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AD1866 Arkusz danych(PDF) 1 Page - Analog Devices |
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AD1866 Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 12 page FUNCTIONAL BLOCK DIAGRAM LL DL CLK DR LR DGND V L NRL AGND NRR VS 1 2 3 4 5 6 7 8 9 10 12 13 14 15 11 16 AD1866 16-BIT DAC 16-BIT DAC 16-BIT SERIAL REGISTER 16-BIT SERIAL REGISTER VBL VOR VS VBR V REF V REF VOL REV. 0 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 Single Supply Dual 16-Bit Audio DAC AD1866* One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 FEATURES Dual Serial Input, Voltage Output DACs Single +5 Volt Supply 0.005% THD+N Low Power –50 mW 115 dB Channel Separation Operates at 8 Oversampling 16-Pin Plastic DIP or SOIC Package APPLICATIONS Multimedia Workstations PC Audio Add-In Boards Portable CD and DAT Players Automotive CD and DAT Players Noise Cancellation PRODUCT DESCRIPTION The AD1866 is a complete dual 16-bit DAC offering excellent performance while requiring a single +5 V power supply. It is fabricated on Analog Devices’ ABCMOS wafer fabrication process. The monolithic chip includes CMOS logic elements, bipolar and MOS linear elements and laser trimmed, thin- film resistor elements. Careful design and layout techniques have resulted in low distortion, low noise, high channel separa- tion and low power dissipation. The DACs on the AD1866 chip employ a partially segmented architecture. The first three MSBs of each DAC are segmented into 7 elements. The 13 LSBs are produced using standard R-2R techniques. The segments and R-2R resistors are laser trimmed to provide extremely low total harmonic distortion. The AD1866 requires no deglitcher or trimming circuitry. Each DAC is equipped with a high performance output ampli- fier. These amplifiers achieve fast settling and high slew rate, producing ±1 V signals at load currents up to ±1 mA. The buff- ered output signal range is 1.5 V to 3.5 V. The 2.5 V reference voltages eliminate the need for “false ground” networks. A versatile digital interface allows the AD1866 to be directly connected to all digital filter chips. Fast CMOS logic elements allow for an input clock rate of up to 16 MHz. This allows for operation at 2 ×, 4×, 8×, or 16× the sampling frequency (where FS = 44.1 kHz) for each channel. The digital input pins of the AD1866 are TTL and +5 V CMOS compatible. *Protected by U.S. Patent Nos: 3,961,326; 4,141,004; 4,349,811; 4,857,862; and patents pending. The AD1866 operates on +5 V power supplies. The digital supply, VL, can be separated from the analog supply, VS, for re- duced digital feedthrough. Separate analog and digital ground pins are also provided. In systems employing a single +5 volt power supply, VL and VS should be connected together. In bat- tery operated systems, operation will continue even with re- duced supply voltage. Typically, the AD1866 dissipates 50 mW. The AD1866 is packaged in either a 16-pin plastic DIP or a 16-pin plastic SOIC package. Operation is guaranteed over the temperature range of –35 °C to +85°C and over the voltage supply range of 4.75 V to 5.25 V. PRODUCT HIGHLIGHTS 1. Single supply operation @ +5 V. 2. 50 mW power dissipation. 3. THD+N is 0.005% (typical). 4. Signal-to-Noise Ratio is 95 dB (typical). 5. 115 dB channel separation (typical). 6. Compatible with all digital filter chips. 7. 16-pin DIP and 16-pin SOIC packages. 8. No deglitcher required. 9. No external adjustments required. |
Podobny numer części - AD1866 |
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Podobny opis - AD1866 |
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