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LTC2239 Datasheet(PDF) 1 Page - Linear Technology |
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LTC2239 Datasheet(HTML) 1 Page - Linear Technology |
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1 / 24 page  1 LTC2239 2239fa 10-Bit, 80Msps Low Noise 3V ADC FEATURES DESCRIPTIO TYPICAL APPLICATIO ■ Sample Rate: 80Msps ■ Single 3V Supply (2.7V to 3.4V) ■ Low Power: 211mW ■ 61.6dB SNR at 70MHz Input ■ 85dB SFDR at 70MHz Input ■ No Missing Codes ■ Flexible Input: 1VP-P to 2VP-P Range ■ 575MHz Full Power Bandwidth S/H ■ Clock Duty Cycle Stabilizer ■ Shutdown and Nap Modes ■ Pin Compatible Family 125Msps: LTC2253 (12-Bit), LTC2251 (10-Bit) 105Msps: LTC2252 (12-Bit), LTC2250 (10-Bit) 80Msps: LTC2229 (12-Bit), LTC2239 (10-Bit) 65Msps: LTC2228 (12-Bit), LTC2238 (10-Bit) 40Msps: LTC2227 (12-Bit), LTC2237 (10-Bit) 25Msps: LTC2226 (12-Bit), LTC2236 (10-Bit) 10Msps: LTC2225 (12-Bit) ■ 32-Pin (5mm × 5mm) QFN Package The LTC ®2239 is a 10-bit 80Msps, low power 3V A/D converter designed for digitizing high frequency, wide dynamic range signals. The LTC2239 is perfect for de- manding imaging and communications applications with AC performance that includes 61.6dB SNR and 85dB SFDR for signals well beyond the Nyquist frequency. DC specs include ±0.1LSB INL (typ), ±0.1LSB DNL (typ) and ±0.5LSB INL, ±0.5LSB DNL over temperature. The transition noise is a low 0.08LSBRMS. A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.6V logic. A single-ended CLK input controls converter operation. An optional clock duty cycle stabilizer allows high perfor- mance at full speed for a wide range of clock duty cycles. – + INPUT S/H CORRECTION LOGIC OUTPUT DRIVERS 10-BIT PIPELINED ADC CORE CLOCK/DUTY CYCLE CONTROL FLEXIBLE REFERENCE D9 • • • D0 CLK REFH REFL ANALOG INPUT 2239 TA01 OVDD OGND SNR vs Input Frequency, –1dB, 2V Range APPLICATIO S ■ Wireless and Wired Broadband Communication ■ Imaging Systems ■ Ultrasound ■ Spectral Analysis ■ Portable Instrumentation INPUT FREQUENCY (MHz) 0 55 56 58 59 60 65 62 50 100 2239 G09 57 63 64 61 150 200 , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. |
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