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AD9042DPCB Arkusz danych(PDF) 1 Page - Analog Devices |
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AD9042DPCB Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 24 page REV. A 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 12-Bit, 41 MSPS Monolithic A/D Converter FEATURES 41 MSPS Minimum Sample Rate 80 dB Spurious-Free Dynamic Range 595 mW Power Dissipation Single +5 V Supply On-Chip T/H and Reference Twos Complement Output Format CMOS-Compatible Output Levels APPLICATIONS Cellular/PCS Base Stations GPS Anti-Jamming Receivers Communications Receivers Spectrum Analyzers Electro-Optics Medical Imaging ATE FUNCTIONAL BLOCK DIAGRAM AIN ENCODE VREF DVCC AVCC AD9042 ADC VOFFSET 6 DAC TH2 A1 TH1 +2.4V REFERENCE INTERNAL TIMING D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 MSB LSB TH3 A2 ADC DIGITAL ERROR CORRECTION LOGIC 7 ENCODE GND © 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 PRODUCT DESCRIPTION The AD9042 is a high speed, high performance, low power, monolithic 12-bit analog-to-digital converter. All necessary functions, including track-and-hold (T/H) and reference are included on chip to provide a complete conversion solution. The AD9042 runs off of a single +5 V supply and provides CMOS-compatible digital outputs at 41 MSPS. Designed specifically to address the needs of wideband, multichannel receivers, the AD9042 maintains 80 dB spurious-free dynamic range (SFDR) over a bandwidth of 20 MHz. Noise performance is also exceptional; typical signal-to-noise ratio is 68 dB. The AD9042 is built on Analog Devices’ high speed complemen- tary bipolar process (XFCB) and uses an innovative multipass architecture. Units are packaged in a 28-pin DIP; this custom AD9042AD PIN DESIGNATIONS 14 13 12 11 17 16 15 20 19 18 10 9 8 1 2 3 4 7 6 5 28 27 26 25 24 23 22 21 NC = NO CONNECT GND D8 D9 D10 D11 (MSB) DVCC GND ENCODE D5 D6 D7 ENCODE GND GND AIN VOFFSET VREF D2 D3 D4 GND AVCC GND AVCC D1 NC NC D0 (LSB) TOP VIEW (Not to Scale) AD9042 cofired ceramic package forms a multilayer substrate to which internal bypass capacitors and the 9042 die are attached and a 44-pin TQFP low profile surface mount package. The AD9042 industrial grade is specified from –40 °C to +85°C. However, the AD9042 was designed to perform over the full military temperature range (–55 °C to +125°C); consult factory for military grade product options. PRODUCT HIGHLIGHTS 1. Guaranteed sample rate is 41 MSPS. 2. Dynamic performance specified over entire Nyquist band; spurious signals typ. 80 dBc for –1 dBFS input signals. 3. Low power dissipation: 595 mW off a single +5 V supply. 4. Reference and track-and-hold included on chip. 5. Packaged in 28-pin ceramic DIP and 44-pin TQFP. AD9042AST PIN DESIGNATIONS AD9042 3 4 5 6 7 1 2 10 11 8 9 40 39 38 41 42 43 44 36 35 34 37 29 30 31 32 33 27 28 25 26 23 24 12 13 14 15 16 17 18 19 20 21 22 PIN 1 TOP VIEW (Not to Scale) D8 D7 D6 D5 D4 D3 D2 AD9042 DVCC DVCC ENCODE ENCODE GND GND AIN NC = NO CONNECT VOFFSET VREF C1 AVCC D1 D0 (LSB) GND NC |
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