Lista producentów 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 |