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AD10242TZ Folha de dados(PDF) 1 Page - Analog Devices |
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AD10242TZ Folha de dados(HTML) 1 Page - Analog Devices |
1 / 16 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. AD10242 FEATURES Two Matched ADCs with Input Signal Conditioning Selectable Bipolar Input Voltage Range ( 0.5 V, 1.0 V, 2.0 V) Full MIL-STD-883B Compliant 80 dB Spurious-Free Dynamic Range Trimmed Channel-Channel Matching APPLICATIONS Radar Processing Communications Receivers FLIR Processing Secure Communications Any I/Q Signal Processing Application The AD10242 operates with ±5.0 V for the analog signal condi- tioning with a separate +5.0 V supply for the analog-to-digital conversion. Each channel is completely independent allowing operation with independent encode or analog inputs. The AD10242 also offers the user a choice of analog input signal ranges to minimize additional signal conditioning required for multiple functions within a single system. The heart of the AD10242 is the AD9042 which is designed specifically for appli- cations requiring wide dynamic range. The AD10242 is manufactured by Analog Devices on our MIL-PRF-38534 MCM line and is completely qualified. Units are packaged in a custom cofired ceramic 68-lead gull wing package and specified for operation from –55 °C to +125°C. Contact the factory for additional custom options including those which allow the user to ac couple the ADC directly, by- passing the front end amplifier section. Also see the AD9042 data sheet for additional details on ADC performance. PRODUCT HIGHLIGHTS 1. Guaranteed sample rate of 40 MSPS. 2. Dynamic performance specified over entire Nyquist band; spurious signals @ 80 dBc for –1 dBFS input signals. 3. Low power dissipation: <2 W off ±5.0 V supplies. 4. User defined input amplitude. 5. Packaged in 68-lead ceramic leaded chip carrier. PRODUCT DESCRIPTION The AD10242 is a complete dual signal chain solution including onboard amplifiers, references, ADCs, and output buffering pro- viding unsurpassed total system performance. Each channel is laser trimmed for gain and offset matching and provides channel- to-channel crosstalk performance better than 80 dB. The AD10242 utilizes two each of the AD9631, OP279, and the AD9042 in a custom MCM to gain space, performance, and cost advantages over solutions previously available. FUNCTIONAL BLOCK DIAGRAM OP279 OP279 AD9042 AD9631 9 12 TIMING AIN3 AIN2AIN1 D11B (MSB) D10B D9B D8B D7B D0B (LSB) D1B D2B D3B D4B D5B D6B D9A D10A D11A (MSB) (LSB) D0A D1A D2A D3A D4A D5A D6A D7A D8A ENC ENC AD10242 5 VREF OUTPUT BUFFERING UNEG UCOM UPOS OP279 OP279 AD9042 AD9631 7 12 TIMING AIN2 AIN1 VREF OUTPUT BUFFERING AIN3 UPOS UNEG UCOM ENC ENC 6 8 7 62 63 56 55 64 57 19 20 21 22 23 24 25 17 18 12 3 4 28 29 31 32 33 36 40 41 42 38 37 39 52 51 49 48 47 46 45 Dual, 12-Bit, 40 MSPS MCM A/D Converter with Analog Input Signal Conditioning a One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 World Wide Web Site: http://www.analog.com Fax: 617/326-8703 © Analog Devices, Inc., 1997 |
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